Area List, Kinney Run, Jefferson County, United States.

Eastern Mojave Vegetation

Detailed Area Plant List for Kinney Run, Jefferson County, United States.

Edited by Tom Schweich

This list is assembled from personal collections, herbarium vouchers, and published lists. For California, much of the data is provided by the participants of the Consortium of California Herbaria as indicated by a single dagger “†.” Their web site is at: (http://ucjeps.berkeley.edu/consortium/). For Colorado, much of the data is provided by the Southwest Environmental Information Network as indicated by a double dagger “‡,” which web site is found at (http://swbiodiversity.org). See their respective websites for copyright information and recommended citation formats.

For a complete list of Locations included in this Area List, see the Locations Included section, below.

For a check list, please see: Check List for Kinney Run, Jefferson County, United States.

Cupressaceae

Juniperus communis L. var. depressa Pursh. Common Juniper. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, at the north base of Eagle Ridge Tom Schweich 2002. 8/28/2020. . .

Juniperus virginiana L. Eastern Redcedar. CalPhotos. Jepson eFlora. SEINet Taxon.

Tall narrow shrub, to 2 m.; Leaves in 2s, scale-like, margin entire, tip acute, overlapping > ¼ length of next leaf, length of gland < distance to apex; Seed, #1, 4 mm. × 3 mm.

- Kinney Run, Tom Schweich 1627. 7/6/2018. .

Anacardiaceae

Rhus trilobata Nutt. Squawbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3176. 5/28/2023. . .

Rhus trilobata Nutt. var. trilobata. (Syn: Rhus aromatica Aiton var. trilobata (Nutt.) A. Gray ex S. Watson ) Skunkbush Sumac. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Variety trilobata if infraspecific names are to be applied. Slightly above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 3.2 km. south of the GNIS location of Golden Tom Schweich 2041. 2 Jun 2019. ( KHD71100^‡ OBI183249^‡ REGIS s.n. Error 14.6(b)-7c ) .

- Kinney Run, Tom Schweich 1639. 7/6/2018. .

Apiaceae

Harbouria trachypleura (A. Gray) J.M. Coult. & Rose. (Syn: Thaspium trachypleurum A. Gray ) Whiskbroom Parsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1847. 5/15/2020. . .

Lomatium orientale J.M. Coult. & Rose. Salt-and-Pepper. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 20 cm., woody taproot; Leaves, compound, pinnate, 75 mm. × 26 mm. wide, ultimate divisions, ≤3 mm., ≤1 mm. wide, villous, tips, obtuse, (with a very small white “spine”); Inflorescence, compound umbel; Involucel Bracts, glabrous; Flowers, white; Anthers, red; Ovary, glabrous, stylopodium, absent; Fruit, 5 mm. × 3.5 mm. wide, ovate, glabrous, dorsally compressed, lateral ribs winged (Described from Coll. No. 1837, 17 May 2018).

- Deadman Gulch, Slightly above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 50 m. northwest of Kinney Run Trail, 3.17 km. south of the GNIS location of Golden. Tom Schweich 2042.1 2 Jun 2019. ( KHD 71098^‡ ) . .

Musineon divaricatum (Pursh) Raf. Leafy Wildparsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Also here: Lomatium orientale, Helianthus pumilis, Mertensia lanceolata, Astragalus drummondii, Scutellaria brittonii, and Cercocarpus montanus. West-southwest-facing slope of Eagle Ridge, a locally named ridge of upturned Dakota Group between US Highway 6 and Eagleridge Drive, between Stonebridge entrance and Kinney Run, 3.75 km. south southeast of the GNIS location of Golden. Tom Schweich 2918. 9 May 2023. ( CDA56585^‡ CS202024^‡ OBI ) .

Apocynaceae

Apocynum ×floribundum Greene. Dogbane. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Deadman Gulch, Highly disturbed habitat between trails. Between the 6th Avenue Trail and the creek of Deadman Gulch, 2.24 km. (geodesic) south of GNIS location of Golden Tom Schweich 2990. 19 Jun 2023. ( Golden ) .

Asteraceae

Agoseris parviflora (Nutt.) D. Dietr. (Syn: A. glauca (Pursh) Raf. var. laciniata (D. C. Eaton) Smiley , Troximon parviflorum Nutt. , Troximon pubescens (Rydb.) A. Nels. ) Steppe Goat-Chicory. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 20 cm.; Leaves, basal, to 180 mm. × 6 mm. wide, not prickly, margins, generally straight (not wavy), 0- to 6-toothed, sparsely ciliate or hairy; Inflorescence, single heads on scape to 15 cm.; Phyllaries, in 2+ graduated series, 10-13-16 mm., generally green, mid-vein dark purple, margin scarious, outer phyllaries, mid-vein and margin ciliate; Ray flowers, corolla, 20-22 mm., yellow (drying more purple than pink), lobes 5; Disc flowers 0; Pappus, simple capillary bristles; Achene, surface smooth, beak unknown (immature). (Described from Coll. No. 1101, 3 May 2015)

- Eagle Ridge, Nearly flat soil along top of hogback, with Helianthus pumilis, Cercocarpus montanus, Penstemon virens, Alyssum simplex, Erodium cicutarium, and Bromus tectorum. Local name for a small hogback composed of vertically-upturned Cretaceous-age Dakota Group between Deadman Gulch and US Highway 6, about 3.5 km. south of the GNIS location of Golden. Tom Schweich 2926. 28 May 2023. ( Golden ) . .

