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.
2024
January 2024
Other articles: • Alley:
about even with front door; Muddy alley on 23 January 2024.
Muddy alley on 23 January 2024.
Other articles: • Alley:
at sidewalk; Muddy snow on the sidewalk.
6 February 2024
Muddy conditions on the alley.
Other articles: • Arapahoe Street:
at alley; Muddy water on its way to Clear Creek from the alley.
Tuesday, 13 February 2024
Other articles: • Magpie Gulch Trail:
social train down; Upper end of the shortcut trail.
Wednesday, 14 February 2024
Other articles: • Trail to Parkview Court:
at drain; • Magpie Gulch Trail:
social train down; A walker on the social trail, calling to her dog that is off-leash in the yard at right center.
A couple walking their dog on the social trail.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Ranunculaceae
Pulsatilla nuttalliana (DC.) Bercht. & J. Presl.
Pasque Flower.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
280 m. northwest of Coal Creek Canyon Fire Department Station 3, 14.2 km. north northwest of Golden.
39.87518°N, 105.27963°W.
WGS 1984
Elev. 2034 m.
Open rocky field, recognizable here at this early date: Lomatium orientale, Echinocereus viridiflorus, Yucca glauca, and Carex inops ssp. heliophila.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3232.
12-Apr-2024
Monday, 15 April 2024
Staminate catkins on Coll. No. 3233, Populus deltoides.
Fragmenting collection of staminate catkins, Coll. No. 3233, Populus deltoides monilifera.
Populus deltoides, pistillate catkins. Poor collection, discarded.
Tuesday, 23 April 2024
Weeding at Schweich Hill.
Locations: Coal Creek Canyon Study Area, Lacey Parcel.
View from the low hill in the northeast corner of the Lacey parcel.
Pulsatilla nuttalliana under Ponderosa pines.
Wednesday, 24 April 2024
Coal Creek Canyon Study Area, Lacey Parcel, with John Vickery.
Carduus nutans rosette.
Small gulch above Coal Creek (S2.2)
View across Coal Creek Canyon.
Upper part of small gulch S2.2.
View back across upper part of small gulch (S2.2).
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Isolated hill in the Idaho Springs-Ralston shear zone, 540 m. northwest of the Coal Creek Canyon Fire Department Station 3, 14.4 km. north northwest of Golden.
39.8765°N, 105.28229°W.
WGS 1984
Elev. 2053 m.
North side of hill in Ponderosa pine woodland.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Asteraceae
Cirsium vulgare (Savi) Ten.
Bull Thistle.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
In cobbles and gravel of the bank of Coal Creek, 850 m. northwest of the Coal Creek Canyon Fire Department Station 3, 14.6 km. north northwest of Golden.
39.87778°N, 105.28556°W.
WGS 1984
Elev. 2024 m.
Basal rosette.
iNaturalist Observation 209169508.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich, with John Vickery
3237.
24-Apr-2024
Locations: Schweich Hill.
Field Chickweed (Cerastium arvense var. strictum) on Schweich Hill.
Packera fendleri on Schweich Hill.
Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Sapindaceae
Xanthoceras sorbifolium Bunge.
Yellowhorn.
Golden, Jefferson County, Colorado.
West end of alley parallel to 4th and 5th Streets, between Arapahoe and Cheyenne Streets, north side of alley, rooted between telephone pole and fence post, nearest street address 407 Cheyenne Street, 940 m. northwest of the GNIS location of Golden.
39.76091°N, 105.22961°W.
WGS 1984
Elev. 1759 m.
Woody shrub, about 2 m. tall, rooted at the base of a telephone pole, between that pole and a fence post.
Formerly grown in a private garden at 409 Cheyenne Street. Garden was destroyed by residential construction in 2018. However, this plant appeared in 2022 at the edge of the former garden some distance from the original location the plant was grown.
Collected by permit: City of Golden, 2024, issued: Mar 29, 2024, to: Tom Schweich.
Tom Schweich
3238.
8-May-2024
Locations: Hildebrand Ranch Park.
Where we found Physaria, either P. bellii or P. vitulifera.
Tuesday, 14 May 2024
Hildebrand Ranch Park
Locations: Hildebrand Ranch Park.
Physaria sp. On Pierre shale.
General habitat of Coll. No. 3209.
Hildebrand Ranch Park, Jefferson County, Colorado.
East-facing slope below a flat. Unclear whether we are in Niobrara Fm. or on the Pierre Shale. 815 m. west of Hildebrand Ranch Park parking lot, 2.10 km. south southwest of West Metro Fire Rescue Station 14
39.55156°N, 105.11959°W.
WGS 1984
Elev. 1739 m.
Fine-grained calcareous sandstone with Musineon divaricatum, Helianthis pumilis, Delphinium sp., and Cercocarpus montanus.
These collections were made because of previous collections on nearby private land that are determined P. bellii (COLO201392, COLO201400).
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich, with John Vickery
3239.
14-May-2024
Coll. No. 3239, Physaria vitulifera.
The photograph was taken at roughly the same time as this collection was made, but I do not think this is actually one of the plants in the collection.
Hildebrand Ranch Park, Jefferson County, Colorado.
Top of an east-facing slope below flat. Unclear whether we are in Niobrara Fm. or on the Pierre Shale. 835 m. west of Hildebrand Ranch Park parking lot, 2.10 km. south southwest of West Metro Fire Rescue Station 14.
39.55153°N, 105.11978°W.
WGS 1984
Elev. 1746 m.
Fine-grained calcareous sandstone with Musineon divaricatum, Helianthis pumilis, Delphinium sp., and Cercocarpus montanus.
These collections were made because of previous collections on nearby private land that are determined P. bellii (COLO201392, COLO201400).
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Hildebrand Ranch Park, Jefferson County, Colorado.
Just on the east slope of a small hogback mapped as Niobrara Fm., 965 m. west of Hildebrand Ranch Park parking lot, 2.15 km. south southwest of West Metro Fire Rescue Station 14.
39.55139°N, 105.12128°W.
WGS 1984
Elev. 1762 m.
Three of six plants growing under Cercocarpus montanus, with Eriogonum umbellatum and Opunita polyacantha.
