Eastern Mojave Vegetation Field Notes (Continued)  
 

Tom Schweich  

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Contents
Literature Cited
   When I first read the field notes of Annie Alexander and Louise Kellogg, I was fascinated by the descriptions they wrote about the places they went and the plants and animals they found there. By publishing my field notes on the Internet I hope to follow a little bit in their tradition.

 

 

   

 

2023

 

 

   

 

March 2023

 

Full Size ImageStep 1. Move the sprinklers and landscaping.  
 

Step 1. Move the landscaping and sprinklers.

 
Full Size ImageConcrete pavers in place, plants not moved yet.  

 

29 March 2023

Concrete pavers.


Full Size ImageTunnel cut through siding.  
 

2:18 PM, Tunnel cut through siding.


Full Size ImageOutside tunnel portal installed.  
 

4:05 PM, Tunnel portal installed.

Locations: DeLong Park (City of Golden). Kinney Run.
Full Size ImageHairy Willow Herb in Kinney Run.
Full Size ImageWild hops (Humulus lupulus) in Kinney Run.  

 

Walk in Kinney Run with Suzy Stutzmann and Laurel Starr.

Full Size Image
White Top plants arising from a rhizome.

   

 

31 March 2023

 

Locations: Dinosaur Ridge.  

 

Hogback Fire

Date Inc # Name Type Location Comment
3/31/2023 14:51 JEX-233
PN P59A (1522)
Hogback Wildfire Jefferson COunty, Hwy 93 Approx 3 miles North of Morrison, CA

 

   

 

April 2023

 

Full Size ImageFour foot block of pavers; plants moved.  
 

Four foot solid block of pavers.

 
Full Size ImageSenecio integerrimus weeded on Schweich Hill.  

 

2 April 2023

Weeding at Schweich Hill.


Full Size ImagePlants moved to new position.  
 

Some of the plants moved.

 
Full Size ImageAll the plants moved, but not the rock yet.  

 

3 April 2023

Moved the buckwheat and the Gaillardia. Moving the rock is next.

 
Full Size ImageAdded the shelf inside.  

 

6 April 2023

Built and installed the shelf.

 
Full Size ImageMoved the rock and completed the outline of pavers.
Full Size ImageSolny watches from the window.  

 

7 April 2023

Moved the rock and then completed the outline of the pavers. The tunnel has bubble wrap inside it to hold the carpet against the walls until the glue dries.

 
Full Size ImageSection 1 framed.  

 

9 April 2023

Framed Section 1.


Full Size ImageSection 1 frame primed.  
 

Primed Section 1. Note how I had to move it to prime the back sides.

 
Full Size ImageSection 1 painted and moved into place.  

 

11 April 2023

Section 1 painted (2 coats) and moved into place.

 

Locations: Schweich Hill.
Full Size ImageCrepis occidentalis (?) on Schweich Hill.  

 

10 April 2023

Weeding at Schweich Hill.

 

Other articles:
• Dakota Ridge Trail:   along ridge;   at viewpoint;   along ridge;  along trail.;   near jct.;

Locations: Dinosaur Ridge.
Full Size ImageNorthern edge of burned area.  

 

13 April 2023

Field trip to Dinosaur Ridge to review damage from Hogback Fire.

Full Size Image
Likely Toxicoscordion paniculatum whose leaf tips were scorched by the Hogback Fire (2023).
Full Size Image
View to the northwest of the Hogback Fire.
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Burned ponderosas and junipers at the observation site.
Full Size Image
Area burned by the Hogback Fire to the southwest.
Full Size Image
Area burned by the Hogback Fire to the northwest.
Full Size Image
Possible Physaria vitulifera bellii.
Full Size Image
View southward across the water gap after the Hogback Fire.
Full Size Image
View northward from burned to unburned areas.
Full Size Image
View northward across the water gap partially burned by the Hogback Fire.

Full Size ImageThe catio on 13 April 2023.  
 

Today I assembled and erected the back wall.

   

 

Saturday, 15 April 2023

 

Full Size ImageSolny and Myshka want to know when the catio will be finished.
Full Size ImageThe catio on 15 April 2023.  
 

Today's progress was to paint the front surfaces of the back wall.

   

 

Sunday, 16 April 2023

Front wall in place and primed.


Full Size ImageBasic framing and priming ot front wall.  
 

Basic framing on front wall.

   

 

Monday, 17 April 2023

 
   

DeLong Weedbuster work day and a supply run to Home Depot.


Full Size ImageDoor outline framed, plus some miscellaneous pieces for wire placement.  
 

Door framed and miscellaneous framing and pieces cut.

   

 

Tuesday, 18 April 2023

 

Full Size ImageOne coat of paint.  
 

Future tunnel portal framed. One coat of paint all over.

   

 

Wednesday, 19 April

 

Full Size ImageAll the framing in place. Second coat of paint. Also finished the door; primed and one coat of paint.  
 

Cool and windy today. Installed the last pre-painted frames, primed and one coat of paint on the door.

   

 

Earth Day, Saturday, April 22, 2023

 

Other articles:
• 23rd Street:   at DeLong Park;

Locations: DeLong Park (City of Golden).
Full Size ImageDeLong Park on Earth Day, April 22, 2023.  

 

Earth Day at DeLong Park sh=nowed out.

 
Full Size ImageStarting to frame the roof.  

 

Sunday, 23 April 2023

Working on the roof.

 

Other articles:
• 23rd Street:   near Table Dr;
Full Size ImageA dandelion-filled lawn.
Full Size ImagePurlins installed, now blocking between the purlins.  

 

Monday, 24 April

Weeding at DeLong Park.

Full Size Image
Purlins installed, now blocking between the purlins.

 

Locations: Golden History Park.
Full Size ImageUnknown horticultural Liliaceae at Golden History Park  

 

Tuesday, 25 April 2023

Walk through at Golden History Park.

   

 

Thursday, 27 April 2023

 

Locations: Schweich Hill.
Full Size ImageNothocalai cuspidata “Prairie False Dandelion” on Schweich Hill.
Full Size ImageCar tracks on Schweich Hill.  

 

Weeding at Schweich Hill.


Full Size ImageCatio on 27 April 2023
Full Size ImageRoof on 27 April 2023, before priming.  
 

Today's progress on the catio, finished blocking the roof and prime painted.

   

 

Friday, 28 April 2023

 

Other articles:
• Arapahoe Street:   at parkway;
Full Size ImageFrasera speciosa beginning to bloom in my parkway (4/28/2023)  

 

Frasera speciosa blooming in my parkway.

Other articles:
• Arapahoe Street:   near 5th;
Full Size ImageThe vault in the storm drain is full again.  

 

The vault of the storm drain at 5th and Arapahoe is full again.


Full Size ImageFirst coat of paint on the roof framing, 28 Apr 2023.  
 

Today I put the first coat of paint on the roof framing.

   

 

Saturday, 29 April 2023

 

Other articles:
• Arapahoe Street:   at parkway;
Full Size ImageLast night, someone broke off an irrigation pipe, stuck the pipe on the support, and bent the support over.
Full Size ImageBootprints of whoever vandalized my parkway sprinklers.  

 

Senseless vandalism in my parkway.


Full Size ImageRoof frame painted, corrugated supports installed.
Full Size ImageDifferent view (29 Apr 2023).
Full Size ImageView from the deck of the polycarbonate sheet supports.  
 

Painted the roof frame, installed drip edge, and installed corrugated supports.

 
Full Size ImageCatio enclosure complete (4/30/2023).
Full Size ImageSolny and Myshka, first time in the full enclosure.
Full Size ImageHow do I get out of here?  

 

Sunday, 30 April 2023

Catio enclosure finished.

Full Size Image
Myshka figured out how to jump up on the 2x4.

 

   

 

May 2023

 

 
Full Size ImageSolny on the upper shelf.
Full Size ImageFinished enclosure with a few temporary shelves.
Full Size ImageFinished enclosure with a few temporary shelves.  

 

Tuesday, 2 May 2023

Installed 3 shelves temporarily until the carpet order comes in.

Full Size Image
Bare shelves inside the enclosure.

   

 

Thursday, 4 May 2023

 

Locations: Schweich Hill.
Full Size Image“Nuttall's Violet” on Schweich Hill.
Full Size ImageWeeding patch that started with Western Hawks-beard.  

 

Weeding with Cathy at Schweich Hill.

Full Size Image
Three weeding patches on Schweich Hill.

Full Size ImagePutting the landscaping back together.  
 

Worked around the catio putting the landscaping back together.

 

Locations: Golden History Park.  

 

Friday, 5 May 2023

Walk through at Golden History Park.


Full Size ImageTwo flowers open.
Full Size ImageFlowers on a Bartlett Pear, Pyrus communis L.  
 

Frasera speciosa beginning to bloom.

   

 

Monday, 8 May 2023

 

Locations: Schweich Hill.
Full Size ImageLaterally migrating social trail on Schweich Hill.
Full Size ImageFirst fully open flower in Schweich Hill.  

 

Looking at migrating trails on Schweich Hill.

   

 

Tuesday, 9 May 2023

 

Locations: Eagle Ridge.
Full Size ImageColl. No. 2918, Musineon divaricatum.
Full Size ImageColl. No. 2918, Musineon divaricatum.  

2918   

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Apiaceae

Musineon divaricatum (Pursh) Raf.  Leafy Wildparsley.

Eagle Ridge, Jefferson County, Colorado. West-southwest-facing slope of Eagle Ridge, a locally named ridge of upturned Dakota Group between US Highway 6 and Eagleridge Drive, between Stonebridge entrance and Kinney Run, 3.75 km. south southeast of the GNIS location of Golden. 39.7301N, 105.2139W. WGS 1984 Elev. 1825 m. Also here: Lomatium orientale, Helianthus pumilis, Mertensia lanceolata, Astragalus drummondii, Scutellaria brittonii, and Cercocarpus montanus.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2918. 9-May-2023

Full Size Image
Coll. No. 2918, Musineon divaricatum.
Full Size Image
Coll. No. 2918, Musineon divaricatum.
   

Stalking the wild pseudo-cymopterus. (Turns out it was Musineon divaricatum.)

   

On top of Eagle Ridge.

   

 

Friday, 12 May 2023

 

Other articles:
• Tucker Gulch Trail:   at crossing;

Locations: Tucker Gulch (lower).
Full Size ImageLower bridge over Tucker Gulch.  

 

Review of Tucker Gulch.

Full Size Image
View downstream from the bridge.
Full Size Image
View upstream from the bridge.

Other articles:
• Tucker Gulch Trail:   bet. X-ings;

Locations: Tucker Gulch (lower).
Full Size ImageLarge colony of prickly pear in front of a thicket of box elder and siberian elm.  

   

Other articles:
• Tucker Gulch Trail:   at wire xing;

Locations: Tucker Gulch (lower).
Full Size ImageTangle of brush.  

   

Other articles:
• Tucker Gulch Trail:  just above bridge;   at crossing;   just below bridge;

Locations: Tucker Gulch (lower).
Full Size ImageMulti-trunk box elder and then a chokecherry on the creek-side of the trail.  

 

At the bridge.

Full Size Image
View upstream from the second bridge.
Full Size Image
View downstream from the second bridge.
Full Size Image
Tangle of down branches just above the bridge.

Other articles:
• Tucker Gulch Trail:   near Fairy Garden;

Locations: Tucker Gulch (lower).
Full Size ImageTangle of down branches above the bridge.  

 

Between the bridge and the fairy garden.

Other articles:
• Tucker Gulch Trail:   at 2nd;

Locations: Tucker Gulch (lower).
Full Size ImageUpper end of the social trail.  

 

Nearing 1st Street.

Other articles:
• Tucker Gulch Trail:   near 1st;

Locations: Tucker Gulch (lower).
Full Size ImageMyrtle spurge above the Tucker Gulch Trail.  

 

Myrtle spurge on the hillside above the trail.

Full Size Image
Myrtle spurge above the Tucker Gulch Trail.

Other articles:
• Tucker Gulch Trail:   near 1st;

Locations: Tucker Gulch (lower).
Full Size ImageView downstream from the 1st Street bridge.  

 

View downstream from the bridge.

Other articles:
• Tucker Gulch Trail:  near East St.;   below 1st St;

Locations: Tucker Gulch (lower).
Full Size ImageView from East Street down to the creek.  

   

Other articles:
• Tucker Gulch Trail:   near crossing;   near crossing;

Locations: Tucker Gulch (lower).
Full Size ImageView downstream from the crossing.  

 
Full Size Image
View upstream at the crossing.
 

   

 

Saturday, 13 May 2023

 

Literature Cited:
- Buerki, Sven, Porter P. Lowry II, nadir Alvarez, Sylvain G. Razafimandimbison, Phillipe Kupfer, & Martin W. Callmander, 2010.
- Zhou, Q., Cai, Q., Zheng, Y., Wu, Z., & Mao, J, 2019.

Other articles:
• Golden Checklist Flora:  Xanthoceras sorbifolium;  

2919   

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Sapindaceae

Xanthoceras sorbifolium Bunge.  Yellowhorn.

Golden, Jefferson County, Colorado. Near the Cheyenne Street end of the alley between 4th and 5th Streets, 1.22 km. northwest of the GNIS location of Golden. 39.7609N, 105.2296W. WGS 1984 Elev. 1764 m. North side of alley, rooted between telephone pole and fence post, also here Ericameria nauseosa var. graveolens, and various annual weeds. Planted in the former garden at 409 Cheyenne Street (K. Boland, pers. Comm, 2023), though in a different location than where this collection was found. The original location was destroyed by housing construction.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2919. 13-May-2023

Coll. No. 2919, 13 May 2023, characters observed: Perennial woody shrub or small tree, to 2 m.; Stem, unarmed; Leaves, alternate, ovate, 95 mm. × 45 mm. wide, compound, pinnate, leaflets #11, 24 mm. × 8 mm. wide, lanceolate, sharply serrate distally, adaxial surface minutely hairy on veins, abaxial surface puberulent; Inflorescence, clusters on previous year's stems; Flowers borne singly; Petioles, 18 mm.; Sepals, #5, 8 mm. × 5 mm. wide, ovate, rounded; Petals, #5, free to base, 20 mm. × 7 mm., oblanceolate, margin crisped(?), greenish-yellow to white distally, ciliate at base; Nectary(???) 5-lobed, orange, club-shaped; Stamens, #8, included, different lengths; Anthers, 1 mm., versatile, yellow; Stigmas, #1, bifid.

Full Size Image
Leaf and flower of Coll. No. 2919, Xanthoceras sorbifolium in the alley.
Full Size Image
Details of Coll. No. 2919, Xanthoceras sorbifolium in the alley.
Full Size Image
Coll. No. 2919, Xanthoceras sorbifolium in the alley.
Full Size Image
Fruit of Xanthoceras sorbifolium
Full Size Image
Coll. No. 2919, Xanthoceras sorbifolium

   

 

Sunday, 14 May 2023, Mother's Day

 

Other articles:
• Welch Ditch:   along the ditch;   at cascade;

Locations: Welch Ditch.
Full Size ImageCascade coming from Windy Saddle.  

 

Walk up the Peaks-to-Plains Trail and on part of the Welch Ditch

Full Size Image
Viola canadensis beside the Welch Ditch.

   

 

Monday, 15 May 2023

The day the sewer vacuum truck showed up.

Other articles:
• Arapahoe Street:   at alley;
Full Size ImageThe sewer cleanout truck down at the gulch.
Full Size ImageAlley after passage of the sewer cleanout truck.  

 

The city sewer cleanout truck makes a neighborhood visit.

Full Size Image
Alley after passage of the sewer cleanout truck.

   

 

Tuesday, 16 May 2023

Schweich Hill and catio work.


Full Size ImageTire tracks in the southeast corner.
Full Size ImageLower part of social trail.
Full Size ImageEscobaria missouriensis in bloom on Schweich Hill.  
 

Weeding at Schweich Hill.

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Location of measured cross-section.
Full Size Image
Escobaria missouriensis in bloom on Schweich Hill.
Full Size Image
A section where smooth brome was weeded several weeks previously.

Full Size ImageSolny on the new top shelf, accessed by the pine branch.
Full Size ImageSolny on the new top shelf, accessed by the pine branch.  
 

Covered two shelves with indoor-outdoor carpet.

   

 

Wednesday, 17 May 2023

 

Full Size ImageDomestic honey bee on Frasera speciosa.
Full Size ImageThe larger of several Frasera speciosa blooming in my parkway.  
 

The larger of two Frasera speciosa blooming in my parkway.


Full Size ImageInside of catio with new covered shelf and pine log.  
 

Inside of the catio.

   

 

Saturday, 20 May 2023

 

Other articles:
• Arapahoe Street:   at parkway;   near 5th;
Full Size ImageParkway at 5th and Arapahoe Streets, 20 May 2023
Full Size ImageParkway on 20 May 2023.  

 

The parkway

   

 

Sunday, 21 May 2023

Schweich Hill, weeding and a collection.

   

 

Sunday, 21 May 2023

 
  2920   

Lomatium orientale

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Apiaceae

Lomatium orientale J.M. Coult. & Rose.  Salt-and-Pepper.

Schweich Hill, Jefferson County, Colorado. Near northern boundary, near the bottom of the original hill slope, 2.30 km. northwest of the GNIS location of Golden 39.7687N, 105.2327W. WGS 1984 Elev. 1809 m. with Artemisia ludoviciana, in an area of encroaching smooth brome.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2920. 21-May-2023


Full Size ImageEchinocereus viridiflorus in a place just cleared of Alyssum simplex.  
 

Weeding at Schweich Hill.

   

 

Monday, 22 May 2023

 

   

 

Monday, 22 May 2023

 

Full Size ImageColl. No. 2921, Festuca saximontana Poa sp.  
2921   

Revegetation grass.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Festuca saximontana Rydb.  Rocky Mountain Fescue.

Poa sp., Jan Wingate, 4/23/2024, “reveg. grass?”

Magpie Gulch, Jefferson County, Colorado. Mouth of the canyon of Magpie Gulch, along an old road, about 115 m. west of the parcel boundary, 2.16 km. west northwest of the GNIS location of Golden. 39.7599N, 105.2398W. WGS 1984 Elev. 1809 m. Most likely a revegetation grass in an open grassland.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2921. 22-May-2023

Collection No. 2921, 22 May 2023, characters observed: Perennial grass, 25 cm., cespitose; Stem, glabrous below inflorescence; Leaves, Sheath, 19-20 mm., open; Ligule, membranous, 1 mm., auricles, absent; Blade, 40-42 mm. × >1 mm. wide, involute [conduplicate?]; Inflorescence, 1 per culm, >leaves, panicle, 55 mm. × 8 mm. wide, branched 2×; Rachis, not extended beyond upper spikelet, scabrous; Spikelets, few (17±), 7 mm. × 2 mm. wide, 1 per node, pedicels 3 mm.; Compression, lateral; Glumes, lower, 4 mm., veins, 3, upper, 4.5 mm., ≤lowest floret, veins, 5, keeled, awns, 0; Florets, 3 per spikelet; Axis, extended beyond upper floret; Lemma, 4.5 mm., proximally glabrous, distally short wavy hairy, keel, glabrous; Palea, 3.5 mm., <lemma; Anthers, 1.3 mm.; Achene, brown.


Full Size ImageColl. No. 2922, Festuca trachyphylla.
Full Size ImageInflorescence of Coll. No. 2922, Festuca trachyphylla.  
2922   

Revegetation grass.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Festuca trachyphylla (Hack.) Krajina.  Hard Fescue.

Magpie Gulch, Jefferson County, Colorado. Mouth of the canyon of Magpie Gulch, along an old road, about 165 m. west of the parcel boundary, 2.20 km. west northwest of the GNIS location of Golden. 39.7601N, 105.2401W. WGS 1984 Elev. 1844 m. Most likely a revegetation grass in an open grassland.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2922. 22-May-2023

Coll. No. 2922, 22 May 2023, characters observed: Perennial grass, 40 cm., cespitose; Leaves, sheath, 21-28 mm., open, ligule, membranous, 0.2 mm., extremely short, auricles, minimal, 0.5 mm. [see illustration in Shaw (2008, fig. 242)], blade, 23-80 mm. × 0.6 mm. wide, involute [conduplicate?]; Inflorescence, 1 per culm, contracted panicle, 55 mm. × 9 mm.; Spikelets, many, 8 mm. × 2 mm. wide, borne singly, pedicels, 2 mm.; Disarticulation, between florets; Glumes, lower, 2.5 mm. upper, 4 mm., <lowest floret, veins, 3, ±parallel, awns, 0, margins, distally ciliate; Florets, 4 per spikelet; Axis, short hairy or long scabrous, not extended beyond upper floret; Lemma, 4.5 mm., >glumes, pubescent distally, veins, ≥5, glabrous, awns, 1, attached end of lemma, 1.5 mm., straight; Palea, 4 mm., <lemma, Anthers, 3 mm.


Full Size ImageColl. No. 2923, Parietaria pensylvanica.  
2923   

Parietaria pennsylvanica

Plants of Jefferson County Open Space
Jefferson County, Colorado
Urticaceae

Parietaria pensylvanica Willd.  Pennsylvania Pellitory.

Magpie Gulch, Jefferson County, Colorado. Small branch of Magpie Gulch, southeast-facing slope, 450 m. west of entrance gate, 2.48 km. west northwest of the GNIS location of Golden. 39.7598N, 105.2427W. With grasses around the base of a small boulder in a moist spot in full sun.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2923. 22-May-2023


Full Size ImageColl. No. 2924, Gilia ophthalmoides  
2924   

Aliciella, maybe A. pinnatifida Gilia, per the arachnoid, cottony hairs.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Polemoniaceae

Gilia ophthalmoides Brand.  Pinyon Gilia.

Magpie Gulch, Jefferson County, Colorado. On the ridge between Magpie and Nightbird gulches, along a social and/or game trail, 430 m. northwest of the gate to the parcel, 2.48 km. west northwest of the GNIS location of Golden. 39.7613N, 105.2421W. WGS 1984 Elev. 1898 m. Plant slightly sticky, lower stem with arachnoid, cottony hairs, tube and throat extended 3 mm. when dry, corolla throat yellow, petals abaxial purple, adaxial white. Exposed ridge with Cercocarpus montanus the dominant shrub. Uncommon; there are only six other collections within 15 km.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2924. 22-May-2023

Locations: Magpie Gulch.
Full Size ImageSmall Celtis reticulata (?) in Magpie Gulch.  

   

Locations: Magpie Gulch.
Full Size ImageView up Magpie Gulch.
Full Size ImageView down Magpie Gulch.  

 

Part-way up Magpie Gulch.

Locations: Magpie Gulch.
Full Size ImagePackera fendleri on the ridge between Magpie and Nightbird gulches.
Full Size ImageA large specimen of Echinocereus viridiflorus.  

 

Plants on the ridge between Magpie and Nightbird gulches.

 

Locations: DeLong Park (City of Golden).  

 

Thursday, 25 May 2023

Weeding at DeLong Park

 

Locations: Schweich Hill.
Full Size ImageSporobolus cryptandrus in the loose gravel of the trail.
Full Size ImageA patch that I have been weeding of smooth brome.  

 

Friday, 26 May 2023

Weeding on Schweich Hill

   

 

Sunday, 28 May 2023

 

Other articles:
• Illinois Street:   bet. 6th Av and public st.;

Locations: Deadman Gulch.
Full Size ImageColl. No. 2925, Rhamnus cathartica on the bank of Deadman Gulch.  

2925   

Rhamnus cathartica

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Rhamnaceae

Rhamnus cathartica L.  European Buckthorn.

Deadman Gulch, Jefferson County, Colorado. Also locally called “Kinney Run,” in a triangular city parcel along the projection of Illinois Street below US Highway 6. 39.7373N, 105.2151W. WGS 1984 Elev. 1782 m. One plant with 22 stems, rooted in bank of creek. With Salix exigua and Prunus virginiana.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2925. 28-May-2023

Full Size Image
Coll. No. 2925, Rhamnus cathartica.

Locations: Eagle Ridge.
Full Size ImageColl. No. 2925, Agoseris parviflora.  

2926   

Crepis occidentalis

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Agoseris parviflora (Nutt.) D. Dietr.  Steppe Goat-Chicory.

Eagle Ridge, Jefferson County, Colorado. Local name for a small hogback composed of vertically-upturned Cretaceous-age Dakota Group between Deadman Gulch and US Highway 6, about 3.5 km. south of the GNIS location of Golden. 39.7316N, 105.2141W. WGS 1984 Elev. 1853 m. Teeth mostly in 5+ pairs; flower color yellow. Nearly flat soil along top of hogback, with Helianthus pumilis, Cercocarpus montanus, Penstemon virens, Alyssum simplex, Erodium cicutarium, and Bromus tectorum.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2926. 28-May-2023

Other articles:
• Arapahoe Street:   near 5th;
Full Size Image“Native Prairie Plants”  

 

I added a sign from Prairie Moon Nursery to the parkway.

 

Locations: Schweich Hill.
Full Size ImagePenstemon secundiflorus “Sidebells Penstemon” on Schweich Hill.
Full Size ImagePenstemon virens “Front Range Beardtongue” on Schweich Hill.  

 

Tuesday, 30 May 2023

Mostly weeding on Schweich Hill.

 

Locations: Magpie Gulch.
Full Size ImageGolden from Magpie Gulch.
Full Size ImageSmall cascade in Magpie Gulch.  

 

Wednesday, 31 May 2023

Full Size Image
Small cascade in Magpie Gulch.
 

Full Size ImageColl. No. 2927, Dodecatheon pulchellum in Magpie Gulch.
Full Size ImageColl. No. 2927, Dodecatheon pulchellum  
2927   

Dodecatheon pulchellum

Plants of Jefferson County Open Space
Jefferson County, Colorado
Primulaceae

Dodecatheon pulchellum (Raf.) Merr.  Beautiful Shootingstar.
      [=Primula pauciflora (Durand) A. L. Mast & Reveal]

Magpie Gulch, Jefferson County, Colorado. In Mt. Galbraith Park, beside a bed rock cascade of the creek in Magpie Gulch, about 900 m. west of the gate to the parcel, 2.81 km. west northwest of the GNIS location of Golden. 39.7588N, 105.246W. WGS 1984 Elev. 1902 m. Mesic habitat formed by rock outcrops, with Populus × acuminata, Acer glabrum, Physocarpus monogynus, Rubus deliciosus, Ribes cereum, and Prunus virginiana.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2927. 31-May-2023


Full Size ImageColl. No. 2928, Heuchera parvifolia.  
2928   

Heuchera bracteata

Plants of Jefferson County Open Space
Jefferson County, Colorado
Saxifragaceae

Heuchera parvifolia Nutt. ex Torr. & A. Gray.  Littleleaf Alumroot.

Magpie Gulch, Jefferson County, Colorado. In Mt. Galbraith Park, beside a bed rock cascade of the creek in Magpie Gulch, about 900 m. west of the gate to the parcel, 2.81 km. west northwest of the GNIS location of Golden. 39.7588N, 105.2461W. WGS 1984 Elev. 1897 m. Mesic habitat formed by rock outcrops, with Populus × acuminata, Acer glabrum, Physocarpus monogynus, Rubus deliciosus, Ribes cereum, and Prunus virginiana.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2928. 31-May-2023

Other articles:
• Golden Checklist Flora:  Lomatium orientale;
Full Size ImageColl. No. 2929, Lomatium orientale.  

2929   

Lomatium orientale.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Apiaceae

Lomatium orientale J.M. Coult. & Rose.  Salt-and-Pepper.

Magpie Gulch, Jefferson County, Colorado. In Mt. Galbraith Park, beside a bed rock cascade of the creek in Magpie Gulch, about 900 m. west of the gate to the parcel, 2.81 km. west northwest of the GNIS location of Golden. 39.7589N, 105.2462W. WGS 1984 Elev. 1893 m. Dry slope west and away from rock cascade.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2929. 21-May-2023

Other articles:
• Golden Checklist Flora:  Crataegus erythropoda;
Full Size ImageColl. No. 2930, Crataegus erythropoda.  

