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.

 

 

   

2016

 

 

 

Other articles: Tucker Gulch Trail near Cressman Gulch near Cressman Gulch at Salix Field Notes Coll. No. 1073, 16 Mar 2015. Coll. No. 1103, 11 May 2015
Full Size ImageSalix alba along Tucker Gulch.
Full Size ImageSalix alba removed from the creek in 2016.  

Saturday, February 6th

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Salix alba trunks along Tucker Gulch.
Went out to look at the tree-like willow in Tucker Gulch. Discovered that it has been removed from the creek. However there are still two trees beside the creek.

Literature Cited:
- Anonymous, 2016.

Other articles: California Highway 89 near US Hwy 395
Full Size ImageMap of road over Monitor Pass  

From the Nevada Appeal, 10 February 2016:
Completion of 17 1/2 miles of new highway which connects by a more direct route the county seats of Bridgeport in Mono County and Markleeville in Alpine County will be celebrated by the boards of supervisors of the two counties with a dedication ceremony Sunday, when the new road will be opened formally to traffic.

The new highway, built over tortuous mountain terrain, extends from US 395 north of Coleville in Mono County to the Ebbetts Pass Highway south of Markleeville in Alpine. It has been designated a portion of State Route 89.

Hitherto, the only feasible route between Bridgeport and Markleeville was via Gardnerville, 27 miles longer than the new route.

The highway will provide more direct access from southern California to the recreational areas in the vicinity of Markleeville and Lake Tahoe, and to Carson City.

 

 

Other articles: Golden Checklist Flora CoG trl. hds. North Table Mountain Trail near social trail at social trail near chg dir near switchback near switchback at social trail near rocks to parking at Peery Spur Social Trail below rim at scramble at base of rim below rim at N Table Mtn Trl Social Trail at NTM Trail
Full Size ImagePeery Drive trailhead of North Table Mountain Trail.
Full Size ImageSocial trail to Golden Cliffs Trailhead.  

Thursday, February 18th

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Southern end of North Table Mountain Trail.
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View of Golden to the south.
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The trail up from the switchback.
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Flat area on flank of North Table Mountain
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Social trail to rim of mesa.
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Bird
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North Table Mountain Trail follows an old road.
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Social trail below the rim.
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Social trail at the base of the rim.
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Two to three foot steps.
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Easy part of rock scramble.
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Old social trail.
 

 

 

Other articles: Easley Road at 44th at social trail North Table Loop near Golden Cliffs Trl near creek near creek below rim near social trail Social Trail along trail gr. fence old road w. end of bench e. end of bench near e. end of bench at Easley Field Notes Coll. No. 1276, 29 Jul 2015
Full Size ImageStart of social trail at Easley Road.
Full Size ImageEasley Road at CO Highway 58 on-ramp.  

Saturday, February 28th

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Social trail on top of fourth highway bench.
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Social trail up from Easley Road.
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West end of fourth highway terrace.
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The green fence, boundary of Jefferson County Open Space.
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North Table Loop climbs toward to the top of the mesa.
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North Table Loop climbs to the top of the mesa to the west.
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North Table Loop, with social trail below.
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North Table Loop, with downtown Denver in the distance.
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Main channel of stream just above rim.
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Small creek draining the mesa from the north.
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Small creek, with tussocks of grass, drains the mesa from the north.
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Location of Coll Nos. 1274-1276.
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Southern rim of North Table Mountain.
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Pediocactus simpsonii on North Table Mountain
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Habitat of Pediocactus simpsonii on North Table Mountain
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Coors 997 shoves a cut of loaded covered hoppers into the brewery.
North Table Mountain hike.

 

 

Other articles: North Table Loop at spur at outcrop North Table Mountain North Table Mountain Trail Near water tank at spur Social Trail at n tbl lp at social trail at n tbl mtn trl Tilting Mesa Trail at pile of rocks near pond at pond near pond near eph pond at piles of dirt near pond at Lichen Pk Trl
Full Size ImageLandslide below North Table Mountain Trail
Full Size ImageNorth end of Social Trail.  

Thursday, March 3rd

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Water-lain sediments between two basalt flows.
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Northern part of Social Trail.
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Junction of North Table Mountain Trail and social trail.
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The North Table Loop heads south.
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Lichen Peak Trail
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Small artificial ephemeral pool along south edge of scrapped area.
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Scrapped area, south side, looking west.
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Spoils piles, scrapped area in foreground.
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Artificial ephemeral pond; dam in right middleground.
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Ephemeral pool from south; artificial dam highlighted.
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Debris pile of prospect.
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Pit and debris pile at prospect.
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Ephemeral pond beside trail.
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Pond below dam, evidence of leakage.
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Prospect near Tilting Mesa Trail.
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Ephemeral pond near Tilting Mesa Trail.
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Northern part of scrapped area; spoils pile in left middleground.
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Spoils piles in scrapped area.
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Small ephemeral pond in disturbed area.
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Pond beside Tilting Mesa Trail.
North Table Mountain.

 

   

Monday, April 4th

 

Other articles: Colorado Highway 150 at Urraca Rd US Highway 160 in Cuchara Vy

Locations: Sierra Blanca. Spanish Peaks.
Full Size ImageSpanish Peaks south from US Highway 160.  

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Sierra Blanca east of Colorado Highway 150.
 

Other articles: Colorado Highway 150 near boundry

Locations: Great Sand Dunes National Park.
Full Size ImageSand dunes to the north of CO Highway 150.  

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Crossing of Medano Creek to access the sand dunes.
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View southwest from Great Sand Dunes to the San Juan Mountains
Great Sand Dunes National Park

 

   

Tuesday, April 5th

 

Other articles: Colorado Highway 15 Monte Vista National Wildlife Refuge

Locations: Monte Vista National Wildlife Refuge.
Full Size ImageMonte Vista National Wildlife Refuge  

Monte Vista National Wildlife Refuge

Other articles: County Line Road at Rio Grande

Locations: Rio Grande River. Rio Grande River. Rio Grande State Wildlife Area.
Full Size ImageRio Grande State Wildlife Area.  

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Rio Grande River at the Alamosa - Rio Grande County line.
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Rio Grande River at the Alamosa - Rio Grande County line.
Rio Grande State Wildlife Area. Closed February through July for nesting season.

Other articles: El Rancho Lane at hdqtrs

Locations: Alamosa National Wildlife Refuge. Rio Grande River.
Full Size ImageRio Grande River in the Alamosa National Wildlife Refuge  

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Rio Grande River in the Alamosa National Wildlife Refuge
Alamosa National Wildlife Refuge.

Other articles: Hansen Bluff Road at Hansen Bluff at Hansen Bluff

Locations: Hansen Bluff. Sierra Blanca.
Full Size ImageBlowing sand with Sierra Blanca in the background  

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San Luis Valley and the San Juan Mountains from Hansen Bluff
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Gopher snake sunning in the road at Hansen Bluff
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Big Slough of the Rio Grande River, the San Luis Valley and the San Juan Mountains
Hansen Bluff in Alamosa National Wildlife Refuge.

Other articles: US Highway 160 at Cole Park

Locations: Alamosa.
Full Size ImageD&RGW 169 on display at Cole Park in Alamosa  

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D&RGW 169 on display at Cole Park in Alamosa
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The Rio Grande River in downtown Alamosa.
 

Other articles: US Highway 285 at Russell Lakes

Locations: Russell Lakes State Wildlife Area.
Full Size ImageInstructions at Russell Lakes State Wildlife Area  

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Russell Lakes State Wildlife Area.
Russell Lakes State Wildlife Area.

Other articles: US Highway 285 Villa Grove

Locations: Villa Grove.
Full Size ImageUS Highway 285 north out of Villa Grove.  

 

 

 

Locations: Colorado School of Mines Survey Field.  

Saturday, April 9th

Colorado School of Mines, Survey Field, early spring, looking primarily for the Townsendia.

Other articles: Water Tank Road along the road
Full Size ImageEarly Spring habitat of Viola nuttallii and Alyssum simplex
Full Size ImageColl. No. 1301, Viola nuttallii  

1301  Viola nuttallii Pursh. Nuttall's Violet.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Along the access road to the City of Golden water tank, 210 m from Lookout Mountain Road, 2 km south southwest of the GNIS location of Golden. 39.7387N, 105.2284W. WGS 1984. Elev. 1870 m. South-facing slope of ditch, early-blooming perennial, grass is still very short.

  1302  Alyssum simplex Rudolphi. European Madwort.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Along the access road to the City of Golden water tank, 210 m from Lookout Mountain Road, 2 km south southwest of the GNIS location of Golden. 39.7387N, 39.7387E. WGS 1984 Elev. 1865 m. Small plants, on south-facing bank, early spring, grass still very short, with Viola nuttallii.

Other articles: Survey Field Road at draw
Full Size ImageHabitat of Leucocrinum montanum and Townsendia hookeri in the Survey Field.
Full Size ImageLeucocrinum montanum on an old alluvial ridge in the Survey Field.  

1303 
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Leucocrinum montanum on an old alluvial ridge in the Survey Field.
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Coll. No. 1303, Leucocrinum montanum
Leucocrinum montanum Nutt. ex A. Gray. Star Lily.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Center of Survey Field, 525 m south of Beverly Heights Park, 2.2 km south southwest of the GNIS location of Golden 39.7365N, 105.2261W. WGS 1984 Elev. 1873 m. South-facing slope of rocky older alluvium.

  1304  Field determination: Townsendia hookeri

Townsendia hookeri Beaman. Hooker's Townsend Daisy.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Center of Survey Field, 525 m south of Beverly Heights Park, 2.2 km south southwest of the GNIS location of Golden. 39.7366N, 105.2262W. WGS 1984 Elev. 1879 m. Scattered, uncommon at this location. South-facing slope of rocky older alluvium.

Coll. No. 1304, 9 April 2016, characters observed: Perennial, acaulescent, Leaves, narrowly oblanceolate, strigose; Head, sessile (or apparently so), 12 mm. × 10-12 mm. wide; Phyllaries, many series, 8 mm., outer hairy, tipped by a tuft of tangled cilia, inner, margins and tip ciliate, but not tangled; Rays, #25-30, corolla 10 mm., white, pappus bristles, 5 mm.; Disc flowers, corolla 4.5 mm., yellow, pappus, 6 mm., bristles.


Full Size ImageHead of Coll. No. 1305, Taraxacum, but T. officinale?
Full Size ImageColl. No. 1305, Taraxacum, but T. officinale?  
1305  Dandelion, large round head.

Taraxacum officinale F. H. Wigg. Common Dandelion.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Center of Survey Field, 525 m south of Beverly Heights Park, 2.2 km south southwest of the GNIS location of Golden. 39.7366N, 105.2262W. WGS 1984 Elev. 1870 m. One plant, selected because of very large, globose inflorescence.


Full Size ImageHead of Coll. No. 1306, Taraxacum officinale
Full Size ImageColl. No. 1306, Taraxacum officinale  
1306  Field identification: Dandelion.

Taraxacum officinale F. H. Wigg. Common Dandelion.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northern portion of Survey Field, 2 km south southwest of the GNIS location of Golden. 39.7379N, 105.2277W. WGS 1984 Elev. 1862 m. Numerous plants beside an ephemeral stream.


Full Size ImageBract(s) at base of inflorescence of Coll. No. 1307, Claytonia rosea
Full Size ImageColl. No. 1307, Claytonia rosea  
1307  Field determination: Claytonia lanceolata Pursh. Lanceleaf Springbeauty.

Windy Saddle Park, Jefferson County, Colorado. Lower slopes of Lookout Mountain, 2.23 km southwest of the GNIS location of Golden. 39.7371N, 105.2322W. WGS 1984 Elev. 1944 m. Numerous plants around edges of Rhus shrubs. Hillside above Colorado School of Mines Survey Field.

 

 

Locations: North Table Mountain Park.  

Tuesday, April 12th

North Table Mountain, Cottonwood Canyon to basalt quarry.

Other articles: Neighborhood Access Trail near trailhead
Full Size ImageHabitat of Coll. No. 1308, Chorispora tenella
Full Size ImageInflorescence of Coll. No. 1308, Chorispora tenella  

1308 
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Coll. No. 1308, Chorispora tenella
Field determination: Brassicaceae, something weedy(?)

Chorispora tenella (Pall.) DC. Crossflower.

North Table Mountain Park, Jefferson County, Colorado. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. 39.7736N, 105.1974W. WGS 1984 Elev. 1728 m. Possibly at a former home site.

Other articles: Neighborhood Access Trail near trailhead
Full Size ImageColl. No. 1309, Berberis repens
Full Size ImageColl. No. 1309, Berberis repens  

1309  Field determination: Berberis repens

Berberis repens Lindl. Creeping Barberry.

North Table Mountain Park, Jefferson County, Colorado. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. 39.774N, 105.1977W. WGS 1984 Elev. 1751 m. Few plants on strath above creek; many more plants at higher and drier locations.


Full Size ImageColl. No. 1310, Muscari botryoides  
1310  Field determination: Muscari botryoides, naturalized.

Muscari botryoides (L.) Mill. Common Grape Hyacinth.

North Table Mountain Park, Jefferson County, Colorado. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. 39.774N, 105.1977W. WGS 1984 Elev. 1748 m. Near a former home site, probably naturalized.

Literature Cited:
- Chen, Chia Jui, Meghan G. Mendenhall, and Billie L. Turner, 1994.

Other articles: Neighborhood Access Trail near trailhead near trailhead
Full Size ImageThermopsis rhombifolia, variety unknown, no fruit yet.  

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Thermopsis rhombifolia, variety unknown, no fruit yet.
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Habitat of Physaria vitulifera and Coryphantha sp. beside neighborhood trail.
Thermopsis rhombifolia variety unknown, no fruit yet, above the trail.

Other articles: Neighborhood Access Trail near trailhead
Full Size ImageHabitat of Coll. No. 1311, Leucocrinum montanum.  

1311  Field determination: Leucocrinum montanum

Leucocrinum montanum Nutt. ex A. Gray. Star Lily.

North Table Mountain Park, Jefferson County, Colorado. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 200 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. 39.7745N, 105.1972W. WGS 1984 Elev. 1766 m. Grassy slopes above the trail, but the grass is very short because it is still very early spring here; more common on slopes above.

Other articles: North Table Loop at quarry

Locations: North Table Mountain Park.
Full Size ImageThe basalt quarry on the south side of North Table Mountain.  

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Valley of Clear Creek opens onto the plains; Denver in right distance.
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North Table Loop below the south rim of North Table Mountain
Basalt quarry.

Other articles: North Table Loop along trail
Full Size ImageCorydalis aurea along the North Table Loop.
Full Size ImageHabitat of Corydalis aurea at base of rocks to right of daypack.  

Two small Corydalis aurea along the North Table Loop.

Other articles: North Table Loop east-facing slopes
Full Size ImageHabitat of Coll. No. 1312, Claytonia rosea above the North Table Loop.  

1312  Field determination: Claytonia rosea, basal leaves present at flowering.

Claytonia rosea Rydb. Rocky Mountain Springbeauty.

North Table Mountain Park, Jefferson County, Colorado. Along the North Table Loop, southeast side of North Table Mountain, approximately 1/2 km west of the Neighborhood Access Trail trailhead at Ridge Road and Ulysses Avenue, 2.6 km northeast of the GNIS location of Golden. 39.7738N, 105.2019W. WGS 1984 Elev. 1876 m. Basal leaves present at flowering. East to northeast-facing grassy slope.

 

 

Other articles: Plainview Road at Coal Ck

Locations: Ranson/Edwards Homestead Open Space Park.
Full Size ImageView upstream of Coal Creek.  

Thursday, April 14th.

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View downstream of Coal Creek.
Ranson Edwards Homestead Open Space Park, still very early Spring here.

Other articles: Plainview Road n. of Coal Ck.
Full Size ImageHabitat of Coll. No. 1313, Viola nuttallii in Ranson Edwards Homestead Open Space Park.  

1313  Field determination: Viola nuttallii

Viola nuttallii Pursh. Nuttall's Violet.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Southern section of park, 115 m north of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. 39.8796N, 105.2701W. WGS 1984 Elev. 1994 m. One of the earliest flowers in bloom here.

Other articles: Plainview Road n. of Coal Ck.  

1314  Field determination: Taraxacum officinale

Taraxacum officinale F. H. Wigg. Common Dandelion.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Southern section of park, 115 m north of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. 39.8796N, 105.2701W. WGS 1984 Elev. 1992 m. One of the earliest flowers in bloom, collected with Viola nuttallii.

Other articles: Plainview Road n. of Coal Ck.  

1315  Field determination: Townsendia hookeri

Townsendia hookeri Beaman. Hooker's Townsend Daisy.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Southern section of park, 360 m northwest of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. 39.8806N, 105.2731W. WGS 1984 Elev. 2016 m. Rocky alluvial terrace.


Full Size ImageFrasera speciosa beginning to bloom.
Full Size ImageUnknown Brassicaceae.
Full Size ImagePediocactus simpsonii in bloom at Ranson Edwards Homestead OSP.

Species Lists: Frasera speciosa  

Frasera speciosa beginning to send up a flowering stalk, and an unknown Brassicaceae.

Other articles: Plainview Road n. of Coal Ck.
Full Size ImageColl. No. 1316, Pinus ponderosa in Ranson Edwards Homestead Open Space Park.  

1316  Field determination: Pinus ponderosa.

Pinus ponderosa Laws. Ponderosa Pine.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Southern section of park, 400 m west northwest of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. 39.8804N, 105.2738W. WGS 1984 Elev. 2044 m. Upper slopes just below the railroad tracks.

 

 

Other articles: North Table Loop near quarry 20000 near Sea Cliffs North Table Mountain Trail at watercourse at spur Lichen Peak Trail Lichen Peak North Quarry Climbing Access Trail above the cliffs n. side Glory Hole s. edge
Full Size ImageErosion control on the North Table Mountain trail.
Full Size ImageSocial trail on west side of North Table Mountain.  

Friday, April 22nd

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North Table Mountain trail
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Top of North Table Mountain.
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Trail Junction: Trail to North Quary Climbing Area and Sea Cliffs.
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Brunel property from North Table Mountain.
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Path of rock tramway on North Table Mountain.
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Something in the Apiaceae on the edges of cliffs.
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Lichen Peak from the North Quarry wall.
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North Quarry climbing area.
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Top of the quarry road.
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Artificial and ephemeral ponds on top of North Table Mountain.
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Artificial pond on top of North Table Mountain.
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The territory between Lichen Peak and the radio tower.
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North Quarry from Lichen Peak.
 

Other articles: North Table Mountain Trail on slope
Full Size ImageColl. No. 1317, Taraxacum officinale on North Table Mountain Trail.  

1317  Field identification: Taraxacum officinale.

Taraxacum officinale F. H. Wigg. Common Dandelion.

North Table Mountain, Jefferson County, Colorado. On the City of Golden North Table Mountain trail, just below the southwest rim of North Table Mountain, 1.9 km north of the GNIS location of Golden. 39.7727N, 105.224W. WGS 1984 Elev. 1906 m. Flat area beside the trail.

Other articles: North Table Mountain Trail on slope
Full Size ImageHabitat of Coll. No. 1318, Corydalis aurea
Full Size ImageColl. No. 1318, Corydalis aurea  

1318  Field identification: Corydalis aurea.

Corydalis aurea Willd. Scrambled Eggs.

North Table Mountain, Jefferson County, Colorado. On the City of Golden North Table Mountain trail, just below the southwest rim of North Table Mountain, 1.9 km north of the GNIS location of Golden. 39.7727N, 105.2239W. WGS 1984 Elev. 1926 m. Rocky open slopes above the trail. Small plants here, one larger plant in the basalt rim of the mesa.

 

 

Other articles: CO Hwy 12 s. side North Lake La Veta at CR 422 Cuchara Pass Apishapa Road at Cucharas Pass at Farley Overlook Bosque del Oso Road 12000 60000 US Interstate 25 at view point

Locations: Cucharas Pass. La Veta. North Lake. Pikes Peak. South Fork Purgatoire River.
Full Size ImagePikes Peak from US I-25.  

Tuesday, April 26th

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La Veta Town Hall, formerly the railroad depot(?)
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South White Peak in the Spanish Peaks area.
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Cuchara Pass, elev. 9995 ft.
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John B. Farley Memorial Wildflower Overlook
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Cordova Pass Road interpretive panel
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John B. Farley Memorial Wildflower Overlook
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North Lake
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Old adobe fam house along the South Fork Purgatoire River
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Cows in field along the South Fork Purgatoire River.
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Emergency Muster Point located to 5 decimal points.
 

 

   

Wednesday, April 27th

 

Other articles: US Highway 350 Thatcher
Full Size ImageAmtrak Southwest Chief between La Junta and Trinidad.  

Near the former town of Thatcher on US Highway 50 to La Junta from Trinidad.

Other articles: County Road 25 on the prairie County Road N at high point
Full Size ImageThe Rocky Mountains, 100 miles away.
Full Size ImageCounty Road 25 “Rourke Road”  

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Pronghorn in the field.
Various scenes on roads to Picketwire Canyon.

Other articles: Forest Road 500A at t. h.

Locations: Purgatoire Canyon.
Full Size ImagePicketwire Canyon from Withers Canyon Trailhead.  

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Picketwire Canyon from Withers Canyon Trailhead.
At the Withers Canyon trailhead to Picketwire Canyon.

Other articles: Vogel Canyon Road at stage road at t. h.

Locations: Vogel Canyon.
Full Size ImageTracks of the Barlow and Sanderson Stage Line cross the Vogel Canyon access road.  

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Cheryl at the petroglyphs in Vogel Canyon.
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Vogel Canyon interpretive panel.
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Vogel Canyon.
At Vogel Canyon.

Other articles: Colorado Highway 194 Bent's Old Fort National Historic Site

Locations: Bent's Old Fort National Historic Site.
Full Size ImageBent's Old Fort in La Junta, Colorado.  

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Bent's Old Fort in La Junta, Colorado.
A short visit to Bent's Fort at closing time.

 

   

Thursday, April 28th

 

Other articles: County Road W San Creek Massacre National Historic Site

Locations: Sand Creek Massacre National Historic Site.
Full Size ImageSand Creek Massacre Site National Historic Site  

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Sand Creek Massacre Site National Historic Site
 

Other articles: US Highway 385 in Cheyenne Wells US Hwy 40 in Cheyenne Wells

Locations: Cheyenne Wells.
Full Size ImageCheyenne County Court House  

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Old Jail Museum in Cheyenne Wells.
 

Other articles: US Hwy 40 near Firstview
Full Size ImageUP 8977 and UP 7254 pulling a string of empty tri-levels eastbound between Kit Carson and Cheyenne Wells, Colorado.  

 

 

   

Wednesday, May 4th

North Table Mountain, by way of the Golden Cliffs Trail to the Climbing Access Trail, then over the rim on an social trail route. From the top, used the social trail to the North Table Mountain Trail, then a social trail to the Golden Cliff Preserve parking lot.

Other articles: Golden Cliffs Trail along trail Field Notes 10 Feb 2017
Full Size ImageGrossulariaceae Ribes aureum
Full Size ImageGrossulariaceae Ribes aureum  

1319  Field identification: Ribes aureum.

Ribes aureum Pursh. Golden Currant.

North Table Mountain Park, Jefferson County, Colorado. Along the lower portion of the Golden Cliffs Trail, about 150 m. from the parking lot and trailhead,1.4 km. northeast of the GNIS location of Golden. 39.7668N, 105.2136W. WGS 1984 Elev. 1787 m. In a protected little rock enclosure, southeast aspect, more along the trail above.

Coll. No. 1319, 4 May 2016: Perennial shrub, to 1 m.; Stem, unarmed; Leaves, fascicled, broadly ovate, 29 mm. × 22 mm. wide, lobes 3, obtuse; Hypanthium, 9 mm., bright yellow; Sepals, petaloid, 5 mm.; Petals, 2.5 mm.; Ovary, 2 mm.

Other articles: Golden Cliffs Trail along trail
Full Size ImageColl. No. 1320, Mertensia lanceolata along the Golden Cliffs Trail.  

1320  Field identification: Mertensia lanceolata

Mertensia lanceolata (Pursh) DC. Prairie Bluebells.

North Table Mountain Park, Jefferson County, Colorado. Along the lower portion of the Golden Cliffs Trail, about 200 m. from the parking lot and trailhead,1.5 km. northeast of the GNIS location of Golden. 39.767N, 105.2131W. WGS 1984 Elev. 1822 m. Growing in afternoon shade of a small point of rocks, southeast exposure, more along the trail above.


Full Size ImageApiaceae Musineon divaricatum
Full Size ImageColl. No. 1321, Musineon divaricatum  
1321  Field identification: Musineon divaricatum

Musineon divaricatum (Pursh) Raf. Leafy Wildparsley.

North Table Mountain Park, Jefferson County, Colorado. Southwest rim of North Table Mountain, 1.55 km north of the GNIS location of Golden. 39.7695N, 105.2198W. WGS 1984 Elev. 1973 m. Edges of cliffs.

  1322  Field identification: Lomatium orientale

Lomatium orientale J.M. Coult. & Rose. Northern Idaho Biscuitroot.

North Table Mountain Park, Jefferson County, Colorado. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. 39.7696N, 105.2197W. WGS 1984 Elev. 1975 m. Widespread on mesa-top lava flow derived soils and colluvial soils of upper and lower slopes.


Full Size ImageEuphorbiaceae Euphorbia myrsinites  
1323  Field identification: Euphorbia myrsinites

Lomatium orientale J.M. Coult. & Rose. Northern Idaho Biscuitroot.

North Table Mountain Park, Jefferson County, Colorado. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. 39.7696N, 105.2197W. WGS 1984 Elev. 1975 m. Widespread on mesa-top lava flow derived soils and colluvial soils of upper and lower slopes.