These collections were made because of previous collections on nearby private land that are determined P. bellii (COLO201392, COLO201400).
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Fabaceae
Oxytropis sericea Nutt. ex Torr. & A. Gray var. sericea.
White Locoweed.
Hildebrand Ranch Park, Jefferson County, Colorado.
Lower northeast slope of small hogback, near where the Two Brands Trail crossess through the hogback, 914 m. west southwest of parking lot, 24.5 km. south southeast of Golden.
39.549°N, 105.12029°W.
WGS 1984
Elev. 1760 m.
With Juniperus scopulorum, Musineon divaricatum, Cercocarpus montanus, Castilleja integra, Gutierrezia sarothrae, and Leucocrinum montanum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich, with John Vickery
3242.
14-May-2024
Coll. No. 3242, 14 May 2024:
Perennial, to 35 cm., hairs soft, often wavy, not wart-like;
Leaves,
basal,
compound,
170 mm. × 36 mm. wide;
Leaflets,
#17±, 29 mm. × 7 mm. wide, hairy both sides;
Bracts,
11 mm., lanceolate;
Calyx,
tube 10 mm. + lobes 4 mm., hairs white, wavy;
Flowers,
ascending,
20-24 mm.,
banner, 19 mm., white with purple guides,
wings, 19 mm. (unable to see distinctive flexure of wings in dried specimens),
keel, 17 mm., purple distally, trip porrect;
Fruit,
last year's persistent,
20 mm. × 7 mm. wide,
ascending;
Hildebrand Ranch Park, Jefferson County, Colorado.
Lower northeast slope of small hogback, near where the Two Brands Trail crosses through the hogback, 914 m. west southwest of parking lot, 24.5 km. south southeast of Golden.
39.54897°N, 105.12019°W.
WGS 1984
Elev. 1755 m.
Also here: Euphorbia brachyceras, Cirsium undulatum, Bromus inermis, and Leucocrinum montanum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Euphorbiaceae
Euphorbia brachycera Engelm.
Horned Spurge.
Hildebrand Ranch Park, Jefferson County, Colorado.
Lower northeast slope of small hogback, near where the Two Brands Trail crosses through the hogback, 914 m. west southwest of parking lot, 24.5 km. south southeast of Golden.
39.54898°N, 105.12019°W.
WGS 1984
Elev. 1755 m.
Also here: Ipomopsis spicata, Cirsium undulatum, Bromus inermis, and Leucocrinum montanum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Asteraceae
Packera plattensis (Nuttall) W. A. Weber & Á. Löve.
Prairie Groundsel.
Hildebrand Ranch Park, Jefferson County, Colorado.
Lower northeast slope of small hogback, near where the Two Brands Trail crosses through the hogback, 875 m. west southwest of parking lot, 24.5 km. south southeast of Golden.
39.54936°N, 105.11992°W.
WGS 1984
Elev. 1751 m.
Small groups of 2-4 plants scattered across the lowest slope of the hogback.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Populus deltoides var. monilifera with pistillate catkins.
Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Salicaceae
Populus deltoides Marshall ssp. monilifera (Aiton) Eckenw.
Plains Cottonwood.
Deadman Gulch, Jefferson County, Colorado.
East side of Highway 6, along the Illinois Street Trail, 2.21 km. south of the GNIS location of Golden.
39.73625°N, 105.21488°W.
WGS84
Elev. 1801 m.
Pistillate catkins with developing fruit.
Also collected here: Apocynum ×floribundum, Mirabilis nyctaginea, Rhamnus cathartica, and Schoenoplectus tabermontani.
Collected by permit: City of Golden, 2024, issued: Mar 29, 2024, to: Tom Schweich.
Tom Schweich, with Cynthia Hastings
3245.
31-May-2024
Other articles: • Peaks to Plains Trail:
along the trail; Wild New Mexican Hops (Humulus neomexicanus) beside the Peaks to Plains Trail.
Tripp Ranch Meadow, Jefferson County, Colorado.
Very small (1.67 ac.) City of Golden-owned open space, adjacent to Jefferson County Open Space (Apex Park) and Stonebridge HOA common area, accessed by narrow passage from Crawford Street, 3.44 km. south of the GNIS location of Golden.
39.72481°N, 105.21653°W.
WGS 1984
Elev. 1861 m.
Flowers quite pink compared to others seen around Golden s.l.
On ridge near top of and entrance to parcel. Also here: Artemisia frigida, Artemisia ludoviciana, Grindelia squarrosa, Senecio integerrimus, Opuntia macrorhiza, O. polyacantha, Eriogonum umbellatum, Cercocarpus montanus, and Potentilla fissa
High mixed-grass prairie at base of Rocky Mountain Front Range.
Collected by permit: City of Golden, 2024, issued: Mar 29, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Beside dry streambed composed mostly of cobbles, 180 m. west southwest of the Coal Creek Canyon Fire Station 3, 13.9 km. northwest of Golden.
39.87256°N, 105.27962°W.
WGS 1984
Elev. 2040 m.
Also here: Cynoglossum officinale, Silene latifolia, Lupinus argentea, and Prunus virginiana.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
South side of gulch that drains by Coal Creek Canyon Fire Station No. 3, 567 m. southwest of the fire station, 14.0 km. northwest of Golden.
39.87207°N, 105.28415°W.
WGS 1984
Elev. 2107 m.
Open Douglas fir forest, with Cynoglossum officinale, Mertensia lanceolata, Veronica biloba, Androsace occidentalis, and Rubus deliciosus.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Cyperaceae
Carex rossii Boott.
Ross Sedge.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
On a terrace, right bank of the second creek on the south side of Coal Creek Canyon, the first being that of Blue Mountain Estates, 565 m. west southwest of Coal Creek Canyon Fire Department Station 3.
39.87211°N, 105.28411°W.
WGS 1984
Elev. 2108 m.
Open Douglas fir forest with little understory, and that of Physocarpus monogynus, with a large patch of a Veronica, c.f. V. biloba.
Smut-infected(?).
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3250.