2930   

Crataegus succulenta

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Crataegus erythropoda Ashe.  Cerro Hawthorn.

Magpie Gulch, Jefferson County, Colorado. In Mt. Galbraith Park, beside the creek in Magpie Gulch, about 1100 m. west of the gate to the parcel, 2.99 km. west northwest of the GNIS location of Golden. 39.7585N, 105.2477W. WGS 1984 Elev. 1930 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2930. 31-May-2023


Full Size ImageColl. No. 2931, Mentzelia albicaulis.  
2931   

Mentzelia sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Loasaceae

Mentzelia albicaulis (Douglas ex Hook.) Douglas ex Torr. & A. Gray.  White-Stem Blazing Star.

Magpie Gulch, Jefferson County, Colorado. Mount Galbriath Park, north side of Magpie gulch, 2.87 km. west northwest of the GNIS location of Golden. 39.7596N, 105.2463W. WGS 1984 Elev. 1925 m. Leaves deeply pinnatifid; petals short, yellow. Steep, sunny, grassy slope about 100 m. above creek. Also collected here: Euphorbia brachycera.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2931. 21-May-2023

Other articles:
• Golden Checklist Flora:  Euphorbia peplus;
Full Size ImageColl. No. 2931.1, Euphorbia peplus.  

2931.1   

Euphorbia brachycera

Plants of Jefferson County Open Space
Jefferson County, Colorado
Euphorbiaceae

Euphorbia peplus L.  Petty Spurge.

Magpie Gulch, Jefferson County, Colorado. Mount Galbraith Park, north side of Magpie gulch, about 850 m. west of the parcel gate, 2.87 km. west northwest of the GNIS location of Golden. 39.7596N, 105.2463W. WGS 1984 Elev. 1925 m. Annual, erect; leaves alternate, oblanceolate, entire. Steep, sunny, grassy slope about 100 m. above creek. Also collected here: Mentzelia albicaulis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2931.1 31-May-2023


Full Size ImageColl. No. 2932, Corydalis aurea.  
2932   

Corydalis aurea

Plants of Jefferson County Open Space
Jefferson County, Colorado
Fumariaceae

Corydalis aurea Willd.  Scrambled Eggs.

Magpie Gulch, Jefferson County, Colorado. Mount Galbraith Park, north side of Magpie gulch, about 730 m. west of the parcel gate, 2.87 km. west northwest of the GNIS location of Golden. 39.7596N, 105.2453W. WGS 1984 Elev. 1912 m. Steep, sunny, grassy slope about 85 m. above creek.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2932. 31-May-2023


Full Size ImageColl. No. 2933, Allium textile  
2933   

Allium textile.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Alliaceae

Allium textile A. Nelson & J.F. Macbr.  Textile Onion.

Magpie Gulch, Jefferson County, Colorado. Mount Galbraith Park, north side of Magpie gulch, about 490 m. west of the parcel gate, 2.55 km. west northwest of the GNIS location of Golden. 39.7608N, 105.243W. WGS 1984 Elev. 1917 m. Bulb coat fibrous, appearing woven; flowers white. Moderately steep east-facing grassy slope above patch of Cercocarpus montanus; also here: Phlox multiflora. Common.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2933. 31-May-2023


Full Size ImageColl. No. 2934, Descurainia pinnata ssp. brachycarpa.  
2934   

Descurainia sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Brassicaceae

Descurainia pinnata (Walter) Britton ssp. brachycarpa (Richardson) Detling, Amer.Midl. Naturalist. 22: 509.  Western Tansymustard.

Magpie Gulch, Jefferson County, Colorado. Mount Galbraith Park, north side of Magpie gulch, about 400 m. west northwest of the parcel gate, 2.46 km. west northwest of the GNIS location of Golden. 39.7607N, 105.2421W. WGS 1984 Elev. 1892 m. Stem branched distally, stellate-hairy then glandular; leaves bi-pinnate; rachis glandular; sepals yellow; fruit fusiform, glabrous; seeds biseriate; valves distinct mid-vein; ovules 18±. Around the edges of a large patch of Rhus trilobata.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2934. 31-May-2023

 

   

 

June 2023

 

   

 

Friday, June 2, 2023

Schweich Hill and Cathy's garden.

Locations: Schweich Hill.
Full Size ImagePenstemon secundiflorus “Sidebells Penstemon” on Schweich Hill.
Full Size ImagePenstemon virens “Front Range Beardtongue” on Schweich Hill.  

 

Schweich Hill


Full Size Image“Baby Slippers” Hybanthus verticillatus found in a yard in Golden.  
 

Found in a private garden in Golden.

Locations: Schweich Hill.
Full Size ImagePenstemon virens on Schweich Hill, with North Table Mountain in the background.  

 

Evening walk on Schweich Hill.

   

 

Saturday, 3 June 2023

Rainy Earth Day.

 

Other articles:
• Golden Gate Canyon Road:   along the road;

Locations: Guy Gulch.
Full Size ImageView southeast of Guy Gulch.  

 

Tuesday, 6 June 2023

Full Size Image
View northwest along Guy Gulch.
Full Size Image
Bear sign.
 

Other articles:
• Golden Checklist Flora:  Arabis pycnocarpa;
Full Size ImageColl. No. 2935, Arabis pycnocarpa var. pcynocarpa.  

2935   

Arabis pycnocarpa

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Arabis pycnocarpa M. Hopkins var. pycnocarpa.  Cream Flower Rockcress.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.803N, 105.3671W. WGS 1984 Elev. 2437 m. South-facing slope, with Artemisia frigida, Cirsium undulatum, and Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2935. 6-Jun-2023

Other articles:
• Golden Checklist Flora:  Camelina microcarpa;
Full Size ImageColl. No. 2936, Camelina microcarpa.  

2936   

Camelina microcarpa

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Camelina microcarpa Andrz. ex DC.  Little-Podded False Flax.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.803N, 105.3671W. WGS 1984 Elev. 2437 m. Simple and forked hairs; stem leaves auriculate, simple; petals 3.5 mm., yellow; fruit 6 mm.; valve midvein obscure. With Cercocarpus montanus and Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2936. 6-Jun-2023

  2936.1   

Scutellaria brittonii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Lamiaceae

Scutellaria brittonii Porter.  Britton's Skullcap.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.803N, 105.3671W. WGS 1984 Elev. 2437 m. With Cercocarpus montanus and Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2936.1 6-Jun-2023

  2936.2   

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Potentilla fissa Nutt. ex Torr. & A.Gray.  Bigflower Cinquefoil.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.803N, 105.3671W. WGS 1984 Elev. 2437 m. With Cercocarpus montanus and Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2936.2 6-Jun-2023

  2937   

Sun sedge,

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cyperaceae

Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins.  Sun Sedge.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 47 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.8032N, 105.3673W. WGS 1984 Elev. 2444 m. On the nose of a low ridge with Ribes cereum, and Artemisia frigida. Common.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2937. 6-Jun-2023

  2938   

Physaria montana.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Physaria montana (A. Gray) Greene.  Mountain Bladderpod.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 75 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.8034N, 105.3673W. WGS 1984 Elev. 2456 m. With Pinus ponderosa, Pediocactus simpsonii, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2938. 6-Jun-2023

  2938.1   

Alyssum simplex

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Alyssum simplex Rudolphi.  European Madwort.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 75 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.6 km. northwest of the GNIS location of Golden. 39.8034N, 105.3673W. WGS 1984 Elev. 2456 m. With Pinus ponderosa, Physaria montana, Pediocactus simpsonii, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2938.1 6-Jun-2023


Full Size ImageColl. No. 2939, Acer glabrum im bloom.  
2939   

Acer glabrum in bloom.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Sapindaceae

Acer glabrum Torr.  Rocky Mountain Maple.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 100 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.7 km. northwest of the GNIS location of Golden. 39.8036N, 105.3674W. WGS 1984 Elev. 2461 m. Off the east side of a small ridge, also here, Collinsia parviflora on sunny ground around the maple.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2939. 6-Jun-2023

  2939.1   

Collinsia parviflora.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Collinsia parviflora Lindl.  Maiden Blue-eyed Mary.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 100 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.7 km. northwest of the GNIS location of Golden. 39.8036N, 105.3674W. WGS 1984 Elev. 2461 m. With Juniperus scopulorum, Artemisia frigida, Eriogonum jamesii, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2939.1 6-Jun-2023

  2940   

Harbouria trachypleura.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Apiaceae

Harbouria trachypleura (A. Gray) J.M. Coult. & Rose.  Whiskbroom Parsley.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 80 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.7 km. northwest of the GNIS location of Golden. 39.8036N, 105.3677W. WGS 1984 Elev. 2460 m. Nose of small southeast plunging ridge, with Heterotheca villosa and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2940. 6-Jun-2023

  2941   

Senecio integerrimus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Senecio integerrimus Nutt.  Columbia Ragwort.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 80 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.7 km. northwest of the GNIS location of Golden. 39.8036N, 105.3678W. WGS 1984 Elev. 2466 m. leaves toothed. Nose of small southeast plunging ridge, with Juniperus scopulorum, Pediocactus simpsonii, Mertensia lanceolata, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2941. 6-Jun-2023

Other articles:
• Golden Checklist Flora:  Maianthemum racemosum amplexicaule;
Full Size ImageColl. No. 2942, Maianthemum racemosum ssp. amplexicaule.  

2942   

Maianthemum racemosa ssp. amplexicaule.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ruscaceae

Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie.  Feathery False Lily of the Valley.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 75 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8036N, 105.3679W. WGS 1984 Elev. 2467 m. Nose of small southeast plunging ridge, in deep soil under Juniperus scopulorum, with Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2942. 6-Jun-2023

Placed in Asparagaceae by Ackerfield (2022) and Plants of the World (Kew, 2023), but retained in Ruscaceae by APG4.

  2942.1   

Mertensia lanceolata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Mertensia lanceolata (Pursh) DC.  Prairie Bluebells.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 75 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8036N, 105.3679W. WGS 1984 Elev. 2467 m. Nose of small southeast plunging ridge, in deep soil under Juniperus scopulorum, with Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2942.1 6-Jun-2023

Other articles:
• Golden Checklist Flora:  Erigeron vetensis;
Full Size ImageColl. No. 2943, Erigeron vetensis.  

2943   

Erigeron vetensis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Erigeron vetensis Rydb.  Early Bluetop Fleabane.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 100 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8038N, 105.3679W. WGS 1984 Elev. 2475 m. Nose of small southeast plunging ridge, with Pediocactus simpsonii, Eriogonum jamesii, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2943. 6-Jun-2023

  2944   

Astragalus shortianus,

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus shortianus [Nutt. ex] Torr. & A.Gray.  Short's Milkvetch.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 120 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.804N, 105.3678W. WGS 1984 Elev. 2473 m. This collection is two plants that each have been split in two, plus various parts from other plants in this little colony. Nose of small southeast plunging ridge. Seems to be arranged in little colonies of 5-6 plants. Open grassy slope with some Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2944. 6-Jun-2023

Other articles:
• Golden Checklist Flora:  Microsteris gracilis;
Full Size ImageColl. No. 2945, Microsteris gracilis.
Full Size ImageColl. No. 2945, Microsteris gracilis.  

2945   

Microsteris gracilis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polemoniaceae

Microsteris gracilis (Douglas ex Hook.) Greene.  Slender Phlox.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 160 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8044N, 105.368W. WGS 1984 Elev. 2479 m. Nose of small southeast plunging ridge, with Heterotheca villosa, Ribes cereum, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2945. 6-Jun-2023

  2945.1   

Draba nemorosa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Draba nemorosa L.  Woodland Whitlow Grass.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 160 m. above the road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8044N, 105.368W. WGS 1984 Elev. 2484 m. Nose of small southeast plunging ridge, with Heterotheca villosa, Ribes cereum, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2945.1 6-Jun-2023

  2946   

Poa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Poa pratensis L.  Kentucky Bluegrass.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 220 m. above the county road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8048N, 105.3679W. WGS 1984 Elev. 2488 m. On a small southeast-facing ridge, with Artemisia dracunculus, Sedum lanceolatum, and Eriogonum jamesii.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2946. 6-Jun-2023

  2947   

Antennaria rosea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Antennaria rosea Greene.  Rosy Pussytoes.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 210 m. above the county road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8048N, 105.368W. WGS 1984 Elev. 2488 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2947. 6-Jun-2023


Full Size ImageColl. No. 2948, Salix scouleriana.  
2948   

Salix, maybe S. scouleriana?

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix scouleriana Barratt ex Hook.  Scouler's Willow.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 315 m. above the county road, north side of Jefferson County Road 70 and near western boundary, 17.8 km. northwest of the GNIS location of Golden. 39.8054N, 105.3676W. WGS 1984 Elev. 2494 m. Floral bracts black; young stamens red. Openings in forest, east-facing slope below top of ridge, bottom of rock outcrop, well above stream, with Ribes cereum, Jamesia americana, and Acer glabrum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2948. 6-Jun-2023

  2949   

Carex sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Penstemon virens Pennell ex Rydb.  Front Range Beardtongue.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 340 m. above the county road, north side of Jefferson County Road 70 and near western boundary, 17.9 km. northwest of the GNIS location of Golden. 39.8058N, 105.3678W. WGS 1984 Elev. 2501 m. Flowers just beginning to open. Open rocky slope.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2950. 6-Jun-2023

  2950   

Penstemon virens.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Penstemon virens Pennell ex Rydb.  Front Range Beardtongue.

Guy Gulch, Jefferson County, Colorado. Douglas Mountain Study Area, area along Guy Gulch, about 340 m. above the county road, north side of Jefferson County Road 70 and near western boundary, 17.9 km. northwest of the GNIS location of Golden. 39.8058N, 105.3678W. WGS 1984 Elev. 2501 m. Flowers just beginning to open. Open rocky slope.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2950. 6-Jun-2023


Full Size ImageColl. No. 2951, Osnorhiza depauperata.  
2951   

Osmorhiza, probably O. depauperata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Apiaceae

Osmorhiza depauperata Phil.  Blunt-Fruit Sweet-Cicely.

Guy Gulch, Jefferson County, Colorado. Along stream tributary to Guy Gulch, about 310 m. north of County Road 70, near the western boundary of the study area, 17.7 km. northwest of the GNIS location of Golden. 39.805N, 105.3671W. WGS 1984 Elev. 2464 m. Shaded floor of small gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2951. 6-Jun-2023

  2952   

Androsace septentrionalis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Primulaceae

Androsace septentrionalis L.  Pygmyflower Rockjasmine.

Guy Gulch, Jefferson County, Colorado. Along stream tributary to Guy Gulch about 90 m. north of County Road 70, near the western boundary of the study area, 17.7 km. northwest of the GNIS location of Golden. 39.8033N, 105.3671W. WGS 1984 Elev. 2448 m. Bracts lanceolate. Sunny spot, on shoulder of abandoned stream bar, with Rubus deliciosus and Bromus inermis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2952. 6-Jun-2023

   

 

Wednesday, 7 June 2023

 

Other articles:
• Golden Checklist Flora:  Blitum nuttallianum;
Full Size ImageColl. No. 2953, Blitum nuttallianum.
Full Size ImageInflorescence of Coll. No. 2953, Blitum nuttallianum.  

2953   

Amaranth, maybe A. blitoides.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Blitum nuttallianum Schult.  Nuttall's Povertyweed.

Golden, Jefferson County, Colorado. Southwest parkway at 900 5th Street, Golden. 39.7609N, 105.2286W. WGS 1984 Elev. 1755 m. Adventive “weed” in an area planted with purchased seed of Colorado native plants.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2953. 7-Jun-2023

 

Locations: Stonebridge Homeowners Association.
Full Size ImageStonebridge common area.
Full Size ImageStonebridge common area.  

 

Tuesday, 13 June 2023

 
  2954   

Bromus, maybe B. carinatus. Phfft! cheat grass.

 

Other articles:
• Golden Gate Canyon Road:   at Centennial Ranch;

Locations: Guy Gulch.
Full Size ImageView northwest on Guy Gulch, 14 June 2023.  

 

Wednesday, 14 June 2023

Guy Gulch in Douglas Mountain Study Area.


Full Size ImageColl. No. 2955, Salix fragilis.  
2955   

Salix fragilis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix fragilis L.  Crack Willow.

Guy Gulch, Jefferson County, Colorado. Along the creek in Guy Gulch, 115 m. southwest of the ranch house, 15.9 km. northwest of the GNIS location of Golden. 39.7943N, 105.3549W. WGS 1984 Elev. 2337 m. Trees, huge trunks, branches break easily, ♀ catkins.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2955. 14-Jun-2023


Full Size ImageColl. No. 2956, Salix lasiandra var. caudata.
Full Size ImageCatkin of Coll. No. 2956, Salix lasiandra var. caudata.  
2956   

Salix sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix lasiandra Benth. Var. caudata (Nutt.) Sudw.  Greenleaf Willow.

Guy Gulch, Jefferson County, Colorado. Along the creek in Guy Gulch, 95 m. southwest of the Centennial Ranch house, 2.48 km. south of Mt. Tom, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.7942N, 105.3549W. WGS 1984 Elev. 2340 m. Staminate catkins, small multi-trunk.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2956. 14-Jun-2023

Coll. No. 2956, 14 Jun 2023, characters observed: Shrub, tall, multistem, > 1 m.; Stems, current year's yellow-brown, shiny (like shellacked), prior year's medium brown; Leaves, petiole, 2-3 mm., without glands, blade, elliptic, 52 mm. × 18 mm. wide, margin, serrulate, tip, acute to acuminate, glabrous; Catkins, staminate, peduncles, 9-14 mm., leafy, catkin, 40 mm., elongate; Floral bracts, yellowish-tan, tips, eglandular, rounded to erose?, proximally velutinous (short wavy); Stamens, 5-6; Filaments, not hairy.


Full Size ImageColl. No. 2957, Ranunculus repens.  
2957   

Ranunculus, maybe R. repens.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Ranunculus repens L.  Creeping Buttercup.

Guy Gulch, Jefferson County, Colorado. Wet area from small creek entering Guy Gulch from the northeast, southwest side of County Road 70, 107 m. southwest of the ranch house, 15.8 km. northwest of the GNIS location of Golden. 39.7942N, 105.3546W. WGS 1984 Elev. 2336 m. Semi-aquatic; rooting at nodes, basal leaves compound; petals 11-12 mm. × 9 mm. wide, yellow.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2957. 14-Jun-2023

  2958   

Rumex acetosella.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Rumex acetosella L.  Sheep Sorrel.

Guy Gulch, Jefferson County, Colorado. Beside small creek entering Guy Gulch from the northeast, southwest side of County Road 70, 107 m. southwest of the ranch house, 15.8 km. northwest of the GNIS location of Golden. 39.7942N, 105.3546W. WGS 1984 Elev. 2336 m. Open, sunny field with short grasses.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2958. 14-Jun-2023


Full Size ImageColl. No. 2959, Salix bebbiana.
Full Size ImageCatkin of Coll. No. 2959, Salix bebbiana.  
2959   

Salix sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix bebbiana Sarg.  Bebb Willow.

Guy Gulch, Jefferson County, Colorado. Beside the creek of Guy Gulch, southwest side of County Road 70, 96 m. southwest of the ranch house, 2.48 km. south of Mt. Tom, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.7941N, 105.3548W. WGS 1984 Elev. 2342 m. Pistillate catkins, young stems reddish. Bank of creek.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2959. 14-Jun-2023

Coll. No. 2959, 14 Jun 2023, characters observed: Shrub, multi-stem, > 1 m.; Stems, not pruinose, current year reddish brown; Leaves, alternate, elliptic, 20 mm. × 9 mm. wide, petiole 2-3 mm., pubescent both sides; Catkins, pistillate, 35 mm., open, loosely flowered, floral bracts, tan, stipe, 3 mm.; Capsules, 6 mm., pubescent.

  2959.1   

Equisetum sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Equisetaceae

Equisetum arvense L.  Field Horsetail.

Guy Gulch, Jefferson County, Colorado. In the creek of Guy Gulch, southwest side of County Road 70, 125 m. southwest of the ranch house, 15.8 km. northwest of the GNIS location of Golden. 39.7941N, 105.3548W. WGS 1984 Elev. 2342 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2959.1 14-Jun-2023

  2960   

Antennaria parvifolia

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Antennaria rosea Greene.  Rosy Pussytoes.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 180 m. southwest of the ranch house, 15.9 km. northwest of the GNIS location of Golden. 39.7936N, 105.3548W. WGS 1984 Elev. 2342 m. Lowest northeast-facing hill slope, edge of forest.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2960. 14-Jun-2023

  2961   

Antennaria parvifolia

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Antennaria parvifolia Nutt.  Small-Leaf Pussytoes.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 200 m. southwest of the ranch house, 15.8 km. northwest of the GNIS location of Golden. 39.7934N, 105.3541W. WGS 1984 Elev. 2337 m. Rose, but tall, large involucre and corolla. Lowest northeast-facing hill slope, edge of forest.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2961. 14-Jun-2023


Full Size ImageColl. No. 2962, Salix boothii.
Full Size ImageCatkin of Coll. No. 2962, Salix boothii.  
2962   

Salix famelica.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix boothii Dorn.  Booth's Willow.

Guy Gulch, Jefferson County, Colorado. On the bank of the creek in Guy Gulch, 155 m. south of the Centennial Ranch house, 2.56 km. south of Mt. Tom, 12.1 km. (geodesic) northwest of the GNIS location of Golden. 39.7934N, 105.3538W. WGS 1984 Elev. 2335 m. Multi-stem, catkin bracts dark brown.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2962. 14-Jun-2023

Coll. No. 2962, 14 June 2023, characters observed: Shrub, tall, multi-stem; Height, > 1 m.; Stems, not pruinose, current year's near black, prior year's grayish to yellowish; Leaves, alternate, petiole, 4-5 mm., without glands, blade, 42 mm. × 19 mm. wide, oblong to ovate, surfaces glabrate (hairs velutinous (short, soft, curvy)), margin serrulate; Catkins, pistillate, leafy pedunculate, 28 mm. × 10 mm. wide, elongate, densely flowered; Floral bracts, 1.5 mm., black, villous; Stipe, 0.5 mm.; Capsules, 4.5-6.5 mm., slender, pubescent on proximal margins; Style, 1.7-1.8 mm.

  2963   

Fragaria, probably F. vesca.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Fragaria vesca L.  Woodland Strawberry.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 220 m. southwest of the ranch house, 15.8 km. northwest of the GNIS location of Golden. 39.7933N, 105.354W. WGS 1984 Elev. 2335 m. Stream terrace in open shade under Douglas fir.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2963. 14-Jun-2023

  2964   

Viola canadensis

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Violaceae

Viola canadensis L.  Canadian White Violet.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 237 m. south of the ranch house, 15.7 km. northwest of the GNIS location of Golden. 39.7932N, 105.3537W. WGS 1984 Elev. 2337 m. In the shade on a stream terrace.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2964. 14-Jun-2023

  2965   

Barbarea, most likely B. vulgaris.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Barbarea vulgaris R. Br.  Garden Yellowrocket.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 326 m. south southeast of the ranch house, 15.6 km. northwest of the GNIS location of Golden. 39.7927N, 105.3529W. WGS 1984 Elev. 2333 m. Partly sunny location amid hillside brush and floodplain trees.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2965. 14-Jun-2023

  2966   

Cypress??

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cupressaceae

Juniperus scopulorum Sarg.  Rocky Mountain Juniper.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 326 m. south southeast of the ranch house, 15.6 km. northwest of the GNIS location of Golden. 39.7927N, 105.3528W. WGS 1984 Elev. 2333 m. Small tree, 2.5-3 m.; leaf barely overlaps that immediately above, margin entire, surface gland long; no fruit. Edge of flood plain, between hillslope brush and flood plain trees.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2966. 14-Jun-2023

  2967   

Delphnium nuttallianum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Delphinium nuttallianum Pritz.  Twolobe Larkspur.

Guy Gulch, Jefferson County, Colorado. Southwest side of the creek and County Road 70, 503 m. south southeast of the ranch house, just north of a small gulch, 15.5 km. northwest of the GNIS location of Golden. 39.7917N, 105.3519W. WGS 1984 Elev. 2329 m. Perennial from a cluster of tuber-like roots; sepals blue-purple; follicles flaring outward. Open northeast-facing slope.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2967. 14-Jun-2023

  2968   

Micranthes rhomboidea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Saxifragaceae

Micranthes rhomboidea (Greene) Small.  Diamondleaf Saxifrage.

Guy Gulch, Jefferson County, Colorado. Mouth of a small gulch tributary to Guy Gulch, southwest side of the creek and County Road 70, 530 m. south southeast of the ranch house, 15.5 km. northwest of the GNIS location of Golden. 39.7915N, 105.352W. WGS 1984 Elev. 2333 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2968. 14-Jun-2023


Full Size ImageColl. No. 2968.1, Clematis grosseserrata.
Full Size ImageColl. No. 2968.1, Clematis grosseserrata.
Full Size ImageColl. No. 2968.1, Clematis grosseserrata.  
2968.1   

Clematis grosseserrata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Clematis grosseserrata (Rydb.) Ackerfield.  Western Blue Virgin's-Bower.

Guy Gulch, Jefferson County, Colorado. Mouth of a small gulch tributary to Guy Gulch, southwest side of the creek and County Road 70, 530 m. south southeast of the ranch house, 15.5 km. northwest of the GNIS location of Golden. 39.7915N, 105.352W. WGS 1984 Elev. 2333 m. Shaded floor of the drainage, with Micranthes rhomboidea.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2968.1 14-Jun-2023

Other articles:
• Golden Checklist Flora:  Physaria vitulifera;  

2969   

Physaria vitulifera.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Physaria vitulifera Rydb. Bull. Torrey Bot. Club 28: 278. 1901.  Roundtip Twinpod.

Guy Gulch, Jefferson County, Colorado. Mouth of a small gulch tributary to Guy Gulch, southwest side of the creek and County Road 70, 530 m. south southeast of the ranch house, 15.5 km. northwest of the GNIS location of Golden. 39.7914N, 105.352W. WGS 1984 Elev. 2334 m. Few plants here; collection split in half. Open southeast-facing rocky slope

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2969. 14-Jun-2023


Full Size ImageColl. No. 2970, Astragalus parryi  
2970   

Astragalus, probably A. parryi.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus parryi A. Gray.  Parry's Milkvetch.

Guy Gulch, Jefferson County, Colorado. Steep slope above Guy Gulch, southwest side of the creek and County Road 70, 490 m. south southeast of the ranch house, 15.5 km. northwest of the GNIS location of Golden. 39.7917N, 105.3522W. WGS 1984 Elev. 2339 m. Developing fruit is sickle-shaped, villous. Steep slope, sunny, southeast aspect.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vikery 2970. 14-Jun-2023

Coll. No. 2970, 14 June 2023, characters observed: Perennial herb, to 20 cm., caulescent, hairs basifixed; Stem, distal spreading hairs; Stipules, free; Leaf, compound, leaflets, 19#; Calyx, not inflated in fruit; Flowers, white; Fruit,, in a loose raceme, stipe, 0.3 mm., 14 mm. × 5.5 mm. wide, arcuate, obcompressed ?? (not seen in dried specimen), white villous.


Full Size ImageColl. No. 2971, Oenothera cespitosa ssp. macroglottis  
2971   

Oenothera cespitosa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Oenothera cespitosa Nutt. ssp. macroglottis (Rydb.) W.L. Wagner.  Tufted Evening Primrose.

Guy Gulch, Jefferson County, Colorado. Steep slope above Guy Gulch, southwest side of the creek and County Road 70, 406 m. south southeast of the ranch house, 15.6 km. (planar) northwest of the GNIS location of Golden. 39.7922N, 105.3527W. WGS 1984 Elev. 2346 m. Flowers white, fading pink. Steep rocky hillside, below a rock outcrop and an Acer glabrum

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2971. 14-Jun-2023


Full Size ImageColl. No. 2972, Anaphalis margaritacea
Full Size ImageColl. No. 2972, Anaphalis margaritacea.  
2972   

Anaphalis margaritacea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Anaphalis margaritacea (L.) Bentham & Hooker.  Western Pearly Everlasting.

