2022

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

Dakota Ridge, Jefferson County, Colorado. Lower slopes of hogback in northernmost Golden, 4.1 km. north northwest of the GNIS location of Golden. 39.7811°N, 105.2377°W. WGS 1984 Elev. 1867 m. Southwest facing slope: with Euphorbia esula, Grindelia squarrosa, Taraxacum officinale, Gutierrezia sarothrae, Artemisia ludoviciana, A. frigida, Andropogon gerardi, and Escobaria vivipara.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

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

Dakota Ridge, Jefferson County, Colorado. Lower western slope of hogback in northernmost Golden, 4.3 km. north northwest of the GNIS location of Golden. 39.7822°N, 105.2384°W. WGS 1984 Elev. 1873 ,. Also here: Linum lewisii, Bromus inermis, Yucca glauca, and Liatris punctata. Seven plants here; one collected.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Nothocalais cuspidata (Pursh) Greene.  Prairie False Dandelion.

Dakota Ridge, Jefferson County, Colorado. Lower western slope of hogback in northernmost Golden, 4.2 km. north northwest of the GNIS location of Golden. 39.7817°N, 105.2383°W. WGS 1984 Elev. 1873 m. About ¼ up the west limb, sparsely vegetated soil; with Rhus trilobata, Yucca glauca, Linum lewisii, Eriogonum alatum, Poa sp., and Euphorbia esula.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Prunus americana Marshall.  American Plum.

Dakota Ridge, Jefferson County, Colorado. South end of hogback in northernmost Golden, 4.0 km. north northwest of the GNIS location of Golden. 39.7805°N, 105.2371°W. WGS 1984 Elev. 1855 m. Starting to bloom, leaves not emerged yet. South end of clay mines, behind the fence, with Pinus ponderosa. (I reached through the fence to make the collection; did not climb over it.)

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Polygonum aviculare L.  Prostrate Knotweed.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Adventive annual weed found in hydroseeded beds. Collected to prepare educational materials for City of Golden volunteer weeding program.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Erodium cicutarium (L.) L'Her. ex Aiton.  Hemlock-leav'd Crane's-bill.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual or biennial. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

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

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Lepidium draba L.  White Top.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Adventive annual. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Euphorbia myrsinites L.  Myrtle Spurge.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Known to be in this parcel before construction. Colorado Noxious Weed List A.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Conium maculatum L.  Common Poison Hemlock.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Growing on side of small watercourse, probably pre-dates designation of park and construction. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Chenopodium album L.  Lambsquarters.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual adventive weed.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Lamium amplexicaule L.  Henbit.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. 39.7486°N, 105.2082°W. WGS 1984 Elev. 1761 m. Annual adventive weed.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Onopordum acanthium L.  Scotch Cottonthistle.
     (Determination tentative.)

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Basal rosette, new growth densely tomentose.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Cirsium arvense (L.) Scop.  Canada Thistle.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Basal leaves, shallowly dentate, spinulose; petiole narrowly winged, bases tapered. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Convolvulus arvensis L.  Field Bindweed.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Kochia scoparia (L.) Schrad.  Common Red Sage.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Seedlings. Sterile.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Onopordum acanthium L.  Scotch Cottonthistle.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. The leaves have been lightly brushed to remove sand, but this has affected the tomentum. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Nepeta racemosa Lam.  Persian Catmint.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Purple cast throughout plant, inflorescence immature, possibly N. racemosa Lam. rather than the more common N. cataria L.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Rumex crispus L.  Curley Dock.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Sterile specimen, determination tentative.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Lactuca serriola L.  Prickly Lettuce.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Dichanthemium oligosanthes (J. A. Schultes) Gould ssp. scribnerianum (Nash) Freckmann & Lelong.  Few-Flowered Panicgrass.

Apex Park - Northern Parcel, Jefferson County, Colorado. Unnamed gulch about 1/3 of the way up the initial Front Range scarp, 3.75 km. south of the GNIS location of Golden. 39.7219°N, 105.2204°W. WGS 1984 Elev. 1938 m. Growing in fractures in rocks.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Poa bulbosa L.  Bulbous Bluegrass.

Apex Park - Northern Parcel, Jefferson County, Colorado. Unnamed gulch about 1/3 of the way up the initial Front Range scarp, 3.75 km. south of the GNIS location of Golden. 39.7219°N, 105.2377°W. WGS 1984 Elev. 1938 m. Immature. In soil near but not in the creek.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Clematis columbiana (Nutt.) Torr. & A. Gray.  Rock Clematis.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 100 m.northeast of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7338°N, 105.2377°W. WGS 1984 Elev. 2202 m. Petals light-lavender. Near top of initial Front Range slope in Douglas Fir forest with Acer glabrum “Rocky Mountain Maple,” Berberis repens, and Mertensia lanceolata. Variety columbiana if infraspecific names are to be applied.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Berberis repens Lindl.  Creeping Barberry.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 100 m.northeast of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7338°N, 105.2377°W. WGS 184 Elev. 2210 m. Open forest floor near top of initial Front Range slope in Douglas Fir forest with Acer glabrum “Rocky Mountain Maple,” Clematis columbiana, and Mertensia lanceolata.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 140 m. east of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7337°N, 105.2372°W. WGS 1984 Elev. 2202 m. Glabrous, basal rosette, clasping stem leaves auriculate, fruit flattened 90° to replum, petals white, Open forest, Pseudotsuga menziesii, Berberis repens, Frasera speciosa, Taraxacum officinale, small patch ± 60 plants. Subspecies glauca is the only infraspecific taxon known from Colorado.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Viola canadensis L.  Canadian White Violet.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 375 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.36 km. southwest of the GNIS location of Golden. 39.7353°N, 105.2358°W. WGS 1984 Elev. 2070 m. Edge of Douglas fir forest at bottom of canyon; seen nearby: Anemone patens, Ribes cereum, Amelanchier alnifolia, Acer glabrum, Galium boreale, and Anaphalis margaritacea.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 480 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.30 km. southwest of the GNIS location of Golden. 39.7354°N, 105.2349°W. WGS 1984 Elev. 2047 m. Sunny spot at edge of Douglas fir forest, also seen here: Anemone patens, Amelanchier alnifolia, and Viola canadensis.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Windy Saddle Park, Jefferson County, Colorado. Around an unnamed spring in the southeast corner of Windy Saddle Park, about 610 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.17 km. southwest of the GNIS location of Golden. 39.736°N, 105.234°W. WGS 1984 Elev. 2018 m. Also here: Juniperus scopulorum, Noccaea fendleri, Prunus americana, Rubus idaeus var. strigosus, and Frasera speciosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Carex praegracilis W. Boott.  Clustered Field-Sedge.

Windy Saddle Park, Jefferson County, Colorado. Unnamed gulch above the Colorado School of Mines Survey Field, beside flowing water from a mine adit, 830 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.00 km. southwest of the GNIS location of Golden. 39.7367°N, 105.2322°W. WGS 1984 Elev. 1957 m. Also collected nearby from this or previous visits: Campanula rotundifolia, Pseudostellaria jamesiana, and Monarda fistulosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Pseudostellaria jamesiana (Torr.) W. A. Weber & R. L. Hartm.  Tuber Starwort.