Ambrosia psilostachya DC. Western Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., woody at base; Leaves opposite below, alternate above, 50 mm. × 22 mm., ovate, pinnately divided; Inflorescence indeterminate, appearing raceme-like, 2 kinds of flowers, pistillate heads many, distal, carpellate heads few, clustered in distal leafy axils; Phyllaries fused into a cup; Receptacle not chaffy; Pappus absent (Described from Coll. No. 1068, 8 Oct 2014).

- Kinney Run, Tom Schweich 1637. 7/6/2018. . .

Arctium minus Bernh. Lesser Burdock. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Also seen in several other places along Deadman Gulch. Colorado Noxious Weed List C. Along Deadman Gulch (Kinney Run), between US Highway 6 and Eagle Ridge Drive, on a bank of the creek, 3.24 km. south of the GNIS location of Golden. Tom Schweich 2425. 17 Aug 2020. ( CDA0053776^‡ COLO2433811^‡ CS KHD00073455^‡ ) . .

Carduus nutans L. (Syn: Carduus nutans L. ssp. macrolepis (Peterman) Kazmi ) Nodding Plumeless Thistle. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Kinney Run, West slope of the hogback on the east side of Kinney Run, between the Cambria Lime Kiln and Tripp Ranch, 3.22 km. south southeast of the GNIS location of Golden. Tom Schweich 1968. 6 Jul 2018. ( COLO02348563^‡ KHD00069210^‡ OBI170768^‡ UC ) . .

Cirsium arvense (L.) Scop. (Syn: Breea arvensis (L.) Lessing ) Canada Thistle. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Deadman Gulch, South side of gulch, growing in woody shrubs. Also collected here: Epilobium hirsutum, Solanum dulcamara, and Dactylis glomerata. Near the junction of Deadman Gulch and Kinney Run, 2.28 km. south of the GNIS location of Golden Tom Schweich 2407. 31 Jul 2020. ( COLO2433993^‡ OBI186046^‡ REGIS ) . .

Crepis occidentalis Nutt. (Syn: Psilochenia occidentalis (Nutt.) Nutt. ) Largeflower Hawksbeard. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, to 25 cm., taprooted; Stem, green, tomentose, glandular, no bristles; Leaves, basal and cauline, alternate, petiole 20 mm. + blade 56 mm. × 17 mm. wide, reduced distally, pinnately lobed nearly to mid-rib, segments deltoid, tomentose, glandular; Inflorescence, heads #3 per stem, showy, >leaves; Peduncles, 23 mm.; Involucre, 12 mm. × 12 mm. wide, cyindric, tomentose; Phyllaries, 2 graduated series, 3.5 mm. &tmes; 2 mm. wide, deltoid, 12.5 mm. × 3 mm. wide, lanceolate, ±flat, tomentose, gland-tipped black bristles evenly distributed; Receptacle, epaleate; Ray flowers (ligules), many, tube 6 mm. + blade 12.5 mm. × 2.4 mm. wide, yellow; Pappus, 9 mm. well-developed, bristles, ±equal, smooth; Fruit, 2 mm. × 1.3 mm. wide, brown, glabrous. (Described from Coll. No. 1894, 28 May 2018).

- Eagle Ridge, in bloom Tom Schweich 3036. 5/9/2023. .

- Eagle Ridge, Tract A, Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil. Subsp. costata if infraspecific names are to be applied. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 50 m. northwest of the Kinney Run Trail, 2.38 km. (geodesic) south of the GNIS location of Golden Tom Schweich 2978. 19 Jun 2023. ( Golden ) . .

Cyclachaena xanthiifolia (Nutt.) Fresen. (Syn: Iva xanthiifolia Nutt. ) Carelessweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Also seen around the edge of the pond and along the Kinney Run Trail nearly to Eagle Ridge Drive. The pond and dam were reconstructed in late 2016 so these would have established here since then. Along Deadman Gulch (Kinney Run), between US Highway 6 and Eagle Ridge Drive, collected at the edge of the concrete of the retention pond dam, 3.18 km. south of the GNIS location of Golden. Tom Schweich 2423. 17 Aug 2020. ( COLO2433910^‡ KHD00073442^‡ OBI186037^‡ ) . .

Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. graveolens (Nutt.) Reveal & Schuyler. Goldy-Locks. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1636. 7/6/2018. . .

Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird var. nauseosa. (Syn: Chrysothamnus plattensis Greene ) Rubber Rabbitbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 1980. 7/24/2020. With Rhus trilobata, Cercocarpus montanus, Pediomelum tenuiflorum, Linum lewisii, and dried-up grasses. See also Coll. No. 2440., same taxon and location, 11 days later. Low on the north and east slopes of “Eagle Ridge,” an informally named hogback between US Highway 6 and Deadman Gulch (Kinney Run), 3.26 km. south of the GNIS location of Golden. Tom Schweich 2421. 17 Aug 2020. ( KHD00073444^‡ ) See also Coll. No. 2421, same taxon and location, 11 days earlier. North slope of “Eagle Ridge,” an informally named hogback between US Highway 6 and Deadman Gulch (Kinney Run), just below the Cercocarpus montanus, 3.26 km. south of the GNIS location of Golden. Tom Schweich 2440. 28 Aug 2020. ( CAS COLO2433845^‡ OBI186034^‡ UCR297671^‡ ) .

- Kinney Run, with var. graveolens, Ambrosia psilostachya, and Rhus trilobata. Tom Schweich 1986. 7/31/2020. . .