10-Jun-2024
Coll. No. 3250, 10 June 2024, characters observed:
Perennial sedge, cespitose, to 30 cm.;
Leaves,
0.7 mm. wide,
green,
sheaths margins white-hyaline;
Inflorescence,
30 mm. × 5 mm. wide,
3-5 spikes;
Spikes,
basal present,
terminal staminate,
lateral, pistillate, 2-4;
Bracts,
proximal 20 mm.,
±= inflorescence,
leaf-like;
Pistillate scales,
3 mm.,
>perigynia,
green mid-vein, brown laterally, hyaline margin,
awn 0;
Perigynia,
2-4 per pistillate spike,
2.7 mm. × 1.7 mm. wide,
wingless,
pubescent,
beak 0.7-1.3 mm.,
bi-dentate;
Achene,
spherical,
1.5 mm. × 1.5 mm. wide,
black,
smut-infested?;
Stigma,
#3;
Anthers,
not seen.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Ruscaceae
Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie.
Feathery False Lily of the Valley.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
On a terrace, right bank of the second creek on the south side of Coal Creek Canyon, the first being that of Blue Mountain Estates, 725 m. west southwest of Coal Creek Canyon Fire Department Station 3, 14.0 km. northwest of Golden.
39.87174°N, 105.28588°W.
WGS 1984
Elev. 2135 m.
Open Douglas fir forest (little to no middlestory) with Physocarpus montanus and Prunus virginiana.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3251.
10-Jun-2024
Flower head of Coll. No. 3252, Arnica cordifolia.
Coll. No. 3252, Arnica cordifolia.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Asteraceae
Arnica cordifolia Hook.
Heart-Leaf Leopardbane.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
On a terrace, right bank of the second creek on the south side of Coal Creek Canyon, the first being that of Blue Mountain Estates, 787 m. west southwest of Coal Creek Canyon Fire Department Station 3, 14.0 km. northwest of Golden.
39.87137°N, 105.28656°W.
WGS 1984
Elev. 2155 m.
Open Douglas fir forest, with Acer glabrum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3252.
10-Jun-2024
Coll. No. 3252, 10 June 2024, characters observed:
Perennial, to 40 cm.,
rhizomes long and thin;
Stem,
simple (of 4 plants one was branched at base),
arachnoid hairy;
Leaves,
opposite,
1-2 pairs,
64 mm. × 42 mm. wide,
cordate,
margin dentate (to almost serrate);
Inflorescence,
heads solitary;
Receptacle,
epaleate;
Phyllaries,
1st series, 21 mm. × 3 mm. wide, green, margin chartaceous, pilose,
2nd series, very thin chartaceous;
Ray flowers,
fertile,
#11,
yellow,
tube 6.5 mm. + blade 25 mm. × 9.5 mm. wide;
Disc flowers,
many, yellow,
tube 10 mm. + lobes 1 mm.;
Pappus,
many,
9 mm.,
white,
capillary;
Cypsela,
6 mm.,
dark gray,
strigose.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Apiaceae
Aletes acaulis (Torr.) J.M. Coult. & Rose.
Stemless Indian Parsley.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
On a terrace, right bank of the second creek on the south side of Coal Creek Canyon, the first being that of Blue Mountain Estates, 936 m. west southwest of Coal Creek Canyon Fire Department Station 3, 14.0 km. northwest of Golden.
39.8708°N, 105.28817°W.
WGS 1984
Elev. 2197 m.
Rocky forest floor, on lower part of an rock outcrop prominent in aerial imagery.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Nose of ridge, 483 m. west southwest of Coal Creek Canyon Fire Station 33, 14.0 km. north northwest of Golden.
39.87187°N, 105.28302°W.
WGS 1984
Elev. 2129 m.
Petals 29 mm., orange, fruit ascending.
Open woodland with Pinus ponderosa, Cercocarpus montanus, and Potentilla fissa.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Centennial Cone Park, Jefferson County, Colorado.
In a small pass between Elk Creek and Guy Gulch, 870 m. southeast of the Ralph Schell Trailhead, 10.1 km. west northwest of Golden.
39.76798°N, 105.33786°W.
WGS 1984
Elev. 2322 m.
Montane grassland, with: Erigeron divergens, Echinocereus viridiflorus, and Oxytropis lambertii.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Centennial Cone Park, Jefferson County, Colorado.
In a small pass between Elk Creek and Guy Gulch, 870 m. southeast of the Ralph Schell Trailhead, 10.1 km. west northwest of Golden.
39.768°N, 105.33795°W.
WGS 1984
Elev. 2326 m.
Montane grassland, with: Artemisia frigida, Helianthus pumilis, and Heterotheca villosa.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Fabaceae
Oxytropis lambertii Pursh.
Purple Locoweed.
Centennial Cone Park, Jefferson County, Colorado.
In a small pass between Elk Creek and Guy Gulch, 870 m. southeast of the Ralph Schell Trailhead, 10.1 km. west northwest of Golden.
39.76797°N, 105.33787°W.
WGS 1984
Elev. 2322 m.
Montane grassland, with: Erigeron divergens, Echinocereus viridiflorus, and Koeleria macrantha.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Orobanchaceae
Castilleja integra A. Gray.
Wholeleaf Indian Paintbrush.
Centennial Cone Park, Jefferson County, Colorado.
In a small pass between Elk Creek and Guy Gulch, 860 m. southeast of the Ralph Schell Trailhead, 10.1 km. west northwest of Golden.
39.76811°N, 105.33795°W.
WGS 1984
Elev. 2324 m.
Montane grassland, also nearby: Harbouria trachypleura, Heterotheca villosa, Alyssum simplex, and Eriogonum arcuatum.
About 15 m. upslope from the other collections at this site.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Crassulaceae
Sedum lanceolatum Torr.
Spearleaf Stonecrop.
Centennial Cone Park, Jefferson County, Colorado.
Western slope of unnamed hill between Elk Creek and Guy Gulch, 880 m. southeast of Ralph Schell Trailhead, 10.6 km. west northwest of Golden.
39.76681°N, 105.33873°W.
WGS 1984
Elev. 2332 m.