Other articles: Social Trail at spring
Full Size ImageBrassicaceae Thlaspi arvense  

1324  Field identification: Thlaspi arvense

Thlaspi arvense L. Field Penny Cress.

North Table Mountain Park, Jefferson County, Colorado. Along a social trail above Peery Parkway, adjacent to running water from spring above on upper slopes of North Table Mountain, 1.26 km north northeast of the GNIS location of Golden. 39.7669N, 105.22W. WGS 1984 Elev. 1829 m.

Coll. No. 1324, 4 May 2016, characters observed: Annual, tap-rooted, to 50 cm., generally glabrous throughout; Stem, single, or few-branched proximally; Leaves, basal and cauline, basal, withered at flowering, cauline, sessile, auriculate, oblong, 30 mm. × 5 mm. wide, reduced distally, toothed; Sepals, 2 mm.; Petals, 3 mm., white; Fruit, petiole 10 mm., ascending, fruit obovate, 10 mm. × 8 mm., wide, margin winged, tip deeply notched.

 

 

Locations: Ranson/Edwards Homestead Open Space Park.  

Thursday, May 5th

Ranson/Edwards Homestead Open Space Park, at the small segment toward the south end of the park.
  1325  Field identification: Mertensia lanceolata.

Mertensia lanceolata (Pursh) DC. Prairie Bluebells.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Wet alluvial slope above Coal Creek, Stevens parcel immediately south of Ranson/Edwards parcel, 3.55 km west southwest of the GNIS location of Rocky Flats 39.8789N, 105.2703W. WGS 1984 Elev. 1959 m.

  1326  Field identification: Lomatium orientale

Lomatium orientale J.M. Coult. & Rose. Northern Idaho Biscuitroot.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Stevens parcel just south of Ranson/Edwards parcel, about 180 m. northwest of the Plainview Road bridge over Coal Creek, 3.65 km west southwest of the GNIS location of Rocky Flats, 39.8792N, 105.2717W. WGS 1984 Elev. 1990 m. Gentle east-facing grassy slopes.

  1327  Field identification: Stellaria media Cerastium arvense var. strictum

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Stevens parcel immediately south of Ranson/Edwards parcel, 1.5 km south of the GNIS location of Plainvew, and 3.65 km south southwest of Rocky Flats. 39.8805N, 105.2723W. WGS 1984 Elev. 2013 m. East-facing grassy slopes.

Common early-flowering perennial, to 20 cm.; Leaves, opposite, broadly linear, 15 mm. × 3 mm. wide, stipules absent, tufts of leaves in lower axils; Sepals free; Petals >>sepals, white, notched; Styles (4)5.

  1328  Field identification: Draba sp. Eeek! I didnt recognize it here among the ponderosa pines.

Noccaea fendleri (A. Gray) Holub ssp. glauca (A. Nelson) Al-Shehbaz & M. Koch.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Stevens parcel immediately south of Ranson/Edwards parcel, 1.5 km south of the GNIS location of Plainvew, 3.71 km west southwest of the GNIS location of Rocky Flats. 39.8806N, 105.2731W. WGS 1984. Elev. 2021 m. East-facing gentle slope. Few plants in the shade of ponderosa pine.


Full Size ImageHabitat of Coll. No. 1329, Noccaea fendleri var. glauca  
1329  Field identification: Draba sp. Eeek! I didnt recognize it here among the ponderosa pines.

Noccaea fendleri (A. Gray) Holub ssp. glauca (A. Nelson) Al-Shehbaz & M. Koch.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Stevens parcel immediately south of Ranson/Edwards parcel, 1.64 km south southeast of the GNIS location of Plainview, 3.48 km west southwest of the GNIS location of Rocky Flats. 39.8797N, 105.2699W. WGS 1984. Elev. 1991 m. Common in shade of ponderosa pines among rocks; flat, disturbed area above Coal Creek, with much broken glass.

 

 

Locations: Tucker Gulch (lower).  

Wednesday, May 11th

Tucker Gulch in Golden, along the trail from First Street northward. There were a couple of things in the mustard family that were not ready to collect.

Other articles: Tucker Gulch Trail near 1st  

1330  Field identification: Chorispora tenella

Chorispora tenella (Pall.) DC. Crossflower.

Tucker Gulch (lower), Jefferson County, Colorado. Disturbed area between paths, 1.33 km north northwest of the GNIS location of Golden 39.7667N, 105.227W. WGS 1984 Elev. 1753 m. Small colony of this common early spring weed.

Other articles: Tucker Gulch Trail near 1st  

1331  Field identification: Euphorbia, not E. myrsinites

Euphorbia esula L. Leafy Spurge.

Tucker Gulch (lower), Jefferson County, Colorado. Disturbed area between paths, 1.33 km north northwest of the GNIS location of Golden 39.7666N, 105.2272W. WGS 1984 Elev. 1776 m. Weed: CO DofA, List: B.

  1332  Field identification: Muscari botryoides

Muscari botryoides (L.) Mill. Common Grape Hyacinth.

Tucker Gulch (lower), Jefferson County, Colorado. Beside Tucker Gulch Trail, about 100 m. north of the First Street bridge, 1.42 km north northwest of the GNIS location of Golden 39.7674N, 105.2273W. WGS 1984 Elev. 1773 m. Naturalized.

Other articles: Tucker Gulch Trail above First
Full Size ImageColl. No. 1333, Ranunculus repens
Full Size ImageBasal leaf of Coll. No. 1333, Ranunculus repens  

1333  Field identification: Ranunculus sp.

Ranunculus repens L. Creeping Buttercup.

Tucker Gulch (lower), Jefferson County, Colorado. 135 m. north of First Street bridge, 1.46 km north northwest of the GNIS location of Golden 39.7677N, 105.2275W. WGS 1984 Elev. 1767 m. In a small slump beside creek.

Coll. No. 1333, 11 May 2016, characters observed: Perennial herb, terrestrial of wet habitat, not alpine, appressed to spreading hairy throughout; Leaves, basal, petiole to 26 cm., 8 cm. × 10 cm. wide, ternately compound, divided once again, then lobed, cauline, distributed along stem, alternate, compound; Flowers, radially symmetric, Sepals, spreading (not reflexed), 9 mm., long straight hairy; Petals, #5, 16 mm. × 12 mm. wide, yellow, not spurred, nectary scale free ≥½ length; Pistils many; Style absent; Achenes, (immature) 1.5 mm., beak straight to slightly curved.

Other articles: Tucker Gulch Trail above First  

1334  Field identification: Phleum pratense. Ha! I've been looking all over for an Alopecurus, and here I collected it thinking it was Timothy grass.

Alopecurus arundinaceus Poir. Creeping Meadow Foxtail.

Tucker Gulch (lower), Jefferson County, Colorado. 135 m. north of First Street bridge, 1.46 km north northwest of the GNIS location of Golden 39.7677N, 105.2274W. WGS 1984 Elev. 1766 m. Growing adjacent to running water in creek.

Coll. No. 1334, 11 May 2016, characters observed: Perennial, to 90 cm., rhizomatous; Leaves, Sheath, open, 10 cm.; Ligule, membraneous, 2 mm.; Auricles, 0; Blade, flat, 10 cm., glabrous, finely scabrous on margins; Inflorescence, spike-like, 80 mm. × 12 mm. wide, contracted panicle of up to 4 branches, spikelets many; Rachis, glabrous; Compression, lateral; Spikelets, similar, 1 per node, 1-flowered; Florets, 1 per spikelet; Glumes, #2, 4.5 mm., ±equal, keeled ciliate, veins 3, awns 0, apex acute, apices divergent; Lemma, 4 mm., < glumes, membraneous, keeled, glabrous, veins parallel, apex truncate to obtuse, awns #1, 1-2 mm., straight, attached middle; Palea, absent; Stamens, #3.

  1335  Field identification: Brassicaceae.

Not collected, no fruit.

Other articles: Tucker Gulch Trail at shelter
Full Size ImageColl. No. 1336, Capsella bursa-pastoris  

1336  Field identification: Brassicaceae, Shepherd's Purse shaped fruit. Well, by golly it's ...

Capsella bursa-pastoris (L.) Medik. Shepherd's Purse.

Tucker Gulch (lower), Jefferson County, Colorado. 230 m. north of the First Street bridge, 1.55 km north northwest of the GNIS location of Golden 39.7685N, 105.228W. WGS 1984 Elev. 1779 m. Common weed beside Tucker Gulch Trail.

Coll. No. 1336, 11 May 2016, characters observed: Annual, scapose, to 27 cm., hairs, sessile, stellate, 3-4 points, throughout; Leaves, basal, oblanceolate, 55 mm. × 16 mm. wide, deeply lobed, but not all the way to mid-rib; cauline, 4-5 stem leaves, lanceolate, 25 mm. × 10 mm. wide, base sagittate; Flowers, small, petals white; Fruit, obcordate, 4 mm. × 3.5 mm. wide.

The single species in this genus; described by some as the second-most common weed on Earth.

Other articles: Social Trail along trail
Full Size ImageHabitat of Coll. No. 1337, an Erigeron, maybe E. tracyi
Full Size ImageFlowers of Coll. No. 1337, an Erigeron, maybe E. tracyi  

1337 
Full Size Image
Coll. No. 1337, Erigeron tracyi
Field identification: Erigeron sp., maybe E. tracyi.

Erigeron tracyi Greene. Running Fleabane.

North Table Mountain Park, Jefferson County, Colorado. Lower south slopes of North Table Mountain, 100 m. east of the end of Peery Parkway, 1.2 km. north northeast of the GNIS location of Golden. 39.7659N, 105.2179W. WGS 1984 Elev. 1808 m. Signed as Jefferson County Open Space, parcel owned by City of Golden.

Coll. No. 1337, 11 May 2016, characters observed: Perennial, caudex simple (not stout), Stem, some with prior year's branches assumed to have been stoloniferous; Leaves, petioles, to 26 mm., oblanceolate, 8-12 mm. × 2-5.5 mm. wide, margin entire, short hairy and glandular (especially visible at high magnification), stem leaves not well-developed; Peduncle, spreading to descending multicellular hairs with clear crosswalls, slightly pustular (maybe) or glandular at high magnification; Phyllaries, in 2+ series, 4.5 mm. × 0.7 mm wide, spreading hairy, inner, margin, chartaceous; Receptacle, epaleate; Flowers, of two kinds; Rays, numerous, 7 mm., ligule, 4 mm. × 0.3-0.6 mm. wide, white-pink fading purple; Disk flowers, yellow; Pappus, ray and disk alike, inner, few capillary bristles, 4 mm., outer, short crown of scales, double pappus not particularly disgnostic in Erigeron.

  1338  Field identification: Populus deltoides.

Populus deltoides Marshall ssp. monilifera (Aiton) Eckenw. Plains Cottonwood.

North Table Mountain, Jefferson County, Colorado. South slopes of North Table Mountain, along the road to the Golden Cliffs overflow parking, 1.20 km north northeast of the GNIS location of Golden 39.7659N, 105.2167W. WGS 1984 Elev. 1802 m. Entrance to Jefferson County Open Space, parcel owned by City of Golden.

 

   

Thursday, May 12th

Collected at North Table Mountain today. Went up by way of the social trail from Easley Road and the on-ramp to Colorado Highway 58. At the first stream, I turned north and went cross-country north towards Cottonwood Canyon. Followed an old road with a social or game trail down to the junction of North Table Loop and Neighborhood Access Trail.
  1339  Field identification: Tragopogon dubius

Tragopogon dubius Scop. Yellow Salsify.

North Table Mountain Park, Jefferson County, Colorado. On a social trail from the intersection of Easley Road and CO Highway 58, west and upslope to North Table Loop, 1.9 km. northeast of the GNIS location of Golden. 39.7692N, 105.2077W. WGS 1984 Elev. 1800 m. Scattered widely along trail and grassy slopes above and below.

Other articles: North Table Loop near social trail Social Trail near N. Table Loop
Full Size ImageColl. No. 1340, Prunus virginiana
Full Size ImageFlowers of Coll. No. 1340, Prunus virginiana  

1340 
Full Size Image
Coll. No. 1340, Prunus virginiana
Field identification: Prunus virginiana

Prunus virginiana L. Chokecherry.

North Table Mountain Park, Jefferson County, Colorado. Southeast-draining canyon on the south side of North Table Mountain, 1.85 km. northeast of the GNIS location of Golden 39.7701N, 105.2106W. WGS 1984 Elev. 1841 m. Mixed shrubs and grass.

FNANM distinguishes two varieties, an eastern var. virginia and a Rocky Mountains and west var. demissa (syn: var. melanocarpa) with plants of the high plains showing intergradation between those of the Rockies and those of the East. Based on measured characters used by FNANM of raceme length, petal length, and leaf shape and dimensions, this specimen is closer to var. virginiana, i. e., the eastern variety than it is to the western variety, i. e., var. demissa (syn: var. melanocarpa).

Other articles: North Table Loop near social trail Social Trail near N. Table Loop
Full Size ImageColl. No. 1341, a plum, maybe Prunus domestica
Full Size ImageFlowers of Coll. No. 1341, a plum, maybe Prunus domestica  

1341 
Full Size Image
Coll. No. 1341, Prunus domestica
Field identification: an Ash, maybe Fraxinus americana Yikes! What was I thinking? or maybe I wasn't thinking

Prunus domestica L. European Plum.

North Table Mountain Park, Jefferson County, Colorado. Southeast-draining canyon on the south side of North Table Mountain, near intersection of social trail and North Table Loop, 1.85 km. northeast of the GNIS location of Golden 39.7701N, 105.2106W. WGS 1984 Elev. 1844 m. Mixed shrubs and grass in a flat area.

Coll. No. 1341, 12 May 2016, characters observed; Small tree, to 3 m.; Stem, unarmed; Leaves, alternate, petiole, 3 mm., hairy, 2 glands at base, blade, likely immature, 20 mm. × 8 mm. wide, rhomboid / oblong / lanceolate, simple, bases equal, pinnately veined, margin toothed, hairy, but less on top than bottom; Pedicels, 8-10 mm., hairy below, thining above; Flowers, solitary in axils, perfect; Petals, free, white; Hypanthium, hairy inside; Ovary, superior; Style, 1; Stigma, 2; Fruit, unknown (not an acorn).

  1342  Field identification: Erodium cicutarium

Erodium cicutarium (L.) L'Her. ex Aiton. Redstem Stork's Bill.

North Table Mountain Park, Jefferson County, Colorado. Southeast-draining canyon on the south side of North Table Mountain, near intersection of social trail and North Table Loop, 1.85 km. northeast of the GNIS location of Golden. 39.7702N, 105.2104W. WGS 1984 Elev. 1849 m. Colorado Noxious Weed List C.

Other articles: North Table Loop near creek
Full Size ImageColl. No. 1343, Woodsia oregana subsp. cathcartiana  

1343  Field identification: a fern, maybe Cystopteris fragilis Nope, it's the other fern

Woodsia oregana D.C. Eaton. subsp. cathcartiana (B. L. Robinson) Windham

North Table Mountain Park, Jefferson County, Colorado. Southeastern portion of North Table Mountain, near the North Table Loop, where it passes through the top basalt rim of the mountain, 1.8 km. north northeast of the GNIS location of Golden. 39.7713N, 105.215W. WGS 1984 Elev. 1928 m. Under an east-facing rock overhang.

Of the three characters that distinguish subsp. cathcartiana from subsp. oregana, two, spore size and adaxial epidermal cell size, require measuring in units of m, something outside the usual abilities of the field botanist. The third character, regarding the cells on pinnule margins being irregular in shape making the margins appear ragged, can be seen with a good microscope.

Other articles: North Table Loop near creek
Full Size ImageHabitat of Coll. No. 1344, Veronica arvensis
Full Size ImageHabit of Coll. No. 1344, Veronica arvensis  

1344 
Full Size Image
Fruit of Coll. No. 1344, Veronica arvensis
Full Size Image
Inflorescence of Coll. No. 1344, Veronica arvensis
Full Size Image
Coll. No. 1344, Veronica arvensis
Field identification: a blue Veronica, maybe V. biloba

Veronica arvensis L. Corn Speedwell.

North Table Mountain Park, Jefferson County, Colorado. Southeast edge of North Table Mountain where a small stream cuts through the uppermost basalt rim, beside North Table Loop, 1.85 km. north northeast of the GNIS location of Golden. 39.7715N, 105.2149W. WGS 1984 Elev. 1922 m. Small wet area at base of rocks.

Coll. No, 1344, 12 May 2016, characters observed: Annual, to 6 cm., lightly glandular hairy throughout; Stem erect; Leaves, opposite, ±sessile, 6 mm. × 4.5 mm. wide, oval; Pedicel, in flower, 0.8 mm., in fruit, 1.5 mm.; Bracts, 4 mm × 1.3 mm. wide, lanceolate; Flower, appear solitary in upper leaf axils, limb 4.5 mm.; Corolla, blue; Style, in flower, 0.6 mm., in fruit, 0.5 mm.; Fruit, 2 mm. × 2.5 mm., notched 0.4 mm., flattened.

Differentiated from Veronica persica, V. biloba, and V. polita by: short pedicels, short styles, and reduced depth of the notch in the capsule. Differentiated from V. peregrina var. xalapensis (which has also been collected on top of North Table Mountain) by the relatively short inflorescence, blue color of the flowers, and broadness of the leaves.

Other articles: Neighborhood Access Trail near trailhead
Full Size ImageColl. No. 1345, Physaria vitulifera  

1345  Field identification: Physaria, probably P. montana nope, it's vitulifera

Physaria vitulifera Rydb. Roundtip Twinpod.

North Table Mountain Park, Jefferson County, Colorado. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden 39.7744N, 105.1975W. WGS 1984 Elev. 1767 m. Open grassland on south-facing slope.

Coll. No. 1345, 12 May 2016, characters observed: Perennial, caespitose, stellate hairy throughout, flowering branches to 15 cm.; Leaves, basal, petiole 10 mm. + blade 23 mm. × 8 mm. wide, elliptic, weakly pinnately lobed, otherwise entire, cauline, alternate, 13 mm. × 4 mm. wide, oblancelate, entire; Pedicel, 5 mm., ascending, becoming s-shaped in fruit; Sepals, #4, 5 mm. × 1.5 mm. wide, lanceolate; Flowers, Petals, #4, 10 mm. × 2.5 mm. wide, color yellow; Stamens, #6; Style, #1, 4 mm., persistent; Fruit, didymous, 4.5 mm., round, hairy; Ovules, 4 per ovary.

Literature Cited:
- Ackerfield, Jennifer, 2015.
- Baldwin, Bruce G., Douglas H. Goldman, David J. Keil, Robert Patterson, and Thomas J. Rosatti, 2012.
- Higgins, Larry C., 1972.
- Rolfsmeier, Susan J., 2013.
- Weber, William A., and Ronald C. Wittmann, 2012.
- Welsh, Stanley L., N. Duane Atwood, Sherel Goodrich, and Larry C. Higgins, 1993.  

1346  Field identification: was hoping it was a Plagiobothrys but looks like it's Lappula redowski.

Lappula occidentalis (S. Watson) Greene var. cupulata (A. Gray) Higgins. (Syn: L. redowskii (Hornem.) Greene var. cupulata (A. Gray) M. E. Jones) Crowned Stickseed.

North Table Mountain Park, Jefferson County, Colorado. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden 39.7744N, 105.1975W. WGS 1984 Elev. 1758 m. Open grassland on south-facing slope.

I am familiar with naming this plant L. redowskii (Hornem.) Greene var. cupulata (A. Gray) M. E. Jones, having collected it just south of Coyote Summit in the Silver Peak Range, of Esmeralda County, Nevada (26 May 2004, UCR248660).

The Jepson Manual of California (Baldwin, et al., 2012) uses this name as well.

However, I was surprised to see L. occidentalis (S. Watson) Greene var. cupulata (A. Gray) Higgins applied to this plant in Ackerfield (2015). Weber & Wittmann (2012) do not list varieties of L. redowskii. This name was proposed by Larry Higgins in his (1972) “The Boraginaceae of Utah.” Higgins made no comment his separation of the taxon from L. redowskii, stating only that L. occidentalis is not the L. redowskii of European authors.

Welsh, et al., 1993 in their Flora of Utah explained their reasoning:

Whether the name L. redowskii (Hornem.) Greene [Myosotis redowskii Hornem.] applies to plants from north America is open to question. One is referred to a discussion by Hulten (1967. Arkiv For Botanik. Bd. 7 nr. 1:113) for one interpretation of the problem, outlining the course followed herein. Solution of the problem rests on whether the European material is conspecific with the American phases of an interrupted circumboreal representation. Most certainly the names used here apply to our material.

Rolfsmeier (2013) proposed Lappula occidentalis var. stricta (S. Watson) Rolfsmeier comb. nov. and placed var. cupulata (A. Gray) Higgins in synonomy with it.

 

   

Friday, May 20th

 

Literature Cited:
- Chen, Chia Jui, Meghan G. Mendenhall, and Billie L. Turner, 1994.

Other articles: Neighborhood Access Trail above meadow
Full Size ImagePatch of Thermopsis rhombifolia, Coll. No. 1347  

1347  Field identification: Thermopsis rhombifolia

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely. Prairie Thermopsis.

North Table Mountain Park, Jefferson County, Colorado. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. 39.775N, 105.1987W. WGS 1984 Elev. 1773 m. Fruit ascending to spreading. Large patch in meadow, visited by large bumblebees.

Literature Cited:
- Chen, Chia Jui, Meghan G. Mendenhall, and Billie L. Turner, 1994.  

1348  Field identification: Thermopsis rhombifolia, on the other side of the creek.

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely. Prairie Thermopsis.

North Table Mountain Park, Jefferson County, Colorado. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. 39.7747N, 105.199W. WGS 1984 Elev. 1764 m. Fruit ascending to spreading. Large patch in meadow, visited by large bumblebees. On the other side of the creek from my Coll. No. 1347 of the same taxon.

  1349  Field identification: Cercocarpus montanus

Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany.

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 295 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.775N, 105.1989W. WGS 1984 Elev. 1776 m.

  1350  Field identification: Rubus deliciousus

Rubus deliciosus Torr. Delicious raspberry.

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 310 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.7751N, 105.1988W. WGS 1984 Elev. 1773 m.

  1351  Field identification: Populus deltoides

Populus deltoides Marshall ssp. monilifera (Aiton) Eckenw. Plains Cottonwood.

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 400 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.7759N, 105.1994W. WGS 1984 Elev. 1782 m. Group of 8-10 trees together on both sides of creek.

Other articles: Neighborhood Access Trail at rock outcrop
Full Size ImageColl. No. 1352, Scutellaria brittonii  

1352  Field identification: Scutellaria brittonii

Scutellaria brittonii Porter. Britton's Skullcap.

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 260 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.7748N, 105.1981W. WGS 1984 Elev. 1773 m. Moderate slope above rock outcrop.

  1353  Field identification: Allium textile

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

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 250 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.7747N, 105.1979W. WGS 1984 Elev. 1775 m. Moderate slope above rock outcrop.

Other articles: Neighborhood Access Trail near trailhead
Full Size ImageGlandular teeth on leaf margin of Coll. No. 1354, Prunus pensylvanica
Full Size ImageColl. No. 1354, Prunus pensylvanica  

1354  Field identification: domestic apple? Nope, another Prunus

Prunus pensylvanica L. f. Pin Cherry.

North Table Mountain Park, Jefferson County, Colorado. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 130 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. 39.7739N, 105.1974W. WGS 1984 Elev. 1755 m. Trail-side, in an area with old concrete foundations, as though planted.

Coll. No. 1354, 20 May 2016, characters observed: Small tree, to 3 m., branches unarmed; Leaves, petiole, 12 mm., very short hairy, blade, elliptic, 25 mm. × 20 mm. wide, margin, toothed, gland-tipped, veins of young leaves hairy abaxially; Flowers, clusters of 7-8 on pedicels to 14 mm.; Sepals, glabrous, few (2) glands on margins; Hypanthium, glabrous inside; Petals, 5-7 mm., white; Stamens, #12-15; Ovary, superior, glabrous; Style, #1, 4 mm., emerges from top of ovary; Fruit, unknown.

 

 

Locations: Tin Cup Ridge.  

Saturday, May 21st

“Tin Cup Ridge,” from the Rooney Road Sports Complex to the power lines at the south end.

Other articles: Tin Cup Ridge (social trail) along trail
Full Size ImageColl. No. 1355, Arctostaphylos uva-ursi
Full Size ImageColl. No. 1355, Arctostaphylos uva-ursi  

1355  Field identification: Arctostaphylos uva-ursi

Arctostaphylos uva-ursi (L.) Sprengel. Bearberry.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.5 km. south of the GNIS location of Golden 39.708N, 105.2027W. WGS 1984 Elev. 1963 m. Sterile. Small patch growing in and around rocks.

  1356  Field identification: Lomatium orientale

Lomatium orientale J.M. Coult. & Rose. Northern Idaho Biscuitroot.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.5 km. south of the GNIS location of Golden 39.708N, 105.2027W. WGS 1984 Elev. 1963 m. Thin soils between layers of upturned strata.

Other articles: Tin Cup Ridge (social trail) along trail
Full Size ImageColl. No. 1357, Harbouria trachypleura  

1357  Field identification: Harbouria trachypleura

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

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.5 km. south of the GNIS location of Golden 39.7079N, 105.2028W. WGS 1984 Elev. 1964 m. Open, rocky ridge with Cercocarpus and ponderosa pine.

  1358  Field identification: Mertensia lanceolata

Mertensia lanceolata (Pursh) DC. Prairie Bluebells.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.5 km. south of the GNIS location of Golden. 39.7079N, 105.2027W. WGS 1984 Elev. 1968 m. Mostly around base of juniper and mountain mahogany at this location.