Erigeron flagellaris A. Gray. Trailing Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 5-6 cm., with scapose inflorescence to 9 cm., spreading by leafy stoloniferous branches; Leaves, basal and cauline, entire, basal, linear-oblanceolate, 35 mm. × 2.5 mm., cauline, linear, 13 mm. × 1.5 mm.; Inflorescence, single heads on scape to 8 cm.; Receptacle epaleate; Phyllaries, 2+series, ±equal, 4 mm., hairy abaxially, ascending multicellular hairs with clear crosswalls, glandular between hairs; Flowers of 2 kinds; Pappus of bristles, 2 mm., + short scales, that of ray and disc flowers alike; Rays, #±80, corolla white, fading lilac, 8 mm. × 0.5 mm.; Disc flowers, corolla yellow, lobes triangular; Achene, short hairy. (Described from Coll. No. 1116, 28 May 2015).

- Kinney Run, Thin vegetation on sandstone. On the west limb of a small hogback, about 2/3 of the way up from Kinney Run to the crest of the hogback, 3.1 km. south of the GNIS location of Golden. Tom Schweich 1829. 16 May 2018. ( CAS COLO02347615^‡ CS UCR ^‡ ) . .

Erigeron pumilus Nutt. Shaggy Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills of the Front Range. Transferred from USGS Herbarium, Denver, CO (2005). Foothills of the Front Range, at junction of US 6 and road to Morrison. Hansford T. Shacklette 5889. 27 Jun 1959. ( COLO528406^‡ ) On mesa slope in foothills. Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5890. 27 Jun 1959. ( COLO528414^‡ ) . .

Gaillardia aristata Pursh. Blanketflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, alternate, entire to toothed; Inflorescence, single heads on peduncles 13-18 cm., flowers of 2 kinds; Phyllaries, 2+ series, 17 mm. × 2.7 mm. wide, lance-linear; Receptacle, epaleate, setae, to 10 mm.; Rays, sterile, corolla, 21 mm. × 10 mm. wide, yellow, deeply 3-lobed; Disk flowers, corolla, 7 mm., purple; Pappus of 6+ aristate scales, 4 mm., awn 2×> body. Described from Coll. No. 1205, 12 Jul 2015.

- Deadman Gulch, East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of “Kinney Run.” High plains between US Hwy 6 and Lookout Mountain, about 150 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1425. 15 Jun 2016. ( CS UCR278002^‡ ) . .

Grindelia squarrosa (Pursh) Dunal. Curlycup Gumweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Foothills shrubland, also collected here: Astragalus shortianus, Cynoglossum officinale, Lithospermum arvense, Scutellaria brittonii, and Toxicoscordion paniculatum. Near the junction of Deadman Gulch with Kinney Run, on a small hill that is a highly eroded hogback continued from the east side of Kinney Run, 2.37 km. south of the GNIS location of Golden. Tom Schweich 2410. 31 Jul 2020. ( CDA0053773^‡ COLO2433894^‡ OBI186043^‡ UCR ) . .

Gutierrezia sarothrae (Pursh) Britton & Rusby. (Syn: G. linearifolia Lag. ) Broom Snakeweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, tap-rooted, to 9 cm.; Leaves, alternate, linear, 20 mm. × 1 mm. mm. wide, dotted with embedded oil glands, very few short hairs; Peduncle, 0.5-1.5 mm.; Inflorescence, some flowers with strap-shaped corollas, flowers of two kinds in same heads, Involucre, 3.5 mm. × 2.5-3.0 mm. wide, obconic, not gummy; Phyllary, 2-3 unequal series, inner folded around ovary of ray flowers, dotted with embedded oil glands, tips appressed; Receptacle, epaleate; Rays, #5, yellow; Disk, #4; Pappus, a well-developed crown of scales on both ray and disk flowers; (Described from Coll. No. 144, 3 Oct 1997: keys easily to Gutierrezia sarothrae. However, inner phyllaries are folded around ovary of ray flowers, a character not mentioned in keys or description.)

- Kinney Run, Tom Schweich 1640. 7/6/2018. . .

Helianthus pumilus Nutt. Little Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, cauline, alternate, occasionally opposite, then bases conjoined, simple, petiole 7-10 mm. + blade 55-86 mm. × 22-30 mm. wide, lanceolate, flat (not folded), margin, entire to lightly toothed, adaxial, pustular strigose, hairs multicellular, crosswalls clear, abaxial, glandular and strigose; Inflorescence, heads single to few on leafy stems, peduncles to 8-10 cm., hairy, glandular; Involucre, 9 mm. × 16 mm. wide; Phyllaries in 2+ series, similar, 6-10 mm. × 2.0-3.5(4) mm. wide, greene erect, ovate, strigose abaxially, margins ciliate, tip acuminate, not as “stiff” or “tough” as those of Coll. No. 1199; Receptacle, slightly convex, paleate; Disk, 17 mm. wide; Palea, 9 mm., tip, glandular, hairy distally; Flowers, 2 kinds; Ray flowers, sterile, #10-12, corolla, 17-25 mm. × (4)6-9 mm. wide, yellow; Disk flowers, corolla, 4-6 mm., yellow, lobes, #5, 1 mm., yellow, anther appendages reddish-brown; Pappus of few long (2.5-4 mm.) aristate scales; Cypsela, 3.5 mm. × 1.4 mm. wide, quadrangular,not laterally compressed black. Described from Coll. No. 1210, 1426, and 1704.

- Deadman Gulch, Northeast-facing grassy slope. High plains between US Hwy 6 and Lookout Mountain, about 145 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1426. 15 Jun 2016. ( CS EIU OBI83310^‡ ) . .

Heterotheca villosa (Pursh) Shinners. (Syn: H. v. (Pursh) Shinners var. nana (A. Gray) Semple , H. v. (Pursh) Shinners var. villosa ) Hairy False Goldenaster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm.; Leaves, cauline alternate, entire, 1-veined, distal perpendicular to stems, hairs > glands; Heads solitary, with both ray and disk flowers; Phyllaries in 2+ series, unequal, to 7 mm.; Rays, 9 mm.; Pappus double, outer narrow scales ≤ 1 mm. (easier to see on mature fruit), inner bristles, 6.5 mm., white; Fruit, disk 3 mm., hairy.