Also seen here: Harbouria trachypleura, Pediocactus simpsonii, Astragalus laxmannii robustior, Eriogonum arcuatum, Cercocarpus montanus, and Potentilla fissa.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Polygonaceae
Eriogonum umbellatum Torr. var. umbellatum.
Sulphur-Flower Buckwheat.
Centennial Cone Park, Jefferson County, Colorado.
Slope above right bank of Elk Creek, near junction of Travois Trail and Evening Sun Loop, 760 m. southeast of the Ralph Schell Trailhead, 10.3 km. west northwest of Golden.
39.76752°N, 105.33977°W.
WGS 1984
Elev. 2303 m.
Grassy east-facing slope above creek, with: Artemisia dracunculus, Artemisia frigida, Helianthus pumilus, and Bromus inermis.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Fabaceae
Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh.
Prairie Milkvetch.
Centennial Cone Park, Jefferson County, Colorado.
South-facing slope above tributary of Elk Creek, between Elk Range Trail and Evening Sun Loop, 698 m. southeast of the Ralph Schell Trailhead, 10.3 km. west northwest of Golden.
39.76765°N, 105.34058°W.
WGS 1984
Elev. 2304 m.
Montane grassland, with: Rhus trilobata, Heterotheca villosa, Astragalus flexuosus, Eriogonum arcuatum, and Hesperostipa comata.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Orobanchaceae
Orobanche fasciculata Nutt.
Clustered Broomrape.
Centennial Cone Park, Jefferson County, Colorado.
South-facing slope above tributary of Elk Creek, between Elk Range Trail and Evening Sun Loop, 680 m. southeast of the Ralph Schell Trailhead, 10.3 km. west northwest of Golden.
39.76795°N, 105.34056°W.
WGS 1984
Elev. 2315 m.
Montane grassland, with: Artemisia frigida, Helianthus pumilus, Heterotheca villosa Eriogonum umbellatum, and Carex inops heliophila.
Numerous plants seen here, 15±.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Centennial Cone Park, Jefferson County, Colorado.
South-facing slope above tributary of Elk Creek, between Elk Range Trail and Evening Sun Loop, 658 m. southeast of the Ralph Schell Trailhead, 10.3 km. west northwest of Golden.
39.76817°N, 105.34066°W.
WGS 1984
Elev. 2318 m.
Montane grassland, with: Helianthus pumilis, Erysimum capitatum, Linum lewisii, and Erigonum alatum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Centennial Cone Park, Jefferson County, Colorado.
South-facing slope above tributary of Elk Creek, between Elk Range Trail and Evening Sun Loop, 533 m. southeast of the Ralph Schell Trailhead, 10.5 km. west northwest of Golden.
39.76852°N, 105.34211°W.
WGS 1984
Elev. 2321 m.
Rocky ridge, soil covered with mosses.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Centennial Cone Park, Jefferson County, Colorado.
South-facing slope above tributary of Elk Creek, between Elk Range Trail and Evening Sun Loop, 403 m. southeast of the Ralph Schell Trailhead, 10.6 km. west northwest of Golden.
39.76968°N, 105.34293°W.
WGS 1984
Elev. 2338 m.
Montane grassland.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3265.
14-Jun-2024
Locations: Schweich Hill.
Opuntia macrorhiza on Schweich Hill.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Rubiaceae
Galium boreale L.
Bedstraw.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Edge of forest opening, 75 m. southwest of Coal Creek, 1.52 km. west northwest of Fire Station 3, 15.0 km. north northwest of Golden.
39.87821°N, 105.29416°W.
WGS 1984
Elev. 2065 m.
Open woodland with Pinus ponderosa, Pseudotsuga menziesii, Apocynum sp., Artemisia sp., Berberis repens, and Geranium cespitosum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Berberidaceae
Berberis repens Lindl.
Creeping Barberry.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Edge of forest opening, 75 m. southwest of Coal Creek, 1.52 km. west northwest of Fire Station 3, 15.0 km. north northwest of Golden.
39.87823°N, 105.29413°W.
WGS 1984
Elev. 2070 m.
In fruit, green when collected, fading to a dark brown.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Apocynum sp., initially determined A. androsaemifolium.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Apocynaceae
Apocynum ×floribundum Greene.
Dogbane.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Edge of forest opening, 75 m. southwest of Coal Creek, 1.52 km. west northwest of Fire Station 3, 15.0 km. north northwest of Golden.
39.87817°N, 105.29412°W.
WGS 1984
Elev. 2067 m.
Leaves spreading to descending. Various ratios of calyx tube and lobes to corolla tube and lobes in 1.75 to 2.167 range. Corolla lobes spreading.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3268.
21-Jun-2024
Coll. No. 3268, 21 June 2024, characters observed:
Leaves, spreading to slightly descending;
Calyx, tube 1 mm. + lobes 2 mm. = 3 mm.;
Corolla, tube 3.5-4 mm. + lobes 2.5 mm. = 6.0-6.5 mm., lobes spreading;
Ratio: calyx 3 mm.:corolla 6.5 mm. = 2.167× is inconclusive per Ackerfield (2022), Weber&Wittmann (2012), and Welch, et al. (1993);
Ratio: corolla tube 3.5-4 mm.:calyx lobe 2 mm. = 1.75-2× suggests A. ×floribundum per FNA.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 110 m. southwest of Coal Creek, 1.54 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.87804°N, 105.29453°W.
WGS 1984
Elev. 2073 m.
Sunny openings in ponderosa pine and Douglas fir forest. Also here: Acer glabrum, Prunus virginiana, Geranium caespitosum, and Amelanchier alnifolia.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3269.
21-Jun-2024
Perennial, 1 m., sunny mountain valley slope;
Leaves,
tripinnately compound;
Leaflets,
well-defined,
ultimate leaf division, 2-3 mm.;
Inflorescence,
compound umbel;
Involucral bractlets,
green, few;
Flowers,
white;
Ovary,
glabrous;
Stylopodium,
conic, frilled;
Fruit,
glabrous;
(Described from Coll. No. 3248, 10 June 2024, and Coll. No. 3269, 21 June 2024.)