Guy Gulch, Jefferson County, Colorado. Steep slope above Guy Gulch, southwest side of the creek and County Road 70, 380 m. south southeast of the ranch house, 15.6 km. (planar) northwest of the GNIS location of Golden. 39.7923N, 105.353W. WGS 1984 Elev. 2356 m. Very steep slope among Douglas fir.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2972. 14-Jun-2023

 

Locations: DeLong Park (City of Golden).  

 

Thursday, 15 June 2023

DeLong Park

  2973   

Melilotus officinalis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Melilotus officinalis (L.) Lam.  Yellow Sweet Clover.

DeLong Park (City of Golden), Jefferson County, Colorado. New Golden city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. 39.7488N, 105.208W. WGS 1984 Elev. 1787 m. Naturalized in the park, which was fallow for many years and now is being weeded by volunteers to keep the park pesticide-free.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2973. 15-Jun-2022

  2974   

Dactylis glomerata.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Dactylis glomerata L.  Orchard Grass.

DeLong Park (City of Golden), Jefferson County, Colorado. New Golden city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. 39.749N, 105.208W. WGS 1984 Elev. 1787 m. Naturalized in the park, which was fallow for many years and now is being weeded by volunteers to keep the park pesticide-free.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2974. 15-Jun-2023

  2975   

Trifolium repens.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Trifolium repens L.  White Clover.

DeLong Park (City of Golden), Jefferson County, Colorado. New Golden city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. 39.7489N, 105.208W. WGS 1984 Elev. 1779 m. Creeping and rooting at nodes; leaves glabrous; heads pedunculate; many flowers per head. Naturalized in the park, which was fallow for many years and now is being weeded by volunteers to keep the park pesticide-free.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2975. 15-Jun-2023

   

Northward extension of Eagle Ridge. This parcel is known as Tract A of Eagle Ridge Center Filing 2 Replat B.

  2977   

Sphaeralcea coccinea.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Malvaceae

Sphaeralcea coccinea (Nutt.) Rydb.  Cowboy's Delight.

Eagle Ridge, Tract A, Jefferson County, Colorado. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 50 m. northwest of the Kinney Run Trail, 2.38 km. (geodesic) south of the GNIS location of Golden 39.7344N, 105.2163W. WGS 1984 Elev. 1800 m. Petal color flaming orange (#ED6332), fading blue-purple. Common in this field, drier patch dominated by Artemisia ludoviciana, stiff clay soil.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2977. 19-Jun-2023

  2978   

Crepis occidentalis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Crepis occidentalis Nutt.  Largeflower Hawksbeard.

Eagle Ridge, Tract A, Jefferson County, Colorado. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 50 m. northwest of the Kinney Run Trail, 2.38 km. (geodesic) south of the GNIS location of Golden 39.7344N, 105.2163W. WGS 1984 Elev. 1802 m. Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil. Subsp. costata if infraspecific names are to be applied.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2978. 19-Jun-2023

  2979   

Nassella viridula.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Nassella viridula (Trin.) Barkworth.  Green Needlegrass.

Eagle Ridge, Tract A, Jefferson County, Colorado. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 70 m. northwest of the Kinney Run Trail, 2.37 km. (geodesic) south of the GNIS location of Golden 39.7345N, 105.2164W. WGS 1984 Elev. 1806 m. In bloom. Common in this field, drier patch dominated by Artemisia ludoviciana, stiff clay soil.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2979. 19-Jun-2023

  2980   

Linum lewisii.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Linaceae

Linum lewisii Pursh.  Prairie Blue Flax.

Eagle Ridge, Tract A, Jefferson County, Colorado. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 70 m. northwest of the Kinney Run Trail, 2.37 km. (geodesic) south of the GNIS location of Golden. 39.7345N, 105.2164W. WGS 1984 Elev. 1802 m. Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2980. 19-Jun-2023


Full Size ImageColl. No. 2981, Linaria dalmatica.  
2981   

Linaria dalmatica.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Plantaginaceae

Linaria dalmatica (L.) Mill.  Dalmatian ToadFlax.

Eagle Ridge, Tract A, Jefferson County, Colorado. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 100 m. northwest of the Kinney Run Trail, 2.35 km. (geodesic) south of the GNIS location of Golden. 39.7346N, 105.2168W. WGS 1984 Elev. 1803 m. Perennial. Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil. Colorado Noxious Weed List B. EDDMapS No. 11644454. iNaturalist Observation 192499979.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2981. 19-Jun-2023


Full Size ImageColl. No. 2982, Linum pratense.  
2982   

Linum pratense.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Linaceae

Linum pratense (Norton) Small.  Meadow Flax.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 175 m. northwest of the Kinney Run Trail, 2.31 km. south of the GNIS location of Golden. 39.7349N, 105.2175W. WGS 1984 Elev. 1809 M. Annual, small blue flowers, short styles. Shoulder of ridge, southeast aspect. Also collected here, Astragalus drummondii and Delphinium carolinium ssp. virescens.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2982. 19-Jun-2023

  2983   

Delphinium carolinum var. virescens.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Ranunculaceae

Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks.  Plains Larkspur.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 175 m. northwest of the Kinney Run Trail, 2.31 km. south of the GNIS location of Golden. 39.7349N, 105.2175W. WGS 1984 Elev. 1810 m. Shoulder of ridge, southeast aspect, with Coll. No. 2982, Linum pratense

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2983. 19-Jun-2023

  2984   

Astragalus drummondii

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Astragalus drummondii Dougl. ex Hook.  Drummond's Milkvetch.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 175 m. northwest of the Kinney Run Trail, 2.31 km. south of the GNIS location of Golden. 39.7349N, 105.2175W. WGS 1984 Elev. 1807 m. Perennial, large upright Astragalus with white flowers. Common, shoulder of ridge, southeast aspect, with Linum pratense and Delphinium carolinianum ssp. virescens.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2984. 19-Jun-2023

  2985   

Hesperostipa comata.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Hesperostipa comata (Trin. & Rupr.) Barkworth.  Needle and Thread.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 190 m. northwest of the Kinney Run Trail, 2.30 km. south of the GNIS location of Golden. 39.735N, 105.2176W. WGS 1984 Elev. 1810 m. In bloom. Near top of small ridge, with Alyssum simplex, Pediomelum tenuiflorum, Linaria dalmatica, Agropyron cristatum, Bromus japonicus, and Nassella viridula.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2985. 19-Jun-2023

  2986   

Agropyron cristatum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Agropyron cristatum (L.) Gaertn.  Crested Wheat Grass.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 215 m. northwest of the Kinney Run Trail, 2.28 km. south of the GNIS location of Golden. 39.7351N, 105.2179W. WGS 1984 Elev. 1817 m. Few in bloom. Top of ridge in disturbed mixed-grass prairie.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2986. 19-Jun-2023

  2987   

Koeleria macrantha.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Koeleria macrantha (Ledeb.) Schult.  Prairie Junegrass.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 232 m. northwest of the Kinney Run Trail, 2.27 km. south of the GNIS location of Golden. 39.7352N, 105.2181W. WGS 1984 Elev. 1816 m. In bloom. Just on the north side of a small ridge. Mixed grass prairie, highest Great Plains at base of Rocky Mountain Front Range.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2987. 19-Jun-2023


Full Size ImageColl. No. 2988, Calochortus gunnisonii.  
2988   

Calochortus gunnisonii.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Liliaceae

Calochortus gunnisonii S. Watson.  Gunnison's Mariposa Lily.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 247 m. northwest of the Kinney Run Trail, 2.26 km. south of the GNIS location of Golden. 39.7353N, 105.2182W. WGS 1984 Elev. 1813 m. First flowers open. Two-thirds of way up the north-facing slope, with Astragalus drummondii, Sphaeralcea coccinea, Hesperostipa comata, and Nassella viridula. Mixed grass prairie, highest Great Plains at base of Rocky Mountain Front Range.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2988. 19-Jun-2023


Full Size ImageColl. No. 2989, Astragalus agrestis.  
2989   

Astragalus agrestis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Astragalus agrestis Douglas ex G. Don.  Purple Milkvetch.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, or lower, parcel of the survey field, within Golden city limits, 247 m. northwest of the Kinney Run Trail, 2.24 km. south of the GNIS location of Golden. 39.7355N, 105.2186W. WGS 1984 Elev. 1806 m. Flowers and developing fruit. Mixed grass prairie, highest Great Plains at base of Rocky Mountain Front Range. Lower north-facing slope, with Achillea millefolium, Tragopogon dubius, Sphaeralcea coccinea, Linaria dalmatica, Bromus inermis, and Koeleria macrantha,

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2989. 19-Jun-2023

  2990   

Apocynum floribundum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Apocynaceae

Apocynum floribundum Greene.  Dogbane.

Deadman Gulch, Jefferson County, Colorado. Between the 6th Avenue Trail and the creek of Deadman Gulch, 2.24 km. (geodesic) south of GNIS location of Golden 39.7359N, 105.215W. WGS 1984 Elev. 1787 m. Leaves spreading to ascending; corolla >2× calyx, lobes spreading to reflexed. Highly disturbed habitat between trails.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2990. 19-Jun-2023

  2991   

Rhamnus cathartica.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Rhamnaceae

Rhamnus cathartica L.  European Buckthorn.

Deadman Gulch, Jefferson County, Colorado. Also locally called “Kinney Run,” in a triangular city parcel along the projection of Illinois Street below US Highway 6. 39.7373N, 105.2151W. WGS 1984 Elev. 1785 m. One plant with 22 stems, rooted in bank of creek. With Salix exigua and Prunus virginiana. Same plant as Coll. No. 2925. EDDMapS Record Id. 11613828.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 2991. 19-Jun-2023

 

Locations: Ranson/Edwards Homestead Open Space Park.  

 

Thursday, 22 Jun 2023

Ranson/Edwards with Cathy Hanson-Stamp.

 

Locations: Guy Gulch.
Full Size ImageMeadow above Guy Gulch.
Full Size ImageMeadow above Guy Gulch.  

 

Friday, 23 June 2023

Guy Gulch. John Vickery was also out there, but we never saw each other.

  2992   

Erigeron flagellaris.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Erigeron flagellaris A. Gray.  Trailing Fleabane.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope just a few meters west of the line shack, 1.12 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8129N, 105.3637W. WGS 1984 Elev. 2607 m. Open grassy slope with Rumex acetosella, Cerastium arvense, Microsteris gracilis, and Bouteloua gracilis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2992. 23-Jun-2023

  2993   

Cerastium arvense var. strictum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caryophyllaceae

Cerastium arvense L. ssp. strictum Gaudin.  Field Chickweed.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope just a few meters north of the line shack, 1.12 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8129N, 105.3636W. WGS 1984 Elev. 2609 m. Also collected here: Achillea millefolium, Artemisia frigida, Physaria montana, Microsteris gracilis, and Boutelous gracilis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2993. 23-Jun-2023

  2994   

Microsteris gracilis

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polemoniaceae

Microsteris gracilis (Douglas ex Hook.) Greene.  Slender Phlox.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope just a few meters north of the line shack, 1.12 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8129N, 105.3636W. WGS 1984 Elev. 2609 m. Also collected here: Achillea millefolium, Artemisia frigida, Physaria montana, Cerastium arvense, and Boutelous gracilis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2994. 23-Jun-2023

  2995   

Harbouria trachypleura.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Apiaceae

Harbouria trachypleura (A. Gray) J.M. Coult. & Rose.  Whiskbroom Parsley.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 30 m. northwest of the line shack, 1.13 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8131N, 105.3638W. WGS 1984 Elev. 2612 m. Rocky hillslope with Juniperus communis var. depressa, Pinus ponderosa, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2995. 23-Jun-2023

  2996   

Rubus deliciosus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Rubus deliciosus Torr.  Delicious raspberry.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 28 m. northwest of the line shack, 1.14 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8129N, 105.3639W. WGS 1984 Elev. 2618 m. Open slope, southeast aspect, with Juniperus communis var. depressa, Pinus ponderosa, and Potentilla fissa.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2996. 23-Jun-2023

  2997   

Juniperus communis depressa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cupressaceae

Juniperus communis L. var. depressa Pursh.  Common Juniper.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 32 m. west northwest of the line shack, 1.14 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8129N, 105.3639W. WGS 1984 Elev. 2616 m. Large mature shrub, 3-4 m. diameter, though degenerate in the middle. Open southwest-facing slope between Pinus ponderosa with Penstemon secundiflorus, Potentilla fissa, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2997. 23-Jun-2023

  2998   

Potentilla fissa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Potentilla fissa Nutt. ex Torr. & A.Gray.  Bigflower Cinquefoil.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 40 m. west northwest of the line shack, 1.15 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.813N, 105.364W. WGS 1984 Elev. 2617 m. Open southwest-facing slope between Pinus ponderosa with Juniperus communis var. depressa, Penstemon secundiflorus, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2998. 23-Jun-2023

  2999   

Penstemon secundiflorus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Penstemon secundiflorus Benth.  Sidebells Penstemon.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 40 m. west northwest of the line shack, 1.15 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.813N, 105.364W. WGS 1984 Elev. 2618 m. Open southwest-facing slope between Pinus ponderosa with Juniperus communis var. depressa, Potentilla fissa, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 2999. 23-Jun-2023


Full Size ImageColl. No. 3000, Maianthemum stellatum.  
3000   

Maianthemum stellatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ruscaceae

Maianthemum stellatum (L.) Link.  Starry False Lily of the Valley.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on the southwest-facing slope 80 m. south of the line shack, 1.16 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8121N, 105.3637W. WGS 1984 Elev. 2595 m. Under Douglas fir on upper bank of creek with Mertensia lanceolata.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3000. 23-Jun-2023

  3001   

Senecio integerrimus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Senecio integerrimus Nutt.  Columbia Ragwort.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, in a flat area 143 m. southwest of the line shack, 1.24 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8119N, 105.3646W. WGS 1984 Elev. 2588 m. Open ground amid lodgepole pines.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3001. 23-Jun-2023

  3002   

Mertensia lanceolata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Mertensia lanceolata (Pursh) DC.  Prairie Bluebells.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, on a stream bank 80 m. south of the line shack, 1.16 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8121N, 105.3637W. WGS 1984 Elev. 2590 m. Shaded shoulder of stream bank with Pinus ponderosa. Also collected here: Maianthemum stellatum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3002. 23-Jun-2023

  3003   

Ribes cereum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Grossulariaceae

Ribes cereum Douglas.  Wax Currant.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, in a pile of rocks 25 m. southwest of the line shack, 1.14 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8127N, 105.3638W. WGS 1984 Elev. 2605 m. Perhaps an artificial pile of rocks, with Geranium caespitosum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3003. 23-Jun-2023


Full Size ImageColl. No. 3004, Geranium caespitosum.  
3004   

Geranium caespitosum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Geraniaceae

Geranium caespitosum James.  Pineywoods Geranium.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, in a pile of rocks 25 m. southwest of the line shack, 1.14 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8127N, 105.3638W. WGS 1984 Elev. 2605 m. Perhaps an artificial pile of rocks, possibly containing a spring, with Ribes cereum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3004. 23-Jun-2023

  3005   

Arabis pycnocarpa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Arabis pycnocarpa M. Hopkins.  Cream Flower Rockcress.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 28 m. south of the line shack, 1.13 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8126N, 105.3636W. WGS 1984 Elev. 2605 m. Open grasses.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3005. 23-Jun-2023

  3006   

Stellaria longipes.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caryophyllaceae

Stellaria longipes Goldie ssp. longipes.  Longstalk Starwort.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 35 m. northeast of the line shack, 1.09 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8131N, 105.3634W. WGS 1984 Elev. 2612 m. In still water beside creek, with Portulaca oleracea and Noccaea fendleri.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3006. 23-Jun-2023

     
     
  3007   

Carex inops var. heliophila.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cyperaceae

Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins.  Sun Sedge.

Guy Gulch, Jefferson County, Colorado. Meadow north of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 20 m. southwest of the line shack, 1.13 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8127N, 105.3637W. WGS 1984 Elev. 2604 m. Growing on a small ranch road berm.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3007. 23-Jun-2023

 

Locations: DeLong Park (City of Golden).  

 

Thursday, 29 June 2023

DeLong Park, Bio-Blitz and Weeding


Full Size ImageColl. No. 3008, Securigera varia.  
3008   

Securigera varia.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Securigera varia (L.) Lassen.  Purple Crownvetch.

DeLong Park (City of Golden), Jefferson County, Colorado. On the bank of the Welch Ditch near the south bridge and stairs down to 24th Street, 1.39 km. southeast of the GNIS location of Golden. 39.7479N, 105.2083W. WGS 1984 Elev. 1768 m. With Bromus inermis and Fraxinus pensylvanica. There is also a dense infestation in the watercourse parallel to 23rd Street. EDDMapS Record ID 11652866.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3008. 29-Jun-2023


Full Size ImageColl. No. 3009, Lathyrus latifolius.  
3009   

Lathyrus latifolia.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Fabaceae

Lathyrus latifolius L.  Perennial Pea Vine.

DeLong Park (City of Golden), Jefferson County, Colorado. In the natural area, up on the slope above Welch Ditch and sidewalk, aligned with extension of 24th Street, 1.39 km. southeast of the GNIS location of Golden. 39.748N, 105.2081W. WGS 1984 Elev. 1770 m. Flower color varies from pink to vivid magenta. Full sun on southwest slope. EDDSMapS Record Id 11652895.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3009. 29-Jun-2023

  3010   

Nassella viridula.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Nassella viridula (Trin.) Barkworth.  Green Needlegrass.

DeLong Park (City of Golden), Jefferson County, Colorado. In the natural area, up on the slope above Welch Ditch and sidewalk, aligned with extension of 24th Street, 1.39 km. southeast of the GNIS location of Golden. 39.7479N, 105.2081W. WGS 1984 Elev. 1770 m. In bloom. Full sun on southwest slope. May have been planted during park construction.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3010. 29-Jun-2023

  3011   

Helianthus pumilis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Helianthus pumilus Nutt.  Little Sunflower.

DeLong Park (City of Golden), Jefferson County, Colorado. In the natural area of a new city park (construction in 2021 and 2022), up on the slope above Welch Ditch and sidewalk, aligned with extension of 24th Street, 1.39 km. southeast of the GNIS location of Golden. 39.7479N, 105.208W. WGS 1984 Elev. 1772 m. In bloom. Likely to be native here, other likely natives seen: Opuntia macrorhiza, Comandra umbellata ssp. pallida and Carex inops ssp. heliophila.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3011. 29-Jun-2023

  3011.1   

Agropyron cristatum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Agropyron cristatum (L.) Gaertn.  Crested Wheat Grass.

DeLong Park (City of Golden), Jefferson County, Colorado. In the northeast corner of a new city park (construction in 2021 and 2022), along 23rd Street near its intersection with Table Drive, 1.34 km. southeast of the GNIS location of Golden. 39.749N, 105.208W. WGS 1984 Elev. 1776 m. Unclear whether presence here predates park construction or was brought in with soil amendment. This area of the park also seriously infested with Lepidium draba.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3011.1 29-Jun-2023

  3012   

Elymus canadensis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Elymus canadensis L.  Canadian Wildrye.

DeLong Park (City of Golden), Jefferson County, Colorado. Growing on the banks of the watercourse in north-central natural area of the park (construction in 2021 and 2022), along 23rd Street near its intersection with Vernon Drive, 1.33 km. southeast of the GNIS location of Golden. 39.7489N, 105.2083W. WGS 1984 Elev. 1774 m. Not listed in the original seeding mixture. Unclear whether presence here predates park construction, was brought in with soil amendment, or was a contaminant in original mixture used in seeding the park. Probably variety canadensis if infraspecific names are to be applied.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3012. 29-Jun-2023

  3013   

Secale cereale.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Secale cereale L.  Cereal Rye.

DeLong Park (City of Golden), Jefferson County, Colorado. New city park (construction in 2021 and 2022), along the eastern border at watercourse, 1.36 km. southeast of the GNIS location of Golden. 39.7487N, 105.2079W. WGS 1984 Elev. 1772 m. Not native. Not listed in the original seeding mixture. Unclear whether presence here predates park construction, was brought in with soil amendment, or was a contaminant in original mixture used in seeding the park.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3013. 29-Jun-2023


Full Size ImageColl. No. 3014, Lolium multiflorum.  
3014   

Lolium perenne.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Lolium multiflorum Lam.  Annual Ryegrass.

DeLong Park (City of Golden), Jefferson County, Colorado. New city park (construction in 2021 and 2022), just south of bridge along 23rd Street near its intersection with Vernon Drive. 1.32 km. southeast of the GNIS location of Golden. 39.7488N, 105.2083W. WGS 1984 Elev. 1762 m. Blades rolled in bud, spikelets edge-wise, florets 8-12, lemma awns 0-6 mm. This area was re-seeded with native grasses, but this common turf grass probably pre-dates park construction. Characters intermediate with L. perenne; perhaps a hybrid.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3014. 29-Jun-2023


Full Size ImageColl. No. 3015, Fraxinus pennsylvanica.  
3015   

Fraxinus pensylvanica.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Oleaceae

Fraxinus pennsylvanica Marshall.  Green Ash.

DeLong Park (City of Golden), Jefferson County, Colorado. New city park (construction in 2021 and 2022), rooted in the bank of the Welch Ditch along the southwest boundary. 1.35 km. southeast of the GNIS location of Golden. 39.7483N, 105.2084W. WGS 1984 Elev. 1763 m. Medium-sized trees; probably pre-date the park. Various Colorado authors disagree about nativity of this tree to Colorado. Earliest collection in 1891 at State Agricultural College, Ft. Collins.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3015. 29-Jun-2023

  3016   

Bromus japonicus.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Bromus japonicus Thunb.  Japanese Cheat Grass.

DeLong Park (City of Golden), Jefferson County, Colorado. New city park (construction in 2021 and 2022), northeast of shelter, in "native" beds, 1.33 km. southeast of the GNIS location of Golden. 39.7487N, 105.2083W. WGS 1984 Elev. 1765 m.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3016. 29-Jun-2023


Full Size ImageColl. No. 3017, Lonicera tatarica.  
3017   

Lonicera, likely L. tatarica.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Caprifoliaceae

Lonicera tatarica L.  Tatarian Honeysuckle.

DeLong Park (City of Golden), Jefferson County, Colorado. New city park (construction in 2021 and 2022), southeastern "natural" area of park, 1.39 km. southeast of the GNIS location of Golden. 39.7483N, 105.208W. WGS 1984 Elev. 1765 m. Fruit is twin berries growing on last years' twigs With Prunus virginiana. Widely distributed in Colorado; likely naturalized and no longer just a garden escapee. EDDMapS Record ID 11653694.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3017. 29-Jun-2023

 

Locations: Guy Gulch.  

 

Monday, 3 July 2023

Douglas Mountain Study Area with John Vickery


Full Size ImageColl. No. 3018, Juncus arcticus var. balticus.  
3018   

Juncus arcticus var. balticus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Juncaceae

Juncus arcticus (Willd.) Trautv. var. balticus (Willdenow) Trautvetter.  Arctic Rush.

Guy Gulch, Jefferson County, Colorado. Abandoned stream terrace, southwest side of County Road 70, 1.13 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.801N, 105.3646W. WGS 1984 Elev. 2407 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3018. 3-Jul-2023

Subject to label mixup with #3145, per Jan Wingate, 4/23/2024.


Full Size ImageColl. No. 3019, Poa pratensis.  
3019   

Poa sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Poa pratensis L.  Kentucky Bluegrass.

Guy Gulch, Jefferson County, Colorado. Sunny spot on a slope just above an abandoned stream terrace, southwest side of County Road 70, 1.13 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3645W. WGS 1987 Elev. 2407 m. Perennial, rhizomatous, cobwebby, lemma and palea glabrous on lateral veins and intercostal regions.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3019. 3-Jul-2023

  3020   

Salix, pistillate catkins.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Salicaceae

Salix bebbiana Sarg.  Bebb Willow.

Guy Gulch, Jefferson County, Colorado. Bank of the creek in Guy Gulch, southwest side of County Road 70, 1.13 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3647W. WGS 1984 Elev. 2409 m. Tall, multi-trunk shrub, not pruinose, pistillate catkins, floral bracts tan, capsules pubescent.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3020. 3-Jul-2023

Other articles:
• Field Notes:  Coll. No. 3112, 18 Jul 2023;  Coll. No. 3139, 20 Jul 2023;
Full Size ImageColl. No. 3021, Vaccinium sp.  

3021   

Vaccinium sp. See also Coll. Nos. 3112 and 3139.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ericaceae

Vaccinium L.  Blueberry.

Guy Gulch, Jefferson County, Colorado. Abandoned stream channel of the creek in Guy Gulch, southwest side of County Road 70, 1.13 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3646W. WGS 1984 Elev. 2409 m. In a thicket under Betula occidentalis, Ribes cereum, and Rubus deliciosus. Compare to Coll. No. 3112 and 3139, Vaccinium sp. from Lake County.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3021. 3-Jul-2023

Coll. No. 3021, 3 July 2023, characters observed: Perennial, low-growing; Twigs of current season, terete, reddish-brown, glabrous; Leaves, oblanceolate to oblong, 34 mm. × 14 mm. wide, smaller leaves broadest above middle, margins serrulate entire length.

Harrington (1964 2nd ed.): Vaccinium caespitosum. Weber & Wittmann (2012): V. myrtillus. Ackerfield (2022): V. membranaceum.

  3022   

Ranunculus sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Ranunculus glaberrimus Hook. var. ellipticus (Greene) Greene.  Sagebrush Buttercup.

Guy Gulch, Jefferson County, Colorado. Edge of forest near the creek in Guy Gulch, southwest side of County Road 70, 1.14 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8007N, 105.3649W. WGS 1984 Elev. 2412 m. Also collected here: Pseudocymopterus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3022. 3-Jul-2023


Full Size ImageColl. No. 3023, Pseudocymopterus montanus.  
3023   

Pseudocymopterus montanus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Apiaceae

Pseudocymopterus montanus (A. Gray) J. M. Coult. & Rose.  Alpine False Springparsley.

Guy Gulch, Jefferson County, Colorado. Edge of forest near the creek in Guy Gulch, southwest side of County Road 70, 1.14 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8007N, 105.3649W. WGS 1984 Elev. 2412 m. Grasses surrounded by Douglas fir forest, Mertensia lanceolata, Aquilegia coerulea, Fragaria vesca, and Viola canadensis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3023. 3-Jul-2023


Full Size ImageColl. No. 3024, Clematis grosseserrata.  
3024   

Clematis in fruit.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Clematis grosseserrata (Rydb.) Ackerfield.  Western Blue Virgin's-Bower.

Guy Gulch, Jefferson County, Colorado. Edge of Douglas fir forest near the creek in Guy Gulch, southwest side of County Road 70, 1.15 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3649W. WGS 1984 Elev. 2417 m. In fruit.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3024. 3-Jul-2023

  3025   

Symphoricarpos rotundifolius.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caprifoliaceae

Symphoricarpos rotundifolius A. Gray.  Roundleaf Snowberry.

Guy Gulch, Jefferson County, Colorado. Terrace above creek in Guy Gulch, southwest side of County Road 70, 1.17 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.801N, 105.3651W. WGS 1984 Elev. 2415 m. Corolla tube 11 mm. + lobes 1 mm. spreading, white to pale yellow, glabrous within, anthers on evident filaments. Open grassland with a few Douglas fir and aspens.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3025. 3-Jul-2023

  3026   

Castilleja integra.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Orobanchaceae

Castilleja integra A. Gray.  Wholeleaf Indian Paintbrush.

Guy Gulch, Jefferson County, Colorado. Terrace above creek in Guy Gulch, southwest side of County Road 70, 1.19 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8012N, 105.3652W. WGS 1984 Elev. 2418 m. Grassy opening between Douglas fir forest and aspens and willows along the creek, with Achillea millefolium, Artemisia frigida, and Koeleria macrantha.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3026. 3-Jul-2023


Full Size ImageColl. No. 3027, Rosa acicularis ssp. sayi.  
3027   

Rosa woodsii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Rosa acicularis Lindl. ssp. sayi (Schwein.) W. H. Lewis.  Say's Acicular Rose.