Windy Saddle Park, Jefferson County, Colorado. Unnamed gulch above the Colorado School of Mines Survey Field, 875 m. northeast of, and downslope from, the Buffalo Bill Museum, and 2.97 km. southwest of the GNIS location of Golden. 39.7368°N, 105.2318°W. WGS 1984 Elev. 1950 m. Growing in rock outcrops on northwest side of a ridge, among Juniperus scopulorum and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Rhamnus cathartica L.  European Buckthorn.

Apex Park - Northern Parcel, Jefferson County, Colorado. Just insude the northeast corner of Apex Park - North, about 61 m. from the northeast property corner, 4.43 km. south of the GNIS location of Golden 39.7251°N, 105.2171°W. WGS 1984 Elev. 1842 m. Lf. margin crenate, teeth with dark gland, style 4-parted. Beside intermittent stream, edge of Prunus americana thicket, with Arctium minus and Cynoglossum officinale. At least three plants here. Introduced to Colorado; escaping from cultivation into canyons and along streams.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Helianthus pumilus Nutt.  Little Sunflower.

Apex Park - Northern Parcel, Jefferson County, Colorado. Along the northern border of the northwest corner, 250 m. from the northwest corner, and 4.37 km. south of the GNIS location of Golden. 39.7254°N, 105.2191°W. WGS 1984 Elev. 1867 m. Shortgrass prairie with Artemisia frigida, A. ludoviciana, Heterotheca villosa, Opuntia polyacantha, Eriogonum umbellatum, Tradescantia occidentalis, and Bromus tectorum.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Opuntia polyacantha Haw.  Plains Pricklypear.

Apex Park - Northern Parcel, Jefferson County, Colorado. Along the northern border of the northeast corner, 260 m. from the northeast corner, and 4.37 km. south of the GNIS location of Golden. 39.7254°N, 105.2192°W. WGS 1984 Elev. 1862 m. Edge of Prunus americana and Rhus trilobata thicket, south-facing alluvial ridge with boulders to 50 cm.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes.  Western Marbleseed.

Apex Park - Northern Parcel, Jefferson County, Colorado. Near bottom of unnamed gulch, along the border with Stonebridge HOA, 256 m. west of the northeast corner, 4.37 km. south of the GNIS location of Golden. 39.7254°N, 105.2192°W. WGS 1984 Elev. 1862 m. In a thicket of Prunus americana and Rhus trilobata

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Apex Park - Northern Parcel, Jefferson County, Colorado. Near the north border with Stonebridge HOA, 220 m. west southwest from the corner, 4.47 km. south of the GNIS location of Golden. 39.7248°N, 105.2186°W. WGS 1984 Elev. 1867 M. Across the top of a small alluvial ridge, also here: Artemisia dracunculus, Helianthus pumilus, Xanthisma spinulosum, Alyssum simplex, Bromus tectorum, and Hesperostipa comata.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Crepis occidentalis Nutt.  Largeflower Hawksbeard.

City of Golden Parcel 40-102-01-032, Jefferson County, Colorado. Small (1.7 ac) parcel deeded to the city as part of the Tripp Ranch development, sandwiched between Jefferson County Open Space, Stonebridge HOA open space, and private residences, accessed from Crawford St., 4.41 km. south of the GNIS location of Golden. 39.7253°N, 105.2159°W. WGS 1984 Elev. 1856 m. Subspecies costata (A. Gray) Babcock & Stebbins, if infraspecific names are to be applied.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 153 m. east southeast of the mine portal, 1.36 km. west northwest of the GNIS location of Idaho Springs. 39.7473°N, 105.5241°W. WGS 1984 Elev. 2392 m. Southeast facing slope, with Juniperus scoparia and Cercocarpus montanus. Leaves collected for DNA analysis. Approximate topotype.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 140 m. east of the mine portal, 1.37 km. west northwest of the GNIS location of Idaho Springs. 39.7475°N, 105.5241°W. WGS 1984 Elev. 2402 m. With Juniperus scoparia and Cercocarpus montanus. Basal leaves removed for DNA analysis. Approximate topotype.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 138 m. east of the mine portal, 1.37 km. west northwest of the GNIS location of Idaho Springs. 39.7475°N, 105.5241°W. WGS 1984 Elev. 2416 m. East-facing, moderately steep slope, with Juniperus scoparia and Cercocarpus montanus. Seven basal leaves removed for DNA analysis. The plants are all small here, perhaps because of the very dry April.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 134 m. east of the mine portal, 1.38 km. west northwest of the GNIS location of Idaho Springs. 39.7475°N, 105.5242°W. WGS 1984 Elev. 2416 m. East-facing, moderately steep slope, with Juniperus scoparia and Cercocarpus montanus. Eight basal leaves removed for DNA analysis.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Packera fendleri (A. Gray) W.A. Weber & Á. Löve.  Fendler’s Ragwort.

Edgar Mine, Clear Creek County, Colorado. 116 m. east southeast of the mine portal, 1.39 km. west northwest of the GNIS location of Idaho Springs. 39.7474°N, 105.5244°W. WGS 1984 Elev. 2422 m. South-facing, open rocky slope, with Juniperus scoparia and Cercocarpus montanus. Collected while collecting approximate topotypes of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987).

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Scutellaria brittonii Porter.  Britton's Skullcap.

Edgar Mine, Clear Creek County, Colorado. 174 m. south of the mine portal, 1.47 km. west northwest of the GNIS location of Idaho Springs. 39.7465°N, 105.5257°W. WGS 1984 Elev. 2417 m. South-facing, open rocky slope, with Juniperus scoparia and Cercocarpus montanus. Collected while collecting approximate topotypes of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987).

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Penstemon virens Pennell ex Rydb.  Front Range Beardtongue.

Edgar Mine, Clear Creek County, Colorado. 200 m. south of the mine portal, 1.48 km. west northwest of the GNIS location of Idaho Springs. 39.7463°N, 105.5259°W. WGS 1984 Elev. 2419 m. South-facing, open rocky slope, with Pinus ponderosa and Cercocarpus montanus. Collected while collecting approximate topotypes of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987).

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 155 m. southwest of the portal, 1.58 km. west northwest of the GNIS location of Idaho Springs 39.747°N, 105.5265°W. WGS 1984 Elev. 2444 m. Single plant in a clump of Carex inops var. heliophila at the base of a Cercocarpus montanus. Approximate topotype of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987). Eight basal leaves were removed and delivered to KHD for DNA analysis.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 187 m. west northwest of the portal, 1.69 km. west northwest of the GNIS location of Idaho Springs 39.748°N, 105.527°W. WGS 1984 Elev. 2450 m. Basal leaves not withered, hairs simple, flowers light yellow. In the bank of a road below Ponderosa pines. Collected while collecting approximate topotypes of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987).