Lithospermum multiflorum in Coal Creek Canyon Study Area.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Boraginaceae
Lithospermum multiflorum Torrey ex A. Gray.
Many Flowered Stoneseed.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 250 m. southwest of Coal Creek, 1.64 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.87754°N, 105.29595°W.
WGS 1984
Elev. 2098 m.
Small opening in forest, with Pinus ponderosa, Acer glabrum, Amelanchier alnifolia, and Geranium caespitosum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Cyperaceae
Carex occidentalis L. H. Bailey.
Western Sedge.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 240 m. southwest of Coal Creek, 1.62 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.8775°N, 105.29574°W.
WGS 1984
Elev. 2098 m.
Under forest canopy, with Pseutotsuga menziesii, and Acer glabrum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 280 m. southwest of Coal Creek, 1.67 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.87722°N, 105.29641°W.
WGS 1984
Elev. 2106 m.
Douglas fir forest, also here: Physocarpus montanus, Viola canadensis, and Maianthemum racemosum ssp. amplexicaule.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Boraginaceae
Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes.
Western Marbleseed.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 220 m. southwest of Coal Creek, 1.65 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.87787°N, 105.29605°W.
WGS 1984
Elev. 2099 m.
Sunny southeast-facing grassland, with Artemisia dracunculus, Heterotheca villosa, Opuntia polyacantha, Castilleja integra, and Rosa arkansana.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Saxifragaceae
Heuchera parvifolia Nutt. ex Torr. & A. Gray.
Littleleaf Alumroot.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Second primary drainage of Lacey parcel, about 285 m. southwest of Coal Creek, 1.64 km. west northwest of Coal Creek Canyon Fire Station #3, 15.0 km. northwest of Golden.
39.87764°N, 105.29595°W.
WGS 1984
Elev. 2094 m.
Bank of creek, with Pinus ponderosa, Osmorhiza depauperata, Hydrophyllum fendleri, and Acer glabrum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Fabaceae
Lupinus argenteus Pursh var. rubricaulis (Greene) S.L. Welsh.
Silvery Lupine.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Opening in forest on right bank of creek, 105 m. southwest of Coal Creek,1.55 km. west northwest of Coal Creek Fire Station #3, 15.0 km. north northwest of Golden.
39.878°N, 105.29458°W.
WGS 1984
Elev. 2076 m.
Tall, lacking basal leaves, petals mostly white, blue-tinged wings.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Boraginaceae
Hackelia floribunda (Lehm.) I. M. Johnst.
Many-Flowered Stickseed.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Terrace about 80 m. south of Coal Creek, 1.49 km. west northwest of Coal Creek Fire Station #3, 15.0 km. north northwest of Golden.
39.878°N, 105.29397°W.
WGS 1984
Elev. 2071 m.
Openings in mixed Douglas fir and ponderosa pine forest with Apocynum sp., Rubus deliciosus, and Thalictrum fendleri.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Forest glade on right bank of Coal Creek, 1.37 km. west northwest of Coal Creek Fire Station #3, 14.9 km. north northwest of Golden.
39.87786°N, 105.29247°W.
WGS 1984
Elev. 2057 m.
Forest glade in openings between Pinus ponderosa, with Eriogonum umbellatum, Clematis hirsuta, and Bromus inermis.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3278.
21-Jun-2024
It was suggested to me that “... the type of P. pulcherrima itself is subpalmate,
and possibly part of the hybrid swarm between P. hippiana and what should probably be called P. filipes” (BAE, personal communication January, 2023).
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Fabaceae
Lupinus argenteus Pursh var. argenteus.
Loosely Flowered Silver Lupine.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
North side of Coal Creek, south-facing bank between Colorado State Highway 72 “Coal Creek Canyon Road” and the creek, 1.42 km. northwest of Coal Creek Fire Station #3, 1.50 km. north northwest of Golden.
39.87924°N, 105.29231°W.
WGS 1984
Elev. 2067 m.
Disturbed grassland in openings between Pinus ponderosa, with Eriogonum umbellatum, Clematis hirsuta, and Bromus inermis.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3279.
21-Jun-2024
Locations: Magpie Gulch.
Bag of pea gravel in a area of unauthorized trail maintenance.
Small cascade in Magpie Gulch.
Plants of Jefferson County Open Space Jefferson County, Colorado
Phrymaceae
Erythranthe floribunda (Douglas ex Lindl.) G. L. Nesom.
Many Flowered Monkey Flower.
Magpie Gulch, Jefferson County, Colorado.
Southeast corner of Mount Galbraith Park, 2.17 km. west northwest of the GNIS location of Golden.
39.7588°N, 105.24606°W.
WGS 1984
Elev. 1910 m.
Calyx inflated in fruit, teeth nearly equal; Corolla yellow.
Small cascade over bedrock, with mosses, Dodecatheon pulchelllum, Potentilla norvrgica, Heuchera parvifolia, and Eleocharis sp.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Cyperaceae
Eleocharis quinqueflora (Hartmann) O. Schwarz.
Fewflower Spikerush.
Magpie Gulch, Jefferson County, Colorado.
Southeast corner of Mount Galbraith Park, 2.17 km. west northwest of the GNIS location of Golden.
39.75883°N, 105.24608°W.
WGS 1984
Elev. 1909 m.
Small cascade over bedrock, with mosses, Erythranthe floribunda, Dodecatheon pulchelllum, Potentilla norvegica, and Heuchera parvifolia.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Rosaceae
Potentilla norvegica L.
Norwegian Cinquefoil.
Magpie Gulch, Jefferson County, Colorado.
Southeast corner of Mount Galbraith Park, about 690 m. west of Canyon Point Circle, 2.17 km. west northwest of the GNIS location of Golden.
39.75886°N, 105.24608°W.
WGS 1984
Elev. 1909 m.
Near a small cascade over bedrock, drying mud and grasses away from creek, with Erythranthe floribunda, Dodecatheon pulchellum, Eleocharis sp., and Poa pratensis.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Juncaceae
Juncus bufonius L.
Toad Rush.
Magpie Gulch, Jefferson County, Colorado.
Southeast corner of Mount Galbraith Park, about 690 m. west of Canyon Point Circle, 2.17 km. west northwest of the GNIS location of Golden.