Guy Gulch, Jefferson County, Colorado. Terrace above creek in Guy Gulch, southwest side of County Road 70, 1.18 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.801N, 105.3652W. WGS 1984 Elev. 2416 m. Prickles on new growth, leaflets #7. Around the base of a Douglas fir and Rocky Mountain maple.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3027. 3-Jul-2023

  3028   

Lithospermum multiflorum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Lithospermum multiflorum Torrey ex A. Gray.  Many Flowered Stoneseed.

Guy Gulch, Jefferson County, Colorado. Terrace above creek in Guy Gulch, southwest side of County Road 70, 1.20 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8011N, 105.3654W. WGS 1984 Elev. 2416 m. Open edge of Douglas fir forest. Limited material, flowers just beginning to open.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3028. 3-Jul-2023


Full Size ImageColl. No. 3028.1, Anemone multifida.  
3028.1   

Anemone multifida.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Anemone multifida Poir.  Pacific Anemone.

Guy Gulch, Jefferson County, Colorado. Small delta at mouth of gulch tributary to Guy Gulch, southwest side of County Road 70, 1.20 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8011N, 105.3654W. WGS 1984 Elev. 2416 m. Flowers reddish-purple. Open edge of Douglas fir forest.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3028.1 3-Jul-2023


Full Size ImageColl. No. 3029, Arnica cordifolia.  
3029   

Arnica cordifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Arnica cordifolia Hook.  Heart-Leaf Leopardbane.

Guy Gulch, Jefferson County, Colorado. Just inside the mouth of a small gulch tributary to Guy Gulch, southwest side of County Road 70, 1.19 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3655W. WGS 1984 Elev. 2417 m. More seen further up the gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3029. 3-Jul-2023

  3030   

Aquilegia coerulea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Aquilegia coerulea E. James.  Colorado Blue Columbine.

Guy Gulch, Jefferson County, Colorado. Just inside the mouth of a small gulch tributary to Guy Gulch, southwest side of County Road 70, 1.19 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8009N, 105.3655W. WGS 1984 Elev. 2423 m. More seen farther up the gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3030. 3-Jul-2023


Full Size ImageColl. No. 3031, Draba streptocarpa.  
3031   

Draba with twisted fruit.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Draba streptocarpa A. Gray.  Twisted-fruit Whitlow-grass.

Guy Gulch, Jefferson County, Colorado. Deep shade of a small gulch tributary to Guy Gulch, 105 m. southwest of County Road 70, 1.19 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8008N, 105.3656W. WGS 1984 Elev. 2423 m. Fruit flat and twisted.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3031. 3-Jul-2023

Coll. No. 3031, 3 Jul 2023, characters observed: Perennial (short-lived?), to 40 cm., hairs various combinations of simple and forked, but not dolabriform or stellate; Leaves, basal, withered, cauline, simple, sessile, lanceolate, 30 mm. ×7 mm. wide, diminishing gradually, margin entire; Inflorescence, raceme, ebracteate; Sepals, #4, 1 row, 2.4 mm. × 1 mm. wide, oblong, color, green, margin scarious, abaxially hairy; Petals, 3.5 mm. × 1.4 mm. wide, obovate, entire, yellow; Anthers, 0.4 mm., ovate; Style, 0.7 mm.; Stigma, capitate; Fruit, pedicels, 12 mm., ascending, body, 10.5 mm. × 2.2 mm. wide (4.77:1), pubescent (maybe slightly more pubescent along margin but not “glabrous with simple hairs along the margin”).

  3032   

Thalictrum fendleri.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Thalictrum fendleri Engelm. ex A. Gray.  Fendler's Meadow Rue.

Guy Gulch, Jefferson County, Colorado. Deep shade of a small gulch tributary to Guy Gulch, 125 m. southwest of County Road 70, 1.19 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8007N, 105.3657W. WGS 1984 Elev. 2424 m. Staminate plants in bloom.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3032. 3-Jul-2023

  3032.1   

Draba with twisted fruit?

Literature Cited:
- Rose, Jeffrey P., 2021.
- Rose, Jeffrey P., Cassio A. P. Toledo, Emily Moriarty Lemmon, Alan R, Lemmon, and Kenneth J. Sytsma, 2021.
Full Size ImageColl. No. 3034, Polemonium foliosissimum.  

3034   

Polemonium foliosissimum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polemoniaceae

Polemonium foliosissimum A. Gray.  Towering Jacob's Ladder.

Guy Gulch, Jefferson County, Colorado. Deep shade of a small gulch tributary to Guy Gulch, 150 m. southwest of County Road 70, 1.21 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8005N, 105.366W. WGS 1984 Elev. 2439 m. Limited material for collection.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3034. 3-Jul-2023

  3034.1   

Hackelia floribunda.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Hackelia floribunda (Lehm.) I. M. Johnst.  Many-Flowered Stickseed.

Guy Gulch, Jefferson County, Colorado. Deep shade of a small gulch tributary to Guy Gulch, 145 m. southwest of County Road 70, 1.20 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8005N, 105.3659W. WGS 1984 Elev. 2438 m. Also collected here: Polemonium foliosissimum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3034.1 3-Jul-2023

  3035   

Physocarpus montanus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Physocarpus monogynus (Torr.) J.M. Coult.  Mountain Ninebark.

Guy Gulch, Jefferson County, Colorado. On a steep slope between two smaller gulches, deep shade of a small gulch tributary to Guy Gulch, 165 m. southwest of County Road 70, 1.21 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8004N, 105.3662W. WGS 1984 Elev. 2444 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3035. 3-Jul-2023

  3035.1   

Clematis grosseserrata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Clematis grosseserrata (Rydb.) Ackerfield.  Western Blue Virgin's-Bower.

Guy Gulch, Jefferson County, Colorado. On a steep slope between two smaller gulches, deep shade of a small gulch tributary to Guy Gulch, 165 m. southwest of County Road 70, 1.21 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8004N, 105.3662W. WGS 1984 Elev. 2444 m. In Fruit; was in flower on 14 Jun 2023.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3035.1 3-Jul-2023


Full Size ImageColl. No. 3036, unknown grass.  
3036   

Difficult grass.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae
Undetermined.  Grass Family.

Guy Gulch, Jefferson County, Colorado. On a steep slope between two smaller gulches, deep shade of a small gulch tributary to Guy Gulch, 170 m. southwest of County Road 70, 1.21 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8004N, 105.3662W. WGS 1984 Elev. 2447 m. steep slope, almost a wall

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3036. 3-Jul-2023

Coll. No. 3036, 3 July 2023, characters observed: Perennial grass, to 60 cm., not evidently rhizomatous; Leaves, sheath, 100 mm., open, glabrous, ligule, membranous, < 1 mm., blade 120 mm. × 1.5 mm. wide, flat, glabrous; Inflorescence, 1 per culm, panicle, 150 mm. × 5 mm. wide; Rachis, not extended; Disarticulation, between florets, florets falling separately; Glumes, lower, 2 mm., veins, 3, upper, 2.5 mm., <lowest floret, veins, 3, scabrous, awns, 0; Florets, 2 per spikelet; Callus, slightly hairy, not cobwebby; Lemma, 2.3 mm., broad, green, keel and margin with proximal short wavy hairs, scabrous distally, veins, 3(5), awns, 0; Palea, 1.7 mm., < lemma, membranous, glabrous.


Full Size ImageColl. No. 3037, Castilleja miniata.  
3037   

Castilleja miniata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Orobanchaceae

Castilleja miniata Hook.  Giant Red Indian Paintbrush.

Guy Gulch, Jefferson County, Colorado. Small ridge between two smaller gulches, deep shade of a gulch tributary to Guy Gulch, 260 m. southwest of County Road 70, 1.60 km. northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.8003N, 105.3665W. WGS 1984 Elev. 2461 m. Stems pilose, not tomentose, lanceolate leaves and bracts with no lobes.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3037. 3-Jul-2023

  3038   

Erysimum capitatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Erysimum capitatum (Hook.) Greene.  Sanddune Wallflower.

Guy Gulch, Jefferson County, Colorado. Small ridge between two smaller gulches, deep shade of a gulch tributary to Guy Gulch, 265 m. southwest of County Road 70, 1.23 km. (geodesic) northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.7997N, 105.3668W. WGS 1984 Elev. 2473 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3038. 3-Jul-2023

  3039   

Jamesia americana

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Hydrangeaceae

Jamesia americana Torr. & A. Gray.  Fivepetal Cliffbush.

Guy Gulch, Jefferson County, Colorado. Small ridge between two smaller gulches, shade of a gulch tributary to Guy Gulch, 280 m. southwest of County Road 70, 1.23 km. (geodesic) northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.7996N, 105.367W. WGS 1984 Elev. 2469 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3039. 3-Jul-2023


Full Size ImageColl. No. 3040, Packera werneriifolia.  
3040   

Packera werneriifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Packera werneriifolia (A. Gray) W. A. Weber & . Lve.  Hoary Groundsel.

Guy Gulch, Jefferson County, Colorado. Open shade on a forested hillside above Guy Gulch, 290 m. southwest of County Road 70, 1.15 km. (geodesic) northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.799N, 105.3663W. WGS 1984 Elev. 2488 m. Gentle north-facing slope in Douglas fir forest with little to no middlestory.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3040. 3-Jul-2023


Full Size ImageColl. No. 3041, Calamagrostis purpurascens.  
3041   

Grass.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Calamagrostis purpurascens R. Br.  Purple Reedgrass.

Guy Gulch, Jefferson County, Colorado. Beside well-established game trail in open shade on a forested hillside above Guy Gulch, 290 m. southwest of County Road 70, 1.15 km. (geodesic) northwest of Centennial Ranch house, 13.4 km. (geodesic) northwest of the GNIS location of Golden. 39.7991N, 105.3656W. WGS 1984 Elev. 2500 m. Gentle north-facing slope in Douglas fir forest with little to no middlestory.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3041. 3-Jul-2023

Coll. No. 3041, 3 July 2023, characters observed: Perennial grass, to 40 cm., no rhizomes seen; Leaves, sheath, 12 cm., open, ligule, membranous, 4 mm., auricles, 0, blade, 15 cm. × 3 mm. wide, flat, scabrous, also adaxially densely and minutely hairy between the ribs; Inflorescence, <leaves, 1 per culm, panicle, 110 mm. × 12 mm. wide; Rachis, not extended; Spikelets, many, 8 mm. × 1 mm. wide, similar; Glumes, lower, 6 mm., veins, 1, upper, 5 mm., > lowest floret, veins, 1 (3?), keeled, awns, 0; Florets, 1* per spikelet; *Rachilla, extended beyond upper floret as though there could be another floret up there, hairy; Callus, short straight white hairs; Lemma, 4 mm., < glumes, green, veins, 5, glabrous, tip, toothed, awns, 1, 7 mm., bent, attached, near base of lemma; Palea, 4 mm., < lemma, membranous; Achene, 1.7 mm., green.


Full Size ImageColl. No. 3042, Boechera spatifolia.  
3042   

Mustard, compare to Boechera spatifola.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Boechera spatifolia (Rydb.) Windham & Al-Shebaz.  Spoonleaf Rockcress.

Guy Gulch, Jefferson County, Colorado. Open forest slope above Guy Gulch, 130 m. southwest of County Road 70, 1.09 km. (geodesic) northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8N, 105.3649W. WGS 1984 Elev. 2442 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3042. 3-Jul-2023

Coll. No. 3042, 3 July 2023, characters observed: Perennial herb, 45 cm. to 50 cm., hairs, simple, occasional forked hairs at base of stem; Leaves, basal, simple, petiole, 15 mm., blade 18 mm. × 5.5 mm. wide, margin, toothed, ciliate, tip, acute, cauline, 18 mm. × 1.3 mm. wide, auriculate, 1+mm., linear, entire; Inflorescence, elongating; Sepals, 1 row; Petals, 3 mm. × 0.7 mm. wide, color, white; Fruit, pedicels, 10 mm., spreading, body, 45 mm., × 1.3 mm. wide, descending or pendant; Ovules, biseriate.


Full Size ImageColl. No. 3043, Castilleja linariifolia.  
3043   

Castilleja linarifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Orobanchaceae

Castilleja linariifolia Benth.  Wyoming Indian Paintbrush.

Guy Gulch, Jefferson County, Colorado. Top of very steep slope above creek, 90 m. southwest of County Road 70, 1.09 km. (geodesic) northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8001N, 105.3644W. WGS 1984 Elev. 2429 m. Very narrow leaves.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3043. 3-Jul-2023

  3043.1   

Anaphalis? Or Pseudognaphalium?

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Anaphalis margaritacea (L.) Bentham & Hooker.  Western Pearly Everlasting.

Guy Gulch, Jefferson County, Colorado. Top of very steep slope above creek, 90 m. southwest of County Road 70, 1.09 km. (geodesic) northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.8001N, 105.3644W. WGS 1984 Elev. 2429 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3043.1 3-Jul-2023

  3044   

Oenothera coronopifolia

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Oenothera coronopifolia Torr. & A. Gray.  Crownleaf Evening Primrose. Hierba de San Juan..

Guy Gulch, Jefferson County, Colorado. Roadside, Golden Gate Canyon Road (County Road 70), 1.10 km. (geodesic) northwest of Centennial Ranch house, 13.25 km. (geodesic) northwest of the GNIS location of Golden. 39.8011N, 105.364W. WGS 1984 Elev. 2423 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3044. 3-Jul-2023

 

Locations: Golden.  

 

Tuesday, 4 July 2023

Yard work


Full Size ImageColl. No. 3045, Amaranthus albus.  
3045   

Amaranthus albus

 

Locations: DeLong Park (City of Golden).  

 

Thursday, 6 July 2023

DeLong Park

 

Other articles:
• Lubahn Trail (north loop):   at spur;   at a wet spot;   along trail;   at switch back;  below plaque;
• Lubahn Trail (South Loop):  Castle Rock;
• Olivine Trail:   at Lubahn Trl;

Locations: Castle Rock. South Table Mountain.
Full Size ImageEricameria nauseosa var. nauseosa beside the Lubahn Trail.  

 

Friday, 7 July 2023

South Table Mountain, via Lubahn Trail and Olivine Trail.

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Exposed roots of Ericameria nauseosa var. nauseosa beside the Lubahn Trail.
Full Size Image
Physaria vitulifera beside the Lubahn Trail on South Table Mountain.
Full Size Image
Townsendia grandiflora along the Lubahn Trail.
Full Size Image
Parietaria pensylvanica on a wet slope under Rhus trilobata
Full Size Image
Where they closed the trail.
Full Size Image
Schweich Hill from Castle Rock on South Table Mountain.
Full Size Image
Magpie Gulch (left) and Nightbird Gulch (right) seen from Castle Rock on South Table Mountain.
Full Size Image
Survey Field and Lookout Mountain from Castle Rock on South Table Mountain.

Other articles:
• Lubahn Spur:  below the outcrop;
Full Size ImageColl. No. 3046, Parietaria pensylvanica on a wet slope under Symphoricarpos occidentalis.
Full Size ImageColl. No. 3046, Parietaria pensylvanica.  

3046   

Parietaria pensylvanica.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Urticaceae

Parietaria pensylvanica Willd.  Pennsylvania Pellitory.

South Table Mountain, Jefferson County, Colorado. Along the re-routed Lubahn Trail, below the basalt rim of South Table Mountain, 1.15 km. east southeast of the GNIS location of Golden. 39.7538N, 105.2079W. WGS 1984 Elev. 1861 m. Wet slope above Lubahn Trail under Rhus trilobata, Symphoricarpos sp., and Cercocarpus montanus. Spring 2023 was recognized as “wetter than average.”

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3046. 7-Jul-2023

Other articles:
• Olivine Trail:   near Old Quarry Trl;
Full Size ImageColl. No. 3047, Dysphania botrys.  

3047   

Dysphania botrys.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Chenopodiaceae

Dysphania botrys (L.) Mosyakin & Clemants.  Jerusalem Oak Goosefoot.

South Table Mountain, Jefferson County, Colorado. Beside the Olivine Trail, near its intersection with the Old Quarry Trail, 1.28 km. east southeast of the GNIS location of Golden. 39.7532N, 105.2065W. WGS 1984 Elev. 1891 m. Open, sandy ground, disturbed area beside trail.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3047. 7-Jul-2023


Full Size ImageColl. No. 3048, Sporobolus cryptandrus.  
3048   

Sporobolus cryptandrus.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Sporobolus cryptandrus (Torr.) A. Gray.  Sand Drop-seed.

South Table Mountain, Jefferson County, Colorado. West side of the mesa, beside the Olivine Trail, near its intersection with the Old Quarry Trail, 1.30 km. east southeast of the GNIS location of Golden. 39.753N, 105.2062W. WGS 1984 Elev. 1890 m. Disturbed trail-side, dry and sunny, Cercocarpus montanus the dominant shrub.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3048. 7-Jul-2023

 

Locations: Kelsey Campground. Morrison Creek.
Full Size ImageView to the southeast from Little Scraggy Trail to Thunder Butte and Pikes Peak.
Full Size ImageHorse trail markings at the head of Morrison Creek.  

 

Monday, 10 July 2023

Kelsey Campground to Morrison Creek.

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Another view of Thunder Butte and Pikes Peak; this one after the hail storm.
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Solny (short for Solnyshka) knowsn what a press full of new collections on the dryer is good for.

Full Size ImageColl. No. 3049, Dracocephalum parviflorum.
Full Size ImageColl. No. 3049, Dracocephalum parviflorum.  
3049   

Annual Lamiaceae Dracocephalum parviflorum.

Plants of Colorado
Lamiaceae

Dracocephalum parviflorum Nutt.  American Dragonhead.

Morrison Creek, Jefferson County, Colorado. Small swale tributary to Morrison Creek, near crossing of Little Scraggy Trail, 1.08 km. southwest of Little Scraggy Peak, 50.3 km. south of Golden. 39.3078N, 105.2841W. WGS 1984 Elev. 2365 m. annual Lodgepole pine, Douglas fir, and aspen with Aquilegia coerulea and Acer glabrum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3049. 10-Jul-2023

Literature Cited:
- Nuttall, Thomas, 1818.  

 

Described by Nuttall (1818) from collections mane at Fort Mandan. The type is at PH.

5. * [Dracocephalum] parviflorum. Flowers, verticillate, subcapitate; leaves ovate-lanceolate, deeply serrate, and petiolate, bractes foliaceous, ovate, ciliate, and serrate, serratures conspicuously mucronate; upper segment of the calix much larger than the rest; flower scarcely longer than the calix. Hab. Around Fort Mandan, on the Missouri; on the borders of thickets. Obs. Biennial; nearly smooth, stem, and petioe a little pubescent; flowers almost imbricated in a leafy capitulum, very small, and nearly white; calix awned, arid and membranaceous, semiquinquefid; bractes divaricately awned; upper lip of the corolla emarginate, arched; lower 3-lobed central lobe subcrenate. Flowering time, July. Apparently allied to D. Moldavica, but the leaves are entirely destitute of punctures: scarcely a congener with D. virginianum, and closely allied to Melissa.
Principally a Siberian genus.
  3050   

Pedicularis canadensis.

Plants of Colorado
Orobanchaceae

Pedicularis canadensis L.  Canadian Lousewort.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.14 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden. 39.3075N, 105.2847W. WGS 1984 Elev. 2369 m. Being worked over by a large bumble bee. Also collected here: Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3050. 10-Jul-2023

  3051   

Oryzopsis asperifolia.

Plants of Colorado
Poaceae

Oryzopsis asperifolia Michx.  White-Grain Mountain Rice-Grass.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.14 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden. 39.3075N, 105.2847W. WGS 1984 Elev. 2374 m. Damp forest floor; also collected here; Osmorhiza depauperata, Pyrola chlorantha, and Pedicularis canadensis; shattering as fast as I can collect it.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3051. 10-Jul-2023

  3052   

Bryophyte?


Full Size ImageColl. No. 3053, Rubus pubescens.  
3053   

Rosaceae?

Plants of Colorado
Rosaceae

Rubus pubescens Raf.  Dwarf Red Blackberry.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.15 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3074N, 105.2846W. WGS 1984 Elev. 2528 m. Forested, shaded, wet bank of creek; also collected nearby: Osmorhiza depauperata, Pyrola chlorantha, Pedicularia canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3053. 10-Jul-2023

Coll. No. 3053, 10 July 2023, characters observed: Creeping perennial, to 25 cm., without stolons; Stem, unarmed, villous, glabrate proximally; Stipules, 8 mm., leaf-like, lobed; Leaves, alternate, compound, ternate, leaflets, ovate, 68 mm. × 33 mm. wide, serrate above middle, margins villous, tips, acuminate on smaller leaflets, otherwise acute, adaxial, glabrous, abaxial, soft straight hairs on veins; Inflorescence, 2-4 flowers; Petiole, 12 mm., stipitate glandular; Flowers, actinomorphic, hypanthium present; Sepals, 4 mm. × 1.5 mm. wide, joined at base, without bracteoles; Petals, 5 mm. × 2 mm. wide, spoon-shaped, free to hypanthium, white, fading pink; Stamens, many.


Full Size ImageColl. No. 3054, Pyrola chlorantha
Full Size ImageColl. No. 3054, Pyrola chlorantha.  
3054   

Pyrola chlorantha.

Plants of Colorado
Ericaceae

Pyrola chlorantha Sw.  Green-Flowered Wintergreen.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.16 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3072N, 105.2847W. WGS 1984 Elev. 2550 m. Many plants here, 2 in bloom, 1 in bud. Forested, shaded, wet bank of creek; also collected nearby: Osmorhiza depauperata, Rubus pubescens, Pedicularis canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3054. 10-Jul-2023


Full Size ImageColl. No. 3055, Osmorhiza depauperata.  
3055   

Osmorhiza depauperata.

Plants of Colorado
Apiaceae

Osmorhiza depauperata Phil.  Blunt-Fruit Sweet-Cicely.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.16 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3073N, 105.2847W. WGS 1984 Elev. 2555 m. In fruit, no flowers seen. Forested, shaded, wet bank of creek; also collected nearby: Pyrola chlorantha, Rubus pubescens, Pedicularis canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3055. 10-Jul-2023


Full Size ImageColl. No. 3056, Fragaria vesca.  
3056   

Fragaria, likely F. vesca.

Plants of Colorado
Rosaceae

Fragaria vesca L.  Woodland Strawberry.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.20 km. southwest of Little Scraggy Peak, 50.1 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3068N, 105.2847W. WGS 1984 Elev. 2570 m. Forested, shaded, wet bank of creek; also collected nearby: Osmorhiza depauperata, Pyrola chlorantha, Rubus pubescens, Pedicularis canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3056. 10-Jul-2023


Full Size ImageColl. No. 3057, Rosa woodsii  
3057   

Rosa acicularis ssp. sayi.

Plants of Colorado
Rosaceae

Rosa acicularis Lindl. ssp. sayi (Schwein.) W. H. Lewis.  Say's Acicular Rose.

Morrison Creek, Jefferson County, Colorado. Steep slope above Morrison Creek, near crossing of Little Scraggy Trail, 1.18 km. southwest of Little Scraggy Peak, 50.1 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3068N, 105.2845W. WGS 1984 Elev. 2581 m. Prickles on new growth, seven leaflets per leaf, bracts very long, petals short, color intense. Deep shade of forest; also collected nearby: Osmorhiza depauperata, Pyrola chlorantha, Fragaria vesca, Rubus pubescens, Pedicularis canadensis, and Oryzopsis asperifolia. Limited material for collection.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3057. 10-Jul-2023

  3058   

Physocarpus monogynus.

Plants of Colorado
Rosaceae

Physocarpus monogynus (Torr.) J.M. Coult.  Mountain Ninebark.

Morrison Creek, Jefferson County, Colorado. Bouldery slope above Morrison Creek, near crossing of Little Scraggy Trail, 1.13 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3076N, 105.2847W. WGS 1984 Elev. 2580 m. Lodgepole pine, Douglas fir, aspen, with Juniperus comunis var. depressa and Acer glabrum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3058. 10-Jul-2023

  3059   

Geum macrophylum.

Plants of Colorado
Rosaceae

Geum macrophyllum Willd.  Large-leaf Avens.

Morrison Creek, Jefferson County, Colorado. Shaded streamside along Morrison Creek near where joined by horse trail (probably an old road), 848 m. southwest of Little Scraggy Peak, 49.8 km. south of the GNIS location of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.31N, 105.283W. WGS 1984 Elev. 2541 m. Also collected here: Erigeron eximus, Hackelia floribunda, Geranium richardsonii, and Aconitum columbianum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3059. 10-Jul-2023

  3060   

Brassicaceae

Plants of Colorado
Brassicaceae

Arabis pycnocarpa M. Hopkins var. pycnocarpa.  Cream Flower Rockcress.

Morrison Creek, Jefferson County, Colorado. Open forest near the divide between Morrison Creek and Sixmile Creek, 966 m. southwest of Little Scraggy Peak, 49.8 km. south of the GNIS location of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3076N, 105.2818W. WGS 1984 Elev. 2564 m. Also collected here: Pseudocymopterus montanus. On the horse trail (old road?) just north of the Little Scraggy Trail.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3060. 10-Jul-2023

Coll. No. 3060, 10 Jul 2023, characters observed: Perennial herb, terrestrial, 25 cm. to 40 cm. tall, hairs, mostly simple, rarely forked; Stem, erect, leafy, proximal, hairy, distal, glabrous; Leaves, basal, withering, petiole, 4 mm., blade, 14 mm. × 7 mm. wide, oblanceolate, margin, several small teeth, tip, rounded, cauline, sessile, 13 mm. × 3 mm. wide, oblong, margin, few small teeth; Inflorescence, raceme, 40 mm. × 10 mm. wide, not bracted, not one-sided; Flowers, radial; Sepals, #4, rows, #1, 2.5 mm. × 0.8 mm. wide, ovate, color, green, glabrous; Petals, 4 mm. × 1.2 mm. wide, obovate, margin, entire, color, white, lavender tint when dry; Stamens, #6, 3 & 3.5 mm.; Filaments, plain; Anthers, 0.5&nbp;mm., ovate; Stigma, capitate; Fruit, pedicels, 7 mm., ascending, body, 10.5 mm., ascending; Ovules, biseriate.

  3061   

Pseudocymopteris montanus.

Plants of Colorado
Brassicaceae

Arabis pycnocarpa M. Hopkins var. pycnocarpa.  Cream Flower Rockcress.

Morrison Creek, Jefferson County, Colorado. Open forest near the divide between Morrison Creek and Sixmile Creek, 966 m. southwest of Little Scraggy Peak, 49.8 km. south of the GNIS location of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3076N, 105.2818W. WGS 1984 Elev. 2564 m. Also collected here: Pseudocymopterus montanus. On the horse trail (old road?) just north of the Little Scraggy Trail.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3060. 10-Jul-2023

  3062   

Oenothera coronopifolia.

Plants of Colorado
Onagraceae

Oenothera coronopifolia Torr. & A. Gray.  Crownleaf Evening Primrose. Hierba de San Juan..

Morrison Creek, Jefferson County, Colorado. Along the Little Scraggy Trail, in Gunbarrel Creek drainage, 950 m. south of Little Scraggy Peak, 49.2 km. south of the GNIS location of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3062N, 105.2767W. WGS 1984 Elev. 2577 m. Alluvial soil below rock outcrops, with Ceanothus fendleri and Acer glabrum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3062. 10-Jul-2023

  3063   

Holodiscus dumosus.

Plants of Colorado
Rosaceae

Holodiscus discolor (Pursh) Maxim. Var. microphyllus (Rydb.) Jeps.  Ocean Spray.

Morrison Creek, Jefferson County, Colorado. Along the Little Scraggy Trail, in Gunbarrel Creek drainage, 950 m. south of Little Scraggy Peak, 50.1 km. south of the GNIS location of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3063N, 105.2768W. WGS 1984 Elev. 2581 m. Hillside with rock outcrops and boulders; also here: Jamesia americana and Acer glabrum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3063. 10-Jul-2023


Full Size ImageHeuchera hallii observed beside the Little Scraggy Trail.  
 