  1358  Field identification: Cercocarpus montana

Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.5 km. south of the GNIS location of Golden. 39.7079N, 105.2027W. WGS 1984 Elev. 1968 m.

Literature Cited:
- Chen, Chia Jui, Meghan G. Mendenhall, and Billie L. Turner, 1994.

Other articles: Tin Cup Ridge (social trail) along trail
Full Size ImageColl. No. 1360, Thermopsis rhombifolia var. divaricarpa on Tin Cup Ridge.  

1360  Field identification: Thermopsis rhombifolia, likely var. divaricarpa based on leaflet size, per Chen et al., 1994:

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely. Prairie Thermopsis.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.4 km. south of the GNIS location of Golden. 39.7085N, 105.2028W. WGS 1984 Elev. 1959 m. No fruit, large leaflets.


Full Size ImageGlaucous stomatal band on leaf of Coll. No. 1361, Juniperus communis var. depressa
Full Size ImageColl. No. 1361, Juniperus communis var. depressa  
1361  Field identification: Juniperus communis

Juniperus communis L. var. depressa. Common Juniper.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.4 km. south of the GNIS location of Golden. 39.7085N, 105.2029W. WGS 1984 Elev. 1956 m.

Other articles: Tin Cup Ridge (social trail) along trail
Full Size ImageColl. No. 1363, Delphinium, maybe D. nutallianum
Full Size ImageColl. No. 1362, Delphinium nuttallianum  

1362  Field identification: Delphinium, maybe D. nuttallianum

Delphinium nuttallianum Pritz. Twolobe Larkspur.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.3 km. south of the GNIS location of Golden. 39.7095N, 105.2031W. WGS 1984 Elev. 1950 M. Scattered between and inside shrubs.

  1363  Field identification: Rubus deliciosus

Rubus deliciosus Torr. Delicious raspberry.

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.3 km. south of the GNIS location of Golden. 39.7095N, 105.2031W. WGS 1984 Elev. 1952 m.

Other articles: Tin Cup Ridge (social trail) s. of saddle
Full Size ImageColl. No. 1364, Potentilla fissa  

1364  Field identification: Potentilla fissa

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

Tin Cup Ridge, Jefferson County, Colorado. Along the top of Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 5.2 km. south of the GNIS location of Golden. 39.711N, 105.2038W. WGS 1984 Elev. 1935 m. Just beginning to bloom. West-facing grassy slopes.

Coll. No. 1364, 21 May 2016, characters observed: Perennial, herb, caespitose, to 20 cm., terrestrial, not stoloniferous, glandular-hairy throughout; Leaves, basal, 12.5 cm. × 2.6 cm. wide, pinnately compound, leaflets, #11; cauline, reduced in size and number of leaflets, 4 cm. × 2 cm. wide, leaflets, #7; Inflorescence, congested cyme, with 5-7 flowers; Flowers, calyx, lobes, #5, 11 mm. × 4.5 mm. wide, fused at base, bractlets, 5 mm. × 1.3 mm. wide; Receptacle, hairy, <1 mm., Petals, 9 mm. × 7.5 mm. wide, color yellow; Stamens, many; Ovaries, many; Styles, widest at middle, attached laterally below top of ovary.

 

   

Tuesday, May 24th

Attempted to collect on the west side of North Table Mountain, taking the North Table Loop north from the trailhead off Hwy 93. Trip was cut short by thunderstorm and hail.

Other articles: North Table Loop half-way
Full Size ImageHabitat of Coll. No. 1365, Thlaspi arvense
Full Size ImageColl. No. 1365, Thlaspi arvense  

1365  Field identification: Thlaspi arvense

Thlaspi arvense L. Field Penny Cress.

North Table Mountain Park, Jefferson County, Colorado. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. 39.787N, 105.2275W. WGS 1984 Elev. 1833 m. Gentle grassy slope.

Other articles: North Table Loop half-way
Full Size ImageHabitat of Coll. No. 1366, Lepidium draba
Full Size ImageColl. No. 1366, Lepidium draba  

1366  Field identification: Lepidium draba

Lepidium draba L. White Top.

North Table Mountain Park, Jefferson County, Colorado. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. 39.7869N, 105.2275W. WGS 1984 Elev. 1833 m. Multiple colonies spread around gentle grassy slopes. Weed: CO DofA, List: B.

Coll. No. 1366, 24 May 2016, characters observed: Perennial, herb, to 45 cm., spreading by rhizomes, hairs simple; Leaves, basal, not seen, cauline, sessile, base auriculate, 36 mm. × 12 mm. wide, oblanceolate, margin irregularly toothed, reduced above; Flowers, petals, white; Style, immature, 1 mm.; Fruit, silicle, immature, 1.3-1.5 mm. × 0.5-1.0 mm. wide, flattened, wings 0, glabrous, reticulate-veined.

Other articles: North Table Loop half-way
Full Size ImageColl. No. 1367, Alyssum simplex  

1367  Field identification: Alyssum alyssoides nope, ain't that

Alyssum simplex Rudolphi. European Madwort.

North Table Mountain Park, Jefferson County, Colorado. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. 39.787N, 105.2274W. WGS 1984 Elev. 1834 m. Larger plants here amidst grasses, mostly smooth brome.

Coll. No. 1367, 24 May 2016, characters observed: Annual, to 30 cm., stellate hairs throughout; Leaves, basal, withered at flowering, appear compound, cauline, alternate, oblanceolate, 17 mm. × 4 mm. wide, margin entire, tip acute; Pedicels, in fruit, 4.5 mm.; Sepals, 2 mm. × 0.7 mm. wide, deciduous in fruit; Flowers, petals, yellow; Stamens, 2.5 mm.; Filaments, 2.0 mm., winged, 1.5 mm.; Fruit, silique, 5 mm. × 5.6 mm. wide, orbicular, flattened.

  1368  Field identification: Androsace occidentalis

Androsace occidentalis Pursh. Western Rockjasmine.

North Table Mountain Park, Jefferson County, Colorado. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. 39.787N, 105.2274W. WGS 1984 Elev. 1836 m. Tiny annual, hidden in the grass.

Literature Cited:
- Ackerfield, Jennifer, 2015.
- Anderson, John L., 2006.
- Andres-Hernandez, Agustina Rosa, Teresa Terrazas, Gerardo Salazar, and Helga Ochoterena, 2014.
- Baldwin, Bruce G., Douglas H. Goldman, David J. Keil, Robert Patterson, and Thomas J. Rosatti, 2012.
- Miller, Allison J., David A. Young, and Jun Wen, 2001.
- Torrey, John, and Asa Gray, 1838-1843.
- Weber, William A., and Ronald C. Wittmann, 2012.
- Welsh, Stanley L., N. Duane Atwood, Sherel Goodrich, and Larry C. Higgins, 1993.
- Yi, Tingshuang, Allison J. Miller, and Jun Wen, 2004.
- Yi, Tingshuang, Allison J. Miller, and Jun Wen, 2007.  

1369  Field identification: Rhus aromatica var. trilobata

Rhus trilobata Nutt. var. trilobata. Skunkbush Sumac.

North Table Mountain Park, Jefferson County, Colorado. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. 39.787N, 105.2272W. WGS 1984 Elev. 1838 m. Shrub on small ridge.

Nomenclature of Rhus

Welsh, et al. (1993) used Rhus aromatica Aiton var. trilobata (Nutt.) A. Gray (Syn: Rhus trilobata Nutt. ex T. & G.).

An early study of the Rhus complex phylogeny and biogeography by Miller, et al. (2001) showed that the Madro-Tertiary floristic element (subgenus Lobadium) had a single origin within the Arcto-Tertiary floristic element (subgenus Rhus).

Yi, et al. (2004) reported phylogenetic and biogeographis diversication of Rhus in the Northern Hemisphere ..

Anderson (2006) used Rhus aromatica Aiton var. trilobata (Nutt.) A. Gray (Syn: Rhus trilobata Nutt.). SEINet (accessed 22 Nov 2016) cites this article and the SEINet taxon tree follow this nomenclature.

Yi, et al. (2007 published a phylogeny of Rhus based on sequences of Nuclear nia-i3 intron and Chloroplast TrnC-trnD finding that Rhus is monophyletic and that incongruence among nuclear and chloroplast datasets, together with the phylogenetic positions, sympatric distributions, and morphological intermediacy of discordant taxa, suggest possible reticulate evolution among members of Rhus.

Baldwin, et al. (2012) propose Rhus aromatica Aiton (Syn: R. trilobata Nutt.), without infraspecific taxa.

Weber & Wittmann (2012) used Rhus aromatica Aiton subsp. trilobata (Nuttall) W. A. Weber (Syn: Rhus trilobata.)

Ackerfield (2015) uses Rhus trilobata Nutt. (Syn: Rhus aromatica Aiton) var. trilobata.

Andres-Hernandez, et al. (2014) combined structural and trnL-F and internal transcribed spacer sequences this one is $38.

The Plant List (accessed 22 Nov 2016) states that Rhus aromatica Aiton is an accepted name with publication details Hort. Kew. [W. Aiton] 1: 367. 1789 [7 Aug-1 Oct 1789] (as "aromaticum")

The Plant List (accessed 22 Nov 2016) also states that Rhus trilobata Nuttall is an accepted name with publication details Fl. N. Amer. (Torr. & A. Gray) 1(2): 219. 1838 [Oct 1838] . In that publication Torrey & Gray (1838) recognize Rhus aromatica Aiton as a separate taxon in the same section.

 

 

Other articles: Plainview Road at bend

Locations: Ranson/Edwards Homestead Open Space Park.
Full Size ImagePlainview Road in Ranson Edwards Homestead OSP  

Sunday, May 29th

Full Size Image
Northern portion of park.
Full Size Image
A few cows to keep the weeds down.
Ranson Edwards Homestead Open Space Park

Other articles: Plainview Road at bend
Full Size ImageColl. No. 1370, Iris missouriensis  

1370  Field identification: Iris missouriensis

Iris missouriensis Nutt. Western Blue Flag.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 39.894N, 105.2628W. WGS 1984 Elev. 1934 m. Moist east-facing slope with deep grass.

Other articles: Plainview Road at bend
Full Size ImageColl. No. 1371, Arnica fulgens
Full Size ImageFlower head of Coll. No. 1371, Arnica fulgens  

1371  Field identification: Arnica fulgens

Arnica fulgens Pursh. Foothill Arnica.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 15.8 km. north northwest of the GNIS location of Golden. 39.8941N, 105.2629W. WGS 1984 Elev. 1941 m. Cauline leaves opposite. Moist east-facing slope with deep grass.

Perennial herb of wetlands or moist areas, to 35 cm., glandular hairy throughout; Leaves, mostly basal and few cauline, basal, axils with 5 mm. brown wavy hair, petiole 70 mm. + blade 60 mm. × 12 mm. wide, 5 × longer than wide, cauline, opposite, sessile, ±2 pair, much reduced; Inflorescence, single heads on peduncle to 80 mm., flowers of two kinds; Involucre, 13 mm. × 22 mm. wide; Phyllaries, 2 ±equal series, 11-12 mm.× 3 mm. wide, green with dark tips; Receptacle epaleate; Rays, #12, fertile, tube 3 mm. + blade 16 mm. × 7 mm. wide = 19 mm., corolla yellow; Disc flowers, tube 7 mm. + lobes ≤1 mm. = 8 mm.; Pappus, bristles, 9 mm., white; Anther, yellow; Achene, 5 mm., short hairy. Described from Coll. No. 1119, 28 May 2015, and Coll. No. 1371, 29 May 2016. Subtribe Arnicinae is a sister subtribe to Madiinae (tarweeds) and Hulseinae, which contains both Hulsea and Eatonella, both common in the Mono Lake basin. Described by Pursh in Fl. Am. Sept. 2: 527 “On the banks of the Missouri,” but this is not a Lewis & Clark collection. Perhaps it is a Nuttall collection from 1810.

Other articles: Plainview Road at bend
Full Size ImageColl. No. 1372, Orobanche uniflora
Full Size ImageColl. No. 1372, Orobanche uniflora  

1372  Field identification: Orobanche uniflora

Orobanche uniflora L. Naked Broomrape.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 15.8 km. north northwest of the GNIS location of Golden. 39.8947N, 105.2627W. WGS 1984 Elev. 1939 m. Calyx lobes = tube when fresh, lobes > tube when dry, corolla white with bluish-purple.


Full Size ImageColl. No. 1373, Comandra umbellata subsp. pallida
Full Size ImageColl. No. 1373, Comandra umbellata subsp. pallida  
1373  Field identification: Comandra umbellata ssp. pallida

Comandra umbellata (L.) Nutt. ssp. pallida (A. DC.) Piehl. Pale Bastard Toadflax.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 15.8 km. north northwest of the GNIS location of Golden. 39.8947N, 105.2627W. WGS 1984 Elev. 1939 m.

  1374  Field identification: Stellaria longifolia Nope, leaves are awl-like

Eremogone fendleri (A. Gray) Ikonnikov. Fendler's Sandwort.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 310 m. north of Plainview Road. 39.895N, 105.2628W. WGS 1984 Elev. 1941 m.

Literature Cited:
- Chen, Chia Jui, Meghan G. Mendenhall, and Billie L. Turner, 1994.  

1375  Field identification: Thermopsis rhombifolia

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely. Prairie Thermopsis.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 335 m. north of Plainview Road. 39.8951N, 105.263W. WGS 1984 Elev. 1940 m. Small ridge between two watercourses.


Full Size ImageObs. No. 1471, Echinocereus viridiflorus  
Field observation of Echinocereus viridiflorus in bloom.

Full Size ImageColl. No. 1376, Draba reptans  
1376  Field identification: Draba, probably D. reptans

Draba reptans (Lam.) Fernald. Carolina Whitlow Grass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. 39.8953N, 105.2628W. WGS 1984 Elev. 1939 m. Growing among short grasses and forbs.

Coll. No. 1376, 29 May 2016, characters observed: Annual, from slender taproot, to 10 cm.; Leaves, basal, withered in fruit, entire, cauline, 0-1 pair per stem, 6 mm. × 2 mm. wide, entire, hairs branched; Pedicels, glabrous; Flowers, petals, color unknown; Fruit, distributed in upper ⅕-⅓ of rachis.


Full Size ImageInflorescence of Coll. No. 1377, Physaria montana
Full Size ImageColl. No. 1377, Physaria montana  
1377  Field identification: Physaria, probably P. montana.

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. 39.8953N, 105.2627W. WGS 1984 Elev. 1941 m. Among short grasses and forbs on a drier, gravelly alluvial ridge.

  1378  Field identification: Boraginaceae, probably Lappula redowski.

Lappula occidentalis (S. Watson) Greene var. cupulata (A. Gray) Higgins. Crowned Stickseed.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. 39.8953N, 105.2627W. WGS 1984 Elev. 1940 m. Short stature compared to those typically seen. Among short grasses and forbs on a drier, gravelly alluvial ridge.

Other articles: Plainview Road at bend
Full Size ImageColl. No. 1379, Castilleja integra
Full Size ImageInflorescence of Coll. No. 1379, Castilleja integra  

1379  Field identificaton: Castilleja integra.

Castilleja integra A. Gray. Wholeleaf Indian Paintbrush.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 410 m. north of Plainview Road. 39.896N, 105.2627W. WGS 1984 Elev. 1937 m.

  1380  Field identification: Harbouria trachypleura

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 620 m. north of Plainview Road. 39.898N, 105.2612W. WGS 1984 Elev. 1927 m. On break in slope above reservoir.

  1381  Field identification: Delphinium nuttallianum.

Delphinium nuttallianum Pritz. Twolobe Larkspur.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 620 m. north of Plainview Road. 39.898N, 105.2611W. WGS 1984 Elev. 1924 m. Upper northwest-facing slope above reservoir.

 

 

Other articles: Mesa Top Trail along trail
Full Size ImageDouglas Fir above the Mesa Top Trail  

Wednesday, June 1st

 

Other articles: North Table Loop half-way
Full Size ImageDetail of Coll. No. 1382, Lithospermum incisum
Full Size ImageColl. No. 1382, Lithospermum incisum  

1382  Field identification: Ellisia nyctelea Hmmm, not sure what happened here .

Lithospermum incisum Lehm. Narrowleaf Stoneseed.

North Table Mountain Park, Jefferson County, Colorado. Northwest base of North Table Mountain, about 150 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.7871N, 105.2261W. WGS 1984 Elev. 1811 m. Uncommon; widely distributed but not often seen. Northwest-facing slope, a little drier than surrounding area.

Other articles: North Table Loop half-way
Full Size ImageColl. No. 1383, Linum perenne  

1383  Field identification: Linum lewisii.

Linum perenne L. Blue Flax.

North Table Mountain Park, Jefferson County, Colorado. Northwest base of North Table Mountain, about 110 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.787N, 105.2259W. WGS 1984 Elev. 1845 m. Flowers consistently heterostylous, styles > stamens. On the edge of a small hill.

Definitely Linum, maybe L. perenne because the styles are consistently longer than the stamens, which, in Weber & Wittmann (2012), would put us in L. perenne rather than L. lewisii. The key in Ackerfield (2015) does not discriminate between the two taxa based upon characters that can be observed with this collection.

  1384  Field identification: Astragalus sp., small purple flowers, growing on pedicels arising from axils.

Astragalus flexuosus G. Don. Flexible Milkvetch.

North Table Mountain Park, Jefferson County, Colorado. Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.787N, 105.2259W. WGS 1984 Elev. 1850 m. Small purple flowers, on pedicels arising from axils. In grass and forbs on a small ridge.


Full Size ImageColl. No. 1385, Oxytropis lambertii  
1385  Field identification: Oxytropis lambertii sp., large magenta flowers, on basal scape.

Oxytropis lambertii Pursh. Purple Locoweed.

North Table Mountain Park, Jefferson County, Colorado. Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.7869N, 105.2261W. WGS 1984 Elev. 1849 m. Large magenta flowers, on peduncle arising from base.

Coll. No. 1385, 1 June 2016, characters observed: Perennial herb, acaulescent, mostly dolabriform hairs (one arm much shorter than the other); Leaves, basal, pinnately compound, leaflets #17, terminal leaflet present; Inflorescence, raceme, peduncle 30 cm., pedicels very short; Bracts, 7 mm. × 1.6 mm. wide, green, lanceolate; Calyx, tube 7 mm. + lobes 4 mm. = 11 mm.; Flower, zygomorphic, various shades of magenta to purple, banner, 17 mm., wings, 16 mm., keel, 13 mm., blades united enclosing stamens, recurved beak; Stamens, #10, diadelphous.


Full Size ImageColl. No. 1386, Orobanche fasciculata  
1386  Field identification: Orobanche uniflora, rare, 19 flowers in 3 clusters, calyx lobes ≥ tube, tan color.

Orobanche fasciculata Nutt. Clustered Broomrape.

North Table Mountain Park, Jefferson County, Colorado. Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.787N, 105.2244W. WGS 1984 Elev. 1864 m. 19 flowers in 3 clusters, calyx lobes = tube, tan color. Rare, southwest facing slope.

In O. fasciculata the calyx has a slightly reddish tint to it, something not noticed in O. uniflora.

  1387  Field identification: Vicia americana

Vicia americana Willd. var. americana. American Vetch.

North Table Mountain Park, Jefferson County, Colorado. Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. 39.787N, 105.2244W. WGS 1984 Elev. 1863 m. Vetch, leaves with forked terminal tendril.

Coll. No. 1387, 1 June 2016, characters observed: Perennial herb, to 30 cm.; Stem, not winged; Leaves, stipules, 3 mm. × 10 mm. wide, lobed, not connate, nectary 0; cauline, compound, odd-pinnate, leaflets #8, + forked tendril; Inflorescence, raceme, 4-5 flowered, pedicel 17 mm.; Flowers, zygomorphic, 20 mm.; Style, round, ring of hairs below stigma; Legume, stipe 5 mm. + body 20 mm. × 3 mm. wide + persistent style 2 mm.

Key characters:

  • Terminal leaflet modified to tendril.
  • Large leaf-like stipules.
  • Ring of hairs around round style.

Full Size ImageInflorescence of Coll. No. 1388, Euphorbia spathulata
Full Size ImageColl. No. 1388, Euphorbia spathulata  
1388  Field identification: Euphorbia spathulata.

Euphorbia spathulata Lam. Warty Spurge, Spoonleaf Spurge. North Table Mountain Park, Jefferson County, Colorado. Northwest side of North Table Mountain, southwest-facing slope above canyon, about 75 m. west of the underground water tank and 160 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. 39.787N, 105.223W. WGS 1984 Elev. 1893 m. Not listed as a noxious weed.

Coll. No. 1388, 1 June 2016, characters observed: Annual, tap-rooted, to 25 cm., glabrous throughout; Leaves, cauline alternate, 26 mm. × 9 mm. wide, spatulate, toothed; Inflorescence, umbellate, flower a cyathium; Capsules, 2.5 mm. × 2.8 mm. wide, warty-tuberculate.

  1389  Field identification: Dactylis glomerata, “Orchard Grass.”

Dactylis glomerata L. Orchard Grass.

North Table Mountain Park, Jefferson County, Colorado. Northwest side of North Table Mountain, southwest-facing slope above canyon, on the edge of the disturbed construction area for the underground water tank and 120 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. 39.7869N, 105.2225W. WGS 1984 Elev. 1890 m.

  1390  Field identification: Vicia americana, same as Coll. No. 1387.

Vicia americana Willd. var. americana. American Vetch.

North Table Mountain Park, Jefferson County, Colorado. Northwest side of North Table Mountain, southwest-facing slope above canyon, on the edge of the disturbed construction area for the underground water tank and 80 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. 39.7868N, 105.222W. WGS 1984 Elev. 1882 m. Same as Coll. No. 1387.


Full Size ImageColl. No. 1391, Ellisia nyctelea  
1391  Field identification: Ellisia nyctelea, “Aunt Lucy”

Ellisia nyctelea (L.) L. Aunt Lucy.

North Table Mountain Park, Jefferson County, Colorado. Northwest side of North Table Mountain, in the road to the underground water tank 30 m. northeast of the tank and 60 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. 39.7869N, 105.2218W. WGS 1984 Elev. 1875 m. Hidden in short mown grasses.

 

 

Other articles: North Table Loop near Golden Cliffs Spur Social Trail top of mesa

Locations: North Table Mountain Park.
Full Size ImagePurple Locoweed (Oxytropis lambertii) on top of North Table Mountain.  

Thursday, June 2nd

Full Size Image
Tiny Mousetails (Myosurus minimus) on top of North Table Mountain.
Pre-walk of Sunday's field trip.

 

 

Locations: North Table Mountain Park.  

Sunday, June 5th

Colorado Native Plant Society field trip to North Table Mountain.

 

 

Locations: North Table Mountain. North Table Mountain Park.  

Wednesday, June 9th

 

Other articles: North Table Mountain Trail Near water tank
Full Size ImageHabitat of Coll. No. 1392, Penstemon secundiflorus  

1392  Field identification: Penstemon secundiflorus.

Penstemon secundiflorus Benth. Sidebells Penstemon.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.6 km. north of the GNIS location of Golden. 39.7785N, 105.2271W. WGS 1984 Elev. 1866 m. West-facing slope with mixed grasses and forbs.

Other articles: North Table Mountain Trail Near water tank
Full Size ImageColl. No. 1393, Linaria dalmatica  

1393  Field identification: Linaria dalmatica.

Linaria dalmatica (L.) Mill. Dalmatian ToadFlax.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.6 km. north of the GNIS location of Golden. 39.7785N, 105.2271W. WGS 1984 Elev. 1870 m. West-facing slope with mixed grasses and forbs. Colorado Noxious Weed List B.

Other articles: North Table Mountain Trail at watercourse
Full Size ImageColl. No. 1394, Vicia americana var. minor
Full Size ImageColl. No. 1394, Vicia americana var. minor  

1394  Field identification: Vicia sp.

Vicia americana Willd. var. minor Hook. American Vetch.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. 39.7776N, 105.2262W. WGS 1984 Elev. 1883 m. In grass and small shrubs below the trail.

Coll. No. 1394, 1 June 2016, characters observed: Perennial herb, to 30 cm.; Stem, not winged; Leaves, stipules, 4 mm. × 15 mm. wide, reduced above, lobed, not connate, nectary 0; cauline, compound, odd-pinnate, leaflets #6-8, + simple tendril; Inflorescence, raceme, 4-5 flowered, pedicel 17 mm.; Flowers, zygomorphic, 14 mm., smaller than var. americana; petals, ±white, banner pink at point of inflection; Style, round, abaxially hairy below stigma; Legume, stipe ? mm. (indistinct) + body 32 mm. × 4 mm. wide + persistent style 2 mm.


Full Size ImageColl. No. 1395 Galium aparine  
1395  Field identification: Galium aparine.

Galium aparine L. Sticky Willy, Cleavers.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. 39.7774N, 105.2259W. WGS 1984 Elev. 1890 m. Shade of large shrubs in ravine.

Coll. No. 1395, 8 June 2016, characters observed: Annual/perennial unknown, weak-stemmed and scrambling through shrubs and grass; Stem, retrorsely scabrous on angles (but not densely so); Leaves, whorls of 6-8 (more leaves above, fewer below), 46 mm. × 4 mm. wide, oblanceolate, margins retrorsely scabrous, tips with a short spine; Flowers, corolla, greenish-white, lobes 1 mm.; Fruit, 1.3 mm., covered with hooked hairs.

Other articles: North Table Mountain Trail at watercourse s.
Full Size ImageColl. No. 1396, Hydrophyllum fendleri  

1396  Field identification: Hydrophyllum fendleri.

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

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. 39.7773N, 105.226W. WGS 1984 Elev. 1889 m. Moist shady west-facing ravine.