39.75886°N, 105.24608°W.
WGS 1984
Elev. 1909 m.
Near a small cascade over bedrock, drying mud and grasses away from creek, with Erythranthe floribunda, Dodecatheon pulchellum, Potentilla norvegica, Eleocharis sp., and Poa pratensis.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3282.1
26-Jun-2024
Obs. No. 3721, Asclepias viridiflora in Magpie Gulch.
Obs. No. 3721, Asclepias viridiflora in Magpie Gulch.
Plants of Jefferson County Open Space Jefferson County, Colorado
Rosaceae
Potentilla gracilis Hook. var. fastigiata (Nutt.) S. Watson.
Slender Cinquefoil.
Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado.
Open field off of Plainview Road, 1.2 miles west on CO State Highway 72 "Coal Creek Canyon Road" from CO State Highway 93, 0.9 miles generally north on Plainview Road, then 130 m. generally west into field.
39.88577°N, 105.2636°W.
WGS 1984
Elev. 1949 m.
Uncommon. Average leaflet incision <½.
Open grassy field that is a little wetter than most, also here: Helianthus pauciflorus ssp. subrhomboideus, Sonchus asper, Opuntia fragilis (in nearby gravel bar), and Sisyrinchium montanum.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Polygonaceae
Rumex triangulivalvis (Danser) Rech. f.
Triangular-Valved Dock.
Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado.
1.7 miles west on CO Highway 72 from CO Highway 93, then 0.9 miles generally north on Plainview Road, then about 215 m. west to south side of a small dam across creek.
39.8864°N, 105.26434°W.
WGS 1984
Elev. 1954 m.
Inner tepals with a tubercle, margins entire; leaf margins flat.
Also here: Gratiola neglecta, Persicaria pensylvanica, Alisma triviale, and Eleocharis palustris.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of Jefferson County Open Space Jefferson County, Colorado
Apiaceae
Cicuta maculata L. var. angustifolia Hook.
Spotted Water Hemlock.
Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado.
1.7 miles west on CO Highway 72 from CO Highway 93, then 0.9 miles generally north on Plainview Road, then about 575 m. generally west along small creek. 15.1 km. north northwest of Golden.
39.88677°N, 105.2685°W.
WGS 1984
Elev. 1991 m.
Growing in creek, also nearby: Heliomeris multiflora, Mentha arvensis, Lysimachia ciliata, Ranunculus pensylvanicus, and Galium boreale.
Infraspecific names are not accepted by current Colorado florae.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Left bank of Coal Creek, 1.31 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87843°N, 105.29144°W.
WGS 1984
Elev. 2049 m.
Streamside, in a veritable rogues' gallery of weeds: Cynoglossum officinale, Hypericum perforatum, Potentilla recta, Verbascum thapsus, and Dactylis glomerata.
Colorado Noxious Weed List B.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3286.
3-Jul-2024
Coll. No. 3286, 3 July 2024, characters observed:
Annual herb, to 60 cm.;
Stem,
glabrous;
Leaves,
cauline,
petiole, 0 mm.,
blade, 50 mm. × 12 mm. wide, reduced distally,
divided, 2× pinnate, lobes filiform;
Inflorescence,
in heads, not overlopped by leaves;
Peduncles,
25-70 mm.;
Involucre,
4 mm. × 11 mm. wide,
glabrous,
Phyllaries,
in 3± equal series,
5.2 mm. × 1 mm. wide,
tongue-shaped,
strong central vein, mostly tan-brown,
glabrous;
Receptacle,
epaleate;
Flowers of 2 kinds;
Rays,
#20-24,
tube 2 mm. + blade 9 mm. × 2.8 mm. wide,
white,
fertile;
Disc flowers,
many,
tube 1.5 mm. +lobes 0.5 mm.;
yellow,
open;
Pappus,
scales, coroniform,
0.3 mm.,
±equal;
Cypsela,
1.2 mm.,
winged,
blown,
tuberculate(?).
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Hypericaceae
Hypericum perforatum L.
Common St. John's Wort.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Left bank of Coal Creek, 1.31 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87843°N, 105.29143°W.
WGS 1984
Elev. 2049 m.
Streamside, in a veritable rogue's gallery of weeds: Tripleurospermum inodorum, Cynoglossum officinale, Potentilla recta, Verbascum thapsus, and Dactylis glomerata.
Colorado Noxious Weed list C.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Ranunculaceae
Ranunculus acris L.
Tall Buttercup.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Right bank of Coal Creek, 1.31 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.8783°N, 105.29141°W.
WGS 1984
Elev. 2051 m.
Leaf segments broad, achene beak short.
Creekside with dense willows and Rocky Mountain maple.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Onagraceae
Epilobium ciliatum Raf.
Fringed Willowherb.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Bottom of a small watercourse, about 25 m. south of the right bank of Coal Creek, 1.30 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87811°N, 105.2914°W.
WGS 1984
Elev. 2052 m.
Broken shade in ponderosa pine and Douglas fir forest.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Asteraceae
Leucanthemum vulgare (Vaill.) Lam.
Ox-eye Daisy.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Right bank of Coal Creek, 1.24 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87829°N, 105.29057°W.
WGS 1984
Elev. 2050 m.
Streamside sand bank.
Colorado Noxious Weed List B.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3289.
3-Jul-2024
Coll. No. 3289 & 3290, 3 Jul 2024, characters observed:
Perennial herb, to 75 cm.,
creeping rootstock;
Stem,
glabrous,
proximally purple, distally green;
Leaves,
basal withered at anthesis,
cauline,
alternate,
sessile,
blade, 47-52 mm. × 15 mm. wide,
reduced distally,
spatulate,
irregularly toothed,
glabrous;
Involucre,
4 mm. × 11 mm. wide,
±flat;
Phyllaries,
in 3± series,
unequal,
lower < upper;
7 mm. × 2 mm. wide,
green with dark-brown scarious margins,
eglandular,
margins, flat;
Receptacle,
epaleate;
Flowers of 2 kinds;
Rays,
#30±,
tube 2 mm. + blade 12 mm. × 3.5 mm. wide,
white;
Disc flowers,
many,
tube 2 mm. + lobes 0.5 mm.,
yellow;
Pappus,
absent;
Cypsela,
1.5 mm.,
glabrous,
black with many (10?) tan ribs,
dehiscing readily.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Asteraceae
Leucanthemum vulgare (Vaill.) Lam.