Heuchera hallii observed.

Literature Cited:
- Gray, Asa, 1863.  

 

Enumerated and described by Asa Gray (1863) ...

... H. Hallii. ‡ Rocks, on mountains of medium elevation. ...

Heuchera Hallii (sp. nov.) : hirsutula; thyrso racemiformi suhlaxo 16-30-floro: bracteis pedicellos vix superantibus ; florihus albidis (nunc roseo tinctis?): calyce lato-campanulato 5-lobo, lobis, lato-ovatis; petalis spathulatis obtusis exsertis: staminibus stylisque inclusis. Scapes usually a span high. Flowers about three lines long, but the calyx twice the breadth of that of H. bracteata, and very different in shape. Pedicels, when fully developed, sometimes nearly as long as the flower. Leaves as in the preceding species [H. bracteata], considerably variable.

 

Other articles:
• Golden Gate Canyon Road:   at Centennial Ranch;  39000;

Locations: Guy Gulch.
Full Size ImageView across Guy Gulch from the high point of the day.  

 

Wednesday, 12 July 2023

Guy Gulch

Full Size Image
Where we went Wednesday, 12 July 2023.
  3064   

Astragalus, likely A. flexuosus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus flexuosus G. Don.  Flexible Milkvetch.

Guy Gulch, Jefferson County, Colorado. Open flat, possible former parking area across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7946N, 105.3545W. WGS 1984 Elev. 2238 M. Spreading horizontally to 1 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3064. 12-Jul-2023

  3065   

Silene, maybe S. latifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caryophyllaceae

Silene latifolia Poir.  Bladder Campion.

Guy Gulch, Jefferson County, Colorado. Around the base of a concrete structure, across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7946N, 105.3547W. WGS 1984 Elev. 2343 m. Basal leaves 0, flowers white, flowers imperfect. Most have been eaten.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3065. 12-Jul-2023


Full Size ImageColl. No. 3066, Dracocephalum parviflorum.  
3066   

Dracocephalum parviflorum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Lamiaceae

Dracocephalum parviflorum Nutt.  American Dragonhead.

Guy Gulch, Jefferson County, Colorado. Around the base of a concrete structure, across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7946N, 105.3547W. WGS 1984 Elev. 2346 m. Side of concrete structure, also collected here: Ambrosia psilostachya, Silene latifolia, and Astragalus flexuosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3066. 12-Jul-2023


Full Size ImageColl. No. 3067, Ambrosia tomentosa.  
3067   

Ambrosia psilostachya.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Ambrosia tomentosa Nutt.  Skeleton-Leaf Bursage.

Guy Gulch, Jefferson County, Colorado. Just southeast of a concrete structure, across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7945N, 105.3546W. WGS 1984 Elev. 2345 m. Also collected nearby: Astragalus flexuosus, Silene latifolia, and Dracocephalum parviflorum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3067. 12-Jul-2023

  3068   

Scrophularia lanceolata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Scrophulariaceae

Scrophularia lanceolata Pursh.  Lanceleaf Figwort.

Guy Gulch, Jefferson County, Colorado. Around the base of a willow in a former meander of the creek, 115 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7947N, 105.3554W. WGS 1984 Elev. 2349 m. One in bloom, four-five more in bud, with Hackelia floribunda.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3068. 12-Jul-2023

  3069   

Geum macrophyllum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Geum macrophyllum Willd.  Large-leaf Avens.

Guy Gulch, Jefferson County, Colorado. Around the base of a willow in a former meander of the creek, 130 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7947N, 105.3554W. WGS 1984 Elev. 2347 m. Limited material, some eaten; with Hackellia floribunda

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3069. 12-Jul-2023

  3070   

Hackellia floribunda.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Hackelia floribunda (Lehm.) I. M. Johnst.  Many-Flowered Stickseed.

Guy Gulch, Jefferson County, Colorado. Around the base of a willow in a former meander of the creek, 130 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7947N, 105.3553W. WGS 1984 Elev. 2347 m. Large perennial herb, more than 1 m. tall. Around willow with Ribes inerme, Geum macrophyllum, and Scrophularia lanceolata.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3070. 12-Jul-2023


Full Size ImageColl. No. 3071, Ribes inerme.  
3071   

Ribes inerme.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Grossulariaceae

Ribes inerme Rydb.  White Stem Gooseberry.

Guy Gulch, Jefferson County, Colorado. Around the base of a willow in a former meander of the creek, 135 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7947N, 105.3554W. WGS 1984 Elev. 2348 m. At the base of a willow in an abandoned meander of the creek, with Hackellia floribunda, Geum macrophyllum, and Scrophularia lanceolata.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3071. 12-Jul-2023


Full Size ImageColl. No. 3072, Oenothera biennis.  
3072   

Oenothera biennis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Oenothera biennis L.  King's-Cureall.

Guy Gulch, Jefferson County, Colorado. Around the base of a willow in a former meander of the creek, 125 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7948N, 105.3553W. WGS 1984 Elev. 2348 m. Collection is halved infloresence plus basal leaves; not much material to work with. Placed in O. biennis on the strength of long hairs and short glandular hairs on the ovary, but see Ackerfield (2022) note regarding presence of O. biennis in Colorado.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3072. 12-Jul-2023


Full Size ImageColl. No. 3073, Montia chamissoi.  
3073   

Montia chamissoi.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Montiaceae

Montia chamissoi (Spreng.) Greene.  Toad Lily.

Guy Gulch, Jefferson County, Colorado. In still water beside the creek, 115 m. west across County Road 70 from the Centennial Ranch house, 2.43 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7948N, 105.3552W. WGS 1984 Elev. 2348 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3073. 12-Jul-2023


Full Size ImageColl. No. 3074, Phalaris arundinacea.  
3074   

Calamovilfa longifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Phalaris arundinacea L.  Reed Canarygrass.

Guy Gulch, Jefferson County, Colorado. In still water beside the creek, 94 m. west across County Road 70 from the Centennial Ranch house, 2.42 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7948N, 105.3551W. WGS 1984 Elev. 2346 m. Also nearby in still water: Montia chamissoi.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3074. 12-Jul-2023

Coll. No. 3074, 12 Jul 2023, characters observed: Perennial grass, to 150 cm., still water beside creek, rhizomatous; Leaves, sheath, open, 140 mm., ligule, membraneous, 5 mm., blade, 160 mm. ×8 mm. wide, flat; Inflorescence, panicle; Spikelets, 5-6 mm.; Florets, 1, though subtended on opposite sides by 2 small hairy bits of tissue that could be sterile florets; Glumes, lower, 5 mm., upper, 6 mm., wingless, keeled, barely scabrous; Lemma, 4 mm., awns absent; Palea, 3 mm.

  3075   

Rosa, probably R. woodsii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Rosa acicularis Lindl. ssp. sayi (Schwein.) W. H. Lewis.  Say's Acicular Rose.

Guy Gulch, Jefferson County, Colorado. Terrace below hill slope, 150 m. west northwest across County Road 70 from the Centennial Ranch house, 2.39 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7951N, 105.3557W. WGS 1984 Elev. 2350 m. Prickles on new growth, leaflets 7, flowers intense rose. Old tree blow-down with Acer glabrum and Symphoricarpos occidentalis and a colony of rhubarb nearby.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3075. 12-Jul-2023

  3077   

Thalictrum fendleri, pistillate plants.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Thalictrum fendleri Engelm. ex A. Gray.  Fendler's Meadow Rue.

Guy Gulch, Jefferson County, Colorado. Shaded streamside, 185 m. west northwest across County Road 70 from the Centennial Ranch house, 2.35 km. south of Mount Tom, 12.4 km. west northwest of the GNIS location of Golden. 39.7955N, 105.3559W. WGS 1984 Elev. 2353 m. Pistillate plants.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery and Cindy Trujillo 3077. 12-Jul-2023

  3078   

Eriogonum umbellatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Eriogonum umbellatum Torr. var. umbellatum.  Sulphur-Flower Buckwheat.

Guy Gulch, Jefferson County, Colorado. Sunny mouth of a small gulch tributary to Guy Gulch, 130 m. southwest across County Road 70 from the Centennial Ranch house, 2.52 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7939N, 105.355W. WGS 1984 Elev. 2346 m. There are several inflorescences in this collection that have a single branch and several that have an extra whorl of bracts as in variety ramulosum, a variety local to the Front Range.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3078. 12-Jul-2023


Full Size ImageColl. No. 3079, Piptatherum micranthum.  
3079   

Grass, maybe Piptatherum or Piptatheriopsis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Piptatherum micranthum (Trin. & Rupr.) Barkworth.  Littleseed Ricegrass.

Guy Gulch, Jefferson County, Colorado. Dry former roadside in the shaded mouth of a small gulch tributary to Guy Gulch, 190 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7936N, 105.3556W. WGS 1984 Elev. 2353 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3079. 12-Jul-2023

Coll. No. 3079, 12 July 2023, characters observed: Perennial grass, to 50 cm., caespitose; Leaves, sheath, 75 mm., open, ligule, membranous, 1.5 mm., blade, 250 mm. × 3.2 mm. wide, some flat, some involute; Inflorescence, 1 per culm, <leaves, panicle, contracted [more so than would be expected], 120 mm. × 5 mm. wide; Rachis, not extended; Compression, not remarkable; Glumes, lower, 3.2 mm., veins, 5(7?), upper, 3.5 mm. >lowest floret, veins, 5(7?), membranous to transparent distally, awns, 0; Florets, 1 per spikelet; Lemma, 2.2 mm., <glumes, coriaceous, rolled, sparsely pubescent, veins, 3, awns, #1, 9 mm., wavy, deciduous; Palea, 2 mm., <lemma, coriaceous.


Full Size ImageColl. No. 3080, Elymus lanceolatus Agropyron cristatum.
Full Size ImageSpikelet of Coll. No. 3080, Elymus lanceolatus Agropyron cristatum.  
3080   

Some kind of wheatgrass.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Elymus lanceolatus (Scribn. & J. G. Sm.) Gould.  Thickspike Wheatgrass.

Guy Gulch, Jefferson County, Colorado. Dry former roadside in the shaded mouth of a small gulch tributary to Guy Gulch, 192 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7935N, 105.3556W. WGS 1984 Elev. 2353 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3080. 12-Jul-2023

Coll. No. 3080, 12 July 2023, characters observed: Perennial grass, to 75 cm., not obviously rhizomatous; Leaves, sheath, 93 mm., open, ligule, membranous, auricles, minimal, 0.5 mm., lanceolate, blade, 160 mm. × 3.2 mm. wide, flat, adaxial pilose; Inflorescence, 2-sided spike, 45 mm. × 7 mm. wide; Spikelets, many, 12 mm. × 12 mm. wide, overlapping about ⅔ or 8 mm., similar, borne singly, glumes and florets spreading; Glumes, lower, 5 mm. + awn, 3 mm. veins, 5, upper, 5 mm. × 1.5 mm. wide + awn 3.5 mm., <lowest floret, veins, 5, keeled; Florets, 5 per spikelet; Lemma, 7.5 mm., >glumes, keeled, barely scabrous on veins, veins, 5, tip, bifid, awns, #1, 2.8 mm., straight; Palea, 5.8 mm., <lemma, membranous, keel, ciliate, tip, bifid; Anthers, 3 mm.

Agropyron cristatum, Jan Wingate, 4/23/2024.


Full Size ImageColl. No. 3081, Circaea alpina.  
3081   

Circaea alpina “Enchanter's Nightshade”

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Circaea alpina L.  Small Enchanter's Nightshade.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 205 m. southwest across County Road 70 from the Centennial Ranch house, 2.52 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7936N, 105.3558W. WGS 1984 Elev. 2367 m. Large patch in deep shade on floor and south slope of gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3081. 12-Jul-2023


Full Size ImageColl. No. 3082, Ranunculus abortivus.  
3082   

Ranunculus sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ranunculaceae

Ranunculus abortivus L.  Littleleaf Buttercup.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 192 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7935N, 105.3559W. WGS 1984 Elev. 2364 m. Floor of gulch, also collected here: Circaea alpina, Prosartes trachycarpa, and Piptatherum micranthum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery and Cindy Trujillo 3082. 12-Jul-2023

Coll. No. 3082, 12 July 2023, characters observed: Annual or perennial herb, semi-aquatic, 30 cm., not creeping or rooting at nodes; Leaves, dimorphic, basal, simple, margin, crenate, cauline, compound or very deeply lobed; Sepals, glabrous; Petals, yellow, claw 0.5 mm. + blade 1.5 mm. = 2.0 mm.; Achenes, 1.3 mm. beak very small, curved, globose, glabrous.


Full Size ImageColl. No. 3083, Prosartes trachycarpa.  
3083   

Prosartes trachycarpa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Liliaceae

Prosartes trachycarpa S. Watson.  Roughfruit Fairybells.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 192 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7935N, 105.3559W. WGS 1984 Elev. 2368 m. Immature fruit. On the bank of the gulch, also collected here: Circaea alpina, Ranunculus abortivus, and Piptatherum micranthum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery and Cindy Trujillo 3083. 12-Jul-2023


Full Size ImageColl. No. 3084, Pyrola asarifolia.
Full Size ImageColl. No. 3084, Pyrola asarifolia.
Full Size ImageColl. No. 3084, Pyrola asarifolia.  
3084   

Pyrola asarifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ericaceae

Pyrola asarifolia Michx.  Liverleaf Wintergreen.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 227 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7937N, 105.3563W. WGS 1984 Elev. 2375 m. Many rosettes, 1 plant in bud, 1 plant in bloom. On the floor of the gulch, also collected here: Circaea alpina, Ranunculus abortivus, Prosartes trachycarpa, and Piptatherum micranthum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3084. 12-Jul-2023


Full Size ImageColl. No. 3085, Galium triflorum.  
3085   

Galium, probably G. triflorum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rubiaceae

Galium triflorum Michx.  Fragrant Bedstraw.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 260 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.4 km. west northwest of the GNIS location of Golden. 39.7937N, 105.3568W. WGS 1984 Elev. 2376 m. Very deep forest duff on a small shaded divide between two drainages.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3085. 12-Jul-2023


Full Size ImageColl. No. 3086, Veronica americana.  
3086   

Veronica sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Veronica americana (Raf.) Benth.  American Speedwell.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 282 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.4 km. west northwest of the GNIS location of Golden. 39.7938N, 105.3571W. WGS 1984 Elev. 2382 m. Leaves petiolate, inflorescence of axillary racemes. Growing in water at bottom of gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery and Cindy Trujillo 3086. 12-Jul-2023

  3087   

Collomia linearis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polemoniaceae

Collomia linearis Nutt.  Tiny Trumpet.

Guy Gulch, Jefferson County, Colorado. Small forested gulch tributary to Guy Gulch, 345 m. southwest across County Road 70 from the Centennial Ranch house, 2.56 km. south of Mount Tom, 12.5 km. west northwest of the GNIS location of Golden. 39.794N, 105.358W. WGS 1984 Elev. 2397 m. Beside sunny dry trail on the north side of the gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo and John Vickery 3087. 12-Jul-2023


Full Size ImageColl. No. 3087, Gayophytum ramosissimum.  
3088   

Gayophytum, maybe G. ramosissimum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Gayophytum ramosissimum Torr. & A. Gray.  Pinyon Groundsmoke.

Guy Gulch, Jefferson County, Colorado. Mouth of a small forested gulch tributary to Guy Gulch, 140 m. southwest across County Road 70 from the Centennial Ranch house, 2.55 km. south of Mount Tom, 12.2 km. west northwest of the GNIS location of Golden. 39.7936N, 105.3547W. WGS 1984 Elev. 2348 m. Annuals found on dry soil, top of gopher mounds.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 3088. 12-Jul-2023


Full Size Image“Rhubarb” Rheum hybridum, on the hillside in Guy Gulch.  
 

Rheum hybridum


Full Size ImageVisit with my cousin Sydney.  
 

Visit with my cousin Sydney

 

Other articles:
• Forest Road 435:  along the road;

Locations: Salt Creek.
Full Size ImageState Land Trust sign on fence along Forest Road 435 “Salt Creek Road.”  

 

Monday, 17 Jul 2023

Salt Creek


Full Size ImageColl. No. 3089, Symphyotrichum spathulatum.  
3089   

Erigeron, probably not E. subtrinervis.

Plants of Colorado
Asteraceae

Symphyotrichum spathulatum (Lindl.) G. L. Nesom.  Western Mountain Aster.

Salt Creek, Park County, Colorado. Terrace above Salt Creek, just off Forest Road 435 “Salt Creek Road,” 2.8 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9572N, 106.0044W. WGS 1984 Elev. 2822 m. Dry, lightly shaded, terrace above the creek. Also collected here: Lappula occidentalis, Astragalus hallii, and seen: Dodecatheon pulchellum, and Iris missouriensis. Variety spathulatum, if infraspecific names are to be applied.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3089. 17-Jul-2023

Coll. No. 3089, 17 July 2023, characters observed: Perennial herb, 18 cm.; Stem, ascending, glabrate, pilose below heads, hairs multicellular with clear crosswalls, glandular immediately below head; Leaves, basal, petiole, 22 mm., blade, 40 mm. × 8 mm. wide, oblong / elliptical / oblanceolate, cauline, reduced, 33 mm. × 4 mm., sessile, linear-lanceolate, sparsely pilose, margins, entire, closely appressed ciliate; Inflorescence, 1-5 heads per stem; Phyllaries, in 3± series, chartaceous proximally, green distally, midvein green, tips, acute; Flowers, of 2 kinds; Ray flowers, tube 2 mm. + blade 9 mm. × 2 mm. wide, blue, fertile; Disk flowers, many, yellow; Pappus, in two series, very short hairs and well-developed bristles, pappus of ray and disk flowers alike.

Erigeron sp. Collections made within 15 km. of this one:

Taxa Count: 18

ASTERACEAE

  • Erigeron canus
  • Erigeron compositus
  • Erigeron concinnus var. concinnus
  • Erigeron elatior
  • Erigeron eximius
  • Erigeron flagellaris
  • Erigeron formosissimus
  • Erigeron formosissimus var. viscidus
  • Erigeron grandiflorus
  • Erigeron leiomerus
  • Erigeron lonchophyllus
  • Erigeron pinnatisectus
  • Erigeron pumilus var. pumilus
  • Erigeron simplex
  • Erigeron speciosus
  • Erigeron subtrinervis
  • Erigeron vagus
  • Erigeron vetensis

Symphyotrichum:
Taxa Count: 6
ASTERACEAE

  • Aster foliaceus
  • Aster spathulatus
  • Symphyotrichum ascendens
  • Symphyotrichum foliaceum
  • Symphyotrichum foliaceum var. parryi
  • Symphyotrichum spathulatum
  3090   

Lappula ???

Plants of Colorado
Boraginaceae

Lappula occidentalis (S. Watson) Greene var. occidentalis.  Stickseed.

Salt Creek, Park County, Colorado. Terrace above Salt Creek, 100 m. northeast on the right bank of the creek, along Forest Road 435 “Salt Creek Road,” 2.8 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9577N, 106.0039W. WGS 1984 Elev. 2822 m. Dry soil at break in slope above creek. Also collected here: Symphyotrichum spathulatum, Astragalus hallii, and seen: Dodecatheon pulchellum, and Iris missouriensis.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3090. 17-Jul-2023

  3091   

Astragalus sp.

Plants of Colorado
Fabaceae

Astragalus hallii A. Gray var. hallii.  Hall's Milkvetch.

Salt Creek, Park County, Colorado. Terrace above Salt Creek, 135 m. northeast on the right bank of the creek, along Forest Road 435 “Salt Creek Road,” 2.8 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9578N, 106.0035W. WGS 1984 Elev. 2823 m. Sprawling from buried central caudex, flowers magenta fading blue, fruit dehiscing early. Also collected here: Symphyotrichum spathulatum, Lappula occidentalis, and seen: Dodecatheon pulchellum, and Iris missouriensis.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3091. 17-Jul-2023

  3092   

Potentilla hippiana.

Plants of Colorado
Rosaceae

Potentilla hippiana Lehm. var. hippiana.  Wooly Cinquefoil.

Salt Creek, Park County, Colorado. About 590 m. east of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9586N, 106.0011W. WGS 1984 Elev. 2816 m. Drying flat away from creek, with Oenothera coronopifolia, Artemisia frigida, Gutierrezia sarothrae, Juncus articus, and a sedge, probably Carex inops var. heliophila.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3092. 17-Jul-2023


Full Size ImageColl. No. 3093, Euphorbia sp.
Full Size ImageColl. No. 3093, Euphorbia brachycera.
Full Size ImageMature cyathium of Coll. No. 3093, Euphorbia brachycera.  
3093   

Euphorbia, maybe E. brachyceras.

Plants of Colorado
Euphorbiaceae

Euphorbia brachycera Engelm.  Horned Spurge.

Salt Creek, Park County, Colorado. Along the fence line, about 630 m. east of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.96N, 106.0012W. WGS 1984 Elev. 2821 m. Uncommon. Open mud-cracked flat, with Dasiphora fruticosa, Koeleria macrantha, Antennaria sp., and Gutierrezia sarothrae.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3093. 17-Jul-2023

Full Size Image
Young cyathium of Coll. No. 3093, Euphorbia brachycera.

Full Size ImageColl. No. 3094, Potentilla anserina.
Full Size ImageColl. No. 3094, Rosaceae Argentina anserina.  
3094   

Potentilla anserina.

Plants of Colorado
Rosaceae

Argentina anserina (L.) Rydb.  Silver Weed Cinquefoil.

Salt Creek, Park County, Colorado. Along the fence line, about 636 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9605N, 106.0014W. WGS 1984 Elev. 2821 m. Dry bank of small spring-fed creek, with Antennaria sp., and Artemisia frigida.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3094. 17-Jul-2023


Full Size ImageColl. No. 3095, Hymenopappus filifolius var. cinereus.  
3095   

Hymenopappus filifolius.

Plants of Colorado
Asteraceae

Hymenopappus filifolius Hook. var. cinereus (Rydb.) I. M. Johnst.  Fine Leaved Wooly White.

Salt Creek, Park County, Colorado. Along the fence line, about 636 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9613N, 106.0021W. WGS 1984 Elev. 2828 m. In stiff, dry soil that appears subject to sheet flow, with: Penstemon teucroides and Packera fendleri.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3095. 17-Jul-2023


Full Size ImageColl No. 3096, Corydalis aurea.  
3096   

Corydalis aurea.

Combined with Coll. No. 3097.

  3097   

Corydalis aurea.

Plants of Colorado
Fumariaceae

Corydalis aurea Willd.  Scrambled Eggs.

Salt Creek, Park County, Colorado. Banks of an arroyo, about 520 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9601N, 106.0027W. WGS 1984 Elev. 2826 m. Larger plants on the south side of the arroyo, smaller plants on the north side.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3097. 17-Jul-2023

  3097.1   

Rumex, maybe R. triangulivalvis.

Plants of Colorado
Polygonaceae

Rumex triangulivalvis (Danser) Rech. f.  Triangular-Valved Dock.

Salt Creek, Park County, Colorado. Banks of an arroyo, about 520 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.96011N, 106.00271W. WGS 1984 Elev. 2826 m. South slope of a developing arroyo.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3097.1 17-Jul-2023


Full Size ImageColl. No. 3098, Elymus lanceolatus var. lanceolatus Pascopyrum smithii.
Full Size ImageSpikelets of Coll. No. 3098, Elymus lanceolatus var. lanceolatus Pascopyrum smithii.  
3098   

Some sort of wheatgrass.

Plants of Colorado
Poaceae

Elymus lanceolatus (Scribn. & J. G. Sm.) Gould var. lanceolatus.  Thickspike Wheatgrass.

Salt Creek, Park County, Colorado. Base of hills, about 255 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.95896N, 106.00535W. WGS 1984 Elev. 2835 m. Strongly rhizomatous. Occasional at base of hills, stiff soil, edge of Ponderosa pine forest, also out on the plain.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3098. 17-Jul-2023

Pascopyrum smithii, 4/24/2024, Jan Wingate

  3099   

Eriogonum alatum.

Plants of Colorado
Polygonaceae

Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853.  Winged Buckwheat.

Salt Creek, Park County, Colorado. Base of hills, about 260 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.95898N, 106.0053W. WGS 1984 Elev. 2839 m. Edge of ponderosa pine forest, with Artemisia tridentata and Thermopsis rhombifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3099. 17-Jul-2023

  3100   

Eremogone, most likely E. fendleri.

Plants of Colorado
Caryophyllaceae

Eremogone fendleri (A. Gray) Ikonnikov.  Fendler's Sandwort.

Salt Creek, Park County, Colorado. Base of hills, about 240 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.95884N, 106.00545W. WGS 1984 Elev. 2839 m. Open ground at edge of ponderosa pine forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3100. 17-Jul-2023


Full Size ImageObs. No. 3350, Frasera speciosa in the middle of a small valley near Salt Creek, Park County, Colorado.
Full Size ImageObs. No. 3350, Bumble bee on Frasera speciosa in the middle of a small valley near Salt Creek, Park County, Colorado.  
 

Frasera speciosa along the north fence line in the middle of the valley. In addition, seven rosettes were seen.

 

Locations: Lily Lake. North Fork West Tennessee Creek. West Tennessee Creek.
Full Size ImageLily Lake and vicinity.  

 

Tuesday, 18 July 2023

 

Full Size ImageHabitat of Coll. No. 3101, Artemisia borealis, edge of flood plain of West Tennessee Creek.  
3101   

Artemisia borealis, approximately the same location as when found last year.

Plants of Colorado
Asteraceae

Artemisia borealis Pall. ssp. borealis.  Boreal Wormwood.

West Tennessee Creek, Lake County, Colorado. Edge of forest on west-facing slope above West Tennessee Creek, 588 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3472N, 106.3631W. WGS 1984 Elev. 3166 m. Near base of slope above former meander of West Tennessee Creek, with Leptosiphon nuttallii and Arenaria congesta. Coordinates estimated from GoogleEarth. Distances measured from GNIS point features.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3101. 18-Jul-2023

  3101.1   

Antennaria sp.

Plants of Colorado
Asteraceae

Antennaria rosea Greene.  Rosy Pussytoes.

West Tennessee Creek, Lake County, Colorado. Edge of forest on west-facing slope above West Tennessee Creek, 588 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3472N, 106.3631W. WGS 1984 Elev. 3166 m. Near base of slope above former meander of West Tennessee Creek, with Artemisia borealis, Leptosiphon nuttallii and Arenaria congesta. Coordinates estimated from GoogleEarth. Distances measured from GNIS point features.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3101.1 18-Jul-2023

Locations: West Tennessee Creek.
Full Size ImageColl. No. 3102.1, Danthonia intermedia and Coll. No. 3102, Phleum alpina.
Full Size ImageGeneral view of the flood plain of West Tennessee Creek.  

3102   

Phleum alpinum ???

Plants of Colorado
Poaceae

Phleum alpinum L.  Alpine Timothy.

West Tennessee Creek, Lake County, Colorado. Former meander of West Tennessee Creek, 575 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3471N, 106.3635W. WGS 1984 Elev. 3166 m. Grass with a spike-like inflorescence. Collected with Danthonia intermedia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3102. 18-Jul-2023

Full Size Image
Coll. No. 3102, Phleum alpinum.

Full Size ImageColl. No. 3102.1, Danthonia intermedia and Coll. No. 3102, Phleum alpina.
Full Size ImageColl. No. 3102.1, Danthonia intermedia.  
3102.1   

Grass Danthonia intermedia

Plants of Colorado
Poaceae

Danthonia intermedia Vasey.  Timber Oatgrass.

West Tennessee Creek, Lake County, Colorado. Former meander of West Tennessee Creek, 575 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3471N, 106.3634W. WGS 1984 Elev. 3166 m. Grass with a compressed panicle, lemma hairs restricted to margins. Collected with Phleum alpina.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3102.1 18-Jul-2023

  3102.2   

Potentilla sp.