- Kinney Run, Var. minor if infraspecific names are to be applied. West slope of the hogback on the east side of Kinney Run, between the Cambria Lime Kiln and Tripp Ranch, 3.20 km. south southeast of the GNIS location of Golden. Tom Schweich 1967. 6 Jul 2018. ( COLO02348571^‡ KHD00068682^‡ OBI UC ) . .

Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner. Many-Headed Fine-Leaved Wooly-White. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., ±tomentose throughout; Leaves, basal, petiole 35 mm. + blade 75-105 mm. × 30-50 mm. wide, oblanceolate in shape, base conspicuously tomentose, bipinnately dissected to filiform segments, ultimate leaf divisions (8)12-19 mm., cauline, similar, reduced above, #(4)5-8; Inflorescence, heads borne singly on peduncles, 22-45 mm.; Heads, (5)7-16 per stem; Involucre, 8 mm. × 15 mm. wide; Phyllaries, 1-2 series (vague what is a series and what not), 6-7 mm. × 2.5-4.0 mm. wide, inner > outer, green, tomentose, margins chartaceous, tips broad; Receptacle, epaleate, flat; Flowers, 1 kind; Disk flowers, corollas, 3.5 mm., yellow; Pappus, crown of scales, 0.8-1.2 mm.; Cypsela, 3-5 mm., hairy all over, more so on the angles. (Described from Coll. No. 1427, 15 June 2016, and Coll. No. 1504, 13 July 2016.)

- Deadman Gulch, East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of “Kinney Run.” High plains between US Hwy 6 and Lookout Mountain, about 145 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1427. 15 Jun 2016. ( KHD00063989^‡ UC UCR278000^‡ ) .

- Kinney Run, Tom Schweich 1631. 7/6/2018. . .

Packera fendleri (A. Gray) W.A. Weber & Á. Löve. (Syn: Senecio fendleri A. Gray ) Fendler’s Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Ratibida columnifera (Nutt.) Woot. & Standl. (Syn: Rudbeckia columnifera Nutt. ) Upright Prairie Coneflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm., tap-rooted; Leaves, cauline, to 11 cm. × 3 cm. wide, 1-pinnate, pinnae to 39 mm. × 4 mm. wide, some toothed; Inflorescence, single heads per stem, >> leaves; Involucre, 14 mm. diameter; Phyllaries, 1 series, lanceolate, hairy abaxially; Receptacle, cylindric, paleate; Rays, #5, 17 mm., × 13 mm. wide, elliptic-ovate, sterile, corolla yellow; Disk, cylindric, 20-45 mm. × 9-12 mm. wide; Palea, folded around but not enclosing disk flowers; Disk flowers, many, corolla greenish-yellow; Pappus, short crown of scales; Fruit, compressed, but maybe not strongly, ciliate adaxially(!). Described from Coll. No. 1198, 12 July 2015.

- Eagle Ridge, On mesa slope in foothills. Notes: Transferred from USGS Herbarium, Denver, CO (2005). Colorado, Jefferson, Foothills of the Front Range, Junction of US 6 and road to Morrison, about 1 mile east of Golden. Handsford T. Shacklette 5876. 27 Jun 1959. ( COLO00857987^‡ ) .

- Kinney Run, West slope of the hogback on the east side of Kinney Run, between the Cambria Lime Kiln and Tripp Ranch, 3.19 km. south southeast of the GNIS location of Golden. Tom Schweich 1966. 6 Jul 2018. ( COLO02348597^‡ KHD00068677^‡ OBI UC ) . .

Senecio integerrimus Nutt. Columbia Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3038. 5/9/2023. Tom Schweich 3173. 5/28/2023. . .

Solidago gigantea Aiton. Giant Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 60 cm. (growing on a steep stream bank); Stem, glabrous, becoming hairy in the inflorescence; Leaves, basal unknown, cauline, alternate, petiole, 5 mm. or subsessile, blade, 90 mm. × 15 mm. wide, distally reduced in size but abundant, lanceolate-elliptic, entire, ciliate with small curved hairs, distally widely-spaced serrate; Inflorescence, pyramidal, paniculate, ±secund; Peduncles, 3-5 mm.; Involucre, 3 mm. × 4 mm. wide, spheric(?), lightly glandular; Phyllaries, unequal, 2+ series, lower <rest of involucre, green to chartaceous, margins flat; Receptacle, very short scales(?), definitely not flat; Flowers, of 2 kinds; Rays, #11, tube 2 mm. + blade 1.5 mm. × 0.3 mm. wide, yellow, fertile; Disk flowers, #7 tube 2.8 mm. + lobes 0.9 mm., throat expanding gradually, yellow, open, bisexual; Pappus, bristles, 2.8 mm., equal; Stamens, not tailed; Style, 2-branched, ±brushlike appendages; Stigma, 0.5 mm., >style appendages (0.4 mm.); Fruit, 1 mm., hairy, beak-less (Described from Coll. No. 2422, 17 Aug 2020).

- Deadman Gulch, Inflorescence full of little crab spiders colored the same yellow as the corollas. In Deadman Gulch (Kinney Run) between US Highway 6 and Eagle Ridge Drive, on the edge of the perennial creek, around the retention pond, and further upstream along the creek, 3.17 km. south of the GNIS location of Golden. Tom Schweich 2422. 17 Aug 2020. ( COLO2434025^‡ KHD00073443^‡ OBI186036^‡ UCR ) . .