Other articles: North Table Mountain Trail at watercourse s.
Full Size ImageColl. No. 1397, Physocarpus monogynus  

1397  Field identification: Physocarpus monogynus.

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

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. 39.7773N, 105.226W. WGS 1984 Elev. 1889 m. Moist shady west-facing ravine.

Coll. No. 1397, 8 June 2016, characters observed: Shrub, height unknown (growing in ravine); Leaves, alternate, simple, hairs stellate, petiole, 10 mm., blade, 30 mm. × 33 mm. wide, ovate, palmate-veined, doubly crenate; Inflorescence, umbellate corymb, ±20-flowered; Pedicels, 8-12 mm.; Flowers, limb, 12 mm., petals, 4.5 mm., color cream; Styles, 2.

Other articles: North Table Mountain Trail on landslide
Full Size ImageColl. No. 1398, Astragalus agrestis  

1398  Field identification: Astragalus, maybe A. laxmannii var. robustior

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.3 km. north of the GNIS location of Golden. 39.7758N, 105.2261W. WGS 1984 Elev. 1906 m. Trailside, in grasses, in flat area likely created by a landslide.

Coll. No. 1398, 8 June 2016, characters observed: Perennial herb, to 15 cm., caulescent, basifixed straight appressed hairy throughout; Leaves, cauline, alternate, stipules, 5 mm., connate opposite petiole, compound, odd-pinnate, leaflets, #13, 8 mm. × 2 mm. wide, straight hairy, tip round; Inflorescence, upright ovoid cluster; Calyx, tube 4.5 mm. + lobes 3.5 mm. = 8 mm., mix of white and black hairs; Flowers, zygomorphic, 11 mm., blue-purple; Style, 7 mm., persistent; Legume, immature, 5 mm. × 1.7 mm. wide, stipe very short (0.4 mm.?), dense long straight soft hairy.

  1399  Field identification: Scozonera laciniata.

Scorzonera laciniata L. Cutleaf Vipergrass.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.2 km. north of the GNIS location of Golden. 39.7749N, 105.2262W. WGS 1984 Elev. 1902 m. Disturbed trailside with grasses and Tragopogon dubius.

Coll. No. 1399, 8 June 2016, characters observed: Perennial herb, to 40 cm., Leaves, basal and cauline, 7-20 cm., pinnately dissected into near-linear lobes, reduced but still well-developed above; Inflorescence, few heads on long stems; Phyllaries, in ±3 series, graduated, 4-13 mm. × 1.5-9 mm. wide, margins chartaceous, tips dark; Receptacle, epaleate; Flowers, ligulate (1 kind, 5-lobed), corolla yellow; Pappus of plumose bristles.

Other articles: North Table Mountain Trail near ridge
Full Size ImageColl. No. 1400, Astragalus laxmannii var. robustior  

1400  Field identification: Astragalus, maybe A. laxmannii var. robustior.

Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh. Prairie Milkvetch.

North Table Mountain, Jefferson County, Colorado. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 1.9 km. north of the GNIS location of Golden. 39.7727N, 105.225W. WGS 1984 Elev. 1912 m. In grasses and forbs trailside.

Coll. No. 1400, 8 June 2016, characters observed: Perennial herb, to 40 cm., caulescent, hairs dolabriform; Leaves, cauline, compound, leaflets, #17, 17 mm. × 5 mm. wide, elliptic, tip cuspidate, terminal leaflet jointed to rachis; Calyx, tube 6 mm. + lobes 5 mm. = 11 mm.; Flowers, 14 mm., whitish; Legume, more erect than flower.

Other articles: Field Notes Coll. No. 1445, 22 Jun 2016  

1401  Field identification: Eriogonum umbellatum, possibly two varieties.

This is a mixed collection of E. umbellatum and E. flavum. See also Coll. No. 1445.


Full Size ImageInflorescence of Coll. No. 1401.1, Eriogonum arcuatum
Full Size ImageColl. No. 1401.1, Eriogonum arcuatum  
1401.1  Field identification: Eriogonum sp.

Eriogonum arcuatum Greene.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. 39.7706N, 105.2213W. WGS 1984 Elev. 1962 m. Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.2, 1445.1, and 1445.2.

Coll. No. 1401.1, 8 Jun 2015, characters observed: Perennial, caespitose, to 10 cm.; Leaves, basal, elliptic, petiole 10 mm. + blade 30 mm. × 12 mm. wide, adaxial greenish floccose, abaxial tomentose; Flowering stems, without a whorl of bracts mid-stem; Inflorescence, umbellate (simple, not compound); Involucre, sessile (not peduncled), 4.5 mm., hairy, teeth, very short; Flowers, (obscurely) attenuate at base; Perianth, 4.5-6.0 mm., bright yellow, hairy.

  1401.2  Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. 39.7706N, 105.2213W. WGS 1984 Elev. 1962 m. Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.1, 1445.1, and 1445.2.

Other articles: North Table Loop near Golden Cliffs
Full Size ImageColl. No. 1402, Astragalus agrestis  

1402  Field identification: Astragalus agrestis.

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, southwest sector, 1.75 km. north of the GNIS location of Golden. 39.7713N, 105.2211W. WGS 1984 Elev. 1962 m. Growing in short grasses, near head of drainage where a little more soil has developed. Between North Table Loop and Golden Cliffs Trail, near their intersection.

  1403  Field identification: Cryptantha virgata.

Cryptantha virgata (Porter) Payson. Miner"s Candle.

North Table Mountain Park, Jefferson County, Colorado. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden 39.7751N, 105.222W. WGS 1984 Elev. 1978 m. On top of the flat surface of a spoils pile from the basalt quarry to the west.

Other articles: North Table Loop spoils pile
Full Size ImagePartially dissected head of Coll. No. 1404, Townsendia grandiflora  

1404  Field identification: Townsendia grandflora.

Townsendia grandiflora Nutt. Largeflower Townsend Daisy.

North Table Mountain Park, Jefferson County, Colorado. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. 39.7752N, 105.2223W. WGS 1984 Elev. 1979 m. On top of the flat surface of a spoils pile from the basalt quarry to the west.

Other articles: North Table Loop spoils pile
Full Size ImageColl. No. 1405, fragments of an Astragalus, maybe A. shortianus  

1405  Field identification: Astragalus shortianus, only one plant seen on top of the mesa, no flowers, collected 2 leaves and 2 pods. Another plant seen on the City of Golden North Table Mountain Trail.

Astragalus shortianus Torr. & A.Gray. Short's Milkvetch.

North Table Mountain Park, Jefferson County, Colorado. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. 39.7752N, 105.2223W. WGS 1984 Elev. 1976 m. Only plant seen, no flowers, collected two leaves and two pods. On top of the flat surface of a spoils pile from the basalt quarry to the west. Plant fragments which are consistent with A. shortianus.

  1406  Field identification: Lithospermum incisum.

Lithospermum incisum Lehm. Narrowleaf Stoneseed.

North Table Mountain Park, Jefferson County, Colorado. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. 39.7753N, 105.2222W. WGS 1984 Elev. 1978 m. On top of the flat surface of a spoils pile from the basalt quarry to the west. Uncommon, very widespread, but seldom seen, and never in large numbers.

Other articles: North Table Loop n. spoils pile
Full Size ImageColl. No. 1407, Oenothera caespitosa var. macroglottis  

1407  Field identification: Oenothera caespitosa.

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

North Table Mountain Park, Jefferson County, Colorado. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. 39.7755N, 105.2223W. WGS 1984 Elev. 1981 m. On the bank of a spoils pile from the basalt quarry, west-facing slopes. Most petals dried pink, a few remained yellowish.

Coll. No. 1407, 8 Jun 2016, characters observed: Perennial herb, to 20 cm., glabrous, except as noted; Stem, short, to 4 cm., but definitely there; Leaves, petiole, 90 mm., blade, 90 mm. × 28 mm. wide, oblanceolate, margin toothed, straight hairy; Buds, sparsely hairy on veins; Flowers, solitary in axils, floral tube 100 mm., petals, 37 mm., yellowish, most drying purplish; Stigma, 4-lobed; Capsule, 27 mm. × 5 mm. wide, valve ridges not tuberculate.

The leaves are toothed and not deeply lobed or deeply toothed, and there are no tubercules on the valve ridges of the capsules. Therefore, I am using var. macroglottis rather than var. marginata.

 

 

Locations: Ranson/Edwards Homestead Open Space Park.  

Friday, June 10th

Ranson/Edwards Homestead Open Space Park
  1408  Field identification: Harbouria trachypleura.

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, then 2.4 mi. northerly on Plainview Road, then 40 m. or so south of the road. 16 km. north northwest of the GNIS location of Golden. 39.8943N, 105.2737W. WGS 1984 Elev. 2009 m. Among grasses and ponderosa pines, near top of south-facing slope.

  1409  Field identification: Eriogonum umbellatum.

Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, then 2.4 mi. northerly on Plainview Road, then 40 m. or so south of the road. 16 km. north northwest of the GNIS location of Golden. 39.8943N, 105.2737W. WGS 1984 Elev. 2036 m. Among grasses and ponderosa pines, near top of south-facing slope.

  1410  Field identification: Galium, maybe G. triflorum

Galium aparine L. Sticky Willy, Cleavers.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, then 2.4 mi. northerly on Plainview Road, then 100 m. south of the road to the other side of the drainage. 16 km. north northwest of the GNIS location of Golden. 39.8937N, 105.2734W. WGS 1984 Elev. 2032 m. North-facing grassy slope with ponderosa pines.


Full Size ImageHabitat of Coll. No. 1411, Stellaria longifolia  
1411  Field identification: Stellaria longifolia

Eremogone fendleri (A. Gray) Ikonnikov. Fendler's Sandwort.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. northerly on Plainview Road, then 470 m. southwest of the road upslope. 16 km. north northwest of the GNIS location of Golden. 39.8897N, 105.2693W. WGS 1984 Elev. 2020 m. Mixed short grasses and forbs.


Full Size ImageColl. No. 1412, Erysimum capitatum  
1412  Field identification: Erysimum capitatum.

Erysimum capitatum (Hook.) Greene. Sanddune Wallflower.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 470 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. 39.8896N, 105.2692W. WGS 1984 Elev. 2016 m. Uncommon. Open gentle slope with grasses and forbs, lightly grazed in 2016.

Coll. No. 1412, 10 Jun 2016, characters observed: Biennial or short-lived perennial, to 33 cm., proximal hairs 2-rayed; Sepals, 9 mm.; Petals, 16-19 mm., orange; Anthers, 3.5-4.0 mm., Fruit, 34 mm. × 0.7 mm., ascending; Seed, unknown.

Weak evidence that this might be var. purshii were infraspecific taxa to be recognized in Colorado (Ackerman, 2015).


Full Size ImageColl. No. 1413, Lepidium campestre  
1413  Field identification: Lepidium ?

Lepidium campestre (L.) W. T. Aiton. Field Pepperweed.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 470 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. 39.8897N, 105.2694W. WGS 1984 Elev. 2021 m. Open gentle slope with grasses and forbs, lightly grazed in 2016.

Coll. No. 1413, 10 Jun 2016, characters observed: Annual, tap-rooted, to 35 cm., hairs simple throughout; Leaves, basal, petiole 10 mm. + blade 40 mm. × 12 mm. wide, oblanceolate, margin wavy, tip rounded, cauline, 21 mm. × 7 mm. wide, lanceolate, base auriculate, margin dentate (scalloped, though the term is rarely used); Inflorescence, terminal raceme, 72 mm. × 21 mm. plus several axillary racemes; Sepals, 1.2 mm. × 0.8 mm. wide, green, purple distally, margin chartaceous; Petals, 1.3 mm., white; Style, 1, 0.5 mm., persistent; Fruit, pedicel, horizontal, 5 mm., silicle, 4.5 mm. × 3 mm. wide, margin, winged, 0.2 mm. at middle, 1 mm. at apex.


Full Size ImageColl. No. 1415, Astragalus eucosmus  
1415  Field identification: Vicia sp.?

Astragalus eucosmus B. L. Rob. Elegant Milkvetch.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 455 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. 39.8903N, 105.2699W. WGS 1984 Elev. 2023 m. Open gentle slope with grasses and forbs, lightly grazed in 2016.

Coll. No. 1415, 10 June 2016, characters observed: Perennial, caulescent, to 40 cm., hairs basifixed throughout; Stem, not flexuous or zigzag distally, light brown above, purplish at base; Stipules, 6 mm., connate opposite petiole proximally; Leaves, cauline, alternate, compound, leaflets, #15, 15 mm. × 3.3 mm. wide, glabrous adaxially, hairy abaxially; Inflorescence, axillary racemes, flowers, #21; Calyx, tubes 3 mm. + lobes 1 mm. = 4 mm.; Flowers, spreading, 10 mm., ochroleucous proximally, blue distally, banner, 9.5 mm., wings, 8 mm., keel, 6 mm.; Fruit, unknown, immature, developing short stipitate and hairy.

I'm not so sure about my determination on this one. If it holds, it will be the first collection of this taxon from Jefferson County. I have distributed to JCOS, KHD, CS, and COLO, with a note requesting advice if the determination is changed.

  1416  Field identification: Oxytropis lambertii.

Oxytropis lambertii Pursh. Purple Locoweed.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 450 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. 39.8904N, 105.2698W. WGS 1984 Elev. 2023 m. Open gentle slope with grasses and forbs, lightly grazed in 2016.


Full Size ImageHabitat of Coll. No. 1417, Allium, perhaps A. geyeri
Full Size ImageColl. No. 1417, Allium geyeri  
1417  Field identification: Allium, perhaps A. geyeri.

Allium geyeri S. Watson. Geyer's Onion.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.7 mi. north on Plainview Road, then 375 m. southwest upslope.15.7 km. north northeast of the GNIS location of Golden. 39.8918N, 105.2709W. WGS 1984 Elev. 2019 m. Open gentle slope with grasses, Arnica fulgens, and a few small ponderosa pines.

Coll. No. 1417, 10 June 2016, characters observed: Perennial herb, geophyte, to 40 cm.; Bulb, 20 mm. × 20 mm. wide, ovoid, outer coat with coarse fibers; Leaves, #2-3, 24 cm. × 1.5 mm. wide, somewhat withered at anthesis; Inflorescence, umbel; Bracts, #3, 14 mm., prominently 1-veined; Flowers, #29, tepals, 7 mm., pink; Seed, unknown.


Full Size ImageOne-sided inflorescence of Coll. No. 1418, Dactylis glomerata  
1418  Field identification: Dactylis glomerata.

Dactylis glomerata L. Orchard Grass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.8 mi. north on Plainview Road, then 350 m. southwest upslope.15.8 km. north northeast of the GNIS location of Golden. 39.8922N, 105.2711W. WGS 1984 Elev. 2026 m. In and around a small group of ponderosa pines.


Full Size ImageInflorescence of Coll. No. 1419, Koeleria macrantha  
1419  Field identification: Koeleria macrantha, determination tentative.

Koeleria macrantha (Ledeb.) Schult. Prairie Junegrass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.8 mi. north on Plainview Road, then 350 m. southwest upslope.15.8 km. north northeast of the GNIS location of Golden. 39.8922N, 105.2711W. WGS 1984 Elev. 2025 m. In and around a small group of ponderosa pines.


Full Size ImageInflorescence of Coll. No. 1420, Poa pratensis
Full Size ImageRoots of Coll. No. 1420, Poa pratensis  
1420  Field identification: Agrostis, weakly rhizomatous.

Poa pratensis L. Kentucky Bluegrass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.8 mi. north on Plainview Road, then 350 m. southwest upslope.15.8 km. north northeast of the GNIS location of Golden. 39.8922N, 105.2711W. WGS 1984 Elev. 2029 m. In and around a small group of ponderosa pines. Collected with Dactylis glomerata and Koeleria macrantha.

Coll. No. 1420, 10 June 2016, characters observed: Perennial grass, rhizomatous (although of material collected for three vouchers, only one has rhizomes), not strongly flattened, to 75 cm.; Sheath, open about ½; Ligule, membraneous, 0.7 mm.; Auricles, 0; Inflorescence, much-branched open panicle, branches scabrous; Spikelets, one per node, 4 mm., awns 0; Florets, 3 per spikelet, reduced florets above fertile floret, #1 ♀, #2-3 ♂, Rachilla, extends 1 mm. above upper floret, not hairy; Glumes, #2, keeled, scabrous, lower, 2.0-2.3 mm., veins 1, upper, 2.5-3.0 mm., veins 3, prominent; Lemma, 3 mm., veins 5, keeled, tuft of hairs at base, >⅓ lemma; Palea, 2.3 mm., veins 2, green, otherwise translucent.


Full Size ImageColl. No. 1421, Erigeron vetensis  
1421  Field identification: Erigeron, not E. flagellaris, and maybe not E. divergens or E. tracyi.

Erigeron vetensis Rydb. Early Bluetop Fleabane.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.8 mi. north on Plainview Road, then 300 m. southwest upslope.15.8 km. north northeast of the GNIS location of Golden. 39.8934N, 105.2715W. WGS 1984 Elev. 2033 m. Small ridge between two drainages, grasses and a few ponderosa pines.

Coll. No. 1421, 10 Jun 2016, characters observed: Perennial, to 12 cm., sparse multicellular hairs with clear crosswalls to 0.8 mm., plus very small (<0.1 mm.) peg-like glands, throughout; Leaves, basal, petiole 45 mm. + blade 65 mm. × 5 mm. wide, narrowly oblanceolate, cauline, reduced in size, #4-5, sessile, 15 mm. × 2.1 mm. wide, oblanceolate; Inflorescence, scapose, 21 cm.; Heads, mostly borne singly; Involucre, 5 mm. × 11 mm. wide; Phyllaries, subequal, in 2 rows, 5 mm. × 0.7 mm. wide, margins not ciliate, tip acuminate; Flowers of 2 kinds, Ray flowers, fertile, corolla, 11 mm. × 1.6 mm. wide, ±white, fading blue; Disk flowers, corolla, 4.0 mm., yellow, lobes triangular, style branch appendages triangular; Pappus, short (0.3 mm.) and long (2.2 mm.) capillary bristles; Cypsela, 1.5-1.6 mm.

  1422  Field identification: Astragalus agrestis.

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 2.4 mi. generally north on Plainview Road, then 130 m. southeast across a small drainage, 15.95 km. north northwest of the GNIS location of Golden. 39.8938N, 105.2718W. WGS 1984 Elev. 2016 m. North-facing slope with grasses and ponderosa pines.

 

 

Locations: Colorado School of Mines Survey Field. Deadman Gulch.  

Wednesday, June 15th

Deadman Gulch and Survey Field.
  1423  Field identification: Astragalus drummondii.

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

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 140 m. west of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.735N, 105.2165W. WGS 1983 Elev. 1774 m. Open east-facing grassy slopes. Deadman Gulch is locally euphemistically known as Kinney Run.


Full Size ImageColl. No. 1423, Sphaeralcea coccinea  
1424  Field identification: Sphaeralcea coccinea.

Sphaeralcea coccinea (Nutt.) Rydb. Scarlet Globemallow.

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 140 m. west of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.735N, 105.2164W. WGS 1984 Elev. 1494 m. Open east-facing grassy slopes. Uncommon, only one seen here, two more 165 m. northwest (Coll. No. 1433).

  1425  Field identification: Gaillardia aristata.

Gaillardia aristata Pursh. Blanketflower.

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 150 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.7352N, 105.2165W. WGS 1984 Elev. 1799 m. East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of Kinney Run.


Full Size ImageColl. No. 1426, Helianthus pumilis  
1426  Field identification: Helianthus pumilis.

Helianthus pumilus Nutt. Little Sunflower.

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 145 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.7354N, 105.2163W. WGS 1984 Elev. 1797 m. Northeast-facing grassy slope.

Coll. No. 1426, 15 June 2016, characters observed: Perennial herb, to 40 cm.; Leaves, cauline, alternate, simple, petiole 7 mm. + blade 86 mm. × 30 mm. wide, adaxial, pustular hairy, hairs multicellular, crosswalls clear, abaxial, glandular and hairy; Inflorescence, few heads borne singly on peduncles to 8 cm., hairy, glandular; Phyllaries, 2+ series, similar, 10-8 mm. × 2-3 mm. wide; Receptacle, slightly convex, paleate, Palea, 9 mm., tip, glandular, hairy; Flowers, 2 kinds; Disk, 17 mm. wide; Ray flowers, sterile, 25 mm. × 9 mm. wide, yellow; Disk flowers, 6 mm., not laterally compressed, anther appendages reddish-brown; Pappus, 2 aristate scales.


Full Size ImageFlower heads and basal leaf of Coll. No. 1427, Hymenopappus filifolius var. polycephalus  
1427  Field identification: Hymenopappus filifolius.

Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner. Many-Headed Fine-Leaved Wooly-White.

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 145 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.7355N, 105.2164W. WGS 1984 Elev. 1796 m. East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of Kinney Run.

Coll. No. 1427, 15 June 2016, characters observed: Perennial herb, to 60 cm.; Leaves, basal, to 140 mm. × 50 mm., oblanceolate in shape, base conspicuously tomentose, bipinnately dissected to filiform segments, ultimate leaf divisions 12-19 mm., cauline, reduced above, #7-8; Heads, 10-16 per stem; Phyllaries, in 1 series, 6 mm. × 2.8-4.0 mm. wide, green, tomentose, margins chartaceous; Flowers, 1 kind; Disk flowers, corollas, 3.5 mm., yellow; Pappus, crown of scales, 0.8-1.2 mm.; Cypsela, 3 mm., hairy all over to just on margins.


Full Size ImageFlower and fruit of Coll. No. 1428, Opuntia polyacantha  
1428  Field identification: Opuntia polyacantha.

Opuntia polyacantha Haw. Plains Pricklypear.

Deadman Gulch, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 220 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.7358N, 105.2171W. WGS 1984 Elev. 1809 m. East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of Kinney Run.

  1429  Field identification: Oxytropis lambertii.

Oxytropis lambertii Pursh. Purple Locoweed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Lower, eastern edge of the Survey field, 250 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.2 km. south of the GNIS location of Golden. 39.7358N, 105.2174W. WGS 1984 Elev. 1808 m. Grassy, northwest-facing slope.


Full Size ImageColl. No. 1430, Oenothera howardii  
1430  Field identification: Oenothera howardii.

Oenothera howardii (A. Nels.) W. L. Wagner. Howard's Evening Primrose.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Lower, eastern edge of the Survey field, 250 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.2 km. south of the GNIS location of Golden. 39.7358N, 105.2174W. WGS 1984 Elev. 1812 m. Leaves basal, large yellow flowers, winged capsule. Grassy, northwest-facing slope.

  1431  Field identification: Astragalus agrestis.

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Lower, eastern edge of the Survey field, 250 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.2 km. south of the GNIS location of Golden. 39.7358N, 105.2176W. WGS 1984 Elev. 1809 m. Gentle northwest-facing grassy slope.

  1432  Field identification: Oenothera suffrutescens.

Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. Linda Tarde.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Lower, eastern edge of the Survey field, 250 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.2 km. south of the GNIS location of Golden. 39.7358N, 105.2175W. WGS 1984 Elev. 1811 m. Northwest-facing grassy slope. Generally described as common, but not often seen in this area; hence the small size of the collection.


Full Size ImageColl. No. 1423, Sphaeralcea coccinea  
1433  Field identification: Sphaeralcea coccinea.

Sphaeralcea coccinea (Nutt.) Rydb. Scarlet Globemallow.

Colorado School of Mines Survey Field, Jefferson County, Colorado. High plains between US Hwy 6 and Lookout Mountain, about 290 m. west of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. 39.7358N, 105.218W. WGS 1984 Elev. 1806 m. North-facing grassy slope. Uncommon, rarely seen, and solitary.

Other articles: Glossary glochidiate
Full Size ImageGlochidiate prickles on the nutlets of Coll. No. 1434, Cynoglossum officinale  

1434  Field identification: Cynoglossum officinale.

Cynoglossum officinale L. Gypsyflower.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, 2.2 km. south of the GNIS location of Golden. 39.7359N, 105.2188W. WGS 1984 Elev. 1801 m. High plains at the base of the Front Range, growing in dense vegetation along banks of a small creek. Colorado Noxious Weed List B.

  1435  Field identification: Equisteum hyemale.

Equisetum laevigatum A. Braun. Smooth Horsetail.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, 2.2 km. south of the GNIS location of Golden. 39.736N, 105.2188W. WGS 1984 Elev. 1799 m. High plains at the base of the Front Range, growing in dense vegetation along banks of a small creek.


Full Size ImageColl. No. 1436, Conium maculatum  
1436  Field identification: Conium maculatum.

Conium maculatum L. Common Poison Hemlock.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, between US Highway 6 and Lookout Mountain, 2.2 km. south of the GNIS location of Golden. 39.7359N, 105.2189W. WGS 1984 Elev. 1801 m. High plains at the base of the Front Range, growing in dense vegetation along banks of a small creek.


Full Size ImageColl. No. 1437, Elaeagnus angustifolia  
1437  Field identification: Elaeagnus angustifolia.

Elaeagnus angustifolia L. Russian Olive.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, between US Highway 6 and Lookout Mountain, 2.2 km. south of the GNIS location of Golden. 39.7358N, 105.2191W. WGS 1984 Elev. 1801 m. Several trees beside ephemeral creek in a distal part of the Survey Field. Colorado Noxious Weed List B.

Literature Cited:
- Weakley, Alan S., Richard J. LeBlond, Bruce A. Sorrie, C. Theo Witsell, L. Dwayne Estes, Janchi Gandhi, Katherine Gould Mathews, and Atsushi Ebihara, 2011.  