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 141 m. northwest of the primary portal, 1.65 km. west northwest of the GNIS location of Idaho Springs 39.748°N, 105.5266°W. WGS 1984 Elev. 2444 m. Growing on a dirt mining road berm. Approximate topotype of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987). Eight basal leaves removed and distributed to KHD for DNA analysis.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Edgar Mine, Clear Creek County, Colorado. 61 m. north of the main portal of the Edgar Mine, 1.54 km. northwest of the GNIS location of Idaho Springs. 39.7481°N, 105.5254°W. WGS 1984 Elev. 2430 m. Three caudices of (maybe) one plant. Growing in fractures of rocks in a road cut. No other taxa in this cut. Approximate topotype of Physaria vitulifera (P. A. Rydberg, s.n., 26 Aug 1895, NY185631, NY185632, RM1987). Eight basal leaves removed and distributed to KHD for DNA analysis.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. On an abandoned terrace of Coal Creek, approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road, then 440 m. east on an high pressure gas line service road to Coal Creek. 39.8833°N, 105.2592°W. WGS 1984 Elev. 1933 m. Terrace on southeast side of Coal Creek with Prunus virginiana and Salix exigua. Also collected nearby: Hesperis matronalis and Vitis riparia. Collected while searching the banks of Coal Creek for Humulus lupulus “Wild Hops.”

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Vitis riparia Michx.  Riverbank Grape.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. On a terrace of Coal Creek, approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road, then 440 m. east on an high pressure gas line service road to Coal Creek. 39.8833°N, 105.2597°W. WGS 1984 Elev. 1930 m. In flower. Sprawling on the ground and growing on Rhus trilobata under Populus angustifolia.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Hesperis matronalis L.  Dame's Rocket.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road to a high pressure gas line service road, then 356 m.southeast to a terrace on the right bank of Coal Creek. 39.8828°N, 105.2599°W. WGS 1984 Elev. 1934 m. Growing in a thicket of Prunus virginiana and Crataegus succulenta. Colorado Noxious Weed List B.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road to a high pressure gas line service road, about 215 m. east on the pipeline road. 39.8842°N, 105.2605°W. WGS 1984 Elev. 1939 m. Caulescent, 23-24 cm., hairs dolibriform, leaflets #17, 19 mm., terminal lflt jointed, calyx tube 5 mm., flowers 17 mm. Dry terrace above Coal Creek, with Koeleria macrantha.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Knautia macedonica Griesb.  Macedonian scabious.

Delong Park, Jefferson County, Colorado. In the unreconstructed portion of the park, below the houses on Lookout View Court, 1.81 km. southeast of the GNIS location of Golden. 39.7481°N, 105.2081°W. WGS 1984 Elev. 1764 m. Flowers deep red. Probably a garden escapee, now naturalized.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Amorpha fruticosa L.  False Indigo.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Abandoned channel of Coal Creek, approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road to a high pressure gas line service road, then about 520 m. east. 39.8846°N, 105.2583°W. WGS 1984 Elev. 1922 m. Shrub, 2 m. tall. with Crataegus succulenta and Populus angustifolia.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Populus angustifolia E. James.  Narrowleaf Cottonwood.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Bar of abandoned channel of Coal Creek, approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road to a high pressure gas line service road, then about 520 m. east. 39.8845°N, 105.2583°W. WGS 1984 Elev. 1922 m. With Amorpha fruticosa and Crataegus succulenta

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Papaver orientale L.  Oriental Poppy.

Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. Bar of abandoned channel of Coal Creek, approximately 1.6 mi. west on CO Highway 72 from CO Highway 93 to Plainview Road, 0.8 mi. generally north on Plainview Road to a high pressure gas line service road, then about 500 m. east northeast. 39.8851°N, 105.2579°W. WGS 1984 Elev. 1923 m. Approx. 30 flowering stems, petals bright red with purple spot, stamens dark purple. Also collected in the lower channel: Apocynum ×floribundum, Amorpha fruticosa, Populus angustifolia, and Vitis riparia.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

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

Tin Cup Ridge, Jefferson County, Colorado. Lower east slope of the hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.33 km. south southeast of the GNIS location of Golden. 39.7139°N, 105.2042°W. WGS 1984 Elev. 1855 m. Mixed grasses and forbs with: Rhus trilobata, Artemisia ludoviciana, Heterotheca villosa, Amelanchier alnifolia, and Bromus japonicus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Cercocarpus montanus Raf.  Alder-Leaf Mountain Mahogany.

Tin Cup Ridge, Jefferson County, Colorado. On the east side, mid-slope, of the hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.52 km. south southeast of the GNIS location of Golden. 39.7125°N, 105.2041°W. WGS 1984 Elev. 1904 m. Common shrub, to 2 m., on open, rocky slopes. Past-flowering, with developing fruit. Also here: Rhus trilobata, Artemisia ludoviciana, Ericameria nauseosa var. graveolens, and Heterotheca villosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Rumex crispus L.  Curley Dock.

Tin Cup Ridge, Jefferson County, Colorado. On the east side, steep mid-slope, of the hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.55 km. south southeast of the GNIS location of Golden. 39.7123°N, 105.204°W. WGS 1984 Elev. 1910 m. Most basal leaves withered. Growing with: Rhus trilobata, Ericameria nauseosa var. graveolens, and Cercocarpus montanus

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.  Saskatoon Serviceberry.

Tin Cup Ridge, Jefferson County, Colorado. Top of steep slope, east side of ridge, hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.99 km. south southeast of the GNIS location of Golden. 39.7094°N, 105.2029°W. WGS 1984 Elev. 1948 m. Small shrubs to 1 m., forming fruit. With Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Aristida purpurea Nutt. var. longiseta (Steud.) Vasey.  Purple Threeawn.

Tin Cup Ridge, Jefferson County, Colorado. Top of ridge of a hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.97 km. south southeast of the GNIS location of Golden. 39.7094°N, 105.2029°W. WGS 1984 Elev. 1949 m. Long awns. In a small depression that may hold water at least part of the year, with Plantago patagonica. Collections of this grass in Golden s.l. are commonly var. longiseta.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Plantago patagonica Jacq.  Woolly Plantain.

Tin Cup Ridge, Jefferson County, Colorado. Top of ridge of a hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.97 km. south southeast of the GNIS location of Golden. 39.7094°N, 105.2029°W. WGS 1984 Elev. 1949 m. In a small depression that may hold water at least part of the year, with Aristida purpurea var. longiseta. Also collected in the rocks nearby, Delphinium nuttallianum, Amelanchier alnifolia, and Rubus deliciosus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Viola sp., cf. V. canadensis L.  Canadian White Violet.

Lippincott Ranch, Jefferson County, Colorado. About mid-way between Bull Gulch and the county boundary, 1.74 km. north northwest of the main gate, 23.4 km. north northwest of Golden 39.9108°N, 105.2783°W. WGS 1984 Elev. 2035 m. Edge of a dry watercourse, in deep ponderosa pine forest duff. Also collected here: Symphoricarpos rotundifolius and Lactuca serriola.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Lactuca serriola L.  Prickly Lettuce.