Ox-eye Daisy.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Right bank of Coal Creek, 1.20 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87825°N, 105.29008°W.
WGS 1984
Elev. 2047 m.
Dry ephemeral sandy stream channel.
Colorado Noxious Weed List B.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Tom Schweich
3290.
3-Jul-2024
Coll. No. 3289 & 3290, 3 Jul 2024, characters observed:
Perennial herb, to 75 cm.,
creeping rootstock;
Stem,
glabrous,
proximally purple, distally green;
Leaves,
basal withered at anthesis,
cauline,
alternate,
sessile,
blade, 47-52 mm. × 15 mm. wide,
reduced distally,
spatulate,
irregularly toothed,
glabrous;
Involucre,
4 mm. × 11 mm. wide,
±flat;
Phyllaries,
in 3± series,
unequal,
lower < upper;
7 mm. × 2 mm. wide,
green with dark-brown scarious margins,
eglandular,
margins, flat;
Receptacle,
epaleate;
Flowers of 2 kinds;
Rays,
#30±,
tube 2 mm. + blade 12 mm. × 3.5 mm. wide,
white;
Disc flowers,
many,
tube 2 mm. + lobes 0.5 mm.,
yellow;
Pappus,
absent;
Cypsela,
1.5 mm.,
glabrous,
black with many (10?) tan ribs,
dehiscing readily.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Betulaceae
Corylus cornuta Marshall.
Beaked Hazelnut.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Right bank of Coal Creek, 1.19 km. west northwest of Coal Creek Canyon Fire Station #3, 14.8 km. north northwest of Golden.
39.87821°N, 105.28998°W.
WGS 1984
Elev. 2046 m.
Dense vegetation of willows, ponderosa pine, and Douglas fir on the upper bank of Coal Creek.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Ranunculaceae
Thalictrum fendleri Engelm. ex A. Gray.
Fendler's Meadow Rue.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Terrace above right bank of Coal Creek, about 15 m south of the creek, 1.24 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87817°N, 105.29068°W.
WGS 1984
Elev. 2049 m.
Pistilate plants, in fruit.
Shaded edge of ponderosa pine woodland.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Cyperaceae
Carex L.
Sedge.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Terrace above right bank of Coal Creek, about 45 m south of the creek, 1.29 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87796°N, 105.29142°W.
WGS 1984
Elev. 2052 m.
Stem sharply 3-angled.
Bank of very small creek, also here: Lysimachia ciliata, Glyceria striata.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Poaceae
Glyceria striata (Lam.) Hitchc.
Striate Manna Grass.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Terrace above right bank of Coal Creek, about 45 m south of the creek, 1.31 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.87796°N, 105.2916°W.
WGS 1984
Elev. 2053 m.
Late collection, shattered badly.
Shade of mixed Douglas fir and ponderosa pine forest, with Lysimachia ciliata, and Carex sp.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Plants of the Coal Creek Canyon Study Area Jefferson County Open Space, Colorado, USA
Primulaceae
Lysimachia ciliata L.
Fringed Loosestrife.
Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado.
Terrace above right bank of Coal Creek, about 30 m south of the creek, 1.31 km. west northwest of Coal Creek Canyon Fire Station #3, 14.9 km. north northwest of Golden.
39.8781°N, 105.29158°W.
WGS 1984
Elev. 2053 m.
Forest glade in openings of Douglas fir and ponderosa pine, with: Epilobium ciliatum, Carex sp., and Glyceria striata.
Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.
Orthilia secunda (L.) House.
Sidebells Wintergreen.
Morrison Creek, Jefferson County, Colorado.
Terrace above Morrison Creek, just south of the Little Scraggy Trail, 1.61 km. west of Kelsey Campground, 50.8 km. south of Golden.
39.30721°N, 105.28454°W.
WGS 1984
Elev. 2591 m.
Damp forest floor, with decaying wood and bryophytes, also collected here: Osmorhiza depauperata, Pyrola chlorantha, Rubus pubescens, and Oryzopsis asperifolia.
Tom Schweich, with Cathy Hansen-Stamp, Cynthia Hastings, Meg Van Ness
3297.
12-Jul-2024
Obs. No. 3756, Heuchera hallii.
Heuchera hallii.
Obs. No. 3757, Asplenium septentrionale.
Asplenium septentrionale
Obs. No. 3758, Laennecia schiedeana.
Laennecia schiedeana.
Obs. No. 3759, Collomia linearis.
Collomia linearis.
Locations: Coal Creek Canyon Study Area, Lacey Parcel.
Where I am headed today … the grassy slope in the middle ground.
Obs. No. 3770, habitat of Pericome caudata in Coal Creek Canyon.
Friday, 19 July 2024
Coal Creek Canyon Study Area, Lacey Parcel
Upper grassy slope.
View back across Coal Creek Canyon.
Flood debris (from 2013?) buttressed by two Douglas fir.
There was a small herd of wild horses in Big Sand Flat.
They were more or less bothered by people parking in the flat, and trying to walk amongst the herd.
When we were sitting at dinner last night, we began to wonder whether we needed a reservation to drive through Yosemite National Park
on our way to San Luis Obispo.
Checking our phones, it turned out that today was the last day that reservations were required for 2024.
The cashier at Nicely's said she had heard of people without reservations being alowed to drive through the park.
So we tried it.
Got a lecture from the ranger at the Tioga Pass gate, but they let us drive through the park.
Stopped at Olmstead Point and Wawona Tunnel for a view, but otherwise drove straight through the park.
Yosemite Valley and Half Dome from Inspiration Point (Wawona Tunnel).
Wikieup is in southeastern Mohave County in the valley of the Big Sandy River, between the Hualapai Mountains to the west and the Aquarius Mountains to the east. U.S. Route 93 passes through the community, leading northwest 54 miles (87 km) to Kingman, the Mohave county seat, and southeast 74 miles (119 km) to Wickenburg.