Solidago missouriensis Nutt. Missouri Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35-40 cm., generally glabrous throughout; Leaves, basal, unknown, cauline, alternate, petiole 10-45 cm. + blade 100 mm. × 21-22 mm. wide, reduced above, oblanceolate, margin, sparsely scabrous proximally, serrate distally, glabrous, prominently 3(5)-nerved; Inflorescence, crowded panicle; Pedicels, 1 mm.; Bracts, #2, 1.8 mm.; Involucre, 3.0-4.5 mm. × 3-5 mm. wide, obconic; Phyllaries, 2+ series, 2.2-3.5 mm. × 1 mm. wide, graduated, green, margin chartaceous, veins 1; Receptacle, epaleate, conic; Flowers, 2 kinds; Rays, #12, fertile, tube 2 mm. + blade 2.2 mm., yellow; Disk flower, #12, tube 2.8 mm. + lobes 0.7 mm. = 3.5 mm., yellow; Pappus, capillary bristles, 3.0 mm.; Cypsela, 0.4-0.6 mm., glabrous-sparsely hairy. Described from Coll. No. 1255, 26 Jul 2015, and Coll. No. 1519, 29 Jul 2016. Distinguished in part by its glabrous characters and presence of 3 prominent nerves on leaves. Jepson eFlora notes that S. missouriensis Nutt. Is misapplied to S. spectabilis (D. C. Eaton) A. Gray. FNANM states that, in the west, it can be similar to smaller plants of S. spectabilis (13 Sep 2014).

- Kinney Run, West slope of the hogback on the east side of Kinney Run, between the Cambria Lime Kiln and Tripp Ranch, 3.12 km. south southeast of the GNIS location of Golden. Tom Schweich 1969. 6 Jul 2018. ( COLO02348555^‡ KHD00068671^‡ OBI ) . .

Solidago nana Nutt. Baby Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., short white hairy throughout; Leaves, basal, withered (late in season), cauline, alternate, 95 mm. × 9-10 mm. wide (includes 15 mm. winged petiole? below) veins, 1 (others discontinuous), margin hairs similar to surface hairs, i.e., not ciliate, gradually reduced and sessile above; Inflorescence, heads numerous and small, involucre, 5.5 mm.; Phyllaries, 3-4 series, imbricate, graduated, 3-4 mm., veins 1; Receptacle, epaleate, (scales? to 0.5 mm.); Flowers of 2 kinds; Rays, few (3-4), fertile? (stigma visible but cypsela not as developed as those of disk flowers), corolla, 6 mm., yellow; Disk flowers, few (6-8), corolla, 4 mm., yellow; Pappus, capillary bristles; Cypsela, 1.5 mm., short hairy. Described from Coll. No. 1292, 9 Sep 2015.

- Eagle Ridge, Ponderosa pines and foothills shrubland, mostly Cercocarpus montanus. At the north end of “Eagle Ridge,” an informally named hogback between US Highway 6 and Eagle Ridge Drive, under the powerline tower, 3.36 km. south southeast of the GNIS location of Golden. Tom Schweich 2439. 28 Aug 2020. ( COLO2434090^‡ KHD00073462^‡ OBI183253^‡ UC ) . .

Sonchus asper (L.) Hill. Spiny Sowthistle. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Moist soil. Steep bank of Kinney Run, just north of Tripp Ranch, 2.61 km. south of the GNIS location Golden. Tom Schweich 2414. 31 Jul 2020. ( COLO2433944^‡ KHD00079305^‡ ) . .

Symphyotrichum lanceolatum (Willd.) G. L. Nesom ssp. hesperium (A. Gray) G. L. Nesom. (Syn: Aster lanceolatus Willd. ssp. hesperius (A. Gray) Semple & J. Chmielewski ) Western Lance-Leaved Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Riparian, also seen or collected nearby: Clematis ligusticifolia, Mirabilis nyctaginea, Crataegus succulenta, and Epilobium hirsutum. On the edge of the streambed in Deadman Gulch (Kinney Run), above US Highway 6 and just below Eagle Ridge Drive, 3.43 km. south of the GNIS location of Golden. Tom Schweich 2441. 28 Aug 2020. ( COLO2434108^‡ KHD00073469^‡ OBI186038^‡ ) . .

Taraxacum officinale F. H. Wigg. (Syn: T. laevigatum (Willd.) DC. ) Common Dandelion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Thirty meters east of and above the Kinney Run Trail, in thin soil near bare rock outcrops of a small hogback, 3.16 km. south of the GNIS location of Golden. Tom Schweich 1781. 12 Apr 2018. ( CDA0052338^‡ COLO02348035^‡ EIU029810^‡ ) . .

Townsendia grandiflora Nutt. Largeflower Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 15 cm.; Stem, villous; Leaves, opposite below, alternate above, 32-43 mm. × 3 mm. wide, narrowly oblanceolate, long ciliate at base; Inflorescence, heads borne singly; Involucre, 12 mm. × 25 mm. wide; Phyllaries, 5+ imbricate series, 13 mm. × 2.5-3.0 mm. wide, ±equal, ovate, margin ciliate, tip acuminate, green around prominent mid-vein, chartaceous margins; Receptacle, flat, epaleate, very short bristles; Flowers of two kinds; Rays, sterile, pappus, scales, 0.6 mm., corolla, 14-21 mm. × 1.2-1.5 mm. wide, white with purple center; Disk, 14-21 mm. wide, pappus, bristles, 4.0 mm., corolla, 4.5-5.0 mm., yellow; cypsela, 4 mm. × 1.3 mm., laterally compressed (Described from Coll. No. 1247, 24 Jul 2015, and Coll. No. 1404, 8 June 2016).