1438  Field identification: Onosmodium bejarense var. occidentale.

Onosmodium bejariense DC. ex A. DC. var. occidentale (Mack.) B. L. Turner. Western Marbleseed.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, between US Highway 6 and Lookout Mountain, 2.2 km. south of the GNIS location of Golden. 39.7359N, 105.2194W. WGS 1984 Elev. 1803 m. On a small terrace beside an ephemeral creek.

Probably should be determined Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes, per Weakley, et al., 2011.

  1439  Field identification: Harbouria trachypleura.

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

Colorado School of Mines Survey Field, Jefferson County, Colorado. Eastern, lower section of the Survey Field, between US Highway 6 and Lookout Mountain, 2.35 km. south of the GNIS location of Golden. 39.7344N, 105.2192W. WGS 1984 Elev. 1819 m. Uncommon. Steep northwest facing slope above ephemeral creek from Lookout Mountain.


Full Size ImageColl. No. 1440, Delphinium carolinianum ssp. virescens  
1440  Field identification: Delphinium virescens.

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

Colorado School of Mines Survey Field, Jefferson County, Colorado. Extreme southeastern corner of the Survey Field, between US Highway 6 and Lookout Mountain, 2.35 km. south of the GNIS location of Golden. 39.7331N, 105.2175W. WGS 1984 Elev. 1815 m. Very red fine-grained soil, south-facing slope. Uncommon, only plant seen.


Full Size ImageColl. No. 1441, Hesperis matronalis  
1441  Field identification: Erysimum capitatum. Hah!

Hesperis matronalis L. Dame's Rocket.

Deadman Gulch, Jefferson County, Colorado. Adjacent to a small artificial pond in Deadman Gulch, about 150 m. upstream of the gulch undercrossing of US Highway 6, 2.5 km. south of the GNIS location of Golden. 39.7336N, 105.2158W. WGS 1984 Elev. 1794 m. Purple wall flower. The pond was reconstructed by the City of Golden late in 2016. Deadman Gulch is locally euphemistically referred to as Kinney Run. Colorado Noxious Weed List B.

Coll. No. 1441, 15 June 2016, characters observed: Perennial herb, to 50 cm., hairs, forked on stem, leaf, and sepal, but not fruit; Leaves, basal, withered at flowering, cauline, petiole 3-5 mm. + blade 100 mm. × 35 mm. wide, lanceolate, margin, small-toothed; Inflorescence, raceme; Sepals, #4, 5-6 mm., green, margins purple; Petals, #4, 13 mm. × 4 mm. wide, clawed, purple; Fruit, silique, 40 mm. × 0.6 mm. wide; Seed, 1.7 mm., brown, glabrous.

 

 

Other articles: US Highway 64 Taos

Locations: Taos.  

Saturday, June 18th

 

Other articles: Paseo del Pueblo Norte Taos Pueblo

Locations: Taos Pueblo.
Full Size ImageSan Geronimo Chapel  

Full Size Image
West Pueblo at Taos
Visit to Taos Pueblo.

Other articles: US Highway 64 at bridge

Locations: Rio Grande Gorge Bridge.
Full Size ImageRio Grande Gorge Bridge  

Full Size Image
Rafters on the Rio Grande River below the bridge.
Rio Grande Gorge Bridge

Other articles: State Road 68 at St Francis de Asis

Locations: San Francisco de Asissi Church.
Full Size ImageSan Francisco de Asis Church  

Full Size Image
San Francisco de Asis Church
Full Size Image
Adobe building in the plaza of San Francisco de Asis Church.
San Francisco de Asis Church in Ranchos de Taos.

 

   

Sunday, June 19th

 

Other articles: US Highway 84 at Ghost Ranch

Locations: Ghost Ranch.
Full Size ImageCabin rented by Georgia O'Keefe at Ghost Ranch.  

Full Size Image
View painted by Georgia O'Keefe.
Ghost Ranch

Other articles: County Road 98 El Santuario de Chimayo Historic Site

Locations: El Santuario de Chimayo Historic Site.
Full Size ImageSanto Nino Church in Chimayo  

Full Size Image
General view of Chimayo.
Full Size Image
Inside of a chapel in Chimayo.
Chimayo

 

 

Locations: North Table Mountain Park.  

Wednesday, June 22nd

North Table Mountain, with Greg McKittrick, JCOS.

Other articles: North Table Mountain Trail near pk bdy
Full Size ImageColl. No. 1442, Apocynum floribundum  

1442  Field identification: Apocynum cannabinum.

Apocynum floribundum Greene. Dogbane.

North Table Mountain Park, Jefferson County, Colorado. Western side of North Table Mountain, in roadside ditch along road to City of Golden water tank, 2.8 km. north of the GNIS location of Golden. 39.7798N, 105.228W. WGS 1984 Elev. 1853 m.

Coll. No. 1442, 22 June 2016, characters observed: Perennial herb, to 35 cm.; Leaves, cauline, opposite, spreading horizontal, petiole 2 mm. + blade 50 mm. × 24 mm. wide, ovate, margin revolute; Sepals, 2.5 mm.; Flowers, bell-shaped, 6 mm. × 5 mm. wide, >2× calyx; Petals, fused at base, tube  mm. + lobes 2 mm., pink, drying purple, lobes erect to spreading, none reflexed; Stamens, 5. Filaments, distinct; More like A. androsaemifolium than A. cannabinum, but it seems to best fit the description of the hybrid A. floribundum.

  1443  Field identification: Astragalus laxmannii var. robustior.

Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh. Prairie Milkvetch.

North Table Mountain, Jefferson County, Colorado. Southwest slopes of North Table Mountain, 2 km. north of the GNIS location of Golden. 39.7731N, 105.2254W. WGS 1984 Elev. 1905 m. Grassy slopes with Prinus americana and Rhus trilobata.

  1444  Field identification: Calochortus gunnisonii.

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

North Table Mountain, Jefferson County, Colorado. Southwest slope of North Table Mountain, just below the basalt rim, where a social trail climbs through the rim from the City of Golden North Table Mountain trail, 1.7 km. north of the GNIS location of Golden. 39.7708N, 105.2225W. WGS 1984 Elev. 1922 m. Mixed grasses and forbs.

Other articles: Field Notes Coll. No. 1401, 8 Jun 2016
Full Size ImageHabitat of Coll. No. 1445, Eriogonum umbellatum  

1445  Field identification: Eriogonum umbellatum.

This is a mixed collection of E. umbellatum and E. flavum. See also Coll. No. 1401.

  1445.1  Eriogonum arcuatum Greene. Baker's Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. 39.7706N, 105.2213W. WGS 1984 Elev. 1967 m. Growing in thin soils and cracks on top of the uppermost basalt flow, with E. umbellatum var. umbellatum.


Full Size ImageInflorescence of Coll. No. 1445, Eriogonum umbellatum var. umbellatum
Full Size ImageColl. No. 1445, Eriogonum umbellatum var. umbellatum  
1445.2  Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. 39.7706N, 105.2213W. WGS 1984 Elev. 1967 m. Growing in thin soils and cracks on top of the uppermost basalt flow, with E. arcuatum.


Full Size ImageColl. No. 1446, Glyceria striata  
1446  Field identification: Glyceria striata.

Glyceria striata (Lam.) Hitchc. Striate Manna Grass.

North Table Mountain Park, Jefferson County, Colorado. Southern part of the mesa where several watercourses join to enter an unnamed canyon draining southeast to Clear Creek, 1.8 km. north of the GNIS location of Golden. 39.7717N, 105.2163W. WGS 1984 Elev. 1936 m. Very small perennial wetland, grass forming tussocks in an area several meters across.

Coll. No. 1446, 22 Jun 2016, characters observed: Perennial grass, to 1 m.; Leaf, sheath closed, ligule membraneous, blade, 3 mm. wide; Inflorescence, loose panicle; Spikelets, one per node on short pedicels, laterally compressed, 2+ fertile florets, all similar; Glumes, #2, lower < upper, lower 1-nerved; Disarticulation, above the glumes; Lemma, 7-nerved, well-developed, evenly spaced, apices prow-shaped, awns, 0.

  1447  Field identification: 2 different ferns, soriae present on one.

Woodsia oregana D.C. Eaton ssp. cathcartiana (B.L. Rob.) Windham. Rocky Mountain Woodsia.

North Table Mountain Park, Jefferson County, Colorado. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. 39.7712N, 105.2148W. WGS 1984 Elev. 1926 m. East-facing rock crevices.


Full Size ImageColl. No. 1447.1, Fern, perhaps Cystopteris fragilis  
1447.1  Fern, maybe Cystopteris fragilis (L.) Bernh. Brittle Bladderfern.

North Table Mountain Park, Jefferson County, Colorado. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. 39.7712N, 105.2148W. WGS 1984 Elev. 1926 m. East-facing rock crevices.

Other articles: North Table Loop near creek
Full Size ImageColl. No. 1448, Mimulus floribundus  

1448  Field identification: Mimulus floribundus.

Mimulus floribundus Lindl. Many Flowered Monkey Flower.

North Table Mountain Park, Jefferson County, Colorado. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. 39.7714N, 105.215W. WGS 1984 Elev. 1924 m. Growing in running water at the junction of two small ephemeral streams.

Coll. No. 1448, 22 June 2016, characters observed: Annual, of wet places, 10-30 cm.; Leaves, opposite, cauline, lower, petiole 8 mm. + blade 9 mm. × 8 mm. wide, orbicular-ovate; upper, nearly sessile; Calyx, upper lobe 4.7-8.0 mm., lower lobe 3.7-6.4 mm.; Corolla, 10 mm., yellow; Fruit, pedicel, 8 mm.

  1449  Field identification: Prunella vulgaris.

Prunella vulgaris L. Common Selfheal.

North Table Mountain Park, Jefferson County, Colorado. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. 39.7715N, 105.215W. WGS 1984 Elev. 1924 m. Growing in running water at the junction of two small ephemeral streams.

Other articles: North Table Loop near creek
Full Size ImageColl. No. 1450, Carex, maybe C. brevior  

1450  Field identification: Carex, maybe C. brevior, but my collection included no roots, so it wasn't good to deposit at a herbarium.

Carex breweri Boott. Brewer's Sedge.

North Table Mountain Park, Jefferson County, Colorado. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. 39.7715N, 105.215W. WGS 1984 Elev. 1924 m. Growing in running water at the junction of two small ephemeral streams.


Full Size ImageColl. No. 1451, Rorippa tenerrima  
1451  Field identification: Rorippa sinuata.

Rorippa tenerrima Greene. Modoc Yellowcress.

North Table Mountain Park, Jefferson County, Colorado. 2.4 km. north northeast of the GNIS location of Golden. 39.776N, 105.2133W. WGS 1984 Elev. 1965 m. Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side.

Coll. No. 1451, 22 Jun 2016, characters observed: Annual, to 15 cm., generally glabrous throughout; Leaves, basal unknown, cauline, largest, petiole 26 mm + blade 60 mm. × 24 mm. wide, oblanceolate in shape, deeply pinnately lobed, reduced above; Inflorescence, raceme, ebractwate; Sepal, 0.7 mm.; Petals, 0.8 mm., color unknown, drying purple; Stamens, #6; Fruit, 7 mm. × 1.3 mm. wide, terete, ascending, not constricted, papillate; Ovules, #21


Full Size ImageColl. No. 1452, Plagiobothrys scouleri var. hispidulus  
1452  Field identification: Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. Var. hispidulus (Greene) Dorn.

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. hispidulus (Greene) Dorn. Scouler's popcornflower.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. 39.776N, 105.2132W. WGS 1984 Elev. 1961 m. Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side.

Coll. No. 1452, 22 June 2016, characters observed: Annual, to 10 cm., ±appressed hairy throughout; Stem, decumbent to ascending, not winged; Leaves, basal, unknown, cauline, alternate, 35 mm. × 2.5 mm. wide, linear; Calyx, lobes #4, in fruit, 3 mm.; Corolla, very small, white; Style, 0.4 mm., entire; Nutlets, #4, 1.8 mm., attachment baso-lateral, tuberculed abaxially (not hooked or barbed). Treated as ssp. penicillata in Weber&Wittmann (2012), at rank of species in California (Baldwin, et al., 2012).


Full Size ImageColl. No. 1452.1, Myosurus minimus  
1452.1  Myosurus minimus L. Tiny Mousetail.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. 39.776N, 105.2132W. WGS 1984 Elev. 1961 m. Accidental collection. Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side.


Full Size ImageColl. No. 1453, Hordeum pusillum  
1453  Field identification: grass.

Hordeum pusillum Nutt. Little Barley.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, in the lower, southeast corner of an area disturbed by removal of soil that straddles the Tilting Mesa Trail, 2.4 km. north northeast of the GNIS location of Golden. 39.777N, 105.2151W. WGS 1984 Elev. 1975 m.

Coll. No. 1453, 22 June 2016, characters observed: Annual, to 15 cm.; Leaves, sheath, open, 31 mm., ligule, membraneous, 0.7 mm., auricles, ±0; blade, 51 mm.; Inflorescence, dense 2-sided spike, 46 mm. × 5 mm. wide, base inserted in upper leaf sheath; Spikelets, 3 per node, central spikelet, sessile, fertile, 1 floret, lateral spikelets, pedicelled, sterile; Glumes, #2, body 5 mm. + awn 7 mm. = 12 mm., straight. Native. Type collected by Nuttall in 1810 “on the arid and saline plains of the Missouri” (Nuttall, 1818, p. 87-88).

 

 

Locations: Ranson/Edwards Homestead Open Space Park.  

Monday, June 27th

Ranson/Edwards Homestead Open Space Park.

Other articles: Plainview Road near coll loc
Full Size ImageFlowerhead of Coll. No. 1454, Gaillardia aristata  

1454  Field identification: Gaillardia aristata.

Gaillardia aristata Pursh. Blanketflower.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the south side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8896N, 105.2594W. WGS 1984 Elev. 1899 m. Mostly grasses and forbs; collected with Rosa arkansana and Crataegus succulenta.

Other articles: Plainview Road near coll loc Field Notes Coll. No. 1462, 27 Jun 2016
Full Size ImageGeneral appearance of Coll. No. 1455, Crataegus succulenta  

1455  Field identification: Crataegus, likely C. succulenta per synonomy in Ackerfield (2015).

Crataegus succulenta Schrad. ex Link. Fleshy Hawthorn.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the south side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8896N, 105.2594W. WGS 1984 Elev. 1928 m. Discarded, sterile. See Coll. No. 1462 for material with fruit.

Other articles: Plainview Road near coll loc
Full Size ImageColl. No. 1456, Rosa arkansana  

1456  Field identification: Rosa arkansana.

Rosa arkansana Porter. Prairie Rose.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the south side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8895N, 105.2593W. WGS 1984 Elev. 1933 m. Petal attachment tenuous making good flower collections difficult.

Coll. No. 1456, 27 June 2016, characters observed: Low-growing perennial, to 20 cm.; Stem, straight slender unequal prickles, present on new growth; Leaves, alternate, compound, leaflets (7-8) 9, 20 mm. × 9 mm. wide, serrate, teeth dark-tipped, unclear whether there is glandular exudate, sparsely villous on both sides; Flowers, in clusters of 2-5; Sepals, 16 mm. × 3 mm. wide, abaxial, stalked glandular, adaxial, glandular hairy; Petals, 28 mm. × 21 mm. wide, color pink.

  1457  Field identification: Prunella vulgaris.

Prunella vulgaris L. Common Selfheal.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8899N, 105.2594W. WGS 1984 Elev. 1932 m. On the edge of a spring-fed swale close to an ephemeral stream.

Other articles: Plainview Road near coll loc
Full Size ImageInflorescence of Coll. No. 1458, Trifolium pratense  

1458  Field identification: Trifolium pratense.

Trifolium pratense L. Red Clover.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8899N, 105.2593W. WGS 1984 Elev. 1928 m. On the edge of a spring-fed swale close to an ephemeral stream.

Coll. No. 1458, 27 June 2016, characters observed: Perennial herb, erect, to 50 cm., hairs not hooked at tips; Stem, spreading hairy; Stipules, 21 mm. × 5 mm. wide, connate, scarious with several green nerves; Leaves, ternately compound, leaflets, 38 mm. × 20 mm. wide, margins slightly wavy tip short mucronate (easier to see on young leaves), both sides long wavy hairy; Heads, sessile, subtended by stipules and a pair of leaves, many flowers; Fruit, unknown. Introduced.

Literature Cited:
- Ackerfield, Jennifer, 2015.  

1459  Field identification: Pediomelum tenuiflorum.

Psoralidium tenuiflorum (Pursh) Rydb. Slimflower Scurfpea.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 215 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8901N, 105.2592W. WGS 1984 Elev. 1938 m. Dry alluvial terrace above watercourse.

Coll. No. 1459, 27 June 2016, characters observed: Perennial herb, erect, to 50 cm., orange punctate glands throughout; Stipules, 4 mm. × 0.7 mm. wide; Leaves, ternately compound, leaflet, 35 mm. × 7 mm. wide, margins, entire, reduced above; Calyx, 3 mm., in fruit, 4 mm.; Flowers, 5 mm., blue; Fruit, legume, immature, 4 mm. × 1 mm. wide. Determined Psoralidium tenuiflorum (Pursh) Rydb. per Ackerfield (2015).

Other articles: Plainview Road near coll loc
Full Size ImageColl. No. 1460, Cirsium undulatum  

1460  Field identification: Cirsium undulatum.

Cirsium undulatum (Nutt.) Spreng. Wavy Leaved Thistle.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.3 mi. north on Plainview Road, then 195 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.8901N, 105.2595W. WGS 1984 Elev. 1937 m. Mixed grasses and forbs on a dry alluvial terrace.

Coll. No. 1460, 27 June 2016, characters observed: Perennial thistle, to 30 cm., stout tap root; Stem, leafy, 20 cm.; Leaves, basal and cauline, basal, petiole 25 mm. + blade 180 mm. × 55 mm. wide, oblanceolate, pinnately lobed more than half-way to mid-rib, cauline, reduced above, decurrent 5 mm., 45 mm. × 14 mm. wide, lanceolate, surface, adaxial, thinly tomentose, abaxial, tomentose, margins, spiny; Head, 35 mm. × 40 mm. wide, indented around top of peduncle; Phyllaries, many (7?) series, 13 mm. × 3.5 mm. wide, + robust spine 5-6 mm., body dark dorsal ridge, outer and middle reflexed; Flowers, 1 kind; Disk flowers, 25-36 mm., corolla pink-purple; Pappus, plumose bristles; Cypsela, 5 mm., apical collar unremarkable.

Other articles: Plainview Road near coll loc
Full Size ImageColl. No. 1461, Bromus japonicus  

1461  Field identification: Bromus japonicus.

Bromus japonicus Thunb. Japanese Cheat Grass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.3 mi. north on Plainview Road, then 170 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. 39.89N, 105.2597W. WGS 1984 Elev. 1937 m. Mixed grasses and forbs on a dry alluvial terrace.

Other articles: Field Notes Coll. No. 1455, 27 Jun 2016
Full Size ImageFruit of Coll. No. 1462, Crataegus succulenta  

1462  Field identification: Crataegus succulenta

Crataegus succulenta Schrad. ex Link. Fleshy Hawthorn.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road; 15.2 km. north northwest of the GNIS location of Golden. 39.8893N, 105.2616W. WGS 1984 Elev. 1944 m. Same as Coll. No. 1455; this collection has fruit. Scattered along ephemeral steam.

Other articles: Plainview Road at old ranch rd
Full Size ImageHabitat of Coll. No. 1463, Silene vulgaris
Full Size ImageColl. No. 1463, Silene vulgaris  

1463  Field identification: Silene antirrhina, Nope!

Silene vulgaris (Moench) Garcke. Maidens Tears.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 250 m. east on old ranch road; 15.2 km. north northwest of the GNIS location of Golden. 39.884N, 105.2595W. WGS 1984 Elev. 1936 m. Mixed grasses and forbs beside the old road, on the accessible side of a gate that prevents cows from going down to Coal Creek.

Coll. No. 1463, 27 June 2016, characters observed: Perennial herb, erect, to 55 cm., generally glabrous throughout; Stem, lacking dark sticky band, most, i.e., 7/8 stems, simple unbranched; Stipules, 0; Leaves, basal, unknown, cauline, opposite, 44 mm. × 6-7 mm. wide, sessile, bases connate; Calyx, tube 8 mm. × 5.5 mm. wide + lobes 2 mm. somewhat inflated, many green veins, not particularly prominent; indented around peduncle (when pressed and dry); Corolla, 13 mm., limb 6 mm., white; Stamens, #10, exserted; Filaments, white (definitely not purple); Seeds, 1 mm., brown, papillate.

Other articles: Plainview Road at old ranch rd
Full Size ImageHabit of Coll. No. 1464, Amorpha fruticosa
Full Size ImageInflorescence of Coll. No. 1464, Amorpha fruticosa  

1464 
Full Size Image
Habitat of Coll. No. 1464, Amorpha fruticosa
Field identification: Amorpha fruticosa.

Amorpha fruticosa L. False Indigo.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 390 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. 39.8845N, 105.2584W. WGS 1984 Elev. 1922 m. In dense vegetation of mostly willows on the edge of an abandoned channel of Coal Creek.

Coll. No. 1464, 27 June 2016, characters observed: Woody shrub, to 2 m.; Leaves, alternate, compound, leaflets, #13, 26 mm. × 16 mm. wide, elliptic-ovate, mid-rib extended as a short slender mucro, eglandular, short soft hairy, sparse adaxially, less sparse abaxially; Inflorescence, racemes, Calyx, 3 mm., minutely hairy, few gland-dotted distally; Flowers, purple; Banner, 6 mm.

Other articles: Plainview Road at old ranch rd
Full Size ImageColl. No. 1465, Silene sp.  

1465  Field identification: Saponaria officinalis some kind of Silene look at Weber & Wittman (2012, p. 154), Conosilene, for the conical capsule.

Silene . Catchfly.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 345 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. 39.8841N, 105.2585W. WGS 1984 Elev. 1923 m. In dense vegetation at edge of old road.

  1466  Field identification: Apocynum cannabinum

Apocynum floribundum Greene. Dogbane.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 340 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. 39.884N, 105.2586W. WGS 1984 Elev. 1929 m. Leaves spreading, not drooping; corolla lobes erect to spreading, not reflexed. In dense vegetation at edge of old road.

 

 

Other articles: CO Highway 91 at Fremont Pass

Locations: Fremont Pass.
Full Size ImageClimax Mine at Fremont Pass.  

Tuesday, June 28th

Enroute to Leadville.

 

 

Other articles: County Route 3 at CR 3E County Route 3C at Monarch Mine

Locations: Diamond Mine. Evans Gulch. Monarch Mine. Turquoise Lake.
Full Size ImageView west down Evans Gulch to the Sawatch Range  

Wednesday, June 29th

Full Size Image
Evans Gulch and Mosquito Pass
Full Size Image
Diamond Mine in Evans Gulch
Full Size Image
View across Evans Gulch to the Monarch Mine
Full Size Image
View northeast across Evans Gulch from the Monarch Mine
Full Size Image
Tipple at Monarch Mine
Full Size Image
Turquoise Lake on the west side of Leadville.
Full Size Image
Mill and reclaimed tailings pond in Iowa Gulch.
Leadville, and vicinity.

Other articles: County Route 3 at CR 3E
Full Size ImageInflorescence parts of Coll. No. 1467, Castilleja miniata
Full Size ImageColl. No. 1467, Castilleja miniata  

1467  Field identification: Castilleja, probably C. integra

Castilleja miniata Hook. Giant Red Indian Paintbrush.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2603N, 106.2198W. WGS 1984 Elev. 3415 m. Southeast-facing open slope with mostly forbs.

Coll. No. 1467, 29 June 2016, characters observed: Perennial herb, to 30 cm., glandular hairy, sometimes tangled, more dense distally; Leaves, cauline, alternate, sessile, 35 mm. × 4.7 mm. wide, some entire, some with pair of lateral lobes; Bract, subtending flower, 26 mm. × 11 mm. wide, ovate, entire, or 1 pair lateral lobes, green becoming reddish-orange distally; Calyx, 22 mm. × 6.5 mm. wide, tube 12 mm. + lobes 10 mm., upper and lower lobes ±equal, color unremarkable, except reddish at tip; Corolla, 30 mm. upper lip(s) 9 mm., lower lip, 3 short teeth, 3 mm.

Does not fit easily into any Castilleja recognized in Colorado. Most like C. miniata or perhaps C. miniata × rhexifolia.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1468, Androsace septentrionalis  

1468  Field identification: Androsace, probably A. occidentalis.

Androsace septentrionalis L. Pygmyflower Rockjasmine.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.2199W. WGS 1984 Elev. 3436 m. Southeast-facing open slope with mostly forbs.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1469, Cymopterus lemmonii
Full Size ImageUmbel of Coll. No. 1469, Cymopterus lemmonii  

1469  Field identification: Lomatium ?

Cymopterus lemmonii (J. M. Coult. & Rose) Dorn. Alpine False Springparsley.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2603N, 106.2199W. WGS 1984 Elev. 3445 m. Southeast-facing open slope with mostly forbs.

Coll. No. 1469, 29 June 2016, characters observed: Perennial herb, to 15 cm., glabrous throughout, except very slightly scabrous at top of peduncle and on ribs of some rays; Pseudoscape, absent; Leaves, basal and cauline, 40 mm. × 25 mm. wide, obovate, compound, leaflets, #7, ultimate divisions narrowly lanceolate; Inflorescence, compound umbel; Involucre, bracts, 1.7 mm., linear (but not pinnafitid); Rays, ascending-spreading, ±equal; Involucel, bractlets green, inconspicuous, 1 mm.; Corolla, petals, #5, 1 mm. × 0.6 mm. wide, yellow; Stamens, #5; Filaments, recurved; Ovary, glabrous; Stylopodium, absent (?); Fruit, unknown.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1470, Geum triflorum  

1470  Field identification: Ranunculaceae. Hah!

Geum triflorum Pursh. Old Man's Whiskers.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.2198W. WGS 1984 Elev. 3447 m. Southeast-facing open slope with mostly forbs. Unclear as to variety if infraspecific taxa are to be recognized. Clump contains accidental collections of Astragalus alpinus and Leptosiphon nuttallii.