Lippincott Ranch, Jefferson County, Colorado. About mid-way between Bull Gulch and the county boundary, 1.74 km. north northwest of the main gate, 23.4 km. north northwest of Golden 39.9107°N, 105.2782°W. WGS 1984 Elev. 2034 m. Stem prickly. Leaves, entire, margins and mid-rib prickly. Flowers, yellow. Edge of a dry watercourse, in deep ponderosa pine forest duff. Also collected here: Symphoricarpos rotundifolius and Viola sp., cf. V. canadensis.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Symphoricarpos rotundifolius A. Gray.  Roundleaf Snowberry.

Lippincott Ranch, Jefferson County, Colorado. About mid-way between Bull Gulch and the county boundary, 1.74 km. north northwest of the main gate, 23.4 km. north northwest of Golden. 39.9108°N, 105.2783°W. WGS 1984 Elev. 2036 m. Developing fruit, few in number, mostly terminal, though some in axils. Near a dry watercourse in open ponderosa pine forest.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Clematis c.f. C. hirsutissima Pursh.  Hairy Clematis, Sugar Bowls.

Lippincott Ranch, Jefferson County, Colorado. Northern part of the ranch in Boulder County, 2.3 km. north northwest of the main gate, 23.9 km. north northwest of the GNIS location of Golden. 39.9141°N, 105.2803°W. WS 1984 Elev. 2061 m. Finely divided leaf, 2-3 times pinnately compound. Moderate northeast slope in ponderosa pine woodland, also seen nearby Corallorhiza maculata and Jamesia americana.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

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

Lippincott Ranch (North), Boulder County, Colorado. In boulders on ridge above south fork of Spring Brook, 2.75 km. south of Eldorado Springs, 23.9 km. north northwest of the GNIS location of Golden 39.9142°N, 105.2806°W. WGS 1984 Elev. 2062 m. Also collected nearby: Heuchera bracteata, Clematis hirsutissima, and Urtica dioica.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Elymus glaucus Buckley ssp. glaucus.  Blue Wild Rye.

Lippincott Ranch (North), Boulder County, Colorado. Northern portion of the ranch in Boulder County, base of boulders above south fork of Spring Creek, 2.33 km. north northwest of the main gate, 2.67 km. south southwest of Eldorado Springs. 39.9144°N, 105.2809°W. WGS 1984 Elev. 2060 m. Ponderosa pine forest, also collected here Jamesia americana, Urtica dioica, and Heuchera bracteata.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Dryopteris filix-mas (L.) Schott.  Male Fern.

Lippincott Ranch (North), Boulder County, Colorado. Northern portion of the ranch in Boulder County, very close to the western parcel boundary, base of boulders above south fork of Spring Creek, 2.33 km. north northwest of the main gate, 2.67 km. south southwest of the GNIS location of Eldorado Springs. 39.9144°N, 105.2811°W. WGS 1984 Elev. 2060 m. Ponderosa pine forest, also collected here: Jamesia americana, Heuchera bracteata, Urtica dioica, and Elymus glaucus.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Dryopteris filix-mas (L.) Schott.  Male Fern.

Lippincott Ranch (North), Boulder County, Colorado. Northern portion of the ranch in Boulder County, very close to the western parcel boundary, base of boulders above south fork of Spring Creek, 2.33 km. north northwest of the main gate, 2.67 km. south southwest of the GNIS location of Eldorado Springs. 39.9144°N, 105.2811°W. WGS 1984 Elev. 2060 m. Ponderosa pine forest, also collected here: Jamesia americana, Heuchera bracteata, Urtica dioica, and Elymus glaucus.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Urtica dioica L. ssp. gracilis (Aiton) Seland.  Stinging Nettle.

Lippincott Ranch (North), Boulder County, Colorado. Northern portion of the ranch in Boulder County, very close to the western parcel boundary, in streambed of south fork of Spring Creek, 2.32 km. north northwest of the main gate, 2.68 km. south southwest of the GNIS location of Eldorado Springs. 39.9143°N, 105.2809°W. WGS 1984 Elev. 2066 m. Ponderosa pine forest, also collected nearby: dryopteris filix-mas, Jamesia americana, Heuchera bracteata, and Elymus glaucus.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Silene latifolia Poir.  Bladder Campion.

Lippincott Ranch (North), Boulder County, Colorado. Bank of south fork of Spring Brook, 2.35 km. north northwest of the main gate, 2.63 km. south southwest of the GNIS location of Eldorado Springs. 39.9146°N, 105.2807°W. WGS 1984 Elev. 2065 m. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Glyceria elata (Rydb.) M. E. Jones.  Fowl Manna Grass.

Lippincott Ranch (North), Boulder County, Colorado. In the streambed of the south fork of Spring Brook, 2.38 km. north northwest of the main gate, and 2.56 km. south southwest of the GNIS location of Eldorado Springs. 39.915°N, 105.2799°W. WGS 1984 Elev. 2052 m. Streambed shaded by Ponderosa pines, previously collected nearby: Corylus cornuta, Circaea alpina, and Parietaria pensylvanica. Prosartes trachycarpa also observed nearby.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Ranunculus macounii Britton.  Macoun's Buttercup.

Lippincott Ranch (North), Boulder County, Colorado. Rooted in water of the south fork of Spring Brook, 2.41 km. north northwest of the main gate, 2.55 km. south southwest of the GNIS location of Eldorado Springs. 39.9151°N, 105.2802°W. WGS 1984 Elev. 2050 m. Shade streambed under ponderosa pines, previously collected nearby: Corylus cornuta, Circaea alpina, Parietaria pensylvanica, and Glyceria elata. Prosartes trachycarpa also observed nearby.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Papaver orientale L.  Oriental Poppy.

Lippincott Ranch (North), Boulder County, Colorado. In deep shade beside north fork of Spring Brook, 2.49 km. north northwest of the main gate, 2.49 km. south southwest of the GNIS location of Eldorado Springs. 39.9156°N, 105.2805°W. WGS 1984 Elev. 2042 m. Sterile.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Mentha spicata L.  Spearmint.

Lippincott Ranch (North), Boulder County, Colorado. Middle of small swampy area on the north fork of Spring Brook, 2.52 km. north northwest of the main gate, 2.45 km. south southwest of the GNIS location of Eldorado Springs. 39.9159°N, 105.2803°W. WGS 1984 Elev. 2045 m. Very short petioles. Sterile, identified by “spearmint” smell and taste at time of collection. Deep forest shade, also seen or collected nearby: Ligusticum porteri, Papaver orientale, and Populus tremuloides.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Ligusticum porteri J.M. Coult. & Rose.  Porter's Licorice-Root.

Lippincott Ranch (North), Boulder County, Colorado. Along the north fork of Spring Brook, 2.53 km. north northwest of the main gate, 2.42 km. south southwest of the GNIS location of Eldorado Springs. 39.916°N, 105.28°W. WGS 1984 Elev. 2037 m. Sunny spot, more plants in vegetative state in shade.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Antennaria neglecta Greene.  Field Pussy-Toes.