- Eagle Ridge, On mesa slope in foothills. Notes: Transferred from USGS Herbarium, Denver, CO (2005). United States, Colorado, Jefferson, Foothills of the Front Range, Junction of US 6 and road to Morrison, about 1 mile east of Golden. Handsford T. Shacklette 5887. 27 Jun 1959. ( COLO528556^‡ ) . .

Townsendia hookeri Beaman. Hooker's Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon.

Low growing perennial, from a woody caudex, acaulescent, to 2.5 cm.; Leaves, linear to narrowly oblanceolate, 30 mm. × 1.2 mm. wide, appressed hairy or strigose, eglandular; Peduncle, 3 mm., spreading hairy, eglandular; Heads, solitary, sessile (or apparently so), 12 mm. × disc (10)15-20 mm. wide; Phyllaries in 3+ overlapping series, 8 mm. × 1.2 mm. wide, all same length but inner phyllaries attached higher on receptacle giving impression of inner > outer, green, margin scarious and ciliate, outer hairy, tipped by a tuft of tangled cilia, inner, margins and tip ciliate, but not tangled; Receptacle epaleate, flat; Ray flowers, #25-30, fertile (pistillate), cypsela 3.3 mm., tuft of glandular hairs at base, pappus of 1 series white bristles, 4-5 mm., corolla, 10-11 mm., white to lavender; Disc flowers, bisexual, cypsela, 3.7 mm., glandular hairy, pappus 1 series white bristles, 4-6 mm., corolla, 3.8-4.5 mm., yellow, lobes dark. (Described from Coll. No. 1087, 25 Apr 2015, and Coll. No. 1304, 9 April 2016) The disc pappus sometimes being longer than the ray pappus could lead one to T. incana in Ackerfield (2015). Perhaps caulescence would be a better character, as used by Weber & Wittmann (2012).

- Deadman Gulch, The type locality of T. hookeri is Mount Vernon Canyon, about 5 km. south. Also collected here: Packera plattensis, Euphorbia brachycera, and Ipomopsis spicata. High plains at the base of the Rocky Mountain Front Range, linear northwest trending dry gravelly area, either in a trace of the Golden Fault or adjacent to it, 3.15 km. south of the GNIS location of Golden. Tom Schweich 2251. 27 Apr 2020. ( OBI186054^‡ ) . .

Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. (Syn: Machaeranthera pinnatifida (Hook.) Shinners ) Spiny Goldenweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Foothills grassland below shrubland, with Artemisia dracunculus, Ericameria nauseosa var. nauseosa, Helianthus pumilis, Bromus inermis, and a Poa. Northeast limb of “Eagle Ridge,” an informal name for a hogback between US Highway 6 and Eagle Ridge Drive, 3.66 km. south southeast of the GNIS location of Golden. Tom Schweich 2438. 28 Aug 2020. ( CAS COLO2434082^‡ UCR ) .

Berberidaceae

Berberis repens Lindl. (Syn: Mahonia repens (Lindl.) G. Don ) Creeping Barberry. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Thirty-eight meters east of and above the Kinney Run Trail, west side of the hogback in a small cove or old excavation that collects water, 3.12 km. south of the GNIS location of Golden. Tom Schweich 1782. 12 Apr 2018. ( COLO02348027^‡ EIU029811^‡ KHD00068925^‡ OBI162799^‡ ) .

Boraginaceae

Cynoglossum officinale L. Gypsyflower. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Plants in vegetative state only, determination tentative. Tom Schweich 1595. 4/12/2018. Tom Schweich 1628. 7/6/2018. Small colony, along with Lithospermum arvense and Euphorbia peplus. Colorado Noxious Weed List B. Southeast slope of a small hill between Kinney Run and Deadman Gulch, near the junction of those two small streams, 2.89 km. south of the GNIS location of Golden. Tom Schweich 1827.1 16 May 2018. ( CAS COLO02347508^‡ KHD00069160^‡ UC ) . .

Lappula occidentalis (S. Watson) Greene. (Syn: Lappula redowskii (Hornem.) Greene ) Flatspine Stickseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1845. 5/15/2020. . .

Lithospermum arvense L. (Syn: Buglossoides arvensis (L.) I. M. Johnst. ) Corn Gromwell. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 30 cm., hairs appressed with pustular bases; Stem, some branched distally; Leaves, basal and cauline, basal, petiole 5 mm. + blade 13 mm. × 3.5 mm. wide, slightly obovate, margin entire, hairs as above, withering, cauline, alternate, sessile, 19 mm. × 3.7 mm. wide, margin entire, hairs as above; Calyx, lobes, 5.2 mm. × 0.7 mm. wide, enlarged in fruit to 7 mm., hairs as above; Corolla, tube 4 mm. + throat 1 mm. + lobes 1.5 mm., blue to white, abaxial spreading hairy; Stamens, attached in tube; Style, 1.2 mm., Nutlets, #(1-2) 3 (4), 2.8 mm. × 2 mm. wide, green - tan, tuberculed (Described from Coll. No. 1783 and Coll. No. 1827).

- Kinney Run, Tom Schweich 1594. 4/12/2018. Distributed with 1827. 2.89 km. south of the GNIS location of Golden. Tom Schweich 1783. 12 Apr 2018. ( Golden ) The small plants are my collection no. 1783, made 12 April 2018, from the same population. Southeast slope of a small hill between Kinney Run and Deadman Gulch, near the junction of those two small streams, 2.89 km. south of the GNIS location of Golden. Tom Schweich 1827. 16 May 2018. ( CDA0052349^‡ COLO02348670^‡ JCOS s.n. KHD00069154^‡ UCR ^‡ ) Tom Schweich, with Bob Lagier 2089. 5/8/2021. . .