Plants of Colorado
Rosaceae

Potentilla gracilis Hook. var. fastigiata (Nutt.) S. Watson.  Slender Cinquefoil.

West Tennessee Creek, Lake County, Colorado. Former meander of West Tennessee Creek, 575 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3471N, 106.3635W. WGS 1984 Elev. 3166 m. Collected with Danthonia intermedia, and Phleum alpunum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3102.2 18-Jul-2023

  3102.3   

Cymopterus sp.

Plants of Colorado
Apiaceae

Pseudocymopterus montanus (A. Gray) J. M. Coult. & Rose.  Alpine False Springparsley.

West Tennessee Creek, Lake County, Colorado. Former meander of West Tennessee Creek, 575 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3471N, 106.3634W. WGS 1984 Elev. 3166 m. Collected with Potentilla gracilis var. fastigiata, Danthonia intermedia, and Phleum alpunum.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3102.3 18-Jul-2023


Full Size ImageColl. No. 3103, Salix glauca.  
3103   

Salix sp.

Plants of Colorado
Salicaceae

Salix glauca L.  Gray Willow.

West Tennessee Creek, Lake County, Colorado. Former meander of West Tennessee Creek, 578 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3469N, 106.3636W. WGS 1984 Elev. 3164 m. Low shrub on floor of meander, also collected here: Pseudocymopterus montanus, Potentilla gracilis var. fastigiata, Danthonia intermedia, and Phleum alpinum. Variety villosa Andersson, if infraspecific names are to be applied.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3103. 18-Jul-2023


Full Size ImageColl. No. 3104, Boechera grahamii.  
3104   

Boechera stricta ???

Plants of Colorado
Brassicaceae

Boechera grahamii (Lehm.) Windham & Al-Shehbaz.  Graham's Rockcress.

West Tennessee Creek, Lake County, Colorado. Lowest terrace above West Tennessee Creek, 588 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3459N, 106.3653W. WGS 1984 Elev. 3168 m. First terrace above creek, sunny and dry, with Arenaria sp. and Erigeron sp.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3104. 18-Jul-2023


Full Size ImageColl. No. 3105, Heterotheca pumila
Full Size ImageColl. No. 3105, Heterotheca pumila.  
3105   

Heterotheca pumila.

Plants of Colorado
Asteraceae

Heterotheca pumila (Greene) Semple.  Alpine False Goldenaster.

West Tennessee Creek, Lake County, Colorado. Lowest terrace above West Tennessee Creek, 588 m. (geodesic) southeast of Lily Lake, 12.3 km. (geodesic) north northwest of Leadville. 39.3458N, 106.3656W. WGS 1984 Elev. 3171 m. First terrace above creek, sunny and dry, with Arenaria sp. and Erigeron sp.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3105. 18-Jul-2023

Other articles:
• Field Notes:  Coll. No. 2894, 20 Jul 2022;  

3106   

Caltha chionophila.

Plants of Colorado
Ranunculaceae

Caltha chionophila Greene.  Marsh Marigold.

West Tennessee Creek, Lake County, Colorado. In a meadow just north of West Tennessee Creek, 580 m. southwest of Lily Lake, 12.6 km. northwest of the GNIS location of Leadville. 39.3462N, 106.3715W. WGS 1984 Elev. 3205 m.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3106. 18-Jul-2023

See notes for Coll. No. 2894 regarding Caltha chionophila and C. leptosepala.


Full Size ImageMeadow above West Tennessee Creek with Pedicularis groenlancica and Packera sp.
Full Size ImageColl. No. 3107, Packera crocata.  
3107   

Packera dimorphophylla.

Plants of Colorado
Asteraceae

Packera crocata (Rydb.) W. A. Weber & A. Love.  Saffron Ragwort.

(Syn: Packera dimorphophylla (Greene) W.A. Weber & . Lve)

West Tennessee Creek, Lake County, Colorado. In a meadow just north of West Tennessee Creek, 580 m. southwest of Lily Lake, 12.6 km. northwest of the GNIS location of Leadville. 39.3466N, 106.3723W. WGS 1984 Elev. 3210 m. Basal leaves mostly withered, bases chordate to cuneate. Also collected here: Caltha chionophila.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3107. 18-Jul-2023


Full Size ImageHabitat of Coll. No. 3108, Veratrum californicum.
Full Size ImageColl. No. 3108, Veratrum californicum.  
3108   

Veratrum californicum.

Plants of Colorado
Melanthiaceae

Veratrum californicum Durand.  Helleborine, Corn Lily.

West Tennessee Creek, Lake County, Colorado. Meadow in a small valley between West Tennessee Creek and Lily Lake, 400 m. southwest of Lily Lake, 12.8 km. northwest of the GNIS location of Leadville. 39.3481N, 106.3713W. WGS 1984 Elev. 3235 m. Filling the floor of this little valley, also collected here: Senecio triangularis, Pedicularis racemosa, and Viola sp.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3108. 18-Jul-2023

  3109   

Senecio triangularis.

Plants of Colorado
Asteraceae

Senecio triangularis Hook.  Arrowleaf Ragwort.

West Tennessee Creek, Lake County, Colorado. Meadow in a small valley between West Tennessee Creek and Lily Lake, 400 m. southwest of Lily Lake, 12.8 km. northwest of the GNIS location of Leadville. 39.3481N, 106.3713W. WGS 1984 Elev. 3235 m. With Veratrum californicum, Pedicularis racemosa, and Viola sp.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3109. 18-Jul-2023


Full Size ImageColl. No. 3110, Pedicularis racemosa var. alba.  
3110   

Pedicularis racemosa ssp. alba.

Plants of Colorado
Orobanchaceae

Pedicularis racemosa Douglas ex Benth. ssp. alba Pennell.  Sickletop Lousewort.

West Tennessee Creek, Lake County, Colorado. Edge of lodgepole pine forest beside a meadow between West Tennessee Creek and Lily Lake, 400 m. southwest of Lily Lake, 12.8 km. northwest of the GNIS location of Leadville. 39.3479N, 106.3713W. WGS 1984 Elev. 3243 m. Leaves simple, serrate; flowers, white. With Veratrum californicum, Senecio triangularis in the meadow, and Viola sp. in the forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3110. 18-Jul-2023


Full Size ImageColl. No. 3111, Viola adunca.  
3111   

Viola sp.

Plants of Colorado
Violaceae

Viola adunca Sm.  Hooked Spur Violet.

West Tennessee Creek, Lake County, Colorado. Edge of lodgepole pine forest beside a meadow between West Tennessee Creek and Lily Lake, 400 m. southwest of Lily Lake, 12.8 km. northwest of the GNIS location of Leadville. 39.348N, 106.3712W. WGS 1984 Elev. 3244 m. Purple flowers, long spurs. With Veratrum californicum, Senecio triangularis in the meadow, and Pedicularis racemosa in the forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3111. 18-Jul-2023

Other articles:
• Field Notes:  Coll. No. 3021, 3 Jul 2023;  Coll. No. 3139, 20 Jul 2023;
Full Size ImageHabitat of Coll. No. 3112, Vaccinium scoparium.
Full Size ImageColl. No. 3112, Vaccinium scoparium.  

3112   

Vaccinium, probably V. myrtillus.

Plants of Colorado
Ericaceae

Vaccinium scoparium Leiberg ex Coville.  Grouse Whortleberry.

Lily Lake, Lake County, Colorado. Ridge south of Lily Lake on Lily Lake Loop trail, 230 m. south of Lily Lake, 12.7 km (geodesic) northwest of Leadville. 39.3488N, 106.3692W. WGS 1984 Elev. 3254 m. Rocky top of hill between West Tennessee Creek and Lily Lake. Primary ground cover here in lodgepole pine forest with no middlestory.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3112. 18-Jul-2023

Coll. No. 3112, 18 July 2023, characters observed: Perennial, low-growing; Stems, numerous narrow ridged branches “broom-like,” of current year, green, sharply angled; Leaves, alternate, lanceolate, 14 mm. × 6 mm. wide, margins serrulate, slightly revolute; Petals, united, pink;

Locations: Lily Lake.
Full Size ImageLily Lake from the other side.
Full Size ImageColl. No. 3113, Linnaea borealis.  

3113   

Undetermined.

Plants of Colorado
Caprifoliaceae

Linnaea borealis L.  Twinflower.

Lily Lake, Lake County, Colorado. Western shore of Lily Lake, sprawling over forest floor at base of trees, 12.9 km. northwest of the GNIS location of Leadville. 39.3509N, 106.3694W. WGS 1984 Elev. 3239 m.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3113. 18-Jul-2023

Full Size Image
Coll. No. 3113, Linnaea borealis.

Locations: North Fork West Tennessee Creek.
Full Size ImageColl. No. 3114, Cardamine cordifolia.
Full Size ImageColl. No. 3114. Cardamine cordifolia.  

3114   

Brassicaceae.

Plants of Colorado
Brassicaceae

Cardamine cordifolia A. Gray.  Heartleaf Bittercress.

North Fork West Tennessee Creek, Lake County, Colorado. Right bank of North Fork of West Tennessee Creek, 530 m. east northeast of Lily Lake, 12.7 km. north northwest of the GNIS location of Leadville. 39.352N, 106.3622W. WGS 1984 Elev. 3205 m. Growing on the bank of creek with Micranthes odontoloma.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3114. 18-Jul-2023


Full Size ImageColl. No. 3115, Micranthes odontoloma.  
3115   

Saxifragaceae.

Plants of Colorado
Saxifragaceae

Micranthes odontoloma (Piper) A. Heller.  Brook Saxifrage.

North Fork West Tennessee Creek, Lake County, Colorado. Right bank of North Fork of West Tennessee Creek, 530 m. east northeast of Lily Lake, 12.7 km. north northwest of the GNIS location of Leadville. 39.352N, 106.3623W. WGS 1984 Elev. 3203 m. In a damp ephemeral stream channel, collected with Cardamine cordifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3115. 18-Jul-2023

Locations: Lily Lake.
Full Size ImageObs. No. 3359, Nuphar polysepala  

 

Nuphar polysepala

 

Other articles:
• Forest Road 189:  upper meadow;   on the road;

Locations: Unnamed Gulch.
Full Size ImageUppermost meadow on Forest Road 189.  

 

Wednesday, 19 July 2023

Full Size Image
Uppermost meadow on Forest Road 189.
Full Size Image
View of Mount Massive across Tennessee Park.
Full Size Image
Little creek in the willow thicket.
Full Size Image
Location of Plant Collections on Forest Road 189.
 

Full Size ImageColl. No. 3116, Agoseris glauca var. dasycephala.  
3116   

Agoseris, maybe A. glauca.

Plants of Colorado
Asteraceae

Agoseris glauca (Pursh) Raf. var. dasycephala (Torr. & A. Gray) Jeps.  Pale Goat-Chicory.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.2984N, 106.31697W. WGS 1984 Elev. 3095 m. Between the road and the creek to the south, open shrubland with Artemisia tridentata, Eriogonum umbellatum, and Dasophora fritucosa.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3116. 19-Jul-2023


Full Size ImageColl. No. 3117, Eriocoma lettermanii.  
3117   

Eriocoma nelsonii lettermanii.

Plants of Colorado
Poaceae

Eriocoma lettermanii (Vasey) Romansch.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.2984N, 106.31695W. WGS 1984 Elev. 3095 m. Between the road and the creek to the south, open shrubland with Agoseris glauca var. dasycephala, Artemisia tridentata, Eriogonum umbellatum, and Dasiophora fruticosa.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3117. 19-Jul-2023

  3118   

Salix sp., probably S. brachycarpa var. brachycarpa.

Placed in "deferred" pile.


Full Size ImageColl. No. 3119, Linum perenne.  
3119   

Linum, probably L. lewisii.

Plants of Colorado
Linaceae

Linum perenne L.  Blue Flax.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29799N, 106.31703W. WGS 1984 Elev. 3093 m. Many stems, not particularly vasiform; a few short-styled flowers among almost all long-styled. Openings in willow thicket near creek.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3119. 19-Jul-2023

  3120   

Oxypolis fendleri.

Plants of Colorado
Apiaceae

Oxypolis fendleri (A. Gray) Heller.  Fendler's Cowbane.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29797N, 106.3171W. WGS 1984 Elev. 3091 m. South of the road in willow thicket, on bank of creek.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3120. 19-Jul-2023


Full Size ImageColl. No. 3121, Lonicera involucrata.  
3121   

Lonicera involucrata

Plants of Colorado
Caprifoliaceae

Lonicera involucrata (Richardson) Banks ex Spreng.  Twinberry Honeysuckle.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29794N, 106.31707W. WGS 1984 Elev. 3094 m. South of the road in willow thicket, streamside.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3121. 19-Jul-2023


Full Size ImageColl. No. 3122, Bistorta bistortoides.  
3122   

Bistorta bistortoides.

Plants of Colorado
Polygonaceae

Bistorta bistortoides (Pursh) Small.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29752N, 106.31733W. WGS 1984 Elev. 3091 m. Muddy, wet place in willow thicket.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3122. 19-Jul-2023

  3123   

Pedicularis groenlandica.

Plants of Colorado
Orobanchaceae

Pedicularis groenlandica Retz.  Elephanthead Lousewort.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29755N, 106.31738W. WGS 1984 Elev. 3090 m. Muddy, wet places in willow thicket, south of the road and the creek.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3123. 19-Jul-2023


Full Size ImageColl. No. 3124, Agrostis scabra.  
3124   

Tiny little grass.

Plants of Colorado
Poaceae

Agrostis scabra Willd.  Rough Bentgrass.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29759N, 106.31735W. WGS 1984 Elev. 3088 m. Tiny little grass. Damp openings in willow thicket, south of the road and the creek.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3124. 19-Jul-2023


Full Size ImageColl. No. 3125, Festuca trachyphylla Festuca cf. calligera.  
3125   

Mid-size grass.

Plants of Colorado
Poaceae

Festuca trachyphylla (Hack.) Krajina.  Hard Fescue.

Festuca cf. calligera (Piper) Rydb., Jan Wingate, 4/23/2024.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29737N, 106.31657W. WGS 1984 Elev. 3093 m. Mid-size grass. South side of the gulch on the edges of an open aspen forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3125. 19-Jul-2023

Coll. No. 3125, 19 July 2023, characters observed: Perennial grass, to 35 cm., not rhizomatous; Stem, ascending at base, glabrous below inflorescence; Leaves, sheath, open, ligule, membranous ears with cilia [see Shaw (2008) fig. 242], blade, ≤0.5 mm. wide, revolute, hairy inside; Inflorescence, 1 per culm, >leaves, panicle, spreading, ascending, 90 mm. × 30 mm. wide; Spikelets, many, 7 mm. × 2 mm. wide, similar, borne singly; Glumes, lower, 3.3 mm., veins, 1(3?) [except for mid-veins, all veins on glumes and lemmas are obscure] upper, 4.0 mm., <lowest floret, veins, 1(3?), awns, 0; Florets, 4 per spikelet; Lemma, 4.5 mm., >glumes, membranous, rolled, proximally short hairy, distally scabrous, veins, #5???, glabrous, awns, #1, 2.5-4.0 mm., straight, attached end; Palea, ±=lemma, membranous; Anthers, 2.1-2.7 mm.; Ovary, apex with a couple hair-like things.

  3126   

Pseudocymopterus montanus.

Plants of Colorado
Apiaceae

Pseudocymopterus montanus (A. Gray) J. M. Coult. & Rose.  Alpine False Springparsley.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.2974N, 106.31664W. WGS 1984 Elev. 3093 m. South side of the gulch on the edges of an open aspen forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3126. 19-Jul-2023

  3127   

Aquilegia coerulea.

Plants of Colorado
Ranunculaceae

Aquilegia coerulea E. James.  Colorado Blue Columbine.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.2974N, 106.31658W. WGS 1984 Elev. 3094 m. South side of the gulch on the edges of an open aspen forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3127. 19-Jul-2023


Full Size ImageColl. No. 3128, Lupinus argenteus var. rubricaulis.  
3128   

Lupinus argenteus var. ?.

Plants of Colorado
Fabaceae

Lupinus argenteus Pursh var. rubricaulis (Greene) S.L. Welsh.  Silvery Lupine.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29742N, 106.31655W. WGS 1984 Elev. 3097 m. South side of the gulch on the edges of an open aspen forest.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3128. 19-Jul-2023


Full Size ImageColl. No. 3129, Oxytropis sp., maybe.
Full Size ImageColl. No. 3129, Oxytropis deflexa var. sericea.  
3129   

Oxytropis ?

Plants of Colorado
Fabaceae

Oxytropis deflexa (Pall.) DC. var. sericea Torr. & A. Gray.  Nodding Locoweed.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29775N, 106.3168W. WGS 1984 Elev. 3094 m. Plants shortly caulescent, 1-3 nodes; tiny magenta flowers; peduncle elongating in fruit; mature fruit pendulous. Full sun, openings in willow thicket just south of the creek.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3129. 19-Jul-2023


Full Size ImageColl. No. 3130, Bistorta vivipara.  
3130   

Bistorta vivipara.

Plants of Colorado
Polygonaceae

Bistorta vivipara (L.) Delarbre.  Alpine Bistort.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.29789N, 106.31684W. WGS 1984 Elev. 3093 m. Growing in moss on bank of creek in a willow thicket south of the road.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3130. 19-Jul-2023


Full Size ImageColl. No. 3131, Astragalus alpinus.  
3131   

Astragalus sp.

Plants of Colorado
Fabaceae

Astragalus alpinus L.  Alpine Milkvetch.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. east of County Road 18 “East Tennessee Road,” 5.69 km. (geodesic) north northwest of the GNIS location of Leadville. 39.2981N, 106.31693W. WGS 1984 Elev. 3093 m. Tiny little Astragalus in sunny opening of willow thicket, beside game trail; between the road and the creek to the south.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3131. 19-Jul-2023

   

 

Thursday, 20 July 2023

Evans Gulch

  3132   

Castilleja sulphurea.

Plants of Colorado
Orobanchaceae

Castilleja sulphurea Rydb.  Sulphur Indian Paintbrush.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2606N, 106.22036W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3132. 20-Jul-2023

  3133   

Eremogone fendleri.

Plants of Colorado
Caryophyllaceae

Eremogone fendleri (A. Gray) Ikonnikov.  Fendler's Sandwort.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26062N, 106.22032W. WGS 1984 Elev. 3447 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3133. 20-Jul-2023


Full Size ImageColl. No. 3134, Festuca trachyphylla Festuca cf. calligera.  
3134   

Poa sp.

Plants of Colorado
Poaceae

Festuca trachyphylla (Hack.) Krajina.  Hard Fescue.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26062N, 106.22031W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3134. 20-Jul-2023

Coll. No. 3134, 20 July 2023, characters observed: Perennial grass, 30-35 cm., forming dense clumps; Stem, glabrous; Leaves, most basal, on flowering culm: sheath, 80 mm., open >½, ligule, membranous, u-shaped [as illustrated in Shaw (2008) and FNANM], <1 mm.; blade, 40-60 mm. × 0.4 mm. dia., revolute, adaxial (inside) hairy, abaxial scabrous; Inflorescence, 1 per culm, >leaves, panicle, 70 mm. × 10-15 mm. wide; Spikelets, many, 6 mm. (plus awns) × 2.2 mm. wide, similar, borne singly; Glumes, lower, 2.5 mm., veins, #1, upper, 4.0 mm., <lowest floret, veins, #3 awns, 0; Florets, 4 per spikelet; Lemma, 4.5 mm., glabrous, distally scabrous, veins, #5, awns, #1, 2.5 mm., straight attached end; Palea, 4.6 mm., ±=lemma; Anthers, 2.6 mm.; Ovary, glabrous.

  3135   

Pseudocymopterus montanus.

Plants of Colorado
Apiaceae

Pseudocymopterus montanus (A. Gray) J. M. Coult. & Rose.  Alpine False Springparsley.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26055N, 106.22033W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3135. 20-Jul-2023

  3136   

Penstemon whippleanus.

Plants of Colorado
Plantaginaceae

Penstemon whippleanus A. Gray.  Whipples Penstemon.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26062N, 106.22036W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope. One of the specimens has several insect galls.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3136. 20-Jul-2023


Full Size ImageColl. No. 3137, Oxytropis splendens.  
3137   

Maybe some sort of Oxytropis (?).

Plants of Colorado
Fabaceae

Oxytropis splendens Douglas ex Hook.  Showy Locoweed.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26067N, 106.22028W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3137. 20-Jul-2023


Full Size ImageColl. No. 3138, Symphyotrichum foliaceum var. apricum.  
3138   

Erigeron sp.

Plants of Colorado
Asteraceae

Symphyotrichum foliaceum (DC.) G. L. Nesom var. apricum (A. Gray) G. L. Nesom.  Parry's Aster.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2607N, 106.22029W. WGS 1984 Elev. 3450 m. Quite glandular-hairy. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3138. 20-Jul-2023

Coll. No. 3138, 20 July 2023, characters observed: Perennial, to 7 cm. (one previous year scape to 20 cm.); Stem, hairy, not in distinct lines, becoming glandular above; Leaves, basal, petiole 9 mm. + blade 20 mm. × 7 mm. wide, oblanceolate, ciliate, less so above; cauline, 24 mm. × 6 mm., sessile, neither auriculate nor clasping, narrowly lanceolate; Phyllaries, 3 series, outer > inner, green, purple-tipped, inner becoming scarious on margins, glandular-hairy; Receptacle, epaleate; Ray flowers, blue, tube 2.5 mm. + blade 7 mm. × 1.2 mm. wide, fertile; Disk flowers, yellow, tube 3 mm. gradually expandin, + lobes, 0.3 mm.; Pappus, capillary bristles, one series.

Other articles:
• Field Notes:  Coll. No. 3021, 3 Jul 2023;  Coll. No. 3112, 18 Jul 2023;
Full Size ImageColl. No, 3139, Vaccinium cespitosum.  

3139   

Vaccinium, maybe V. myrtillis.

Plants of Colorado
Ericaceae

Vaccinium cespitosum Michx.  Dwarf Blueberry.

Evans Gulch, Lake County, Colorado. South-facing slope in full sun, above Evans Gulch, at the end of County Road 3, 6.33 km.(geodesic) east northeast of the GNIS location of Leadville. 39.2607N, 106.2203W. WGS 1984 Elev. 3450 m.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3139. 20-Jul-2023

Coll. No. 3139, 20 July 2023, characters observed: Perennial, low-growing; Stems, of current year, terete, yellow-green, finely puberulent in patches (not in lines); Leaves, alternate, oblanceolate, 20 mm. × 5.5 mm. wide, margin serrulate; No flowers or fruit.

  3140   

Calochortus gunnisonii.

Plants of Colorado
Liliaceae

Calochortus gunnisonii S. Watson.  Gunnison's Mariposa Lily.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26068N, 106.2204W. WGS 1984 Elev. 3450 m. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3140. 20-Jul-2023


Full Size ImageColl. No. 3141, Eriogonum umbellatum var. majus.  
3141   

Eriogonum unbellatum.

Plants of Colorado
Polygonaceae

Eriogonum umbellatum Torrey, Ann. Lyceum Nat. Hist. New York. 2: 241. 1827. var. majus Hook.  Subalpine Sulphur-Flower Buckwheat.

Evans Gulch, Lake County, Colorado. Middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.26066N, 106.22032W. WGS 1984 Elev. 3450 m. Perianth light yellow. Sunny open southeast-facing slope.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3141. 20-Jul-2023

 

Locations: DeLong Park (City of Golden).  

 

Saturday, 22 July 2023

Weeding at DeLong Park.


Full Size ImageColl. No. 3142, Cycloloma atriplicifolium.  
3142   

Cycloloma atriplicifolium.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Cycloloma atriplicifolium (Spreng.) J. M. Coult.  Winged-Pigweed.

DeLong Park (City of Golden), Jefferson County, Colorado. On the edge of a mowed area, in the hydroseeded native area, north corner of park on 23rd Street opposite Table Drive, 1.74 km. southeast of the GNIS location of Golden 39.74902N, 105.20804W. WGS 1984 Elev. 1765 m. DeLong Park was a private residence that was left fallow for a number of years, then converted to a city park in 2021-2022. This 2023 collection was made, therefore, in the second growing season after park construction. Not previously collected in Golden; unclear whether this plant was previously here, brought in with the soil amendment, or was a contaminant in the seed mix.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3142. 22-Jul-2023

 

Locations: Guy Gulch.  

 

Wednesday, 26 July 2023

 
  3143   

Veronica peregrina, white flowers.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Veronica peregrina L. var. xalapensis (Kunth) H.St.John.  Neckweed.

Guy Gulch, Jefferson County, Colorado. Muddy stream bed of upper meadow accessed by way of Pyrenees Lane, 40 m. northeast of line shack, 13.8 km. (geodesic) northwest of the GNISlocation of Golden. 39.81316N, 105.36334W. WGS 1984 Elev. 2605 m. White flowers. Sunny steam bed, with Stellaria longipes and Montia chamissoi.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vicjery 3143. 26-Jul-2023

  3144   

Montia chammisoi.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Montiaceae

Montia chamissoi (Spreng.) Greene.  Toad Lily.

Guy Gulch, Jefferson County, Colorado. Meadow north of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 40 m. northeast of the line shack, 1.09 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8132N, 105.36339W. WGS 1984 Elev. 2604 m. Muddy, wet but not flowing creek bed.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3144. 26-Jul-2023

  3145   

Stellaria, probably S. longipes.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caryophyllaceae

Stellaria longipes Goldie ssp. longipes.  Longstalk Starwort.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 40 m. northeast of the line shack, 1.09 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81319N, 105.3634W. WGS 1984 Elev. 2605 m. In the muddy, wet, but not flowing, creek bed; also here: Montia chamissoi, Veronica peregrina, and Potentilla norvegica. Same as Coll. No. 3006.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3145. 26-Jul-2023

Subject to label mixup with #3018, per Jan Wingate, 4/23/2024.


Full Size ImageColl. No. 3146, Bouteloua gracilis.  
3146   

Bouteloua gracilis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Bouteloua gracilis (Kunth) Lag. ex Griffiths.  Blue Grama.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 40 m. northeast of the line shack, 1.08 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8132N, 105.36337W. WGS 1984 Elev. 2607 m. Comparatively short stature for this grass.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3146. 26-Jul-2023

  3147   

Oenothera, maybe O. villosa.


Full Size ImageColl. No. 3148, Rorippa palustris.  
3148   

Rorippa, maybe R. teres, check for vesicular trichomes.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Brassicaceae

Rorippa palustris (L.) Besser.  Bog Yellow-Cress.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 27 m. northeast of the line shack, 1.08 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.813N, 105.36333W. WGS 1984 Elev. 2606 m. Streambed, waterlogged but not flowing.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3148. 26-Jul-2023

  3149   

Hesperostipa comata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Hesperostipa comata (Trin. & Rupr.) Barkworth.  Needle and Thread.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 45 m. northeast of the line shack, 1.08 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81319N, 105.36329W. WGS 1984 Elev. 2609 m. Sunny meadow, also collected here: Oenothera villosa, Veronica peregrina var. xalapensis, and Bouteloua gracilis.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3149. 26-Jul-2023


Full Size ImageColl. No. 3150, Antennaria microphylla  
3150   

Antennaria microphylla.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Antennaria microphylla Rydb.  Littleleaf Pussytoes.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 35 m. east northeast of the line shack, 1.08 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81297N, 105.36321W. WGS 1984 Elev. 2610 m. East side of meadow, edge of forest with aspen, spruce and ponderosa pine, growing with Antennaria parviflora.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3150. 26-Jul-2023

  3151   

Astragalus miser

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus alpinus L.  Alpine Milkvetch.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 53 m. east northeast of the line shack, 1.06 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81304N, 105.36302W. WGS 1984 Elev. 2610 m. East side of meadow, edge of forest af aspen, spruce and ponderosa pine. Circumboreal.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3151. 26-Jul-2023

Coll. No. 3151, 26 July 2023, characters observed: Perennial herb, to 25 cm., sprawling, ascending, hairs basifixed, white and black; Leaves, compound, 69 mm. × 23 mm. wide, leaflets, #21, 11 mm. × 4 mm. wide, ovate, stipules, connate into a sheath; Calyx, tube 2 mm. + lobes 2 mm., not inflated, hairs black; Flowers, #10-12, 8 mm., close raceme but not crowded like A. agrestis, banner, flexed at 4 mm., keel, 9 mm., >wings; Fruit, stipe, 1.5 mm., legume, 10.5 mm. × 3 mm. wide, pendulous, hairs black.