Lippincott Ranch (North), Boulder County, Colorado. In shade along the north fork of Spring Brook, 2.56 km. north northwest of the main gate, 2.36 km. south southwest of the GNIS location of Eldorado Springs. 39.9164°N, 105.2793°W. WGS 1984 Elev. 2023 m. Leaves adaxial glabrous, abaxial tomentose. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

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

Lippincott Ranch (North), Boulder County, Colorado. Left bank of the north fork of Spring Brook, 2.59 km. north northwest of the main gate, 2.31 km. south southwest of the GNIS location of Eldorado Springs. 39.9167°N, 105.2791°W. WGS 1984 Elev. 2019 m. Sunny spot among ponderosa pines above the creek, also collected or seen nearby: Humulus lupulus, Rumex acetosella, Castilleja rhexifolia, and Smilax lasioneuron. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Rosa eglanteria L.  Sweetbriar Rose.

Lippincott Ranch (North), Boulder County, Colorado. Right bank of the north fork of Spring Brook, 2.56 km. north northwest of the main gate, 2.33 km. south southwest of the GNIS location of Eldorado Springs. 39.9165°N, 105.2785°W. WGS 1984 Elev. 2011 m. Leaves abaxial dense glandular-stipitate. Open ponderosa pine forest. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Schedonorus arundinaceus (Schreb.) Dumort.  Tall Fescue.

Lippincott Ranch (North), Boulder County, Colorado. South fork of Spring Brook, 2.36 km. north northwest of the main gate, 2.51 km. south southwest of the GNIS location of Eldorado Springs. 39.9152°N, 105.2779°W. WGS 1984 Elev. 2009 m. Edge of ponderosa pine woodland, just above the creek. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Galium boreale L.  Bedstraw.

Lippincott Ranch (North), Boulder County, Colorado. South side of south fork of Spring Brook, 2.33 km. north northwest of the main gate, 2.57 km. south southwest of the GNIS location of Eldorado Springs. 39.9149°N, 105.2786°W. WGS 1984 Elev. 2025 m. Perennial. Amid grasses and forbs under ponderosa pine canopy. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

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

Lippincott Ranch, Jefferson County, Colorado. In the saddle between Spring Brook and Bull Gulch drainages, very close to the Boulder/Jefferson County boundary, 2.11 km. north northwest of the main gate, 2.78 km. south southwest of the GNIS location of Eldorado Springs. 39.9134°N, 105.2783°W. WS 1984 Elev. 2051 m. Dried out, but still trying to bloom. Open ponderosa pine woodland. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Potentilla hippiana × pulcherrima.  Hybrid Potentilla.

Lippincott Ranch, Jefferson County, Colorado. In the saddle between Spring Brook and Bull Gulch drainages, very close to the Boulder/Jefferson County boundary, 2.08 km. north northwest of the main gate, 2.82 km. south southwest of the GNIS location of Eldorado Springs. 39.9131°N, 105.2783°W. WGS 1984 Elev. 2057 m. In grasses around scattered ponderosa pines. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Bromus sterilis L.  Poverty Brome.

Lippincott Ranch, Jefferson County, Colorado. About 150 m. north of Bull Gulch, 1.49 km. north northwest of the main gate, 3.38 km. south of the GNIS location of Eldorado Springs. 39.9092°N, 105.2774°W. WGS 1984 Elev. 2010 m. Moderate south-facing slope in open ponderosa pine woodland. Other grasses collected nearby: Bromus briziformis, B. lanatipes, and Danthonia spicata. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Elymus repens (L.) Gould.  Quack Grass.

Golden, Jefferson County, Colorado. Private garden on Garden Street, in well of tree, and other slopes, 1.06 km. north of the GNIS location of Golden. 39.7648°N, 105.2234°W. WGS 1984 Elev. 1759 m. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Bromus inermis Leyss.  Smooth Brome.

Tucker Gulch (lower), Jefferson County, Colorado. North bank of Tucker Gulch, the stream that drains Golden Gate Canyon, just west of North Ford Street, 2.55km. north northwest of the GNIS location of Golden. 39.7712°N, 105.2317°W. WGS 1984 Elev. 1796 m. Streamside with cottonwoods (Populus deltoides), box elders (Acer negundo) and chokecherries (Prunus virginiana). Valuable agricultural grass that is invasive of native grasslands.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Veronica anagallis-aquatica L.  Water Speedwell.

Tucker Gulch (lower), Jefferson County, Colorado. Bed of Tucker Gulch, the stream that drains Golden Gate Canyon, 75 m. west of North Ford Street, 2.57 km. north northwest of the GNIS location of Golden. 39.7713°N, 105.2319°W. WGS 1984 Elev. 1797 m. Flowing water of gulch lined by cottonwoods (Populus deltoides), box elders (Acer negundo) and chokecherries (Prunus virginiana). Native to temperate Eurasia to tropical mountains; widespread non-native in North America.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Prunus virginiana L.  Chokecherry.

Tucker Gulch (lower), Jefferson County, Colorado. North bank of Tucker Gulch, the stream draining Golden Gate Canyon, above the stream, 130 m. along gulch generally west of North Ford Street, 2.61 km. north northwest of the GNIS location of Golden. 39.7714°N, 105.2324°W. WGS 1984 Elev. 1801 m. Dark red leaves, fruit. Common native shrub or small tree thriving in urban habitat.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Lycium chinense Mill.  Chinese Desert-Thorn.
    (Determination tentative.)

Tucker Gulch (lower), Jefferson County, Colorado. North boundary of City of Golden parcel, sprawling down slope with yard waste from adjacent privately-owned parcel, about 140 m. west northwest of North Ford Street. 2.64 km. northwest of the GNIS location of Golden. 39.7716°N, 105.2324°W. WGS 1984 Elev. 1804 m. One thorn seen on stem, leaves alternate, entire, petals 5 fused at base, floral tube < lobes, ovary position uncertain, stamens 5, stigma entire. Weedy slope with Bromus inermis, Euphorbia esula, Ulmus pumila, etm.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Schoenoplectus tabernaemontani (C.C.Gmel.) Palla.  Softstem Bulrush.

Tucker Gulch (lower), Jefferson County, Colorado. In the water of Tucker Gulch, the stream draining Golden Gate Canyon, between Joseph Circle and Colorado Highway 93, 2.92 km. northwest of the GNIS location of Golden. 39.7725°N, 105.2352°W. WGS 1984 Elev. 1810 m.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Nasturtium officinale W. T. Aiton.  Watercress.

Tucker Gulch (lower), Jefferson County, Colorado. In the water of Tucker Gulch, the stream draining Golden Gate Canyon, between Joseph Circle and Colorado Highway 93, 2.92 km. northwest of the GNIS location of Golden. 39.7725°N, 105.2352°W. WGS 1984 Elev. 1810 m. Urban flora, this location likely disturbed many times by road and other construction. Also collected here: Schoenoplectus tabernaemontani.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Erigeron eximius Greene.  Splendid Daisy, Sprucefir Fleabane.