Coll. No 1470, 29 June 2016, characters observed: Perennial herb, to 20 cm., pilose; Leaves, basal, petiole 20 mm. + blade 70 mm. × 25 mm. wide, pinnately compound, leaflets, 15 mm. × 9 mm. wide, deeply lobed, terminal leaflet 3-lobed at tip; flowering stem, opposite; Sepals, #5, 7 mm. × 2.5 mm. wide; Flowers, nodding; Petals, 6 mm. × 3.7 mm. wide, white; Stamens, many; Styles, many, (in fruit) unknown; Fruit, unknown.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1470.1, Leptosiphon nuttallii var. nuttallii  

1470.1  Leptosiphon nuttallii (Gray) J. M. Porter & L. A. Johnson ssp. nuttallii. Nuttall's Linanthus.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.2198W. WGS 1984 Elev. 3447 m. Southeast-facing open slope with mostly forbs.

Coll. No. 1470.1, 29 June 2016, characters observed: Perennial herb, to 15 cm., woody at base; Leaves, well-developed, cauline, opposite, 3-lobed, lobes 12 mm. × 0.8 mm. wide, soft, tip acute, some appearing spinulose; Inflorescence, head-like, not tomentose; Calyx, lobes, 8 mm. × 1.2 mm. wide; Corolla, white, tube 7 mm. + lobes 5 mm. × 3 mm. wide, limb 11 mm. wide.

Other articles: County Route 3 at CR 3E
Full Size ImageInflorescence of Coll. No. 1471, Astragalus alpinus
Full Size ImageColl. No. 1471, Astragalus alpinus  

1471  Field identification: Astragalus

Astragalus alpinus L. Alpine Milkvetch.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2603N, 106.2198W. WGS 1984 Elev. 3446 m. Southeast-facing open slope with mostly forbs.

Coll. No 1471, 29 June 2016, characters observed: Perennial herb, to 12 cm., caulescent, hairs basifixed; Leaves, cauline, stipules, 5 mm., connate opposite petiole, alternate, to 80 mm., compound, leaflets, #21, 5 mm. × 3 mm. wide, ovate; Calyx, tube 2 mm. + lobes 1 mm. mostly black hairy, few white hairs; Flowers, spreading to deflexed; Banner, 5 mm + 4 mm. reflexed, blue; Wings, 8 mm. yellowish-white, apex obtuse; Keel, 8.5 mm., > wings, blue distally; Fruit, unknown.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1472, Polemonium viscosum  

1472  Field identification: Polemoniaceae.

Polemonium viscosum Nuttall. Sky Pilot.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.2198W. WGS 1984 Elev. 3444 m. Southeast-facing open slope with mostly forbs.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1473, Fragaria virginiana  

1473  Field identification: Potentilla well there was a Potentilla, see Coll. No. 1473.1.

Fragaria virginiana Mill. Virginia Strawberry.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2603N, 106.2197W. WGS 1984 Elev. 3442 m. Southeast-facing open slope with mostly forbs.

Other articles: County Route 3 at CR 3E
Full Size ImageAccidental Coll. No. 1473.1, Potentilla sp.  

1473.1  Accidental collection of something that looks like a Potentilla.

Potentilla L. Cinquefoil.

Evans Gulch, Lake County, Colorado. Mosquito Range, middle section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2603N, 106.2197W. WGS 1984 Elev. 3442 m. Southeast-facing open slope with mostly forbs. Accidental collection.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1474, Valeriana edulis var. edulis  

1474  Field identification: Valeriana ?

Valeriana edulis Nuttall. [var. edulis, if infraspecific taxa are recognized] Tobacco Root.

Evans Gulch, Lake County, Colorado. Mosquito Range, mid-section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2602N, 106.22W. WGS 1984 Elev. 3440 m. Southeast-facing open slope with mostly forbs. Variety edulis if infraspecific taxa are recognized.

Coll. No. 1474, 29 Jun 2016, characters observed: Perennial herb, to 60 cm.; Stem, glabrous; Leaves, basal, petiole 11 cm. + blade 15 cm. × 2.6 cm. wide, narrowly obovate, cauline, in 2 pairs, pinnafitid, segments narrow; Inflorescence, panicle (definitely not a corymb); Flowers, perfect; Corolla, tube 2 mm. + lobes 1.2 mm., white, somewhat hairy proximal outside; Stamens, ±exserted; Fruit, unknown.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1475, Anemone multifida var. multifida  

1475  Field identification: Ranunculaceae.

Anemone multifida Poir. Pacific Anemone.

Evans Gulch, Lake County, Colorado. Mid-section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.2199W. WGS 1984 Elev. 3441 m. Southeast-facing open slope with mostly forbs. Var. multifida if infraspecific taxa are to be recognized.

Other articles: County Route 3 at CR 3E
Full Size ImageColl. No. 1476, Senecio integerrimus  

1476  Field identification: Packera sp.

Senecio integerrimus Nutt. [var. exaltatus (Nutt.) Cronquist if infraspecific taxa are to be recognized]. Columbia Ragwort.

Evans Gulch, Lake County, Colorado. Mid-section of Evans Gulch, near Conley Lakes and the Diamond Mine, 4.6 mi. by road east of the GNIS location of Leadville. 39.2604N, 106.22W. WGS 1984 Elev. 3443 m. Southeast-facing open slope with mostly forbs. Var. exaltatus (Nutt.) Cronquist if infraspecific taxa are to be recognized.

Coll. No. 1476, 29 Jun 2016, characters observed: Short-lived perennial, 25-35 cm., roots, unbranched, fibrous, pubescence floccose or arachnose, appearing to thin with age; Leaves, basal, petiole 15 mm., + blade 50 mm. × 25 mm. wide, margin entire or slightly wavy, with reddish spots every 2-5 mm. (is this the callous denticle?), cauline, reduced above to sessile, narrowly lanceolate, 40 mm. × 5 mm. wide; Inflorescence, terminal corymb; Peduncles, to 18 mm., black exudate; Heads, #7-8, radiate; Involucre, 9 mm. × 10 mm. wide; Phyllaries, in 1 series, 9 mm. × 1.2-2.2 wide, tip black; Flowers, 2 kinds Rays, #9, fertile; Corolla, yellow, tube 3.5 mm. + blade 5 mm. = 8.5 mm.; Disk, corolla yellow, lobes dark; Anther, base, rounded (not tailed); Pappus, capillary bristles, 4 mm.

Other articles: County Road 1A at Coll. No, 1477
Full Size ImageColl. No. 1477, Potentilla glaucophylla var. glaucophylla
Full Size ImageColl. No. 1477, Potentilla glaucophylla var. glaucophylla  

1477  Field identification: Potentilla sp.

Potentilla glaucophylla Lehm. var. glaucophylla. Blue Leaf Cinquefoil.

Breece Hill, Lake County, Colorado. Near the top of Breece Hill, just west of the intersection of Lake County Roads 1A and 1B, 4.2 mi. by road from the GNIS location of Leadville. 39.2413N, 106.2365W. WGS 1984 Elev. 3576 m. Relatively less-disturbed full-sun meadow.

Coll. No. 1477, 29 Jun 2016, characters observed: Perennial herb, to 25 cm.; Flowering stems, ascending, reddish; Leaves, basal, petiole, 50 mm., sparsely hairy, blade, palmate, 25 mm. × 35 mm. wide, 5-7 leaflets, leaflets, incised, distal ½, about half-way to mid-vein, adaxial, very sparse hairy, abaxial, hairy mostly on veins, margins hairy, cauline, much reduced to sessile, ternately lobed, 17 mm.; Sepals, 5 mm. × 3 mm. wide, green, purplish on veins or at tips; Petals, 7 mm. × 8 mm. wide, bright yellow; Stamens, #20; Anthers, 0.7 mm.; Style, 2 mm., slender throughout, attached mid-achene.

Other articles: County Road 1A at Coll. No. 1478

Locations: Breece Hill.
Full Size ImageColl. No. 1478, Anemone narcissaflora var. zephyra  

1478 
Full Size Image
Coll. No. 1478, Anemone narcissiflora var. zephyra
Full Size Image
Coll. No. 1478, Anemone narcissiflora var. zephyra
Field identification: Potentilla sp.

Anemone narcissiflora L. var. zephyra (A. Nelson) B. E. Dutton & Keener. Narcissis Anemone.

Breece Hill, Lake County, Colorado. Roadside of Lake County Road 1A, near the top of Breece Hill, about 4.1 mi. by road from the GNIS location of Leadville. 39.2417N, 106.2345W. WGS 1984 Elev. 3565 m. Rocky forest floor.

Coll. No. 1478, 29 Jun 2016, characters observed: Perennial herb, to 35 cm.; Stem, thick, 4 mm.; Leaves, basal, petiole, 150 mm. × 3 mm. wide + blade 60 mm. × 75 mm. wide, (ternately?) divided, margins incised, involucre, single series of stem leaves whorled around inflorescence, sessile; Flowers, actinomorphic, 1-4 per stem; Sepals, petaloid, 12-17 mm., not spurred, white, drying light yellow; Fruit, unknown.

Other articles: County Road 2A at coll loc
Full Size ImageColl. No. 1479, Cerastium arvense ssp. strictum  

1479  Field identification: Stellaria sp.

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

Adelaide, Lake County, Colorado. Roadside in Stray Horse Gulch, along County Road 2A, just south of County Road 1, 3 km. east southeast of the GNIS location of Leadville. 39.2465N, 106.2583W. WGS 1984 Elev. 3328 m.

Other articles: County Road 2A at coll loc
Full Size ImageColl. No. 1480, Bistorta bistortoides  

1480  Field identification: Bistorta bistortoides.

Bistorta bistortoides (Pursh) Small.

Adelaide, Lake County, Colorado. Roadside in Stray Horse Gulch, along County Road 2A, just south of County Road 1, 3 km. east southeast of the GNIS location of Leadville. 39.2465N, 106.2582W. WGS 1984 Elev. 3327 m.

Other articles: County Route 3 at CR 3B W
Full Size ImageColl. No. 1481, Phacelia sericea
Full Size ImageColl. No. 1481, Phacelia sericea  

1481 
Full Size Image
Coll. No. 1481, Phacelia sericea
Field identification: unknown.

Phacelia sericea (Graham ex Hook.) A. Gray. Silky Phacelia.

Evans Gulch, Lake County, Colorado. Junction of County Road 3 and 3B, 2.8 mi. east of Leadville on County Road 3. 39.256N, 106.2448W. WGS 1984 Elev. 3307 m. In gravel of valley bottom land. Also collected here: Penstemon hallii A. Gray. Probably var. sericea if infraspecific taxa are recognized.

Coll. No. 1481, 29 June 2016, characters observed: Perennial herb, to 25 cm., from tap root, ±spreading hairy and lightly glandular throughout; Leaves, basal and cauline, basal, petiole 25 mm. + blade 30 mm. × 10 mm. wide, lanceolate, deeply pinnafitid, margins toothed, cauline, alternate, similar but reduced above; Inflorescence, panicle or thryse, not coiled; Calyx, 4 mm., lobes #5, 3.5 mm. × 0.5 mm. wide, Flowers, actinomorphic; Corolla, tube 3 mm. + lobes 1.5 mm. × 2 mm. wide, spreading, tip round, purple; Stamens, #5, alternate, exserted 5 mm.; Ovary, superior, 1.8 mm. × 1.3 mm. wide, hairy distally; Styles, #1, 8.5 mm., forked, hairy proximally; Stigma, thread-like; Seed, unknown.

Other articles: County Route 3 at CR 3B W
Full Size ImageColl. No. 1482, Penstemon hallii  

1482  Field identification: Penstemon.

Penstemon hallii A. Gray. Hall's Beardtongue.

Evans Gulch, Lake County, Colorado. Junction of County Road 3 and 3B, 2.8 mi. east of Leadville on County Road 3. 39.2559N, 106.2447W. WGS 1984 Elev. 3302 m. In gravel of valley bottom land.

Coll. No. 1482, 29 June 2016, characters observed: Perennial herb, caulescent, 8 to 15 cm., glabrous below, becoming glandular in inflorescence, but not hairy; Leaves, opposite, 20 mm. × 1.8 mm. wide, narrowly oblanceolate, reduced above; Inflorescence, 6-8 flowers per stem, somewhat one-sided; Pedicel, leafy, 4-9 mm.; Calyx, tube 1.0-1.5 mm. + lobes 4.0-5.5 mm., green to dark green with tinges of purple, chartaceous scalloped margins; Flowers, tube, 12 mm. + lobes 5-6 mm. × 8-9 mm., blue throughout, or yellow tube with blue lobes; Staminode, hairy at tip; Stamens, just reaching orifice of corolla, Anther, sacs, 1.6 mm. glabrous.

 

 

Other articles: Golden Checklist Flora survey field

Locations: Colorado School of Mines Survey Field.
Full Size ImageSouth end of Survey Field, south Golden, and South Table Mountain.  

Wednesday, July 6th

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Location of patch of Euphorbia myrsinites on lower slopes of Lookout Mountain.
Colorado School of Mines Survey Field.

Full Size ImageColl. No. 1483, Thelesperma megapotamicum  
1483  Field identification: Thelesperma megapotamicum.

Thelesperma megapotamicum (Spreng.) Kuntze. Hopi Tea Greenthread.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northern part of the Survey Field, above the access road, about 90 m. south of Lookout Mountain Road, 1.9 km. south southwest of the GNIS location of Golden. 39.7392N, 105.2278W. WGS 1984 Elev. 1844 m. Yellow comp., perennial, woody at base, finely divided leaves, outer phyllaries short, inner phyllaries appearing fused. Mixed prairie near the base of Lookout Mountain.

Coll. No. 1483, 6 Jul 2016, characters observed: Perennial herb, to 55 cm., woody at base, glabrous, eglandular; Leaves, opposite, pinnately lobed, lobes filiform, 30-35 mm.; Inflorescence, 1-3 heads per stem on 10 cm. peduncles; Phyllaries, 2 dimorphic series, without bristles or spines, outer, 2 mm. × 1.3 mm. wide, spreading, inner, 8 mm. × 3 mm. wide, connate 4.7 mm, tips erect; Receptacle, paleate, flat; Paleae, 7 mm. × 2 mm. wide, mid-vein greenish-brown, otherwise chartaceous; Flowers of 1 kind; Disc flowers, corolla, tube 3 mm. + throat 1 mm. + lobes 2 mm., color yellow with red-brown veins; Pappus, 2 retrorsely barbed awns; Cypsela, 3.8 mm.


Full Size ImageHabitat of Coll. No. 1484, Argemone polyanthemos
Full Size ImageFlower of Coll. No. 1484, Argemone polyanthemos
Full Size ImageLeaf-cutting bee cutting semi-circular segments from petals of Argemone polyanthemos.  
1484 
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Calochortus gunnisonii with semi-circular segments cut from petals.
Field identification: Argemone polyanthemos.

Argemone polyanthemos (Fedde) G.B. Ownbey. Crested Prickly Poppy.

Colorado School of Mines Survey Field, Jefferson County, Colorado. High plains at the base of the Rocky Mountain Front Range, 2.2 km. south southwest of the GNIS location of Golden 39.7366N, 105.2292W. WGS 1984 Elev. 1896 m. Stems dripping orange sap when cut.


Full Size ImageHabitat of Coll. No. 1485, Achillea millefolium  
1485  Field identification: Achillea millefolium.

Achillea millefolium L. Common Yarrow.

Colorado School of Mines Survey Field, Jefferson County, Colorado. High plains at the base of the Rocky Mountain Front Range, 2.4 km. south southwest of the GNIS location of Golden 39.7347N, 105.2296W. WGS 1984 Elev. 1921 m. Mixed shrubs and grasses on lower slopes of Lookout Mountain.


Full Size ImageColl. No. 1486, Eriogonum umbellatum var. umbellatum  
1486  Field identification: Eriogonum umbellatum.

Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Rocky lower slopes of Lookout Mountain, southwest corner of the Survey Field, 2.5 km. south southwest of the GNIS location of Golden 39.7335N, 105.2287W. WGS 1984 Elev. 1972 m. Steep slope, large plants.


Full Size ImageColl. No. 1487, Leymus triticoides  
1487  Field identification: grass.

Leymus triticoides (Buckley) Pilg. Beardless Wildrye.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Steep rocky lower slopes of Lookout Mountain, southwest corner of the Survey Field, 2.5 km. south southwest of the GNIS location of Golden 39.7334N, 105.2287W. WGS 1984 Elev. 1974 m.

Coll. No. 1487, 6 Jul 2016, characters observed: Perennial, to 90 cm., long scaly rhizomes not found, culms, 1.5 mm. dia., generally glabrous, except lemma minutely scabrous; Leaves, sheath, open, glabrous, ligule, membraneous, 0.8 mm., auricles, very small, blade, involute; Inflorescence, spike-like, 2-sided, 115 mm. × 8 mm. wide; Spikelets, in pairs, sessile; Glumes, #2, awl-like, lower, 8 mm., upper, 10 mm.; Disarticulation, above the glumes, between florets unclear; Florets, #5, + 1 rudimentary at top of rachilla; Lemma (largest), body 14 mm. + awn 2 mm., reduced above, veins 5, minutely scabrous; Palea, 11 mm., enclosing embryo, tip bifid.

Other articles: Survey Field Road 11000
Full Size ImageColl. No. 1488, Scirpus pallidus  

1488  Field identification: Scirpus, maybe S. pallidus or S. maritimus ssp. paludosus.

Scirpus pallidus (Britt.) Fern. Cloaked Bulrush.

Colorado School of Mines Survey Field, Jefferson County, Colorado. Northern part of the Survey Field at the base of Lookout Mountain, beside access road to central part of the field, 2.1 km. south southwest of the GNIS location of Golden. 39.738N, 105.2292W. WGS 1984 Elev. 1886 m. In a watercourse below a small spring, possibly natural, or possibly overflow from a city water tank.

 

   

Wednesday, July 13th

North Table Mountain, by way of North Table Loop, Tilting Mesa, Mesa Top, and North Table Loop trails.

Full Size ImageColl. No. 1489, Erigeron divergens  
1489  Field identification: Erigeron sp.

Erigeron divergens Torr. & A. Gray. Spreading Fleabane.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, along an old road and former powerline headed in the general direction of the radio station, 2.6 km. north of the GNIS location of Golden 39.7792N, 105.2173W. WGS 1984 Elev. 1945 m. In thin soils or cracks of basalt caprock, near the edge of prairie dog town.

Coll. No. 1489. 13 July 2016, characters observed: Annual or short-lived perennial, to 15 cm., tap-rooted, ±spreading hairy throughout, becoming minutely glandular above, hairs multicellular with clear crosswalls; Leaves, basal, absent or withered; cauline, alternate, petiole ±10 mm. + blade ±12 mm. × 2.4 mm. wide, uniformly hairy, somewhat reduced above; Inflorescence, heads borne singly on leafy stems, peduncles spreading or decurved, but cannot be described as “heads nodding;” Involucre, 3 mm. × limb 12 mm.; Receptacle, epaleate; Flowers, 2 kinds; Rays, corolla, 3.5 mm., white fading blue; Disk flowers, corolla, 1.7 mm., yellow; Pappus, short scales and longer capillary bristles, similar on ray and disk flowers; Cypsela, 0.8 mm.


Full Size ImageColl. No. 1490, Plantago patagonica  
1490  Field identification: Plantago patagonica.

Plantago patagonica Jacq. Woolly Plantain.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, along an old road and former powerline headed about 600 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden 39.7792N, 105.2172W. WGS 1984 Elev. 1972 m. In thin soils or cracks of basalt caprock, near the edge of prairie dog town.

Other articles: Tilting Mesa Trail along trail
Full Size ImagePonderosa pine on top of North Table Mountain.  

Ponderosa Pine to the west.

Full Size ImageOld road to radio tower.
Full Size ImageOld road and power line to radio tower.  
1491  Field identification: Paronychia jamesii.

Paronychia jamesii Torr. & A. Gray. Jame's Nailwort.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, along an old road and former powerline headed about 290 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden 39.7821N, 105.2168W. WGS 1984 Elev. 1981 m. Thin soils on top of the mesa.

  1492  Field identification: Eriogonum alatum.

Eriogonum alatum Torr. Winged Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, about mid-way between the radio tower and the large pond to the east, about 3.25 km. north of the GNIS location of Golden. 39.7843N, 105.2145W. WGS 1984 Elev. 1986 m. Uncommon, perennial, to 1.5 m., leaves mostly basal, inflorescence a panicle. Thin, dry soil, on top of basalt flow capping North Table Mountain.

Other articles: “Tilting Mesa Cut-Off” near pond
Full Size ImageColl. No. 1493, Achnatherum robustum  

1493  Field identification: grass.

Achnatherum robustum (Vasey) Barkworth. Sleepygrass.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. 39.7849N, 105.2135W. WGS 1984 Elev. 1979 m. Tall bunch grass, perennial, non-rhizomatous.

Coll. No. 1493, 13 Jul 2016, characters observed: Perennial grass, to 1.3 m., non-rhizomatous bunch grass; Leaves, sheath open, ligule membraneous, tuft of hairs abaxially, blade flat, upper 15 cm.; Inflorescence, panicle, 30 cm. × 2.5 cm.; Spikelets, 1 per node; Florets, 1 per spikelet, bisexual; Glumes, #2, lower, 8 mm. + awn 2.5 mm., veins, #3, thin, upper, ±similar; Disarticulation, above the glumes; Callus, sharp, 0.2 mm.; Lemma, enclosing grain, 6 mm. + awn 26 mm., twisted, short (0.1 mm.) hairy, color tan, tuft of hairs at base, middle sparse hairy, tuft of hairs at tip, lengths ±similar; Palea, 4 mm., hairy; Anthers, #3.

  1494  Field identification: Achillea millefolia.

Achillea millefolium L. Common Yarrow.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. 39.7849N, 105.2135W. WGS 1984 Elev. 1978 m.

  1495  Field identification: Scrophularia lanceolata.

Scrophularia lanceolata Pursh. Lanceleaf Figwort.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. 39.7849N, 105.2136W. WGS 1984 Elev. 1978 m. Fruit only, past flowering. Numerous plants here, many trampled by deer (?) or weed sprayers (?)

Other articles: “Tilting Mesa Cut-Off” near pond
Full Size ImageColl. No. 1496, Ratibida columnifera  

1496  Field identification: Ratibida columnifera.

Ratibida columnifera (Nutt.) Woot. & Standl. Upright Prairie Coneflower.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. 39.7849N, 105.2134W. WGS 1984 Elev. 1976 m.

Other articles: “Tilting Mesa Cut-Off” near pond
Full Size ImageColl. No. 1497, Ranunculus aquitilis var. diffusus  

1497  Field identification: Ranunculus aquatilis.

Ranunculus aquatilis L. var. diffusus With. Threadleaf Crowfoot.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, south edge of pond at base of north-facing rocky slope (fault scarp?), 3.3 km. north northeast of the GNIS location of Golden. 39.785N, 105.2136W. WGS 1984 Elev. 1975 m.

Other articles: “Tilting Mesa Cut-Off” near pond
Full Size ImageColl. No. 1498, Ranunculus cymbalaria  

1498  Field identification: Ranunculus cymbalaria.

Ranunculus cymbalaria Pursh. Alkali Buttercup.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7853N, 105.2142W. WGS 1984 Elev. 1976 m. In very wet soil at the edge of the pond.

Other articles: “Tilting Mesa Cut-Off” near pond
Full Size ImageColl. No. 1499, Elymus trachycaulus
Full Size ImageInflorescence of Coll. No. 1499, Elymus trachycaulus  

1499  Field identification: grass.

Elymus trachycaulus (Link) Shinners. Slender Wheatgrass.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7853N, 105.2142W. WGS 1984 Elev. 1973 m. In very wet soil at the edge of the pond.

Coll. No 1499, 13 Jul 2016, characters observed: Perennial grass, to 80 cm., tufted, not strongly rhizomatous; Leaves, sheath, open, ligule, membraneous, 0.5 mm., auricles, 1 mm., thin, blade, 12-15 cm., flat to involute; Inflorescence, 2-sided spike Rachis, internodes, 6 mm., scabrous on margins; Spikelets, 1 per node, 17 mm. × 3.5 mm. wide, laterally compressed, appear to be positioned edge-wise to rachis, but this may be a feature of pressing/drying; Florets, 7+ per spikelet; Glumes, #2, ±equal, 8 mm. × 1.2 mm. wide, rounded, veins, #5; Lemma, 9 mm., rounded, veins, #7, glabrous; Palea, ±=lemma; Anthers, 4 mm.

Ackerfield (2015) and Baldwin (2012) lead equivocally to E. trachycaulus, whereas Shaw (2008) and Weber & Wittmann (2012) are more suggestive of E. lanceolatus.

Other articles: Mesa Top Trail near pond
Full Size ImageColl. No. 1500, Potentilla norvegica  

1500  Field identification: Potentilla norvegica.

Potentilla norvegica L. Norwegian Cinquefoil.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7855N, 105.2142W. WGS 1984 Elev. 1968 m.