Full Size ImageColl. No. 3152, Danthonia parryi.  
3152   

Danthonia, probably D. parryi.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Danthonia parryi Scribn.  Parry's Oatgrass.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 53 m. east northeast of the line shack, 1.06 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81304N, 105.36304W. WGS 1984 Elev. 2610 m. East side of meadow, edge of forest of aspen, spruce and ponderosa pine.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3152. 26-Jul-2023

Coll. No. 3152, 26 July 2023, characters observed: Panicle erect to ascending (spreading); Spikelets, 14-16 mm., 5+ florets; Glumes, 16 mm., ±equal, >lemma; Lemma, 13 mm., tip, deeply bifid, awn, #1, 13 mm., attached back, hairy on margins, veins, and some areas of back, but most of back is glabrous; Anthers, 3.2 mm.

   

There is no Coll. No. 3153

  3154   

Campanula rotundifolia.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Campanulaceae

Campanula rotundifolia L.  Harebell.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, meadow 53 m. east northeast of the line shack, 1.06 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81307N, 105.36302W. WGS 1984 Elev. 2615 m. East side of meadow, edge of forest of aspen, spruce and ponderosa pine.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3154. 26-Jul-2023

Locations: Guy Gulch.
Full Size ImageOld road, location of Coll. Nos. 3155-3162.
Full Size ImageOld road, location of Coll. Nos. 3155-3162.  

3155   

Astragalus miser.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus miser Douglas ex. Hook. var. oblongifolius (Rydb.) Cronquist.  Timber Milkvetch.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 61 m. east northeast of the line shack, 1.05 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81308N, 105.36293W. WGS 1984 Elev. 2619 m. On an old road through forest of aspen, spruce and ponderosa pine, with Oxytropis lambertii and Packera fendleri.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3155. 26-Jul-2023

Full Size Image
Coll. No. 3155, Astragalus miser var. oblongifolius.

Full Size ImageColl. No. 3156, Penstemon glaber var. alpinus.  
3156   

Penstemon, neither P. virens nor P. secundiflorus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Penstemon glaber Pursh var. alpinus (Torr.) A. Gray.  Sawsepal Penstemon.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 71 m. east northeast of the line shack, 1.05 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81309N, 105.36281W. WGS 1984 Elev. 2623 m. On the edge of an old road through forest of aspen, spruce and ponderosa pine, with Oxytropis lambertii and Packera fendleri.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3156. 26-Jul-2023

Coll. No. 3156, 26 July 2023, characters observed: Perennial herb, to 30 cm., not mat-forming; Leaves, opposite, sessile, lanceolate to oblanceolate, 90 mm. × 14 mm. wide, glabrous, entire (not undulate or crisped); Inflorescence, axis, glabrous; Flowers, 30 mm., blue; Stamens, included; Staminode, slightly notched at tip; Anthers, 3.7 mm., sacs, short hairy opposite dehiscence.

  3157   

Sedum lanceolatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Crassulaceae

Sedum lanceolatum Torr.  Spearleaf Stonecrop.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 79 m. east northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81298N, 105.36267W. WGS 1984 Elev. 2621 m. On the edge of an old road through forest of aspen, spruce and ponderosa pine, with Packera fendleri, Oxytropis lambertii, and Penstemon glaber var. alpinus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3157. 26-Jul-2023

  3158   

Grass, large ovate inflorescence.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Koeleria macrantha (Ledeb.) Schult.  Prairie Junegrass.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 70 m. east northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81298N, 105.3628W. WGS 1984 Elev. 2621 m. In the middle of an old road through forest of aspen, spruce and ponderosa pine, with Packera fendleri, Sedum lanceolatum, Oxytropis lambertii, and Penstemon glaber var. alpinus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3158. 26-Jul-2023

  3159   

Oxytropis lambertii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Oxytropis lambertii Pursh.  Purple Locoweed.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 70 m. east northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81311N, 105.36284W. WGS 1984 Elev. 2622 m. Beside an old road through forest of aspen, spruce and ponderosa pine, with Packera fendleri, Sedum lanceolatum, Penstemon glaber var. alpinus, and Koeleria macrantha.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3159. 26-Jul-2023


Full Size ImageColl. No. 3160, Astragalus laxmannii var. robustior.  
3160   

Astragalus, large sprawling plant, white flowers, not shrubby like A. drummondii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh.  Prairie Milkvetch.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 80 m. east northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81298N, 105.36265W. WGS 1984 Elev. 2623 m. Woody taproot, caulescent, sprawling, dolabriform hairs, large leaves and ochroleucous flowers. Beside an old road through forest of aspen, spruce and ponderosa pine, with Packera fendleri, Sedum lanceolatum, Oxytropis lambertii, Penstemon glaber var. alpinus, and Koeleria macrantha.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3160. 26-Jul-2023

  3161   

Calochortus gunnisonii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Liliaceae

Calochortus gunnisonii S. Watson.  Gunnison's Mariposa Lily.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 110 m. southeast of the line shack, 1.05 km. west southwest of Mt. Tom, 13.65 km. (geodesic) northwest of the GNIS location of Golden. 39.81236N, 105.36249W. WGS 1984 Elev. 2624 m. Small patch at the end of an old road. Sunny opening in forest of aspen, spruce, and ponderosa pine.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3161. 26-Jul-2023


Full Size ImageColl. No. 3162, Packera fendleri.  
3162   

Packera fendleri.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Packera fendleri (A. Gray) W.A. Weber & . Lve.  Fendler’s Ragwort.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 63 m. southeast of the line shack, 1.05 km. west southwest of Mt. Tom, 13.65 km. (geodesic) northwest of the GNIS location of Golden. 39.81292N, 105.36285W. WGS 1984 Elev. 2621 m. On an old road through forest of aspen, spruce and ponderosa pine, with Sedum lanceolatum, Oxytropis lambertii, Penstemon glaber var. alpinus, and Koeleria macrantha.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3162. 26-Jul-2023

Literature Cited:
- Rose, Jeffrey P., 2021.
- Rose, Jeffrey P., Cassio A. P. Toledo, Emily Moriarty Lemmon, Alan R, Lemmon, and Kenneth J. Sytsma, 2021.  

3163   

Polemonium foliosissimum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polemoniaceae

Polemonium foliosissimum A. Gray.  Towering Jacob's Ladder.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, in front of the line shack, 1.07 km. west southwest of Mt. Tom, 13.7 km. (geodesic) northwest of the GNIS location of Golden. 39.81288N, 105.3635W. WGS 1984 Elev. 2607 m. Sunny spot, with grasses and small shrubs.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3163. 26-Jul-2023

Sounds like P. foliosissimum is about to undergo a revision. Unfortunately, the relevant article (Rose, 2021) is behind a paywall that not even Sci-Hub could break through.

  3164   

Solidago nana, may be mixed collection with S. missouriensis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Solidago missouriensis Nutt.  Missouri Goldenrod.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 72 m. north of the line shack, 1.07 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81349N, 105.36337W. WGS 1984 Elev. 2615 m. Sunny openings in grass.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3164. 26-Jul-2023

  3165   

Eriogonum alatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853.  Winged Buckwheat.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 73 m. north of the line shack, 1.07 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.8135N, 105.36337W. WGS 1984 Elev. 2615 m. Open, sunny, meadow with Solidago missouriensis and Elymus elymoides.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3165. 26-Jul-2023

  3166   

Elymus elymoides.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Elymus elymoides (Raf.) Swezey.  Squirreltail Grass.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 73 m. north of the line shack, 1.07 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81348N, 105.36336W. WGS 1984 Elev. 2613 m. Open, sunny, meadow with Solidago missouriensis and Eriogonum alatum.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3166. 26-Jul-2023

  3167   

Monarda fistulosa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Lamiaceae

Monarda fistulosa L.  Wild Bergamot.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 128 m. north of the line shack, 1.07 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81401N, 105.36347W. WGS 1984 Elev. 2621 m. Sunny meadow, also collected here, Oreocarya virgata and Astragalus alpinus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3167. 26-Jul-2023

  3168   

Astragalus alpinus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Astragalus alpinus L.  Alpine Milkvetch.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 128 m. north of the line shack, 1.07 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81399N, 105.36339W. WGS 1984 Elev. 2621 m. Sunny meadow, also collected here, Oreocarya virgata and Monarda fistulosa.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3168. 26-Jul-2023

  3169   

Galium boreale.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rubiaceae

Galium boreale L.  Bedstraw.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 260 m. north of the line shack, 1.11 km. west southwest of Mt. Tom, 13.9 km. (geodesic) northwest of the GNIS location of Golden. 39.81513N, 105.36428W. WGS 1984 Elev. 2642 m. Bank of stream with aspen, Douglas fir, and ponderosa pine, also collected here: Nassella viridula.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3169. 26-Jul-2023

   

with Galium boreale.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Caryophyllaceae

Cerastium arvense L. ssp. strictum Gaudin.  Field Chickweed.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 260 m. north of the line shack, 1.11 km. west southwest of Mt. Tom, 13.9 km. (geodesic) northwest of the GNIS location of Golden. 39.81513N, 105.36428W. WGS 1984 Elev. 2642 m. Bank of stream with aspen, Douglas fir, and ponderosa pine, also collected here: Nassella viridula.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3169.1 26-Jul-2023

  3170   

Nassella viridula.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Nassella viridula (Trin.) Barkworth.  Green Needlegrass.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 260 m. north of the line shack, 1.11 km. west southwest of Mt. Tom, 13.9 km. (geodesic) northwest of the GNIS location of Golden. 39.81518N, 105.36423W. WGS 1984 Elev. 2643 m. Bank of stream with aspen, Douglas fir, and ponderosa pine, also collected here: Galium boreale.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3170. 26-Jul-2023

  3171   

Oreocarya virgata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Boraginaceae

Oreocarya virgata (Porter) Greene.  Miner"s Candle.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 140 m. north northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.9 km. (geodesic) northwest of the GNIS location of Golden. 39.81407N, 105.36314W. WGS 1984 Elev. 2628 m. Partially eaten. On a small berm from some long-ago disturbance.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3171. 26-Jul-2023

  3171.1   

Penstemon, lance-linear leaves, flowers blue-purple, neither P. secundiflorus nor P. virens, nor the sam as Coll. No. 3156.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Plantaginaceae

Penstemon virgatus A. Gray var. asa-grayi (Crosswh.) Dorn.  Upright Blue Beardtongue.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 140 m. north northeast of the line shack, 1.04 km. west southwest of Mt. Tom, 13.9 km. (geodesic) northwest of the GNIS location of Golden. 39.81408N, 105.36314W. WGS 1984 Elev. 2628 m. Leaves lance-linear, flowers just starting to open, On a small berm from some long-ago disturbance, with Oreocarya virgata.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3171.1 26-Jul-2023

  3172   

Potentilla, maybe P. norvegica.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Potentilla norvegica L.  Norwegian Cinquefoil.

Guy Gulch, Jefferson County, Colorado. North of Guy Gulch, accessed by a ranch road off of Pyrenees Lane, 30 m. north northeast of the line shack, 1.09 km. west southwest of Mt. Tom, 13.8 km. (geodesic) northwest of the GNIS location of Golden. 39.81307N, 105.36338W. WGS 1984 Elev. 2616 m. Beside stream near line shack, collected nearby: Rorippa palustris, Stellaria longipes ssp. longipes, and Veronica peregrina var. xalapensis. Circumpolar.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3172. 26-Jul-2023

   

 

Friday, 28 July 2023

Schweich Hill, weeding.

Locations: Schweich Hill.
Full Size ImageEuphorbia marginata seen on edge of social trail.  

 

Observation No. 3359, Euphorbia marginata.

 

Other articles:
• Golden Gate Canyon Road:   along the road;

Locations: Guy Gulch.
Full Size ImageWhere we parked on July 31st.  

 

Monday, 31 July 2023

Guy Gulch, with John Vickery

  3173   

Equisetum arvense.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Equisetaceae

Equisetum arvense L.  Field Horsetail.

Guy Gulch, Jefferson County, Colorado. Southwest side of the gulch, 680 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.7983N, 105.36056W. WGS 1984 Elev. 2376 m. In shaded seep beside creek, with Betula occidentalis, willows , and cottonwoods.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3173. 31-Jul-2023

  3174   

Betula occidentalis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Betulaceae

Betula occidentalis Hook.  Water Birch.

Guy Gulch, Jefferson County, Colorado. Southwest side of the gulch, 680 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79829N, 105.36056W. WGS 1984 Elev. 2376 m. Shaded lower terrace just above creek, with Equisteum arvense, willows , and cottonwoods.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3174. 31-Jul-2023

  3175   

Erigeron speciosus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Erigeron speciosus (Lindl.) DC.  Aspen Fleabane.

Guy Gulch, Jefferson County, Colorado. Southwest side of the gulch, 690 m. northwest of Centennial Ranch, 12.9 km. northwest of the GNIS location of Golden. 39.79827N, 105.36074W. WGS 1984 Elev. 2386 m. Steep slope below rock outcrop, with Senecio pudicus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3175. 31-Jul-2023


Full Size ImageColl. No. 3176, Senecio pudicus.  
3176   

Senecio pudicus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Senecio pudicus Greene.  Bashful Ragwort.

Guy Gulch, Jefferson County, Colorado. Southwest side of the gulch, 690 m. northwest of Centennial Ranch, 12.9 km. northwest of the GNIS location of Golden. 39.79827N, 105.36073W. WGS 1984 Elev. 2386 m. Composite. with nodding flowers. Steep slope above creek, twining through Symphoricarpos sp., with Erigeron speciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3176. 31-Jul-2023


Full Size ImageColl. No. 3177, Eriogonum umbellatum var. ramulosum.  
3177   

Eriogonum umbellatum var. ramulosum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Eriogonum umbellatum Torr. var. ramulosum Reveal.  Buffalo Bill's Sulphur Flower.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 600 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden, and 12.7 km. northwest of Buffalo Bill's grave. 39.79777N, 105.35992W. WGS 1984 Elev. 2379 m. Outwash delta of small watercourse with smooth brome, snowberry, aspen, and water birch. This collection fits the description of var. ramulosum with the branched inflorescence and bracted branches, whereas other parts of same plant do not. Coll. No. 3078 made nearby was similarly ambiguous as to variety.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3177. 31-Jul-2023

  3178   

Heterotheca villosa.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Heterotheca villosa (Pursh) Shinners var. nana (A. Gray) Semple.  Hairy False Golden Aster.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 618 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79766N, 105.36023W. WGS 1984 Elev. 2392 m. Open southeast-facing slope above small gulch tributary to Guy Gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3178. 31-Jul-2023

  3179   

Helianthis pumilis.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Helianthus pumilus Nutt.  Little Sunflower.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 615 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79764N, 105.3602W. WGS 1984 Elev. 2390 m. Open southeast-facing slope of ridge above small gulch tributary to Guy Gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3179. 31-Jul-2023

  3180   

Dieteria sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman var. bigelovii.  Bigelow's Tansy Aster.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 615 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79762N, 105.36024W. WGS 1984 Elev. 2389 m. Open southeast-facing slope of ridge above small gulch tributary to Guy Gulch, also here: Helianthus pumilis and Heterotheca villosa.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3180. 31-Jul-2023

  3181   

Bromus, probably B. lanatipes.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Bromus lanatipes (Shear) Rydb.  Wooly Brome.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 615 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79764N, 105.36021W. WGS 1984 Elev. 2378 m. Spikelets pendant, lemmas soft hairy. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, with: Dieteria bigelovii, Helianthus pumilis, and Heterotheca villosa.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3181. 31-Jul-2023

  3182   

Euphorbia brachycera.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Euphorbiaceae

Euphorbia brachycera Engelm.  Horned Spurge.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 620 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79777N, 105.3602W. WGS 1984 Elev. 2390 m. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, with: Dieteria bigelovii, Helianthus pumilis, Heterotheca villosa, and Bromus lanatipes.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3182. 31-Jul-2023

  3183   

Muhlenbergia montana.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Muhlenbergia montana (Nutt.) Hitchc.  Mountain Muhly.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 620 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79765N, 105.36036W. WGS 1984 Elev. 2386 m. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, with: Dieteria bigelovii, Helianthus pumilis, Heterotheca villosa, Euphorbia brachycera, and Bromus lanatipes.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3183. 31-Jul-2023

  3183.1   

Polygonum sp.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Polygonum douglasii Greene.  Douglas Knotweed.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 620 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79765N, 105.36036W. WGS 1984 Elev. 2386 m. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, with: Dieteria bigelovii, Helianthus pumilis, Heterotheca villosa, Euphorbia brachycera, and Bromus lanatipes.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3183.1 31-Jul-2023


Full Size ImageColl. No. 3184, Orobanche fasciculata.  
3184   

Orobanche fasciculata.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Orobanchaceae

Orobanche fasciculata Nutt.  Clustered Broomrape.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 635 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79771N, 105.36041W. WGS 1984 Elev. 2394 m. Several plants between two Cercocarpus montanus, with a few Eriogonum umbellatum, no Artemisia sp. nearby.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3184. 31-Jul-2023

  3185   

Polygonum douglasii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Polygonaceae

Polygonum douglasii Greene.  Douglas Knotweed.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 635 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79764N, 105.36041W. WGS 1984 Elev. 2398 m. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3185. 31-Jul-2023

  3186   

Mirabilis nyctaginea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Nyctaginaceae

Mirabilis nyctaginea (Michx.) MacMill.  Heartleaf Four O'Clock.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 635 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79757N, 105.36048W. WGS 1984 Elev. 2401 m. Infested with aphids, as usual with this plant. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, also collected here: Dieteria bigelovii, Orobanche fasciculata, Polygonum douglasii, and Muhlenbergia montana.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3186. 31-Jul-2023

  3187   

Symphyotrichum porteri.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Symphyotrichum porteri (A. Gray) G.L. Nesom.  Smooth White Aster.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 640 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79732N, 105.36071W. WGS 1984 Elev. 2417 m. Few plants, flowers beginning to open. Lightly shaded floor of gulch.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3187. 31-Jul-2023

  3188   

Thinopyrum intermedium Elymus lanceolatus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Thinopyrum intermedium (Host) Barkworth & D.R. Dewey.  Intermediate Wheatgrass.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 660 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79748N, 105.36092W. WGS 1984 Elev. 2422 m. Strongly rhizomatous, glumes tough, tip small offset mucro. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, also collected here: Artemisia ludoviciana, Symphyotrichum porteri, Allium cernuum and Muhlenbergia montana.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3188. 31-Jul-2023

Coll. No. 3188, characters observed: Perennial grass, 110 cm., strongly rhizomatous; Leaves, sheath, open, one side ciliate, other side chartaceous; ligule, membraneous, <1 mm., auricles, 1.3 mm., longer on one side, blade, 200 mm. × 4.5 mm. wide, ±flat, somewhat scabrous; Inflorescence, 1 per culm, >leaves, 2-sided spike, 190 mm. × 10 mm. wide; Spikelets, many, 19 mm. × 7 mm. wide, similar, borne singly, sessile; Glumes, lower, 8 mm., veins, #5, upper, 8.5 mm., <lowest floret, veins, #6, rounded, tough, veins scabrous + a few longer hairs, awns, 0, tip, offset; Florets, #6 (+1); Lemma, 11.2 mm., >glumes, indurate, tan center, green edges, veins, 5, hairy on right margin, awn, tip 0.2 mm, attached, end; Palea, 10 mm., <lemma (but not by much), membraneous, keel, ciliate, veins, green, tip, blunt; Anthers, 4.3 mm.


Full Size ImageColl. No. 3189, Allium cernuum.  
3189   

Allium cernuum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Alliaceae

Allium cernuum Roth.  Nodding Onion.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 660 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79749N, 105.36094W. WGS 1984 Elev. 2423 m. Flowers just beginning to open. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, also collected here: Artemisia ludoviciana, Symphyotrichum porteri, Muhlenbergia montana, and Thinopyrum intermedium.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3189. 31-Jul-2023


Full Size ImageColl. No. 3190, Artemisia ludoviciana ssp. incompta.  
3190   

Artemisia ludoviciana.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Artemisia ludoviciana Nutt. ssp. incompta (Nutt.) D. D. Keck.  White Sagebrush.

Guy Gulch, Jefferson County, Colorado. Southwest side of County Road 70 and the gulch, 660 m. northwest of Centennial Ranch, 12.8 km. northwest of the GNIS location of Golden. 39.79756N, 105.36092W. WGS 1984 Elev. 2422 m. Small plants, leaves deeply lobed, involucres small, in flower. Sunny southeast-facing rocky slope, north ridge above small gulch tributary to Guy Gulch, also collected here: Symphyotrichum porteri, Allium cernuum, Muhlenbergia montana, and Thinopyrum intermedium.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3190. 31-Jul-2023

 

Locations: Munich.
Full Size ImageMarienplatz, Munich
Full Size ImageRathaus-Glockenspiel in Marienplatz, Munich.  

 

Saturday, 5 August 2023

Munich

Full Size Image
Hofbrauhaus in Munich
Full Size Image
Brunch in the Hofbrauhaus, Munich.

 
Full Size ImageTrain to Fussen from Munich, via Buchloe.  

 

Sunday, 6 August 2023

Munich to Fussen

 

Locations: Fussen. Lech River. Neuschwanstein Castle.
Full Size ImageOur first view of the Neuschwanstein from near our apartment in Horn.
Full Size ImageView down river from the bridge over the Lech River.  

 

Monday, 7 August 2023

Horn, Fussen

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View down river from the bridge over the Lech River.
Full Size Image
Commemoration of French attack on Fussen.
Full Size Image
Frische Waffeln in Fussen, one cinnamon, the other powdered sugar.
Full Size Image
High castle in Fussen.

 

Locations: Neuschwanstein Castle.
Full Size ImageView from near the castle.
Full Size ImageIan, Nacho, Nico, Rachel Cheryl, and Sofia.  

 

Tuesday, 8 August 2023

Neuschwanstein Castle

Full Size Image
Tom and Cheryl
Full Size Image
Neuschwanstein Castle from the Marienbrucke.
Full Size Image
The Alpsee

Locations: Neuschwanstein Castle. Schwangau.
Full Size ImageThe Schloss Neuschwanstein seen from Schwangau.
Full Size ImageTom, Cheryl, Nacho, Rachel, Ian, Nico, and Sofia.  

 

Schwangau

Full Size Image
Felix Mezei with his Lego model of Neuschwanstein castle.

 

Locations: Fussen.
Full Size ImageReichenstrasse, the main street of Fussen.  

 

Wednesday, 9 August 2023

Fussen


Full Size ImageUrtica dioica ssp. pubescens does not sting.  
   

Locations: Schwangau.
Full Size ImageView across Schwangau from Kurpark.  

 

Returned bikes to Schwangau.

 

Locations: Gunzburg.
Full Size ImageAfter dinner photo. We ate at the Kebab place on the left.  

 

Thursday, 10 August 2023

Fussen to Gunzburg

 

Locations: Gunzburg.
Full Size ImageNico at the entrance to Legoland.
Full Size ImageEnd of the Jungle Adventure ride.  

 

Friday, 11 August 2023

Legoland

Full Size Image
Ice cream break.

 

Locations: Gunzburg. Ulm.
Full Size ImageDanube River in Ulm.
Full Size ImagePlaza and cathedral with tallest steeple.  

 

Saturday, 12 August 2023

To Ulm to do laundry.

Full Size Image
Restaurants in the former fishermans' quarters.
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Former fishermans' quarters.
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Sofia, Rachel, Nacho, and Nico.
Full Size Image
Cheryl in the main plaza of Gunzburg.

 
Full Size ImageRoter Flitzer, historic rail bus in Stuttgart
Full Size ImageTrain sign announcing Trier and Schweich  

 

Sunday, 13 August 2023

Gunzburg to Pfalzel

Locations: Pfalzel.
Full Size ImageInterior of our house in Pfalzel.
Full Size ImageCheryl in the doorway of our house.  

 

Pfalzel

Full Size Image
Cheryl and Nico in the window.

 

Locations: Schweich.
Full Size ImageThe Stefan Andres fountain.
Full Size ImageRachel and family at the Schweich city sign.  

 

Monday, 14 August 2023

A visit to Schweich.

Full Size Image
Entrance to Schweich.
Full Size Image
St. Christopher on the Moselle River bridge "Carry us on the stream of life."
Full Size Image
Tom and Cheryl at the Schweich city sign.

Locations: Schweich.
Full Size ImageInterpretive panel about St. Martin Holy Way.
Full Size Image450 Years, Parish St. Martin Schweich  

 
Full Size Image
Inside St. Martin church.
Full Size Image
St. Martin Church in Schweich.
Full Size Image
Flags for Schweich, the European Union, and Germany.
 

 

Locations: Pfalzel.
Full Size ImageNarrow street in Pfalzel.
Full Size ImageView from bridge over Moselle River.  

 

Tuesday, 15 August 2023

Down day arounf Pfalzel.

Full Size Image
Carex in a window box.

 

Locations: Trier.
Full Size ImageOur boat for the river cruise.  

 

Wednesday, 16 August 2023

Boat trip up the Moselle and Saar River.

Locations: Moselle River. Saar River.
Full Size ImagePassing a scrap barge.
Full Size ImageThe scrap boat enters the lock behind us.  

 

Trier to Saarburg

Full Size Image
Village along the Moselle River.
Full Size Image
Entering the mouth of the Saar River.
Full Size Image
Entering the lock on the Saar River.
Full Size Image
Vinyards along the Saar River.
Full Size Image
Looking downstream, Saarkanal on left, Saar River on the right.
Full Size Image
Cheryl and Ian.

Locations: Saarburg.
Full Size ImageVinyards on the outskirts of Saarburg.
Full Size ImageComing into Saarburg.  

 

Saarburg

Full Size Image
Saarburg Castle.
Full Size Image
Narrow street in Saarburg.
Full Size Image
Waterfall and water-powered wheels in Saarburg.
Full Size Image
Restaurants along the stream.
   

Saarburg to Trier

 

Locations: Trier.
Full Size ImageDreikonigenhaus.
Full Size ImagePorta Negra  

 

Thursday, 17 August 2023

Pfalzel to Frankfurt.

 

Locations: Frankfurt.
Full Size ImageWedding party in old town hall.
Full Size ImageLunch in the Apple Wine district.  

 

Friday, 18 August 2023

Day in Frankfurt.

Full Size Image
Lunch in the Apple Wine district.

   

 

Saturday, 19 August 2023

Frankfurt to Golden

 

Locations: Colorado School of Mines Survey Field.  

 

Sunday, 27 August 2023

 

Full Size ImageColl. No. 3191, Artemisia ludoviciana ssp. ludoviciana.  
3191   

Pseudognaphalium, maybe P. macounii.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Artemisia ludoviciana Nutt. ssp. ludoviciana.  White Sagebrush.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Southeast corner of Survey Field, 2.45 km. (geodesic) south of the GNIS location of Golden 39.73354N, 105.21837W. WGS 1984 Elev. 1819 m. Perennial herb, rhizomatous, not woody, infl. a narrow panicle, leaves entire. Highest mixed grass prairie near Rocky Mountain Front Range scarp, also nearby: Asclepias pumila, Ambrosia psilostachya, Artemisia dracunculus, Liatris punctata, and Evolvulus nuttallianus.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3191. 27-Aug-2023


Full Size ImageColl. No. 3192, Eriogonum effusum.  
3192   

Eriogonum effusum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Polygonaceae

Eriogonum effusum Nuttall, Proc. Acad. Nat. Sci. Philadelphia. 4: 15. 1848.  Spreading Buckwheat.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Top of slope overlooking an unnamed stream to the northwest, southeast quadrant of the Survey Field, 2.36 km. (geodesic) south of the GNIS location of Golden. 39.73432N, 105.21896W. WGS 1984 Elev. 1826 m. Leaves withered. Highest mixed grass prairie near Rocky Mountain Front Range scarp, also nearby: Gutierrezia sarothrae, Senecio spartioides, and Cercocarpus montanus.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 3192. 27-Aug-2023

  3193   

Gutierrezia sarothrae.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Gutierrezia sarothrae (Pursh) Britton & Rusby.  Broom Snakeweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Top of northwest-facing slope overlooking an unnamed stream to the northwest, southeast quadrant of the Survey Field, 2.36 km. (geodesic) south of the GNIS location of Golden. 39.73434N, 105.21897W. WGS 1984 Elev. 1820 m. Flowers just beginning to open. Highest Great Plains mixed grass near Rocky Mountain Front Range scarp, also nearby: Senecio spartioides, Eriogonum effusum, and Cercocarpus montanus.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3193. 27-Aug-2023

  3194   

Saponaria officinalis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Caryophyllaceae

Saponaria officinalis L.  Bouncingbet.