Morrison Creek, Jefferson County, Colorado. Buffalo Creek Recreation Area, upper reaches of Morrison Creek, southwest of Little Scraggy Peak, 1.83 km. west northwest of the Kelsey Campground, and 5.79 km. southwest of the Little Scraggy Trailhead. 39.3089°N, 105.2825°W. WGS 1984 Elev. 2563 m. Streamside in shady forest, also collected nearby Aconitum columbianum, Hackelia floribunda, and Geranium caespitosum.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

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

Morrison Creek, Jefferson County, Colorado. In Morrison Creek where crossed by the horse trail (possibly an old road), 1.93 km. west northwest of Kelsey Campground, 5.73 km. southwest of the Little Scraggy Trailhead. 39.3099°N, 105.2829°W. WGS 1984 Elev. 2547 m. Largest specimens about 1 m. tall, bluish-white flowers, nutlets with prickles connate at the base. Edges of forest along creek; also collected here: Erigeron eximius, Aconitum columbianum, and Geranium caespitosum.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Geranium richardsonii Fisch. & Trautv.  Richardson's Geranium.

Morrison Creek, Jefferson County, Colorado. Buffalo Creek Recreation Area, in a glade beside Morrison Creek where crossed by the horse trail (possibly an old road), 1.93 km. west northwest of Kelsey Campground, 5.73 km. southwest of the Little Scraggy Trailhead. 39.3098°N, 105.2829°W. WGS 1984 Elev. 2545 m. Edges of forest along creek; also collected here: Erigeron eximius, Aconitum columbianum, and Hackelia floribunda.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Aconitum columbianum Nutt.  Columbian Monkshood.

Morrison Creek, Jefferson County, Colorado. Buffalo Creek Recreation Area, rooted in the creek bed of Morrison Creek near where crossed by the horse trail (possibly an old road), 1.93 km. west northwest of Kelsey Campground, 5.73 km. southwest of the Little Scraggy Trailhead. 39.3099°N, 105.2829°W. WGS 1984 Elev. 2542 m. Numerous plants here, just starting to bloom. Edges of forest along creek; also collected here: Erigeron eximius, Geranium richardsonii, and Hackelia floribunda.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Anticlea elegans (Pursh) Rydb.  Mountain Death Camas.

Morrison Creek, Jefferson County, Colorado. On forest floor above Morrison Creek. 2.02 km. northwest of Kelsey Campground, 5.48 km. southwest of the Little Scraggy Trailhead. 39.3118°N, 105.2828°W. WGS 1984 Elev. 2534 m. 2 plants, mostly in bud.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Arenaria lanuginosa (Michx.) Rohrb. var. saxosa (A. Gray) Zarucchi, R. L. Hartman & Rabeler.  Spreading Sandwort.

Morrison Creek, Jefferson County, Colorado. Beside horse trail (former road?), on forest floor above Morrison Creek. 2.10 km. northwest of Kelsey Campground, 5.38 km. southwest of the Little Scraggy Trailhead. 39.3126°N, 105.2829°W. WGS 1984 Elev. 2524 m. Perennial, stems and pedicels with small downward-pointing hairs, petals, 5, white, Forest-shaded open, east-facing slope; also seen or collected here: Sedum lanceolatum and Anticlea elegans.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Anticlea elegans (Pursh) Rydb.  Mountain Death Camas.

Morrison Creek, Jefferson County, Colorado. On forest floor above Morrison Creek. 2.10 km. northwest of Kelsey Campground, 5.38 km. southwest of the Little Scraggy Trailhead. 39.3127°N, 105.2829°W. WGS 1984 Elev. 2524 m. Just starting to bloom.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Aquilegia coerulea E. James.  Colorado Blue Columbine.

Morrison Creek, Jefferson County, Colorado. In shaded forest beside Morrison Creek, 2.21 km. northwest of the Kelsey Campground, 5.22 km. southwest of the Little Scraggy Trailhead. 39.314°N, 105.2829°W. WGS 1984 Elev. 2500 m.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Castilleja integra A. Gray.  Wholeleaf Indian Paintbrush.

Morrison Creek, Jefferson County, Colorado. In a meadow on the right bank of Morrison Creek, 2.13 km. northwest of Kelsey Campground, and 5.26 km. southwest of the Little Scraggy Trailhead. 39.3135°N, 105.2825°W. WGS 1984 Elev. 2504 m. “Flowers” are a deeper red than usually seen. West-facing slope with a few aspens.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Gentianella amarella (L.) Börner ssp. acuta (Michx.) J. M. Gillett.  Autumn Dwarf Gentian.

Morrison Creek, Jefferson County, Colorado. Just north of a saddle, barely in the Morrison Creek watershed, at an old metal gate on the horse trail (possibly an old road), 1.75 km. west northwest of the Kelsey Campground, 5.91 km. southwest of the Little Scraggy Trailhead. 39.308°N, 105.2821°W. WGS 1984 Elev. 2865 m. Flowers magenta, fading to blue. Shaded open forest, i.e., little to no middlestory; also collected nearby: Erigeron eximius.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Packera fendleri (A. Gray) W.A. Weber & Á. Löve.  Fendler’s Ragwort.

Little Scraggy Peak, Jefferson County, Colorado. In a meadow at the saddle between Morrison Creek and Gunbarrel Creek, 1.52 km. west northwest of Kelsey Campground, and 1.24 km. southwest of Little Scraggy Peak. 39.3071°N, 105.2802°W. WGS 1984 Elev. 2574 m. Open meadow with a few ponderosa pines, also seen or collected here: Frasera speciosa, Lithospermum multiflorum, and Ceanothus fendleri.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Penstemon teucrioides Greene.  Germander Beardtongue.

Salt Creek, Park County, Colorado. Along the recently closed Forest Road 435A about 435 m. east of its junction with Forest Road 435 “Salt Creek Road,” 6.76 km, northwest of Antero Junction, 22.0 km. northeast of Buena Vista. 38.9591°N, 106.0047°W. WGS 1984 Elev. 2823 m. Flowers lavender, fading brown to blue. In an old road, 4 plants, more up the road. Also here: Astragalus crassicarpus. Also Coll. No. 2862, 377 m. northwest.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Bromus porteri (J.M. Coult.) Nash.  Nodding Brome.