Coll. No. 1500, 13 July 2016, characters observed: Perennial herb, to 25 cm., erect, ±spreading stiff hairy throughout, 1.5 mm., glands, sparse, obscure; Leaves, cauline, stipules, large, 8 mm. × 4 mm. wide, lanceolate, petiole 19 mm. + blade 22 mm. × 24 mm. wide, ternately compound, leaflets, 3(4); Calyx, sepals, 3.5-4.0 mm. × 2 mm. wide, fused >½; Corolla, petals, free, yellow; 1.5 mm. × 1 mm. wide; Stamens, most seen, #8; Style, 0.7 mm., thickest at base; Achenes, 0.6 mm., tan, minutely papillate.

Other articles: Mesa Top Trail near pond
Full Size ImageColl. No. 1500.1, Hordeum pusillum  

1500.1  Field identification: grass.

Hordeum pusillum Nutt. Little Barley.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7855N, 105.2142W. WGS 1984 Elev. 1968 m.

Other articles: Mesa Top Trail near pond
Full Size ImageColl. No. 1500.2, Verbena bracteata  

1500.2  Field identification: Mint or verbena.

Verbena bracteata Lag. & Rodr. Large Bract Vervain.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7855N, 105.2142W. WGS 1984 Elev. 1968 m. Erect, perennial, damp soil near pond.

Coll. No. 1500.2, 13 July 2016, characters observed: Perennial herb, to 15 cm., erect; Leaves, cauline, opposite, petiole 5 mm. + blade 20 mm. × 10 mm. wide, pinnafitid, toothed; Bract, 11 mm. × 2.2 mm. wide, entire; Calyx, 4 mm. × 1.5 mm. wide; Corolla, lobes, #5 tube 4 mm. + throat 1 mm. + lobes 2 mm., limb, 2.5 mm., color blue; Introduced.

Usually seen as a prostrate trailside herb. However, this one was growing in grasses and herbs, and forced to adopt an erect habit.

  1501  Field identification: Dalea purpurea.

Dalea purpurea Vent. Purple Prairie Clover.

North Table Mountain Park, Jefferson County, Colorado. Along the Mesa Top Trail (radio tower access road), 135 m. northwest of the tower, 3.3 km. north of the GNIS location of Golden. 39.7851N, 105.2175W. WGS 1984 Elev. 1949 m. Edge of brush across roadside gulley. Accidental collections with this one: Aegilops cylindrica and Alyssum simplex.

Other articles: Mesa Top Trail along trail
Full Size ImageColl. No. 1502, Pseudotsuga menziesii “Douglas Fir”
Full Size ImageColl. No. 1502, Pseudotsuga menziesii var. glauca  

1502  Field identification: Pseudotsuga menziesii.

Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco. Douglas Fir.

North Table Mountain Park, Jefferson County, Colorado. North slope of North Table Mountain, 30 m. east of and above the Mesa Top Trail (radio tower access road), 3.4 km. north of the GNIS location of Golden. 39.7864N, 105.2208W. WGS 1984 Elev. 1916 m. In brush on moderate northwest slope, only such tree seen.

Other articles: North Table Loop near Mesa Top Trl  

1503  Field identification: Thelesperma megapotamicum “Hopi Tea Greenthread.”

Thelesperma megapotamicum (Spreng.) Kuntze. Hopi Tea Greenthread.

North Table Mountain Park, Jefferson County, Colorado. Northwest slope of North Table Mountain, near the intersection of the North Table Loop and the Mesa Top Trail, 3.7 km. north of the GNIS location of Golden. 39.7887N, 105.2216W. WGS 1984 Elev. 1854 m. Mixed grasses and forbs on the nose of a small ridge.

Other articles: North Table Loop near access road
Full Size ImageColl. No. 1504, Hymenopappus filifolius var. polycephalus  

1504  Field identification: looks like a Chaenactis, but not C. douglasii the only representative in Jefferson County.

Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner. Many-Headed Fine-Leaved Wooly-White.

North Table Mountain Park, Jefferson County, Colorado. Lower slopes on the west side of North Table Mountain, along side of North Table Loop, just a few meters north of the access road to the trailhead, 3.2 km. north northwest of the GNIS location of Golden. 39.7833N, 105.2298W. WGS 1984 Elev. 1835 m.

Coll. No. 1504, 13 July 2016, characters observed: Perennial herb, to 60 cm., ±tomentose throughout; Leaves, basal, petiole 35 mm. + blade 75 mm. × 30 mm. wide, very deeply pinnafitid, segments filiform, ultimate divisions 8-18 mm., cauline, #4-5, similar, reduced above, bases conspicuously tomentose; Inflorescence, heads borne singly on peduncles, 22-45 mm., #(5) 7 (15); Involucre, 8 mm. × 15 mm. wide; Receptacle, epaleate, flat; Phyllaries, 2 series, 7 mm. × 2.5 mm. wide; inner > outer, margins chartaceous, tips broad scarious; Flowers, 1 kind; Disk flowers, corolla, yellow; Pappus, scales, 1.2 mm.; Achenes, 5 mm., hairy all over, more so on the angles.

Ackerfield (2015) leads to Hymenopappus when the involucre bracts (phyllaries) have broad, scarious tips, whereas involucre bracts in Chaenactis are green and narrow, without scarious tips. Weber & Wittmann (2012) use the same characters. FNANM also uses the shape of the cypselae. Baldwin (2012) also uses the shape and margin of the phyllaries and, in addition, the corollas of Hymenopappus are yellow, whereas those of Chaenactis are white.

 

 

Other articles: County Road 284 at Crestone Golden Checklist Flora oth. trlhds. Mesa Spur Trail at W. 58th along trail North Table Loop at sm saddle

Locations: North Table Mountain. North Table Mountain Park.
Full Size ImageNorth Table Mountain from W. 58th Street  

Friday, July 22nd

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Trailhead of Mesa Spur Trail.
Full Size Image
Mesa Spur Trail
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View from small hill near North Table Loop.
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View from small hill, south east to Denver.
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The private pasture at left is a source of weeds bleeding into the adjacent open space.
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Eriogonum alatum
 

Other articles: Mesa Spur Trail 23000
Full Size ImageColl. No. 1505, Oenothera curtiflora
Full Size ImageInflorescence of Coll. No. 1505, Oenothera curtiflora  

1505  Field identification: Oenothera curtiflora.

Oenothera curtiflora W.L. Wagner & Hoch. Velvet Butterfly-Weed.

North Table Mountain Park, Jefferson County, Colorado. Lowest north slopes of North Tab;e Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.7971N, 105.2113W. WGS 1984 Elev. 1798 m. Very tall, single stem branched at the inflorescence, small-flowered, soft-hairy.

  1506  Field identification: Symphoricarpos occidentalis

Symphoricarpos occidentalis Hook. Western Snowberry.

North Table Mountain Park, Jefferson County, Colorado. Lowest north slopes of North Table Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.6 km. north northeast of the GNIS location of Golden. 39.7967N, 105.2112W. WGS 1984 Elev. 1807 m.

  1507  Field identification: Helianthus pumilus.

Helianthus pauciflorus Nutt. ssp. subrhomboideus (Rydb.) O. Spring & E. Schilling. Stiff Sunflower.

North Table Mountain Park, Jefferson County, Colorado. Near the top of several small hills (toe of landslide?) on the lower north slope of North Table Mountain, 0.7 km. southeast of the Mesa Spur Trailhead on 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. 39.7972N, 105.2071W. WGS 1984 Elev. 1851 m. Also at this location: Thelesperma megapotamicum, Eriogonum alatum, and E. effusum.

  1507.1  Field identification: Eriogonum effusum, immature.

Included with Coll. No. 1541 and sent to KHD to demonstrate characters of leaves.

  1508  Field identification: Asclepias pumila.

Asclepias pumila (A. Gray) Vail. Plains Milkweed.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, 0.79 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.65 km. north northeast of the GNIS location of Golden. 39.796N, 105.207W. WGS 1984 Elev. 1845 m. Growing in low grasses and forbs.

Other articles: North Table Loop w. of saddle
Full Size ImageColl. No. 1509, Psoralidium tenuiflorum
Full Size ImageFruit of Coll. No. 1509, Psoralidium tenuiflorum  

1509  Field identification: Psoralidium lanceolatum.

Psoralidium tenuiflorum (Pursh) Rydb. Slimflower Scurfpea.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, 0.76 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.58 km. north northeast of the GNIS location of Golden. 39.7956N, 105.2086W. WGS 1984 Elev. 1840 m.

Other articles: North Table Loop w. of saddle
Full Size ImageColl. No. 1510, Asparagus officinalis  

1510  Field identification: Asparagus officinalis.

Asparagus officinalis L. Asparagus.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, 0.76 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.58 km. north northeast of the GNIS location of Golden. 39.7955N, 105.2086W. WGS 1984 Elev. 1843 m. Sterile.

Other articles: Mesa Spur Trail Coll. No. 1511, 22 Jul 2016
Full Size ImageColl. No. 1511, Physalis hederifolia var. comata  

1511  Field identification: Physalis hederifolia.

Physalis hederifolia A. Gray var. comata (Rydb.) Waterfall. Ivy-Leaved Ground Cherry.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain,500 m. south southeast of the Mesa Spur Trailhead on 58th Avenue, 4.74 km. north northeast of the GNIS location of Golden. 39.7976N, 105.2115W. WGS 1984 Elev. 1797 m. Trailside, in grasses.

 

 

Locations: Ranson/Edwards Homestead Open Space Park.
Full Size ImageSeed of Frasera speciosa
Full Size ImageView south from north boundary of open space.

Species Lists: Frasera speciosa  

Sunday, July 24th

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Fence on north boundary of open space.
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Fence on north boundary of open space.
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The pond in the northern part is ephemeral.
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Coyote at Ranson/Edwards.
North side of Ranson/Edwards Homestead Open Space Park.

Full Size ImageColl. No. 1512, Cirsium arvense  
1512  Field identification: Cirsium arvense.

Cirsium arvense (L.) Scop. Canada Thistle.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 80 m. northwest; 16.3 km. north northwest of the GNIS location of Golden. 39.8977N, 105.2687W. WGS 1984 Elev. 1935 m. Mixed grasses and forbs, just below the ponderosa pine zone. Lightly grazed in 2016.

Colorado Noxious Weed List B.

Coll. No. 1512, 24 July 2016, characters observed: Annual, to 70 cm., tap-rooted; Leaves, cauline, alternate, sessile but not obviously decurrent, 85 mm. × 20 mm. wide, margin sinuate, spiny, adaxial thinly tomentose, abaxial tomentose; Inflorescence, panicle(?); Heads, many, 30±, 15 mm. × 8 mm. dia., disk flowers only, dioecious, staminate heads, pappus < corolla, pistillate heads, pappus > corolla; Phyllaries, many (6-7) series, outer 3 mm. × 1.5 mm. wide, inner 15 mm. × 1 mm. wide, dark dorsal ridge, tips, spinulose, reflexed; Receptacle, soft bristles, 10 mm.; Pappus, plumose bristles.

  1513  Field identification: Amorpha nana
  1514  Field identification: Ratibida columnifera

Full Size ImageColl. No. 1515, Agrostis stolonifera
Full Size ImageRoots of Coll. No. 1515, Agrostis stolonifera  
1515  Field identification: Agrostis?, maybe A. gigantea.

Agrostis stolonifera L. Creeping Bentgrass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 300 m. northeast, almost to the boundary fence; 16.3 km. north northwest of the GNIS location of Golden. 39.8991N, 105.2668W. WGS 1984 Elev. 1937 m. Weakly stoloniferous, growing in and beside ephemeral stream. Introduced.

Coll. No. 1515, 24 July 2016, characters observed: Perennial grass, to 85 cm., decumbent at base, weakly rhizomatous, 1 of 3 collections has a 2.5 cm. scaly rhizome; Leaves, sheath, open, ligule 4 mm., chartaceous tissue extending down sheath 20 mm., auricles, 1 mm., blade, 80 mm. × 3.2 mm. wide, flat, scabrous adaxially; Inflorescence, panicle, branches not bearing spikelets to base; Spikelets, 1 floret; Glumes, ±equal, 2.3 mm., purplish, keeled scabrous; Lemma, 1.8 mm. + awn 0.3 mm., thin, translucent, veins, 3(5?); Palea, 1.3 mm. Introduced.

  1516  Field identification: Oenothera villosa.

Oenothera villosa Thunb. Hairy Evening Primrose.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 700 m. downhill to northeast to a small reservoir; 16.3 km. north northwest of the GNIS location of Golden. 39.8989N, 105.2609W. WGS 1984 Elev. 1905 m. High plains above Rocky Flats, single plant growing in delatic gravels of small ephemeral stream entering pond.

  1517  Field identification: Carduus nutans.

Carduus nutans L. Nodding Plumeless Thistle.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 560 m. downhill to northeast; 16.3 km. north northwest of the GNIS location of Golden. 39.8974N, 105.262W. WGS 1984 Elev. 1916 m. Northwest-facing slope above ephemeral stream. Introduced. Colorado Noxious Weed List B.

Coll. No. 1517, 24 July 2016, characters observed: Annual, to 55 cm., tap-rooted, branched at base; Leaves, basal, withered at flowering, cauline, alternate, decurrent 40 mm. + blade 75 mm. × 25 mm. wide, pinnately lobed, margins spiny; Inflorescence, single heads on spiny tomentose peduncles 2.5-15 cm.; Phyllaries, many graduated series, 9-20 mm. × 1-3 mm. wide, thick at base, mostly green, purplish at margins, mid-vein prominent, tip spiny; Receptacle, alveolate (honeycombed), flat, bristly; Disk flowers, 25 mm., color purple; Pappus, capillary bristles, 18 mm.

 

 

Other articles: North Table Loop near Mesa Top Trl

Locations: North Table Mountain Park.
Full Size ImageGynobase of Onosmodium bejariense var. occidentale  

Friday, July 29th

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Asclepias definitely, maybe A. viridiflora
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Fruit of Asclepias definitely, maybe A. viridiflora
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Leaf of Asclepias definitely, maybe A. viridiflora
North Table Mountain, from Easley Road, by way of Lithic Trail, and North Table Loop to the north side of North Table Mountain.

Other articles: North Table Loop near str xing Glossary runcinate
Full Size ImageColl. No. 1515, Stephanomeria pauciflora
Full Size ImageRuncinate leaves of Coll. No. 1515, Stephanomeria pauciflora  

1518  Field identification: Lygodesmia juncea “Rush skeletonplant”

Stephanomeria pauciflora (Torr.) A. Nelson. Brownplume Wirelettuce.

North Table Mountain Park, Jefferson County, Colorado. Lower east slopes of North Table Mountain, between North Table Loop and Mesa Top Trail, 0.7 km. northwest of the Easley Road trailhead; 3.9 km. northeast of the GNIS location of Golden. 39.7841N, 105.1952W. WGS 1984 Elev. 1798 m. Grassy southeast-facing slope.

Coll. No. 1518, 29 July 2016, characters observed: Perennial, shrub-like, to 30 cm.; Leaves, alternate, sessile, 80 mm. × 15 mm. wide, lanceolate, deeply toothed (runcinate); Heads, many; Phyllaries, 3 graduated series, 4-9 mm. × 1.3-1.5 mm. wide; Flowers, 1 kind; Rays, #5, 12 mm. × 2.5 mm. wide, white, fading tan; Pappus, bristles, connate into 5 groups corresponding to ribs of cypsela, 7 mm., plumose upper 3/4; Cypsela, 4 mm., beak, 0, rugose-tuberculate, 5 broad ribs.

Other articles: North Table Loop along trail
Full Size ImageColl. No. 1519, Solidago missouriensis
Full Size ImageThree prominent veins in leaves of Coll. No. 1519, Solidago missouriensis  

1519  Field identification: Solidago, probably S. nana

Solidago missouriensis Nutt. Missouri Goldenrod.

North Table Mountain Park, Jefferson County, Colorado. Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.2 km. northwest of the Easley Road trailhead; 4.32 km. northeast of the GNIS location of Golden. 39.789N, 105.1953W. WGS 1984 Elev. 1829 m. Trailside in small outcrop of rocks.

Coll. No. 1519, 29 Jul 2016, characters observed: Perennial herb, to 35 cm.; Leaves, basal, unknown, cauline, alternate, petiole 10 mm. + blade 100 mm. × 22 mm. wide, oblanceolate, glabrous, margin, sparsely scabrous proximally, serrate distally, prominently 3(5)-nerved, reduced above; Heads, 3-4 mm. × 3-4 mm. wide; Phyllaries, 3+ series, 3.5 mm. × 1 mm. wide, green, margin chartaceous, veins, 1; Receptacle, epaleate, conic, Flowers, 2 kinds; Ray flowers, #12, yellow; Disk flowers, #12, yellow; Pappus, capillary bristles.

Other articles: North Table Loop along trail
Full Size ImageColl. No. 1520, Corylus cornuta  

1520  Field identification: unknown tree, maybe Carpinus betulus

Corylus cornuta Marshall. Beaked Hazelnut.

North Table Mountain Park, Jefferson County, Colorado. Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.57 km. northwest of the Easley Road trailhead; 4.56 km. northeast of the GNIS location of Golden. 39.7923N, 105.1973W. WGS 1984 Elev. 1830 m. Sterile collection, no reproductive parts found. Determination tentative.

Coll. No. 1520, 29 July 2016, characters observed: Tree, Twigs, brown, sparsely (hairy to arachnose); Leaves, alternate, petiole, 6 mm., blade, 130 mm. × 75 mm. wide, base, oblique, tip, acuminate, margin, doubly-serrate, prominently pinnately veined, glabrous.

Other articles: North Table Loop s. of williams parcel
Full Size ImageColl. No. 1521, Heterotheca villosa var. villosa  

1521  Field identification: D. Y. C.

Heterotheca villosa (Pursh) Shinners var. villosa. Hairy False Goldenaster.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, 1.02 km. southwest of the Mesa Spur trailhead on 58th Avenue, 4.66 km. north northeast of the GNIS location of Golden. 39.7953N, 105.2039W. WGS 1984 Elev. 1848 m. Mixed grasses and forbs upslope of North Table Loop.

Coll. No. 1521, 29 July 2016, characters observed: Perennial herb, to 35 cm., eglandular and hispid throughout; Leaves, cauline, alternate, sessile, 35 mm. × 18 mm. wide, ovate, entire, not contorted after drying; Heads, borne singly on leafy peduncles to 50 mm., subtended by a pair of bracts, sometimes equalling but not exceeding the head, with cilia to 1.2 mm. proximally; Phyllaries, 3+graduated series, 3-8 mm. × 1 mm. wide, more toward strigose than hispid, tips, dark brown; Receptacle, epaleate, hemispheric; Flowers, 2 kinds; Rays, corolla, 9 mm., yellow; Disk flowers, corolla, 6.5 mm., yellow; Pappus, short (1 mm.) and long (5-6 mm.) capillary bristles; Cypsela, 3 mm., hairy.

Perhaps an intermediate between Heterotheca villosa and H. foliosa. See discussion in Ackerfield (2015) Flora of Colorado.

 

   

Friday, August 8th

 

Full Size ImageSeed of Coll. No. 1522, Argemone polyanthemos  
1522  Field identification: Argemone polyanthemos.

Argemone polyanthemos (Fedde) G.B. Ownbey. Crested Prickly Poppy.

North Table Mountain Park, Jefferson County, Colorado. South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated North Table, 1.44 km. north northeast of the GNIS location of Golden. 39.7681N, 105.2169W. WGS 1984 Elev. 1905 m.

  1523  Field identification: Helianthus pumilus.

Helianthus pumilus Nutt. Little Sunflower.

North Table Mountain Park, Jefferson County, Colorado. South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated North Table, 1.44 km. north northeast of the GNIS location of Golden. 39.7681N, 105.2169W. WGS 1984 Elev. 1918 m.

  1524  Field identification: Andropogon gerardii.

Andropogon gerardii Vitman. Big Bluestem.

North Table Mountain, Jefferson County, Colorado. South side of North Table Mountain, below Climbing Access Trail near the top of the slope; 260 m. southeast of the USBR monument designated North Table, 1.38 km. north northeast of the GNIS location of Golden. 39.7675N, 105.217W. WGS 1984 Elev. 1891 m. Collected with Mirabilis linearis.


Full Size ImageColl. No. 1525, Mirabilis linearis  
1525  Field identification: Mirabilis linearis.

Mirabilis linearis (Pursh) Heimerl. Narrowleaf Four O'Clock.

North Table Mountain, Jefferson County, Colorado. South side of North Table Mountain, below Climbing Access Trail near the top of the slope; 260 m. southeast of the USBR monument designated North Table, 1.38 km. north northeast of the GNIS location of Golden. 39.7675N, 105.217W. WGS 1984 Elev. 1890 m. Widely scattered; collected with Andropogon gerardii.


Full Size ImageLocation of Coll. No. 1526, Securigera varia
Full Size ImageColl. No. 1526, Securigera varia  
1526  Field identification: Securigera varia.

Securigera varia (L.) Lassen. Purple Crownvetch.

North Table Mountain, Jefferson County, Colorado. Lower slopes on the south side of North Table Mountain, 330 m. south southeast of the USBR monument designated North Table, 1.22 km. north northeast of the GNIS location of Golden. 39.7663N, 105.2181W. WGS 1984 Elev. 1819 m. Barely identifiable fragments from a very heavily browsed patch approximately 3 m. 5 m. in size. Aerial photography shows multiple game trails oriented toward this patch. Introduced.

Coll. No. 1526, 5 August 2016, characters observed: Perennial shrub, to 1 m. × 3 m. dia.; Leaves, cauline, alternate, stipules, 3 mm. × 0.6 mm., strap-shaped, sessile or nearly so, compound, leaflets, #21, 9 mm. × 2.7 mm. wide, oblong, tip mucronate; Inflorescence, axillary umbellate clusters, peduncles, 25 mm., Pedicels, 2.5 mm., Calyx, conical, tube 2.5 mm. + lobes 0.5 mm.; Flowers, white to pink, banner 4 mm. + 2 mm., wings, 6 mm., keel, 9 mm.; Fruit, erect, 19 mm. × 1.5 mm. wide, ridged.

Other articles: Social Trail at spring
Full Size ImageInflorescence of Coll. No. 1527, Juncus interior  

1527  Field identification: Juncus sp.

Juncus interior Wiegand. Inland Rush.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.767N, 105.2201W. WGS 1984 Elev. 1831 m. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa.

Coll. No. 1527, 5 August 2014, characters observed: Perennial graminoid, to 45 cm., Culm, 40 cm, round, 1 mm. dia.; Leaves, basal, outer, 7 mm., sheath-like, inner, sheath, 80 mm., open, ligule, 0.5 mm., membraneous, blade, 225 mm., rolled; Bracts, #2, 85 mm., 46 mm.; Pedicel, 3 mm., bract, 2 mm.; Flowers, #17, closely subtended by a pair of scarious bracteoles; Tepals, 3.2 mm. lanceolate, tip acuminate, green center, then light brown strips, then scarious margin; Capsule, 3.5 mm., rounded at summit, placenta extends nearly to tip; Seeds, 0.5 mm., oblong, not tailed, annular grooves;

Other articles: Social Trail at spring
Full Size ImageInflorescence of Coll. No. 1528, Elymus trachycaulis  

1528  Field identification: some kind of wheat grass, maybe Pascopyrum smithii.

Elymus trachycaulus (Link) Shinners. Slender Wheatgrass.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.7669N, 105.22W. WGS 1984 Elev. 1835 m. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa.

Coll. No. 1528, 5 August 2016, characters observed: Perennial grass, to 1 m., generally glabrous except as noted; Leaves, sheath, open, ligule, membraneous, auricles, small, 1 mm., blade, 25 mm. Inflorescence, bi-lateral spike; Spikelets, mostly 1 per node, about 1/3 have 2 per node, 21 mm. × 3.5 mm. wide, compression, lateral; Disarticulation, between the florets; Glumes, #2, ±equal, 11 mm. + awns 2 mm., not quite straight, thick, tough, not keeled, veins, 5, prominent, margins, widest at middle, Florets, #8, Lemma, 9 mm. + awn 3 mm, longitudinally symetric; Palea, 9 mm., tip, bifid, veins, ciliate; Anthers, 3 mm.

Other articles: Social Trail at spring
Full Size ImageColl. No. 1529, Poa palustris
Full Size ImageSpikelets of Coll. No. 1529, Poa palustris  

1529  Field identification: some kind of grass, maybe Sporobolus.

Poa palustris L. Fowl Bluegrass.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.767N, 105.22W. WGS 1984 Elev. 1833 m. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa.

Coll. No. 1529, 5 August 2016, characters observed: Perennial grass, to 1 m., growing in running water; rhizomes, unknown (none seen); Leaves, sheath open, ligule, membraneous, 4 mm., blade, flat, scabrous, tip, narrow, not broadly prow-shaped; Inflorescence, open panicle, 28 cm. × 20 cm. wide, lower branches 4-5 per node; Pedicels, 0.3-3.0 mm.; Spikelets, 1 per node, 4 mm. × 1 mm., compression lateral, glumes, lemma, and paleae very fragile; Glumes, #2, lower, 2.6 mm., veins 3, upper, 2.8 mm., veins 3 (5?); Disarticulation, above the glumes; Florets, 3 fertile, + uppermost rudimentary; Lemma, 2.6 mm., veins, at least 3, maybe 5, basal hairs sparse, but length 1/2 the lemma, keeled, hairy proximally, margin, hairy proximally, glabrous between the veins; Palea, 2.3 mm.

  1530  Field identification: some kind of grass, maybe same as previous, and a Sporobolus.

Poa palustris L. Fowl Bluegrass.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.7669N, 105.22W. WGS 1984 Elev. 1830 m. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Same as Coll. No. 1529, but this one shows the decumbent culms that are purplish at the base.

  1531  Field identification: definitely Rumex, probably R. crispus.

Rumex crispus L. Curley Dock.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.767N, 105.22W. WGS 1984 Elev. 1822 m. Basal leaves absent. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Introduced.