Colorado School of Mines Survey Field, Jefferson County, Colorado. In a former oxbow of an unnamed creek in the southeast quadrant of the Survey Field, 2.28 km. (geodesic) south of the GNIS location of Golden. 39.73499N, 105.21948W. WGS 1984 Elev. 1806 m. Large patch in a larger patch of Bromus inermis. Colorado Noxious Weed List B.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 3194. 27-Aug-2023


Full Size ImageColl. No. 3195, Liatris punctata.  
3195   

Liatris punctata.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Liatris punctata Hook.  Dotted Blazing Star.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Small divide between two unnamed streams, southeast quadrant of Survey Field, 2.23 km. (geodesic) south of the GNIS location of Golden. 39.73546N, 105.2205W. WGS 1984 Elev. 1810 m. Highest Great Plains at Rocky Mountain Front Range scarp, more or less disturbed mixed grass, where some quarrying has occurred, also collected here: Cleomella serrulata, Salsola tragus and Eriocoma hymenoides.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 3195. 27-Aug-2023


Full Size ImageColl. No. 3196, Cleomella serrulata.  
3196   

Cleomella serrulata.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Cleomaceae

Cleomella serrulata (Pursh) Roalson & J. C. Hall.  Rocky Mountain Bee Plant.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Small divide between two unnamed streams, southeast quadrant of Survey Field, 2.23 km. (geodesic) south of the GNIS location of Golden. 39.73543N, 105.22054W. WGS 1984 Elev. 1812 m. Highest Great Plains at Rocky Mountain Front Range scarp, edge of disturbed area, where some quarrying has occurred, also collected here: Liatris punctata, Salsola tragus and Eriocoma hymenoides.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3196. 27-Aug-2023


Full Size ImageColl. No. 3197, Salsola tragus.  
3197   

Salsola, maybe S. tragus?

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Salsola tragus L.  Tumbleweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Small divide between two unnamed streams, southeast quadrant of Survey Field, 2.23 km. (geodesic) south of the GNIS location of Golden. 39.73542N, 105.22058W. WGS 1984 Elev. 1813 m. Highest Great Plains at Rocky Mountain Front Range scarp, disturbed area of limestone mining, also collected here: Liatris punctata, Cleomella serrulata and Eriocoma hymenoides.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3197. 27-Aug-2023


Full Size ImageColl. No. 3198, Symphyotrichum ericoides.  
3198   

Symphyotrichum ericoides.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Symphyotrichum ericoides (Linnaeus) G. L. Nesom.  White Heath Aster.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Bank of unnamed creek, near southern boundary of the southeast quadrant of Survey Field, 2.49 km. (geodesic) south of the GNIS location of Golden. 39.73319N, 105.22078W. WGS 1984 Elev. 1822 m.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3198. 27-Aug-2023

 

Locations: Clear Creek Canyon Park. Welch Ditch.  

 

Tuesday, 29 August 2023

Looking for hops along the Welch Ditch.

Other articles:
• Welch Ditch:  12985;
Full Size ImageColl. No. 3199, Humulus neomexicanus
Full Size ImageColl. No. 3199, Humulus neomexicanus.  

3199   

Humulus sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Cannabaceae

Humulus neomexicanus (A. Nelson & Cockerell) Rydb.  New Mexican Hops.

Welch Ditch, Jefferson County, Colorado. Mouth of Clear Creek Canyon, hill side of Welch Ditch, near junction of climbing access trail and at a gate formerly used to close access to the trail, 3.39 km. (geodesic) west of the GNIS location of Golden. 39.74937N, 105.25052W. WGS 1984 Elev. 1717 m. Nearly all above the flume, small amount below, with Clematis ligusticifolia, Ribes cereum, Holodiscus dumosus, and Brickellia californica. GPS coordinates place collection on the Peaks to Plains Trail about 25 m. southwest of actual location, perhaps because of the steepness of the cliffs here. One of three collections made along the Welch Ditch on this date.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3199. 29-Aug-2023


Full Size ImageColl. No. 3200, Humulus neomexicanus
Full Size ImageColl. No. 3200, Humulus neomexicanus
Full Size ImageColl. No. 3200, Humulus neomexicanus.  
3200   

Humulus sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Cannabaceae

Humulus neomexicanus (A. Nelson & Cockerell) Rydb.  New Mexican Hops.

Welch Ditch, Jefferson County, Colorado. Mouth of Clear Creek Canyon, beside the flume of the Welch Ditch, 2.53 km. (geodesic) west southwest of the GNIS location of Golden. 39.74679N, 105.24832W. WGS 1984 Elev. 1717 m. Sunny southwest-facing site, upper side of the flume, in a small steep gulch, with Holodiscus dumosus, and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3200. 29-Aug-2023


Full Size ImageColl. No. 3201, Humulus neomexicanus.  
3201   

Humulus sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Cannabaceae

Humulus neomexicanus (A. Nelson & Cockerell) Rydb.  New Mexican Hops.

Welch Ditch, Jefferson County, Colorado. Mouth of Clear Creek Canyon, along the Welch Ditch in a small steep gulch, 2.55 km. (geodesic) west southwest of the GNIS location of Golden. 39.74466N, 105.2486W. WGS 1984 Elev. 1725 m. Upper side of flume, wetter site, edge of Douglas fir and water birch. GPS coordinates inaccurate due to cliffs in the canyon; actual location about 80 meters to the northeast. One of three collections of hops made along the ditch this day.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3201. 29-Aug-2023

Locations: Golden History Park.  

 

Golden History Park


Full Size ImageColl. No. 3202, Ambrosia trifida.  
3202   

Ambrosia trifida

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Ambrosia trifida L.  Giant Ragweed.

Golden History Park, Jefferson County, Colorado. West end of Golden History Park, at the western entrance gate, 395 m. west of the GNIS location of Golden. 39.75469N, 105.22556W. WGS 1984 Elev. 1733 m. Most likely native to Golden, but found in an area of planted, non-native, vegetation.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3202. 29-Aug-2023


Full Size ImageColl. No. 3203, Chenopodium album.  
3203   

Atriplex hortensis

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Chenopodium album L.  Lambsquarters.

Golden History Park, Jefferson County, Colorado. West end of Golden History Park, at the western entrance gate, 395 m. west of the GNIS location of Golden. 39.75466N, 105.22554W. WGS 1984 Elev. 1733 m. Apparently naturalized, found in an area of native and non-native vegetation.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3203. 29-Aug-2023


Full Size ImageColl. No. 3204, Humulus lupulus.  
3204   

Humulus sp.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Cannabaceae

Humulus lupulus L.  Common Hops.

Golden History Park, Jefferson County, Colorado. Escaping the cultivated demonstration garden at the Golden History Park, adjacent to 11th Street, about 290 m. west of the GNIS location of Golden. 39.75507N, 105.22446W. WGS 1984 Elev. 1733 m.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3204. 29-Aug-2023

 

Locations: Welch Ditch.  

 

Wednesday, 30 August 2023

Welch Ditch


Full Size ImageColl. No. 3205, Humulus neomexicanus  
3205   

Humulus lupulus ssp. neomexicana. Combined with Coll. No. 3199.

Other articles:
• Golden Checklist Flora:  Froelichia gracilis;
Full Size ImageColl No. 3206, Froelichia gracilis.
Full Size ImageColl No. 3206, Froelichia gracilis.  

3206   

Froelichia gracilis.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Amaranthaceae

Froelichia gracilis (Hook.) Moq.  Slender Snakecotton.

Welch Ditch, Jefferson County, Colorado. Mouth of Clear Creek Canyon, in loose gravel and rocks between cliff and the flume of Welch Ditch, 2.60 km. (geodesic) west southwest of the GNIS location of Golden. 39.74753N, 105.24967W. WGS 1984 Elev. 1784 m. Upper side of flume only, not seen below. Only plant growing here.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3206. 30-Aug-2023

Full Size Image
Coll No. 3206, Froelichia gracilis.
Full Size Image
Coll. No. 3206, Froelichia gracilis.

 

Other articles:
• (New) Social Trail:  at the bottom;

Locations: Schweich Hill.
Full Size ImageLower end of new social trail.  

 

Tuesday, 5 September 2023

Schweich Hill

 

Literature Cited:
- Primack, Richard B., and Carina Terry, 2021.

Other articles:
• Social Trail (Arapahoe to N. Rubey):   at drain;
• (New) Social Trail:  near middle;  near middle;

Locations: Schweich Hill.  

 

Wednesday, 6 September 2023

Schweich Hill, and review of Ailanthus altissima and Elaeagnus angustifolium.

Full Size Image
Middle of new social trail, looking uphill.
Full Size Image
Middle of new social trail, looking downhill.
Full Size Image
Grate off.

Full Size ImageColl. No. 3206.5, Cenchrus longispinus.  
3206.5   

Cenchrus longispinus.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Cenchrus longispinus (Hack.) Fern.  Longspine Sandbur.

DeLong Park (City of Golden), Jefferson County, Colorado. In planted native grass beds, along 23rd Street, opposite Vernon Drive, 1.72 km. southeast of the GNIS location of Golden. 39.74893N, 105.20797W. WGS 1984 Elev. 1765 m. Annual grass, collected in its second growing season at this site, suggesting it is naturalized here. Native to Colorado, but usually found in sandy habitats. Not previously collected at any other location in or near Golden; unclear whether this grass was previously here, brought in with the soil amendment, or was a contaminant in the seed mix. DeLong Park was a private residence that was left fallow for a number of years, then converted to a city park in 2021-2022.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3206.5 7-Sep-2023

 

Locations: Guy Gulch.  

 

Friday, 8 September 2023

Guy Gulch.

  3207   

Symphyotrichum porteri.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Symphyotrichum porteri (A. Gray) G.L. Nesom.  Smooth White Aster.

Guy Gulch, Jefferson County, Colorado. Work or parking area in front of ranch sheds, 40 m. southeast of the Centennial Ranch house, 15.8 km. (geodesic) northwest of Golden. 39.79451N, 105.35384W. WGS 1984 Elev. 2350 m. With Dieteria bigelovii.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3207. 8-Sep-2023

  3208   

Dieteria bigelovii.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman.  Bigelow's Tansy Aster.

Guy Gulch, Jefferson County, Colorado. Work or parking area in front of ranch sheds, 40 m. southeast of the Centennial Ranch house, 15.8 km. (geodesic) northwest of Golden. 39.79451N, 105.35384W. WGS 1984 Elev. 2350 m. With Symphyotrichum porteri.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3208. 8-Sep-2023


Full Size ImageColl. No. 3209, Humulus lupulus.  
3209   

Humulus neomexicanus.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cannabaceae

Humulus lupulus L.  Common Hops.

Guy Gulch, Jefferson County, Colorado. In a culvert with flowing water on the northeast side of County Road 70, 35 m. south of the Centennial Ranch house, 12.2 km. (geodesic) west northwest of the GNIS location of Golden. 39.79445N, 105.35403W. WGS 1984 Elev. 2351 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3209. 8-Sep-2023


Full Size ImageColl. No. 3210, Cirsium arvense.  
3210   

Cirsium arvense.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Cirsium arvense (L.) Scop.  Canada Thistle.

Guy Gulch, Jefferson County, Colorado. Broken shade up a small gulch 30 m. northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79491N, 105.35385W. WGS 1984 Elev. 2357 m. Colorado Noxious Weed List B. EDDMapS Record ID 11926494.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3210. 8-Sep-2023


Full Size ImageColl. No. 3211, Agrostis stolonifera Agrostis gigantea.  
3211   

Fine, rhizomatous grass.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Agrostis stolonifera L.  Creeping Bentgrass.

Guy Gulch, Jefferson County, Colorado. Shaded streamside 35 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79494N, 105.3538W. WGS 1984 Elev. 2362 m. Fine grass, rhizomatous stoloniferous.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3211. 8-Sep-2023

Agrostis gigantea, Jan Wingate, 4/24/2024.


Full Size ImageColl. No. 3212, Lathyrus latifolia.  
3212   

Lathyrus latifolius.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Fabaceae

Lathyrus latifolius L.  Perennial Pea Vine.

Guy Gulch, Jefferson County, Colorado. In the gulch about 45 m. behind and northwest of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79512N, 105.35383W. WGS 1984 Elev. 2364 m. In the open beside stream, also here: Cirsium arvense, Campanula rapunculoides, Arctostaphylos uva-ursi, and Agrostis stolonifera.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3212. 8-Sep-2023

  3213   

Arctostaphylos uva-ursi.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Ericaceae

Arctostaphylos uva-ursi (L.) Sprengel.  Bearberry.

Guy Gulch, Jefferson County, Colorado. In the gulch about 45 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79503N, 105.35387W. WGS 1984 Elev. 2366 m. Base of small Ponderosa pine, also here: Cirsium arvense, Campanula rapunculoides, Lathyrus latifolia, and Agrostis stolonifera.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3213. 8-Sep-2023


Full Size ImageColl. No. 3214, Campanula rapunculoides.  
3214   

Campanula rapunculoides.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Campanulaceae

Campanula rapunculoides L.  Rampion Bellflower.

Guy Gulch, Jefferson County, Colorado. In the gulch about 55 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79517N, 105.35368W. WGS 1984 Elev. 2369 m. Nearly all vegetative, beside stream, rooted in moss. EDDMapS Record ID 11942190.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3214. 8-Sep-2023


Full Size ImageColl. No. 3215, Carex aurea.  
3215   

Carex aurea.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Cyperaceae

Carex aurea Nutt.  Golden Sedge.

Guy Gulch, Jefferson County, Colorado. In the gulch about 75 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79538N, 105.35361W. WGS 1984 Elev. 2373 m. In ponderosa pine duff beside creek.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3215. 8-Sep-2023

  3216   

Epilobium ciliatum.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Onagraceae

Epilobium ciliatum Raf.  Fringed Willowherb.

Guy Gulch, Jefferson County, Colorado. In the gulch about 140 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79589N, 105.35334W. WGS 1984 Elev. 2386 m. Rooted in stream.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3216. 8-Sep-2023

  3217   

Heliomeris multiflora.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Heliomeris multiflora Nutt. var. multiflora.  Showy Golden Eye.

Guy Gulch, Jefferson County, Colorado. Southeast-facing hill slope abobe the gulch about 285 m. behind and northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79714N, 105.35275W. WGS 1984 Elev. 2427 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3217. 8-Sep-2023

 

Other articles:
• Magpie Gulch Trail:   social train down;

Locations: New Loveland Mine Park.
Full Size ImageUpper end of the shortcut social trail.  

 

Sunday, 10 September 2023

 

 

Other articles:
• Social Trail (N. Wash. OS):   at new social trail;
• (New) Social Trail:  at top;

Locations: Schweich Hill.
Full Size ImageUpper end of the new social trail.  

 

Tuesday, 12 September 2023

Schweich Hill, mostly to see the Brickellia eupatorioides.


Full Size ImageGeneral location of Coll. No. 3218, Brickellia eupatorioides.
Full Size ImageColl. No. 3218, Brickellia eupatorioides.  
3218   

Brickellia eupatorioides.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Brickellia eupatorioides (L.) Shinners.  False Boneset.

Schweich Hill, Jefferson County, Colorado. Near the northern border of Schweich Hill, in the eastern section that was mowed by neighbors for about twenty years, 1.75 km. (geodesic) north northwest of the GNIS location of Golden. 39.76885N, 105.23204W. WGS 1984 Elev. 1798 m. 20-30 plants mostly concentrated in a 10 m x 10 m patch, scattered in Bromus inermis with Artemisia dracunculus, Ericameria nauseosa var. graveolens, and Liatris punctata. Mowing occurred from approximately 2007 to 2018. Other collections may identify this location as “North Washington Open Space.”

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3218. 12-Sep-2023

   

Since the adjoining neighbors have stopped mowing this area, the Bromus inermis “smooth brome” has gotten larger. There are also several native subshrubs that are competing with the smooth brome, including: Ambrosia psilostachya, Artemisia dracunculus, Artemisia ludoviciana, Heterotheca villosa, Liatris punctata, Symphyotrichum ericoides, Pediomelum tenuiflorum, and, of course, the shrub Ericameria nauseosa var. graveolens.

  3219   

Artemisia ludoviciana.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Artemisia ludoviciana Nutt. ssp. ludoviciana.  White Sagebrush.

Schweich Hill, Jefferson County, Colorado. Near the western border of Schweich Hill, about mid-way up the slope, 1.81 km. (geodesic) north northwest of the GNIS location of Golden. 39.76851N, 105.23388W. WGS 1984 Elev. 1819 m. This area was graded then revegetated circa 2006, though this taxon is more likely adventive rather than revegetated. Other collections may identify this location as “North Washington Open Space.”

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3219. 12-Sep-2023

  3220   

Ambrosia acanthocarpa

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Ambrosia psilostachya DC.  Western Ragweed.

Schweich Hill, Jefferson County, Colorado. Top of hill, center of parcel, 1.77 km. (geodesic) north northwest of the GNIS location of Golden. 39.76853N, 105.23302W. WGS 1984 Elev. 1821 m. Plants of short stature. Southwest aspect, top of hill, gravel-covered upturned Laramie and Arapahoe Formations. Other collections identify this location as “North Washington Open Space.”

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3220. 12-Sep-2023

 

Other articles:
• Eagle Ridge Drive:   at park;
Full Size ImageEpilobium hirsutum in fall after being sprayed.  

 

Wednesday, 13 September 2023

 

 

Locations: Colorado School of Mines Survey Field.  

 

Sunday, 17 September 2023

Colorado School of Mines Survey Field

  3221   

Gutierrezia sarothrae.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Gutierrezia sarothrae (Pursh) Britton & Rusby.  Broom Snakeweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northwest corner of the Survey Field, highest Great Plains at base of Rocky Mountain Front Range scarp, 1.92 km. southwest of the GNIS location of Golden 39.73965N, 105.22997W. WGS 1984 Elev. 1863 m. With Bouteloua gracilis, Bromus inermis, Ambrosia psilostachya, and Helianthus pumilus.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 3221. 17-Sep-2023


Full Size ImageColl. No. 3222, Solidago nemoralis ssp. decemflora.  
3222   

Solidago sp.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Solidago nemoralis Aiton ssp. decemflora (de Candolle) Brammall ex Semple.  Gray Goldenrod.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northwest corner of Survey Field, north-facing slope of small gulch, 1.97 km. southwest of the GNIS location of Golden. 39.73902N, 105.22941W. WGS 1984 Elev. 1873 m. Highest Great Plains at base of Rocky Mountain Front Range scarp, with Juniperus scopulorum and Pinus ponderosa.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 3222. 17-Sep-2023

  3223   

Ambrosia psilostachya.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Ambrosia psilostachya DC.  Western Ragweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Mixed grass prairie, highest Great Plains at the Rocky Mountain Front Range scarp, northwest corner of the Survey Field, 2.02 km. southwest of the GNIS location of Golden. 39.73856N, 105.22933W. WGS 1984 Elev. 1873 m. Very similar to Coll. No. 3224, but much more tall. Common plant of the plains of Colorado, especially up against the Front Range, also found at lower elevations on the west slope.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3223. 17-Sep-2023

  3224   

Ambrosia, more compact than the previous, A. acanthicarpa?

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Ambrosia acanthicarpa Hook.  Flat-Spine Burr-Ragweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Mixed grass prairie, highest Great Plains at the Rocky Mountain Front Range scarp, northwest corner of the Survey Field, 2.02 km. southwest of the GNIS location of Golden. 39.73854N, 105.22936W. WGS 1984 Elev. 1883 M. Very similar to Coll. No. 3223, but more compact plant. Common plant of the plains of Colorado, especially up against the Front Range, also found at lower elevations on the west slope.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3224. 17-Sep-2023

  3225   

Andropogon gerardii.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Andropogon gerardii Vitman.  Big Bluestem.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northwest corner of the Survey Field, mixed grass prairie, highest Great Plains at the Rocky Mountain Front Range scarp, 2.04 km. southwest of the GNIS location of Golden. 39.73829N, 105.22939W. WGS 1984 Elev. 1885 m.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3225. 17-Sep-2023

  3226   

Ericameria nauseosa var. graveolens.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. graveolens (Nutt.) Reveal & Schuyler.  Goldy-Locks.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northwest corner of the Survey Field, mixed grass prairie, highest Great Plains at the Rocky Mountain Front Range scarp,2.09 km. (geodesic) south southwest of the GNIS location of Golden. 39.7379N, 105.22917W. WGS 1984 Elev. 1884 m. Gravelly open fields with Rhus trilobata, Artemisia dracunculus, Prunus virginiana, and Thinopyrum intermedium, but beside a small perennial stream that is probably overflow from a nearby city water tank.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3226. 17-Sep-2023

  3227   

Large needle-grass, maybe Achnatherum robustum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Poaceae

Eriocoma robusta (Vasey) Romasch.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northwest corner of the Survey Field, mixed grass prairie, highest Great Plains at the Rocky Mountain Front Range scarp,2.09 km. (geodesic) south southwest of the GNIS location of Golden. 39.73734N, 105.22887W. WGS 1984 Elev. 1884 m. Gravelly open fields with Rhus trilobata, Artemisia dracunculus, A. ludoviciana, Ericameria nauseosa var. graveolens, Prunus virginiana, and Thinopyrum intermedium. iNaturalist Observation 183708052.

Collected by permit: Colorado School of Mines, 2023, issued: May 9, 2023, to: Tom Schweich.

Tom Schweich 3227. 17-Sep-2023

 

Locations: Magpie Gulch.  

 

Tuesday, 19 September 2023

Magpie Gulch

  3228   

Heliomeris multiflora.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Asteraceae

Heliomeris multiflora Nutt.  Showy Golden Eye.

Magpie Gulch, Jefferson County, Colorado. Mouth of Magpie Gulch on the southeast flank of Mount Galbraith, 1.72 km. (geodesic) west northwest of the GNIS location of Golden. 39.75947N, 105.24053W. WGS 1984 Elev. 1829 m. Floor of gulch, full sun and high shade, with Symphyotrichum porteri, Cynoglossum officinale, Hypericum perforatum, Mentha spicata, Monarda fistulosa, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3228. 19-Sep-2023

  3229   

Symphyotrichum porteri.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Asteraceae

Symphyotrichum porteri (A. Gray) G.L. Nesom.  Smooth White Aster.

Magpie Gulch, Jefferson County, Colorado. Mouth of Magpie Gulch on the southeast flank of Mount Galbraith, 1.72 km. (geodesic) west northwest of the GNIS location of Golden. 39.75942N, 105.24058W. WGS 1984 Elev. 1831 m. Floor of gulch, full sun and high shade, with Heliomeris multiflora, Cynoglossum officinale, Hypericum perforatum, Mentha spicata, Monarda fistulosa, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich 3229. 19-Sep-2023

 

Locations: North Table Mountain.  

 

Tuesday, 26 September 2023

 

Other articles:
• North Table Mountain Trail:   at social trail;   at section line;
• Climbing Access Trail:  in climbing area;
• Spur Social Trail:   top of mesa;   at juniper;   along the trail;   at N Table Mtn Trl;

Locations: Golden. North Table Mountain. Schweich Hill.
Full Size ImageSocial trail that follows section line.  

 

Social trail down to Ridge Road, follows the section line in part.

Full Size Image
Condition of social trail to rim in 2023.
Full Size Image
View of Schweich Hill in September 2023.
Full Size Image
Brickellia californica im bloom.
Full Size Image
Rocky Mountain juniper on the rim of North Table Mountain.
Full Size Image
View of Schweich Hill from the rim of North Table Mountain in September 2023.
Full Size Image
View of Magpie Gulch from the rim of North Table Mountain.
Full Size Image
Raven on top of North Table Mountain.
Full Size Image
Downtown Golden from the top of North Table Mountain, September 2023.
Full Size Image
Climbing hardware left on cliffs.
Full Size Image
Climbing hardware left on cliffs.

   

 

Friday, 29 September 2023

Tucker Gulch and Schweich Hill.

Other articles:
• Golden Checklist Flora:  Fallopia baldschuanica;
• Tucker Gulch Trail:  just above bridge;
Full Size ImageView of Coll. No. 3230, Fallopia baldschuanica, from south.
Full Size ImageView of Coll. No. 3230, Fallopia baldschuanica, from north..  

3230   

Showy vine climbing into the Tucker Gulch Trail from adjacent private residence.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Polygonaceae

Fallopia baldschuanica (Regel) Holub.  Bukhara Fleeceflower.

Tucker Gulch (lower), Jefferson County, Colorado. Side yard of 405 Garden Glen Ct., Colden, CO. 39.7651N, 105.2249W. WGS 1984 Elev. 1765 m. Sprawling over a green ash (Fraxinus pennsylvanica Marshall) and fence for about 10 m., coming across onto the City of Golden Tucker Gulch Trail, no sign of rooting away from fence line. Also seen on top of Cemetery Hill (Gregory Drive), and 1000 19th Street. EDDMapS No. 11556331. iNaturalist Observation 185490713.

Collected by permit: City of Golden, 2023, issued: Mar 13, 2023, to: Tom Schweich.

Tom Schweich 3230. 29-Sep-2023

Full Size Image
Coll. No. 3230, Fallopia baldschuanica.
Full Size Image
Coll. No. 3230, Fallopia baldschuanica.
Full Size Image
Coll. No. 3230, Fallopia baldschuanica.

Full Size ImageBrickellia eupatorioides in fruit.  
 

Collected seed from Brickellia eupatorioides

Other articles:
• Social Trail (Arapahoe to N. Rubey):   at drain;
Full Size ImageGrate off.
Full Size ImageLocation of the missing grate; down in the drain.  

 

Monday, 2 October 2023

 

Other articles:
• Social Trail (Arapahoe to N. Rubey):   at drain;
Full Size ImageGrate off.  

 

Wednesday, 11 October 2023

Grate off of surge pond drain.

Other articles:
• Trail to Parkview Court:   at uphill;   at drain;

Locations: New Loveland Mine Park.
Full Size ImageSedimented drain from surge pond.  

 

Tuesday, 10 October 2023

Full Size Image
Trail widening caused by erosion.
 

 

Other articles:
• East Street:   at home made park;
Full Size Image“Home Made Park” in Tucker Gulch.  

 

Saturday, 21 October 2023

Bicycle ride to North Table Mountain Trailhead.

 

Other articles:
• Clear Creek Trail:   at Magpie Gl;   near entrance 9-N;
• Magpie Gulch Trail:   at junction;

Locations: Magpie Gulch. New Loveland Mine Park.
Full Size ImagePicnic in the Sensitive Area.  

 

Sunday, 22 October 2023

Walk downtown and up Clear Creek.

Full Size Image
The ignominious end of Magpie Gulch at Clear Creek.
Full Size Image
The new Coors mural and Castle Rock from New Loveland Mine Park.

 

Other articles:
• Social Trail (Arapahoe to N. Rubey):   at drain;
Full Size ImageThe surge pond grate is not bolted down.  

 

Wednesday, 15 November 2023

Grate on surge pond is not bolted down.

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Date and time this article was prepared: 5/10/2024 11:08:43 AM