Mertensia lanceolata (Pursh) DC. Prairie Bluebells. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, with spreading-ascending branches to 20 cm.; Stem, glabrous; Leaves, basal and cauline, basal, petiole 55 mm. + blade 50 mm. × 12.5 mm. wide, lanceolate, distinct lateral veins, papillate adaxially, margin, entire, appressed ciliate; cauline, sessile, 40 mm. × 4 mm. wide, without distinct lateral veins, papillate to strigose (oriented toward apex) adaxially, margin, entire, appressed ciliate; Inflorescence, panicle; Calyx, not divided to base, tube 1.5 mm. + lobes 2-3 mm.; Corolla, tube 4.0-6.5 mm. + lobes 4.5-7.5 mm., free 2.0 mm., limb 5-10 mm., deciduous, blue, small tufts or a ring of hairs near (2.2 mm.) base of throat; Stamens, #5-6, inserted, attached just below (0.5 mm.) throat/fornices; Filaments, 2.0-3.5 mm., strap-shaped, filaments ≥ anthers; Anthers, 1.8-2.3 mm., versatile, yellow; Ovary, 0.7 mm. × 1.3 mm. wide, partially fused to calyx; Style, 7.0-7.5 mm., single, ±≥anthers; Stigma, simple; Fruit, #4 nutlets, 1.7 mm. × 1.5 mm. wide. (Described from Coll. Nos. 1906 & 2035.)

- Kinney Run, Tom Schweich 1848. 5/15/2020. .

Brassicaceae

Alyssum alyssoides (L.) L. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Notes: Transferred from USGS Herbarium, Denver, CO (2005). United States, Colorado, Jefferson, Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Handsford T. Shacklette 5899. 27 Jun 1959. ( COLO528506^‡ ) . .

Barbarea vulgaris R. Br. Garden Yellowrocket. CalPhotos. Jepson eFlora. SEINet Taxon.

Probably a biennial or perennial, to 40 cm., terrestrial but growing in flowing water, glabrous throughout; Leaves, lower cauline, 150 mm. × 45 mm. wide, pinnafitid, lyrate, lobes, #9, terminal lobe 47 mm. × 40 mm. wide, auriculate, auricles, glabrous, leaves reduced upward, upper cauline, sessile, 35 mm. × 18 mm. wide, lobes, 3; Inflorescence, not bracted; Flowers, radial; Sepals, 2.5 mm. × 1.8 mm. wide, ovate, rows, #1, color, yellow; Petals, 6 mm., obovate, claw not conspicuously differentiated from blade, margin, entire, color, yellow; Stamens, #6; Filaments, 4 mm., plain; Anthers, 1 mm.; Fruit, pedicels, 5 mm., glabrous, mature, 19.5 mm. × 0.5 mm. wide, spreading, glabrous. (Described from Coll. No. 1818, 16 May 2018.)

- Kinney Run, Growing in flowing water. In a tributary to the locally named “Kinney Run,” recognized by the BGN as Deadman Gulch, 2.8 km. south of the GNIS location of Golden. Tom Schweich 1818. 16 May 2018. ( CDA0052347^‡ JCOS s.n. KHD00068472^‡ ) . .

Camelina microcarpa Andrz. ex DC. Little-Podded False Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, terrestrial, herb, 45 cm. to 80 cm. tall; Stem, erect, mostly single, some branched mid-stem, proximal, simple and forked hairs, distal, glabrous; Leaves, basal, absent or withered, cauline, #11-25, sessile, distal basally lobed 1.2 mm., 26-62 mm. × 6.5-10 mm. wide, reduced above, lanceolate, hairs simple and forked; Inflorescence, to 220 mm. × 35 mm. wide, not bracted, not one-sided; Flowers, radial; Pedicels, 4-8 mm., glabrous; Sepals, #4, rows, #1, 2.4-2.7 mm. × 0.8-1 mm. wide, ovate, color, green, margin chartaceous, tip purplish, abaxially hairy; Petals, 3.7-4.0 mm. × 0.7-0.9 mm. wide, oblong-spatulate, margin, entire, color, yellow; Stamens, #6, 3 mm.; Filaments, plain or maybe very narrowly winged; Anthers, 0.7 mm., ovate; Ovary, 1.8 mm. × 0.9 mm. wide; Style, 0.8 mm.; Stigma, capitate, 0.4 mm. wide; Fruit (mature), pedicels, 15 mm., 3 × than fruit, spreading, 5 mm. × 3.2-3.5 mm. wide, wider above middle, somewhat flattened, parallel to replum, coriaceous, short-winged (or strong-margined), valve mid-vein apparent but not prominent; Seeds, many, 1.0 mm. × 0.7 mm. wide, angled, papillate (Described from Coll. No. 1876 and 1883).

- Eagle Ridge, On mesa slope in foothills. Transferred from USGS Herbarium, Denver, CO (2005). Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5901. 27 Jun 1959. ( COLO528474^‡ ) . .

Chorispora tenella (Pall.) DC. Crossflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, hairs 0, sparsely stalked-gland-dotted; Leaves basal, withered at flowering, cauline simple, not basally lobed or clasping; Flowers radial; Corolla purple; Stamens 6; Ovary linear when young; Fruit linear, bilateral, to 4 cm, seed in proximal 2.5 cm., tip pointed; Seeds in two rows, brown, 1 mm (Described from Coll. No. 301, 5 Nov 2012).