Salt Creek, Park County, Colorado. Small valley just north of Salt Creek, near recently closed Forest Road 435A, 6.87 km. northwest of Antero Junction, 22.2 km. northeast of Buena Vista. 38.9603°N, 106.0041°W. WGS 1984 Elev. 2824 m. Inflorescence nodding, very soft hairy. Growing in and next to a small wash. Also here: Artemisia frigida.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Packera fendleri (A. Gray) W.A. Weber & Á. Löve.  Fendler’s Ragwort.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.85 km. northwest of Antero Junction, 22.3 km. northeast of Buena Vista. 38.9607°N, 106.0031°W. WGS 1984 Elev. 2829 m. Sparse vegetation on a sheetflow slope below a small hill with junipers and pines. Also collected here: Penstemon teucrioides and Bromus porteri.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Penstemon teucrioides Greene.  Germander Beardtongue.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, 6.86 km. northwest of Antero Junction, 22.4 km. northeast of Buena Vista. 38.961°N, 106.0024°W. WGS 1984 Elev. 2829 m. Flowers lavender, fading brown to blue. On a sparsely vegetated outwash slope. Also Coll. No. 2859, 377 m. southwest.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Platanthera huronensis (Nutt.) Lindl.  Huron Green Orchid.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.86 km. northwest of Antero Junction, 22.3 km. northeast of Buena Vista. 38.9606°N, 106.0014°W. WGS 1984 Elev. 2820 m. Bank of small spring-fed creek, at least 8 plants here, widely spaced along creek.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Potentilla pensylvanica L.  Prairie Cinquefoil.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.70 km. northwest of Antero Junction, 22.3 km. northeast of Buena Vista. 38.9601°N, 106.0017°W. WGS 1984 Elev. 2824 m. On open ground with Artemisia tridentata, A. frigida, Koeleria macrantha, and Nassella viridula.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

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

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.64 km. northwest of Antero Junction, 22.2 km. northeast of Buena Vista. 38.9595°N, 106.002°W. WGS 1984 Elev. 2821 m. Junction of two small washes, with various sagebrushes, Thermopsis rhombifolia, Allium cernuum, and Mentzelia sp.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Mentzelia speciosa Osterh.  Plains Blazing Star.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.64 km. northwest of Antero Junction, 22.2 km. northeast of Buena Vista. 38.9594°N, 106.002°W. WGS 1984 Elev. 2821 m. Petals yellow. Junction of two small washes, with various sagebrushes, Thermopsis rhombifolia, Allium cernuum, and Oenothera suffrutescens sp.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Campanula parryi A. Gray.  Parry's Bellflower.

Salt Creek, Park County, Colorado. Along the recently closed Forest Road 435A, about 180 m. east of it's junction with Forest Road 435 “Salt Creek Road,” 6.72 km. northwest of Antero Junction, 21.8 km. northeast of Buena Vista. 38.9583°N, 106.0055°W. WGS 1984 Elev. 2826 m. On the floor of an aspen glade just north of Salt Creek.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

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

Salt Creek, Park County, Colorado. Along the recently closed Forest Road 435A, about 150 m. east of it's junction with Forest Road 435 “Salt Creek Road,” 6.80 km. northwest of Antero Junction, 21.7 km. northeast of Buena Vista. 38.958°N, 106.0067°W. WGS 1984 Elev. 2828 m. Flowers closed.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

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

Salt Creek, Park County, Colorado. Along the recently closed Forest Road 435A, about 150 m. east of it's junction with Forest Road 435 “Salt Creek Road,” 6.80 km. northwest of Antero Junction, 21.7 km. northeast of Buena Vista. 38.958°N, 106.0067°W. WGS 1984 Elev. 2828 m. Fruit only, no flowers.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Androsace septentrionalis L.  Pygmyflower Rockjasmine.

Salt Creek, Park County, Colorado. In a small valley, north of Salt Creek and Pike-San Isabel National Forest Road 435 "Salt Creek Road," 3.2 mi. by road west of US Highway 285, 145 km. southwest of the GNIS location of Golden 38.9583°N, 106.0115°W. WGS 1984 Elev. 2851 m. Growing at the base of grasses and forbs.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Astragalus alpinus L.  Alpine Milkvetch.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 0.94 km. southeast of Lily Lake, 15.9 km. north northwest of Leadville. 39.3475°N, 106.3614°W. WGS 1984 Elev. 3167 m. Fruit dark-green, black hairy, pendant. Common on forest floor.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Lupinus caespitosus Nutt. var. utahensis (S. Watson) B. J. Cox.  Utah Lupine.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 0.94 km. southeast of Lily Lake, 15.9 km. north northwest of Leadville. 39.3475°N, 106.3613°W. WGS 1984 Elev. 3170 m. Common on forest floor.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Anticlea elegans (Pursh) Rydb.  Mountain Death Camas.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 810 m. southeast of Lily Lake, and 15.9 km. north northwest of Leadville. 39.3477°N, 106.3626°W. WGS 1984 Elev. 3168 m. Open forest.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Potentilla gracilis Hook. var. fastigiata (Nutt.) S. Watson.  Slender Cinquefoil.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 810 m. southeast of Lily Lake, and 15.9 km. north northwest of Leadville. 39.3477°N, 106.3626°W. WGS 1984 Elev. 3168 m. Lvs green on top, silver below. Lflts toothed fully to distal ¾. Non-glandular. Open forest.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Danthonia intermedia Vasey.  Timber Oatgrass.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 810 m. southeast of Lily Lake, and 15.9 km. north northwest of Leadville. 39.3477°N, 106.3626°W. WGS 1984 Elev. 3168 m. Lemmas glabrous on back, pilose on margins. Open forest, also collected here: Potentilla gracilis and Anticlea elegans.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

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

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 780 m. southwest of Lily Lake, and 16.0 km. north northwest of Leadville 39.3476°N, 106.363°W. WGS 1984 Elev. 3183 m. Edges of open forest, on slope above flood plain. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Agoseris aurantiaca (Hooker) Greene var. purpurea (A. Gray) Cronquist.   Orange-Flower Goat-Chicory.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 770 m. southeast of Lily Lake, 16.0 km. north northwest of Leadville. 39.3478°N, 106.363°W. WGS 1984 Elev. 3177 m. Phyllaries imbricate, 3 mm. wide, ciliate distally, purple-blotched; cypselae gradually tapered to beak. Open ground, nine plants seen, not showy, easy to overlook. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Eriogonum umbellatum Torrey, Ann. Lyceum Nat. Hist. New York. 2: 241. 1827. var. majus Hook.  Subalpine Sulphur-Flower Buckwheat.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 770 m. southeast of Lily Lake, 16.0 km. north northwest of Leadville. 39.3477°N, 106.363°W. WGS 1984 Elev. 3176 m. Light yellow flowers, just a little darker than cream-colored. Open ground on edges of forest. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Eremogone congesta (Nutt.) Ikonn. var. congesta.  Ball-Head Matted Sandwort.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 740 m. southeast of Lily Lake, 16.0 km. north northwest of Leadville. 39.3473°N, 106.3638°W. WGS 1984 Elev. 3176 m. More delicate than some. Nearly bare soil on bench above creek. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Arenaria lanuginosa (Michx.) Rohrb. var. saxosa (A. Gray) Zarucchi, R. L. Hartman & Rabeler.  Spreading Sandwort.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 740 m. southeast of Lily Lake, 16.0 km. north northwest of Leadville. 39.3473°N, 106.3638°W. WGS 1984 Elev. 3176 m. Very few in shade. Bare soil with a few trees on bench above the flood plain of the creek. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Shepherdia canadensis (L.) Nutt.  Russet Buffalo-Berry.