A tall perennial with several stems from the short caudex.
Stem 3-5 dm. high, slender, silky-hirsute, simple up to the inflorescence :
few-leaved: basal leaves mostly 7-foliolate, digitate,
with hirsute petioles, 5-15 cm. long ; leaflets obovate to oblanceolate,
obtuse, coarsely crenate, 2-6 cm. long, green and sparingly
strigose above, white-tomentose beneath ; stem-leaves similar, but
smaller, usually 5-foliolate, short-petioled: stipules ovate-lanceolate,
entire: cyme open: pedicels very slender, as well as the
hypanthium and calyx silky hirsute and more or less viscid:
bractlets linear-lanceolate, a little shorter than the lanceolate, acute
sepals: petals yellow or somewhat orange, broadly obcordate or
obovate and emarginate, 6-8 mm. long, exceeding the sepals :
stamens about 20.
This species is nearest related to P. pulcherrima Lehm., and I
had referred all the specimens cited below, except the type, to that
species.
It differs from P. pulcherrima in the very slender pedicels,
the total lack of tomentum on the hypanthium and the calyx and
the evident viscidity of these organs and the pedicels. It grows in
mountain meadows and on hillsides at an altitude of 2400-3200 m.
Colorado:
Wahatoya Cañon, Spanish Peaks, 1900, Rydberg & Vreeland, 6039 (type);
West Mancos Cañon, 1898, Baker, Earle & Tracy, 306;
La Plata Mountains, 182.
Montana:
Bridger Mountains, 1896, J. H. Flodman, 561.
… increasing free-roaming horse numbers
… affected vital rates for important life stages of sage-grouse … (Beck, et al., 2024)
Both the mtDNA and the microsatellite data suggest that the Bi-State Greater Sage-grouse are
genetically unique from Greater Sage-grouse elsewhere across the range.
As has been suggested previously (Oyler-McCance and others, 2005a), the Bi-State Greater
Sage-grouse are genetically unique and warrant special attention. Maintaining the genetic integrity of
this population could protect the evolutionary potential of this population of Greater Sage-grouse.
The amount of genetic differentiation between the Bi-State birds is similar to if not greater than
the amount of genetic difference between the Gunnison Sage-grouse and neighboring Greater Sage-
grouse in Colorado.
Unlike Gunnison Sage-grouse, however, Bi-State
Greater Sage-grouse have not developed the distinct differences in plumage, morphology, and behavior that have led to the reproductive isolation and
speciation in Gunnison Sage-grouse. (Oyler-McCandace & Casazza, 2011)
Other articles: • Social Trail (Parfet Estates Drive to Landing Zone):
on the slope;
If you have a question or a comment you may write to me at:
tomas@schweich.com
I sometimes post interesting questions in my FAQ, but I never disclose your full name or address.
Eastern Mojave Vegetation
Staminate catkins on Coll. No. 3233, Populus deltoides.
Fragmenting collection of staminate catkins, Coll. No. 3233, Populus deltoides monilifera.
Pistillate catkins on Coll. No. 3235, Populus deltoides.
Coll. No. 3237, Cirsium vulgare.
Coll. No. 3237, basal rosette of Cirsium vulgare.
Coll. No. 3238, Xanthoceras sorbifolium.
Coll. No. 3240, Physaria vitulifera.
Coll. No. 3241, Physaria vitulifera.
Coll. No. 3242, Oxytropis sericea var. sericea.
Coll. No. 3243, Ipomopsis spicata.
Coll. No. 3243.1, Euphorbia brachycera.
Coll. No. 3244, Packera plattensis.
Coll. No. 3245, Populus deltoides var. monilifera.
Coll. No. 3247, Physocarpus monogynus.
Coll. No. 3247, Physocarpus monogynus.
Coll. No. 3250, Carex rossii.
Inflorescence of Coll. No. 3250, Carex rossii.
Flower head of Coll. No. 3252, Arnica cordifolia.
Coll. No. 3252, Arnica cordifolia.
Coll. No. 3526, Penstemon secundiflorus.
Oribanche fasciculata in Artemisia frigida.
Coll. No. 3265, Crepis occidentalis ssp. costata.
Habitat of Coll. No. 3266, Galium boreale in Coal Creek Canyon.
Lithospermum multiflorum in Coal Creek Canyon Study Area.
Coll. No. 3272, Poa interior.
Coll. No. 3274, Heuchera parvifolia.
Coll. No. 3276, Lupinus argenteus var. rubricaulis.
Coll. No. 3280, 26 June 2024.
Coll. No. 3282, Potentilla norvegica.
Obs. No. 3721, Asclepias viridiflora in Magpie Gulch.
Obs. No. 3721, Asclepias viridiflora in Magpie Gulch.
Coll. No. 3283, Potentilla gracilis var. fastigiata.
Coll. No, 3283, Potentilla gracilis var. fastigiata.
Coll. No. 3284, Rumex triangulivalvis.
Coll. No. 3285, Cicuta maculata var. angustifolia
Obs. No. 3279, Opuntia fragilis.
Habitat of Obs. No. 3279, Opuntia fragilis.
Obs. No. 3729, ???
Obs. No. 3729, ???
A Rogues' Gallery of weeds along Coal Creek.
Coll. No. 3286, Tripleurospermum inodorum
Coll. No. 3287, Ranunculus acris.
Coll. No. 3288, Epilobium ciliatum.
Coll. No. 3290, Leucanthemum vulgare.
Coll. No. 3291, Corylus cornuta.
Coll. No. 3292, Thalictrum fendleri in fruit.
Coll. No. 3292, Thalictrum fendleri.
Inforescence of Coll. No. 3293, Carex sp.
Obs. No. 3756, Heuchera hallii.
Obs. No. 3757, Asplenium septentrionale.
Obs. No. 3758, Laennecia schiedeana.
Obs. No. 3759, Collomia linearis.
Coll. No. 3301, Oenothera, probably O. elata.
Coll. No. 3307, Castilleja integra.
Coll. No. 3312, Ribes inerme.