  1532  Field identification: Epilobium ciliatum.

Epilobium ciliatum Raf. Fringed Willowherb.

North Table Mountain, Jefferson County, Colorado. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument North Table,1.25 km. north of the GNIS location of Golden. 39.767N, 105.2201W. WGS 1984 Elev. 1826 m. Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa.

 

   

Tuesday, August 16th

Some of the unwanted stuff that came up in the parkway.

Full Size ImageColl. No. 1533, Solanum physalifolium  
1533  Solanum physalifolium Rusby. Hoe Nightshade.

Golden, Jefferson County, Colorado. Landscaped parkway near the intersection of 5th Street and Arapahoe Street, Golden, CO, 0.9 km. northwest of the GNIS location of Golden. 39.7613N, 105.2286W. WGS 1984 Elev. 1755 m. Adventive weed. Introduced.

Coll. No. 1533, 16 August 2016, characters observed: Annual, to 25 cm., hairy throughout, hairs gland-tipped, some multicellular, without spines or prickles; Leaves, alternate, simple, 35 mm. × 19 mm. wide, ovate, margins entire to wavy; Inflorescence, racemes, 2-5 flowers, between nodes or sometimes at nodes opposite leaves; Calyx, tube 1.5 mm. + lobes 1.0 mm., without downward pointing lobes; Corolla, rotate, white, limb, 8 mm.; Stamens, upright around the style, touching it without being fused (connivent); Fruit, unknown. Introduced.


Full Size ImageColl. No. 1534, Solanum rostratum  
1534  Solanum rostratum Dunal. Buffalo Bur Nightshade.

Golden, Jefferson County, Colorado. Landscaped parkway near the intersection of 5th Street and Arapahoe Street, Golden, CO, 0.9 km. northwest of the GNIS location of Golden. 39.7613N, 105.2286W. WGS 1984 Elev. 1755 m. Adventive weed.

  1535  Persicaria sp.

 

 

Locations: North Table Mountain Park.  

Thursday, August 18th

North side of North Table Mountain.
  1536  Field identification: Liatris punctata.

Liatris punctata Hook. Dotted Blazing Star.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. 39.7926N, 105.2127W. WGS 1984 Elev. 1811 m. Phyllaries erect, acuminate; flowers few (e.g., 5), pappus plumose bristles. Mixed grasses and forbs.

  1537  Field identification: Eriogonum effusum.

Eriogonum effusum Nutt. Spreading Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. 39.7927N, 105.2127W. WGS 1984. Elev. 1830 m. Many here, very few in bloom.

Coll. No. 1507.1, 22 Jul 2016, Coll. Nos. 1537 & 1541, 18 Aug 2016, characters observed: Perennial herb, woody at base, to 30 cm., Stem, floccose; Leaves, cauline, petiole 5 mm. + blade 20-25 mm. × 2-6 mm. wide, generally tomentose, except less so adaxially, ±flat, margin entire, , withered at flowering; Inflorescence, open cyme; Involucre, 1 per node, 2 mm., tomentose; Perianth, without stipe; Tepals, 1.8 mm., white to pink, described as yellow in Ackerfield (2015) and FNAMN; Achene, unknown.

  1538  Field identification: Senecio sp.

Senecio spartioides Torr. & A. Gray. Broomlike Ragwort.

North Table Mountain Park, Jefferson County, Colorado. lower north slopes of North Table Mountain, 0.73 km. south southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northeast of the GNIS location of Golden. 39.7954N, 105.2104W. WGS 1984 Elev. 1837 m. Mixed grasses, forbs and small shrubs.

Other articles: North Table Loop near horse pasture
Full Size ImageColl. No. 1539, Verbesina encelioides  

1539  Field identification: Asteraceae.

Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray. Golden Crownbeard. Cowpen Daisy..

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.796N, 105.2054W. WGS 1984. Elev. 1840 m. On edge of private horse pasture.

Coll. No. 1539, 18 August 2016, characters observed: Annual/perennial not observed, but described as annual; Stem, densely strigose; Leaves, cauline, alternate, petiole 48 mm. + blade 80 mm. × 40 mm. wide, reduced above, lanceolate, margin coarsely toothed, adaxial sparsely strigose, abaxial densely strigose; Heads, 7 mm. × 13 mm. wide, borne singly, on peduncles 6-43 mm.; Phyllaries, 1 series, 7 mm. × 1.5 mm. wide, strigose abaxially; Receptacle, conical, paleate; Flowers, 2 kinds, Rays, #12, tube 2 mm. + laminae 15 mm. × 4.5 mm. wide, yellow, sterile; Disk flowers, corolla, 3.5 mm., yellow; Pappus, [2 awns,] 1 mm.; Cypsela, 3.5 mm., strigose.

Other articles: North Table Loop near horse pasture
Full Size ImageInflorescence of Coll. No. 1540, Dyssodia papposa
Full Size ImageColl. No. 1540, Dyssodia papposa  

1540  Field identification: Matricaria discoidea “Pineapple Weed”

Dyssodia papposa (Vent.) Hitchc. Fetid Marigold.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. 39.796N, 105.2055W. WGS 1984 Elev. 1840 m. On edge of private horse pasture.

Coll. No. 1540, 18 August 2016, characters observed: Annual, to 15 cm., tap-rooted, most surfaces with scattered 0.4 mm. elliptical brown oil glands; Leaves, cauline, 28 mm. × 12 mm. wide, reduced above, pinnafitid, ±sessile; Heads, borne singly on leafy stems; Phyllaries, 2+ graduated series, 3 mm. × 1 mm. wide, lanceolate, to 6 mm. × 2.7 mm. wide, elliptic, 5-9 brown oil glands; Receptacle, epaleate; Flowers, 1 kind; Disk flowers, 2.8 mm., yellow; Pappus, scales, dissected to appear to be bristles, 3 mm.; Cypsela, 4 mm., black. Native roadside weed.

  1541  Field identification: Eriogonum effusum

Eriogonum effusum Nutt. Spreading Buckwheat.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, in an area of small knolls that may be the toe of a large lansdlide, 0.74 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. 39.797N, 105.2064W. WGS 1984 Elev. 1842 m. Mixed grasses, shrubs, and forbs.

Sterile material from Coll. No. 1507.1 was included with the materials sent to KHD to demonstrate the cheracters of the leaves.

Coll. No. 1507.1, 22 Jul 2016, Coll. Nos. 1537 & 1541, 18 Aug 2016, characters observed: Perennial herb, woody at base, to 30 cm., Stem, floccose; Leaves, cauline, petiole 5 mm. + blade 20-25 mm. × 2-6 mm. wide, generally tomentose, except less so adaxially, ±flat, margin entire, , withered at flowering; Inflorescence, open cyme; Involucre, 1 per node, 2 mm., tomentose; Perianth, without stipe; Tepals, 1.8 mm., white to pink, described as yellow in Ackerfield (2015) and FNAMN; Achene, unknown.

  1542  Field identification: Melilotus alba albus.

Melilotus albus Medik.

North Table Mountain Park, Jefferson County, Colorado. Lower north slopes of North Table Mountain, beside the North Table Loop, 0.72 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northwest of the GNIS location of Golden. 39.7953N, 105.2118W. WGS 1984, Elev. 1821 m. Mixed grasses and forbs. Introduced. Not considered a noxious weed in Colorado.

  1543  Field identification: Gutierrezia sarothrae.

Gutierrezia sarothrae (Pursh) Britton & Rusby. Broom Snakeweed.

North Table Mountain Park, Jefferson County, Colorado. West-facing slope on the north side of North Table Mountain, 0.92 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.3 km. north northeast of the GNIS location of Golden. 39.7935N, 105.212W. WGS 1984 Elev. 1842 m. Mixed grasses, subshrubs, and forbs.

 

   

Wednesday, August 31st

 
  1544  Field identification: Tribulus terrestris.

Tribulus terrestris L. Puncture Vine.

Golden, Jefferson County, Colorado. Parkway of 404 Arapahoe Street, near the intersection of 4th Street and Arapahoe Street. 0.95km. northwest of the GNIS location of Golden. 39.7616N, 105.2289W. WGS 1984 Elev. 1762 m. Colorado Noxious Weed List C.

 

 

Locations: North Table Mountain. North Table Mountain Park.  

Thursday, September 1st

North Table Mountain, by way of Golden Cliffs Trail, the social trail down the rim, and then North Table Mountain Trail.
  1545  Field identification: Senecio spartiodes.

Senecio spartioides Torr. & A. Gray. Broomlike Ragwort.

North Table Mountain Park, Jefferson County, Colorado. Middle elevation south slopes of North Table Mountain, along Golden Cliffs trail, 84 m. northeast of the Golden Cliffs trailhead, 1.4 km. northeast of the GNIS location of Golden. 39.7668N, 105.2135W. WGS 1984 Elev. 1767 m. Perennial with large woody caudex. Growing next to Coll. No. 1319, Ribes aureum, 4 May 2016.


Full Size ImageColl. No. 1546, Brickellia californica  
1546  Field identification: Brickellia californica.

Brickellia californica (Torrey & A. Gray) A. Gray. California Brickelbush.

North Table Mountain Park, Jefferson County, Colorado. Near top of south side of North Table Mountain, at the base of the lower set of basalt cliffs, 220 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. 39.7682N, 105.2145W. WGS 1984 Elev. 1908 m. Growing in rock fractures, flowers just starting to open.

  1547  Field identification: Tribulus terrestris.

Tribulus terrestris L. Puncture Vine.

North Table Mountain Park, Jefferson County, Colorado. Beside the Golden Cliffs trail, at the base of the lower basalt flow, 210 m. north of the Golden Cliffs trailhead, 1.5 km. northeast of the GNIS location of Golden. 39.7681N, 105.2148W. WGS 1984 Elev. 1906 m. All visible plants uprooted and removed. Colorado Noxious Weed List C.

  1548  Field identification: Lactuca, most likely L. serriola.

Lactuca serriola L. Prickly Lettuce.

North Table Mountain Park, Jefferson County, Colorado. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. 39.7685N, 105.2151W. WGS 1984 Elev. 1936 m. Growing in cracks in the basalt of the upper flow, plentiful in rocks and in soil below. Introduced.

Other articles: Golden Cliffs Trail near rim
Full Size ImageColl. No. 1549, Pseudognaphalium canescens
Full Size ImageColl. No. 1549, Pseudognaphalium canescens  

1549  Field identification: Pseudognaphalium canescens.

Pseudognaphalium canescens (DC.) Anderberg. Wright's Rabbit-Tobacco..

North Table Mountain Park, Jefferson County, Colorado. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. 39.7686N, 105.2151W. WGS 1984 Elev. 1951 m. Growing in cracks in the basalt of the upper flow, very few seen.

Coll. No. 1549, 1 Sep 2016, characters observed: Perennial, to 25 cm.; Leaves, alternate, petiole 16 mm. + blade 30 mm. × 10 mm. wide, tomentose (slightly less so adaxially), sessile glandular beneath the tomentum; Inflorescence, terminal and axial on leafy stems; Phyllaries, 3 series, 3.7 mm. × 1 mm. wide, green center, mostly scarious, innermost glabrous; Receptacle, epaleate, flat; Flowers, 2 kinds (heads disciform); Rays, small, inconspicuous, sterile; Disk flowers, corolla, 2 mm., yellow; Pappus, capillary bristles, >corollas.

  1550  Field identification: Gutierrezia sarothrae.

Gutierrezia sarothrae (Pursh) Britton & Rusby. Broom Snakeweed.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, near southern edge, 360 m. east of the USBR monument designated North Table, 1.6 km. north northeast of the GNIS location of Golden. 39.7691N, 105.215W. WGS 1984 Elev. 1957 m. Small stature, growing in cracks of basalt flow.

  1550.5  Field identification: Chamaesyce, sp., either C. glyptosperma or C. serpyyllifolia.

Chamaesyce glyptosperma (Engelm.) Small. Ribseed Sand Mat.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, near southern edge, 330 m. east of the USBR monument designated North Table, 1.64 km. north northeast of the GNIS location of Golden. 39.7696N, 105.2153W. WGS 1984 Elev. 1954 m.


Full Size ImageColl. No. 1551, Munroa squarrosa
Full Size ImageColl. No. 1551, Munroa squarrosa  
1551  Field identification: Spiny little annual, maybe a Chorizanthe, which, of course, does not occur in Jefferson County.

Munroa squarrosa (Nutt.) Torr. False Buffalograss.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, near southern edge, 1.64 km. north northeast of the GNIS location of Golden. 39.7696N, 105.2154W. WGS 1984 Elev. 1953 m.


Full Size ImageSmall plant seen on top of North Table Mountain  
Small plant seen on top of North Table Mountain. Undetermined; my first thought was Lewisia, which, of course, does not occur in Jefferson County.

6/16/2017: I now believe this is Phemeranthis parviflorus, as seen on CoNPS field trips, 6/10/2017 and 6/12/2017.


Full Size ImageColl. No. 1553, Muhlenbergia wrightii  
1552  Field identificaton: Muhlenbergia wrightii.

Muhlenbergia wrightii Vasey ex J.M. Coult. Spike muhly.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, adjacent to the North Table Loop, in an upper portion of a watercourse draining to the southeast through an unamed canyon, 1.8 km. north of the GNIS location of Golden. 39.7716N, 105.2179W. WGS 1984 Elev. 1953 m. Common in bed of ephemeral stream and nearby gentle slopes to the south.

Other articles: North Table Loop near Golden Cliffs Trl
Full Size ImageColl. No. 1553, Brickellia eupatorioides  

1553  Field identification: Asteraceae, disciform heads.

Brickellia eupatorioides (L.) Shinners. False Boneset.

North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, adjacent to the North Table Loop, 285 m. north of the USBR monument designated North Table, 1.8 km. north of the GNIS location of Golden. 39.7716N, 105.2182W. WGS 1984 Elev. 1953 m. Common in bed of ephemeral stream, in an upper portion of a watercourse draining southeast to Clear Creek through an unamed canyon. Many Eriogonum alatum at this location.

Coll. No. 1553, 1 Sep 2016, characters observed: Perennial herb, to 40 cm.; Leaves, alternate, short-petioled (2 mm.), 48 mm. × 7 mm. wide, lanceolate, tip obtuse, margin entire, glandular-punctate, sparsely strigose; Inflorescence, corymbiform, heads in groups of 4-5; Involucre, 8.5 mm. × 6 mm. wide; Phyllaries, 3+ series, graduated, 2-8.5 mm. × 0.5 mm. wide, prominently veined “longitudinally striate,” margin scarious, tip acuminate to spinulose; Receptacle, epaleate; Disk flowers, #19, corolla, 7 mm., yellow; Pappus, plumose bristles, 6 mm.; Cypsela, many ribs (maybe 10).

  1554  Field identification: Artemisia dracunculus.

Artemisia dracunculus L. Tarragon, Dragon Wort.

North Table Mountain, Jefferson County, Colorado. Uppermost southwest slopes of North Table Mountain, just below the basalt flow capping the mesa, 1.7 km. north of the GNIS location of Golden. 39.7711N, 105.2225W. WGS 1984 Elev. 1935 m.

 

 

Locations: Ranson/Edwards Homestead Open Space Park.
Full Size ImageSorghastrum nutans “Yellow Indian Grass”
Full Size ImageMature flower head of Helianthus pauciflorus subsp. subrhomboideus  

Saturday, September 3rd

Ranson/Edwards Homestead Open Space, planning for CoNPS field trip.
  1555  Field identification: Sporobolus heterolepis.

Sporobolus heterolepis (A. Gray) A. Gray. Prairie Drop-seed.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road, from CO Highway 93, 1.2 mi. north on Plainview Road, then 45 m. west of Plainview road, 15.3 km. north northwest of the GNIS location of Golden. 39.8896N, 105.2624W. WGS 1984 Elev. 1937 m. On a small terrace on the north side of intermittent creek.

  1556  Field identification: Solidago, probably S. missouriensis.

Solidago rigida L. var. humilis Porter. Stiff Goldenrod.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road, from CO Highway 93, 1.2 mi. north on Plainview Road, then 400 m. east of Plainview road, 15.3 km. north northwest of the GNIS location of Golden. 39.8898N, 105.2571W. WGS 1984 Elev. 1922 m. Wet, almost swampy, area on the south side of an intermittent stream.

  1557  Field identification: Helianthus, probably H. pumila.

Helianthus pauciflorus Nutt. ssp. subrhomboideus (Rydb.) O. Spring & E. Schilling. Stiff Sunflower.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road, from CO Highway 93, 1.2 mi. north on Plainview Road, then 400 m. east of Plainview road, 15.3 km. north northwest of the GNIS location of Golden. 39.8898N, 105.2571W. WGS 1984 Elev. 1922 m. Wet, almost swampy, area on the south side of an intermittent stream.

  1558  Field identificaton: an “Aster,” maybe Symphyotricum falcatum.

Symphyotrichum ericoides (Linnaeus) G. L. Nesom. White Heath Aster.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.1 miles north on Plainview Road from CO State Highway 72, then 400 m. east, to a damp area where an old ranch road first crosses an ephemeral stream. 39.8898N, 105.257W. WGS 1984 Elev. 1922 m.

Coll. No. 1558, 3 September 2016, characters observed: Perennial, woody at base, stems ascending, to 40 cm., eglandular throughout; Leaves, alternate, sessile, narrowly lanceolate, 9 mm. × 1.5 mm. wide, entire, strigose, tip, small white spine; Heads, borne singly along stem, on leafy pedicels; Flowers, of 2 kinds; Involucre, 4 mm.; Phyllaries, 2+ series, 3 mm. × 0.7 mm. wide, white below with 1 brown vein, rhomboid green above, tip with very small spine; Receptacle, epaleate; Rays, corolla, white, 6.0-6.5 mm.; Disc flowers, corolla, yellow, 4 mm.; Pappus, bristles, fine, barbelate, 4 mm.

  Following collections made in my garden for use as examples in an upcoming field trip.
  1559  Single inflorescence from Sporobolus heterolepis.
  1560  Two example inflorescences from garden-grown Sorghastrum nutans for use as examples in an upcoming field trip.

Full Size ImageColl. No. 1561, Elymus virginicus  
1561  Adventive grass, distinctive, should be easy to determine.

Elymus virginicus L. Virginia Wildrye.

Golden, Jefferson County, Colorado. Parkway at 420 Arapahoe Street. 39.7613N, 105.2286W. WGS 1984 Elev. 1755 m. Adventive grass in garden; perhaps introduced with seed of Sorghastrum nutans.

Coll. No. 1561, 4 Sep 2016, characters observed: Annual or perennial unknown (s/b perennial); Rhizomes unknown (s/b absent); Culm, erect, dark purple below; Inflorescence, terminal, spike, bilateral, exserted above leafy portion of plant; Disarticulation unknown (s/b rachis not disarticulating, in Elymus the rachis generally remains articulate); Spikelets, in pairs at each node; Glumes, #2, held away from florets, body 10 mm. + awn 4-5 mm. = 14-15 mm., veins 5 (2 ±obscure) at midlength, awn single (not split); Florets, #4-5, fertile; Lemma, lowest (adjacent to glume), body 7 mm. + awn 7 mm. = 14 mm., body, veins, 5 (2 ±obscure), awn straight;

 

 

Other articles: Plainview Road near Coal Ck

Locations: Ranson/Edwards Homestead Open Space Park.
Full Size ImageHabitat of Amorpha nana, seen in the center of the photograph.  

Thursday, September 8th

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Amorpha nana, leaves and inflorescence.
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Praying Mantis on Helianthus pauciflorus “Stiff Sunflower”
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Bear beside Coal Creek in Ranson/Edwards Homestead Open Space.
Ranson/Edwards.
  1562  Field identification: Sorghastrum nutans.

Sorghastrum nutans (L.) Nash. Yellow Indian Grass.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northwest corner of the Ranson/Edwards parcel, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 2.2 mi. north on Plainview Road, then 360 m. west northwest, nearly to the parcel boundary at the base of a hogback. 39.898N, 105.276W. WGS 1984 Elev. 2022 m. 16.5 km. north northwest of the GNIS location of Golden.

  1563  Field identification: Muhlenbergia wrightii.

Muhlenbergia wrightii Vasey ex J.M. Coult. Spike muhly.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northwest corner of the Ranson/Edwards parcel, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 2.2 mi. north on Plainview Road, then 350 m. west northwest, nearly to the parcel boundary at the base of a hogback. 39.8979N, 105.2752W. WGS 1984 Elev. 2022 m. 16.5 km. north northwest of the GNIS location of Golden.

  1564  Field identification: Senecio spartioides.

Senecio spartioides Torr. & A. Gray. Broomlike Ragwort.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Northwest corner of the Ranson/Edwards parcel, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 2.3 mi. north on Plainview Road, then 40 m. west, 16.3 km. north northwest of the GNIS location of Golden. 39.8962N, 105.2731W. WGS 1984 Elev. 2022 m. Not often seen at Ranson/Edwards; these growing among grasses and fallen, burned ponderosa pines.

 

   

Monday, September 19th

 

Other articles: Guanella Pass Road at Cty Rd 352 above Clear Lk CG Guanella Pass

Locations: Guanella Pass.
Full Size ImageGuanella Pass Road, near Leavenworth Creek Road turnoff.  

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Aspens along Guanella Pass Road.
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View north from Guanella Pass.
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View south from Guanella Pass.
 

Other articles: US Highway 285 at Kenosha Pass

Locations: Kenosha Pass. Mount Evans.
Full Size ImageThe "scene" at Kenosha Pass  

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How Coloratans decorate their trailheads!
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Mount Evans (?) from Kenosha Pass.
 

Other articles: Boreas Pass Road in Como

Locations: Como.
Full Size ImageInterpretive sign for Como Roundhouse  

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The roundhouse in Como.
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Como
 

Other articles: Boreas Pass Road at Roberts Cabin

Locations: Peabodys.
Full Size ImageRoberts Cabin at Peabodys  

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View northwest up North Tarryall Creek from Roberts Cabin at Peabodys.
Roberts Cabin at Peabodys.

Other articles: Boreas Pass Road along road

Locations: South Park.
Full Size ImageAspens along Boreas Pass Road.  

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South Park from Boreas Pass Road
 

Other articles: Boreas Pass Road Boreas Pass

Locations: Boreas Pass.
Full Size ImageCS 8311 at Boreas Pass  

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Section House at Boreas Pass
Boreas Pass

Other articles: Boreas Pass Road at Bakers Tank
Full Size ImageBakers Tank  

Bakers Tank.


Bakers Tank
Mile Post 102.16
This tank served the Denver, South Park and Pacific, narrow gauge R. R. (later the Colorado and Southern) from Como to Leadville. The R. R. had 63.83 miles of track and 435 curves. The longest stretch of straight track was 1.6 miles. This line was begun October 2, 1880 and completed February 5, 1884. It was abandoned April 10, 1937. Tank restored by Summit County in 1958.

 

 

Locations: Ranson/Edwards Homestead Open Space Park.  

Wednesday, September 28th

Return to Ranson/Edwards Homestead Open Space to look for Salvia reflexa.
  1565  Field identification: Dieteria bigelovii.

Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman. Bigelow's Tansy Aster.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Bank below Plainview Road, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.8 mi. north on Plainview Road; 16.0 km. north northwest of the GNIS location of Golden. 39.8949N, 105.2682W. WGS 1984 Elev. 1927 m. Resprouting laterally after having been eaten.

Other articles: Salvia reflexa Hornem. Introduction  

1566  Field identification: Salvia reflexa.

Salvia reflexa Hornemann. Lanceleaf Sage.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Outside edge of a small outwash gravel bar, a few meters west of Plainview Road; 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.2 mi. north on Plainview Road; 15.3 km. north northwest of the GNIS location of Golden. 39.8895N, 105.2621W. WGS 1984 Elev. 1938 m. Annual, corolla light blue, falling easily. Plants branching laterally after being eaten.

There is a certain amount of confusion about the names for this taxon. For my notes on the subject, see my page on Names in Salvia reflexa and S. lanceolata.

 

   

Thursday, November 10th

 

Other articles: County Road 40 Fort Saint Vrain

Locations: Fort Saint Vrain.
Full Size ImageInterpretive plaque at Fort Saint Vrain.  

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Interpretive plaque at Fort Saint Vrain.
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Monument at historic Fort Saint Vrain

Fort Saint Vrain


Full Size ImagePoudre River Education Center  

Poudre River Education Center

Other articles: 7th Avenue at depot

Locations: Greeley.
Full Size ImageFront door to the Greeley Depot  

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Folk art decoration on ceiling beams.
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The Greely depot.
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Union Pacific shield on Greeley depot.

Greeley

An interpretive panel outside the depot says this:
GREELEY UNION PACIFIC RAILROAD DEPOT

The Greeley Union Pacific Railroad Depot was designed by architect Gilbert Stanley Underwood and built in 1930. During the dedication ceremony, Union Pacific President Carl Gray said, "There is not much economic justification for the building of this station This expenditure shows in a measure the appreciation of the railroad for the cooperation and aid this community has given the Union Pacific."

The building features terra cotta trim on the four main entrances and grouped, central double-hung windows on the east and west elevations. Inside, stenciled folk art images of animals and designs decorate the ceiling beams. The building was listed on the National Register of Historic Places in 1993.

Greeley's link to the outside world was through a series of four depots. During the city's first year, passengers made do with a boxcar as a depot. In 1871, a modest board and batten tructure greeted distinguished visitors such as Horace Greeley and P.T. Barnum. In 1883, a stone depot was built near the site of the current depot. Finally, the existing structure was built in 1930 as a result of the efforts of many Greeley residents, including Chamber of Commerce president Thomas Welsh, who believed that transportation "is and always has been the dominant factor in city growth."

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Date and time this article was prepared: 10/27/2017 8:34:17 PM