West Tennessee Creek, Lake County, Colorado. Along an old, closed forest road on the north side of West Tennessee Creek, 740 m. southeast of Lily Lake, 15.9 km. north northwest of Leadville. 39.3465°N, 106.3651°W. WGS 1984 Elev. 3179 m. In bud, flowers not open yet. Low shrub under trees of open forest. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Pedicularis groenlandica Retz.  Elephanthead Lousewort.

West Tennessee Creek, Lake County, Colorado. At the end of an old, closed forest road on the north side of West Tennessee Creek, 720 m. south of Lily Lake, 16.1 km. north northwest of Leadville. 39.3458°N, 106.3685°W. WGS 1984 Elev. 3198 m. Marshy area under forest trees. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Bistorta vivipara (L.) Delarbre.  Alpine Bistort.

West Tennessee Creek, Lake County, Colorado. At the end of an old, closed forest road on the north side of West Tennessee Creek, 720 m. south of Lily Lake, 16.1 km. north northwest of Leadville. 39.3458°N, 106.3685°W. WGS 1984 Elev. 3198 m. Marshy place under forest trees., with Pedicularis groenlandica. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Geum triflorum Pursh.  Old Man's Whiskers.

West Tennessee Creek, Lake County, Colorado. On a former oxbow of West Tennessee Creek, 830 m. southeast of Lily Lake, 15.9 km. north northwest of Loeadville. 39.3464°N, 106.3639°W. WGS 1984 Elev. 3171 m. Open area, also collected here; Penstemon procerus, Caltha leptosepala, and Rhodiola rhodantha. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Penstemon procerus Douglas ex Graham var. procerus.  Pincushion Beardtongue.

West Tennessee Creek, Lake County, Colorado. On a former oxbow of West Tennessee Creek, 830 m. southeast of Lily Lake, 15.9 km. north northwest of Loeadville. 39.3464°N, 106.3639°W. WGS 1984 Elev. 3171 m. Open area, also collected here; Geum triflorum, Caltha leptosepala, and Rhodiola rhodantha. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Artemisia borealis Pall. Ssp. borealis.  Boreal Wormwood.

(Syn: A. campestris L. var. purshii (Besser ex Hook.) Cronquist, Oligosporus groenlandicus (Hornemann) Á. Löve & D. Löve)

West Tennessee Creek, Lake County, Colorado. Edge of forest on west-facing slope above West Tennessee Creek, 870 m. southeast of Lily Lake, 15.9 km. north northwest of Leadville. 39.3471°N, 106.3625°W. WGS 1984 Elev. 3166 m. Dry gravelly slope under a pine. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Pyrola chlorantha Sw.  Green-Flowered Wintergreen.

North Fork West Tennessee Creek, Lake County, Colorado. Between West Tennessee Creek and its North Fork, near the intersection of a closed forest road and the Colorado Trail, 1.12 km. southeast of Lily Lake, 15.7 km. north northwest of Leadville. 39.3465°N, 106.3603°W. WGS 1984 Elev. 3206 m. Shaded forest with little to no understory. Distances measured from GNIS point features.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Penstemon whippleanus A. Gray.  Whipples Penstemon.

Brumley, Lake County, Colorado. Subalpine forest on a bank between the access road to the Sno-Tel station and the highway, about 11 road miles generally west on Colorado Highway 82 from the town of Twin Lakes, 175 km. southwest of Golden. 39.089°N, 106.5419°W. WGS 1984 Elev. 3232 m. Brumley was a stage stop on the route across Independence Pass.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Mertensia ciliata (Torr.) G. Don.  Tall Fringed Bluebells.

Brumley, Lake County, Colorado. On the bank of Lake Creek, beside the access road to the Sno-Tel station, about 11 road miles generally west on Colorado Highway 82 from the town of Twin Lakes, 175 km. southwest of Golden. 39.0892°N, 106.5421°W. WGS 1984 Elev. 3234 m. On the bank of the creek, also collected here: Gentiana parryi, Chamerion angustifolium, and Aconitum columbianum,

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Aconitum columbianum Nutt.  Columbian Monkshood.

Brumley, Lake County, Colorado. On the bank of Lake Creek, beside the access road to the Sno-Tel station, about 11 road miles generally west on Colorado Highway 82 from the town of Twin Lakes, 175 km. southwest of Golden. 39.0892°N, 106.5421°W. WGS 1984 Elev. 3234 m. On the bank of the creek, also collected here: Gentiana parryi, Chamerion angustifolium, and Mertensia ciliata.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Eriogonum umbellatum Torrey, Ann. Lyceum Nat. Hist. New York. 2: 241. 1827. var. majus Hook.  Subalpine Sulphur-Flower Buckwheat.

Brumley, Lake County, Colorado. About ½ mile north of Brumley on the east side of the road, about 12 road miles on Colorado Highway 82 generally west from Twin Lakes, Lake County, Colorado; 175 km. southwest of Golden. 39.0949°N, 106.542°W. WGS 1984 Elev. 3248 m. All infested with aphids tended by biting (!) black ants. Treeless slope (avalanche chute?) above the highway.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Aquilegia coerulea E. James.  Colorado Blue Columbine.

Brumley, Lake County, Colorado. About ½ mile north of Brumley on the east side of the road, about 12 road miles on Colorado Highway 82 generally west from Twin Lakes, Lake County, Colorado; 175 km. southwest of Golden. 39.0953°N, 106.5419°W. WGS 1984 Elev. 3262 m. About 60 m. above the highway on hummocky treeless slope that may be an avalanche chute.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Linum lewisii Pursh.  Prairie Blue Flax.

Brumley, Lake County, Colorado. About ½ mile north of Brumley on the east side of the road, about 12 road miles on Colorado Highway 82 generally west from Twin Lakes, Lake County, Colorado; 175 km. southwest of Golden. 39.0953°N, 106.5419°W. WGS 1984 Elev. 3267 m. Styles > stamens for all flowers examined and collected. About 60 m. above the highway on hummocky treeless slope that may be an avalanche chute.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Erysimum capitatum (Hook.) Greene.  Sanddune Wallflower.

Brumley, Lake County, Colorado. About ½ mile north of Brumley on the east side of the road, about 12 road miles on Colorado Highway 82 generally west from Twin Lakes, Lake County, Colorado; 175 km. southwest of Golden. 39.0953°N, 106.5419°W. WGS 1984 Elev. 3267 m. About 60 m. above the highway on hummocky treeless slope that may be an avalanche chute.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Campanula rotundifolia L.  Harebell.

Brumley, Lake County, Colorado. About ½ mile north of Brumley on the east side of the highway, about 12 road miles on Colorado Highway 82 generally west from Twin Lakes, Lake County, Colorado; 175 km. southwest of Golden. 39.0953°N, 106.5411°W. WGS 1984 Elev. 3279 m. About 140 m. above the highway on hummocky slope (avalanche chute?) with a few small willows.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.