- Kinney Run, Between Kinney Run Trail and the creek, just north of Tripp Ranch, 3.36 km. south of the GNIS location of Golden. Tom Schweich 1778. 12 Apr 2018. ( EIU KHD00068467^‡ ) . .

Descurainia sophia (L.) Webb. Tansy Mustard. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, 30 cm. (to 50 cm. when growing among grasses), not scapose; Tap root; Stem simple at base, branched distally; Hairs many-branched; Leaves basal 0, cauline compound, 2-3 pinnately dissected, sessile, not basally lobed, sagittate, or clasping; Inflorescence not bracted; Pedicel, in fruit diverging 30–45°; Petals yellow, 2.5 mm.; Ovary linear; Stigma ±entire (there are clearly two separate segments of the stigma that are receptive, but there is no central cleft between them); Fruit (7-15 mm.) -25 mm., linear (not fusiform or club-shaped), glabrous, not appressed; Septum veined Seeds, multiseriate (Described from Coll. Nos. 404, 854, and 935).

Draba nemorosa L. Woodland Whitlow Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual terrestrial herb, 11 to 25 cm., hairs vary: none, simple, forked, but not dolabriform; Stem, proximal, hairs simple and forked, distal, glabrous; Leaves, basal and cauline, Basal, simple, 12 mm. × 4.5 mm. wide, hairs forked; Cauline, #5-6, sessile, 11 mm. × 4 mm. wide, sparsely dentate, hairs, simple and forked; Inflorescene, raceme; Sepals, rows, #1, 1.3 mm. × 0.7 mm. wide, ovate, color, green turning yellow, abaxial hairs wavy; Petals, 2 mm. × 0.7 mm. wide, spoon-shaped, margin entire, color, yellow; Stamens, #4 or 6, 1.3 mm.; Anthers, 0.3 mm.; Style, very short; Fruit, pedicels, 20 mm., puberulent, body, 7 mm. × 2 mm. wide, ascending, short straight appressed hairs (Described from Coll. No. 1821, 16 May 2018).

- Kinney Run, Among deep grasses, forbs, and a few shrubs. Small alluvial terrance between the streambeds of Kinney Run and Deadman Gulch, 2.8 km. south of the GNIS location of Golden Tom Schweich 1821. 16 May 2018. ( COLO02348142^‡ KHD00068466^‡ UCR ^‡ ) . .

Hesperis matronalis L. Dame's Rocket. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Deadman Gulch, The pond was reconstructed by the City of Golden late in 2016. Deadman Gulch is locally euphemistically referred to as “Kinney Run.” Colorado Noxious Weed List B. Adjacent to a small artificial pond in Deadman Gulch, about 150 m. upstream of the gulch undercrossing of US Highway 6, 2.5 km. south of the GNIS location of Golden. Tom Schweich 1441. 15 Jun 2016. ( CS JCOS s.n. KHD00063536^‡ ) . .

Lepidium draba L. (Syn: Cardaria draba (L.) Desv. ) White Top, Hoary Cress. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

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

Physaria vitulifera Rydb. Bull. Torrey Bot. Club 28: 278. 1901. (Syn: P. vitulifera × bellii ) Roundtip Twinpod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, terrestrial herb, caespitose, stellate hairy throughout, flowering branches to 15 cm.; Roots, tap; Stem, scapose, hairs as above; Leaves, basal and cauline, basal, petiole 10-35 mm. + blade 22-24 mm. × 8-14 mm. wide, elliptic, weakly pinnately lobed, to few basal leaves with a single pair of teeth, otherwise entire, tip barely acuminate, cauline, alternate, nearly sessile, 13-22 mm. × 4-4.5 mm. wide, oblancelate, margin entire; Pedicel, 5 mm., ascending, becoming s-shaped in fruit; Sepals, #4, 5-7 mm. × 1.5 mm. wide, lanceolate, green, hairy as above; Flowers, Petals, #4, 10 mm. × 2-2.5 mm. wide, obovate, margin entire, color yellow; Stamens, #6 (4 long, 2 short), 6-8 mm.; Filaments, 4.5-6 mm., pair of short filaments slightly winged proximal ½; Anthers, 1.5 mm., saggitate (?); Ovary, 2 mm. × 1.8 mm. wide; Style, #1, 4-6.4 mm., persistent, not elongating in fruit; Fruit, pedicels, 18-20 mm, longest sigmoid, hairs as above, mature fruit, didymous, 3-4.5 mm. × 4 mm. wide, round, apical sinus well-developed, basal sinus much less so, hairy as above; Ovules, 4 per ovary (Described from Coll. No. 1345, 12 May 2016 and Coll. No. 1828, 16 May 2018). Some will key to P. bellii in Ackerfield (2015) at couplet 17 per the shape of the basal leaves, which can be entire to very shallowly once dentate. However, FNANM sends this in the direction of P. vitulifera at couplet 12 based on the relative development of the basal and apical sinuses of the fruit.

- Kinney Run, In and around the rock outcrop of the hogback. Tom Schweich 1589. 4/12/2018. Basal leaves just barely sculpted, petiole 5mm. wide. Tom Schweich 1813. 4/27/2020. Approximate northern extent of Physaria. Tom Schweich 1814. 4/27/2020. Approximate south end of outcrop and Physaria. Tom Schweich 1815. 4/27/2020. Growing in fractures of sandstone outcrops. Outcrops of sandstone about 2/3 of the way up the west limb of the hogback, east side of Kinney Run, 3.07 km. south of the GNIS location of Golden. Tom Schweich 1828. 16 May 2018. ( CAS CDA0052350^‡ COLO02347714^‡ EIU KHD00068464^‡ UCR ^‡ ) Combined with Coll. No. 1828. Tom Schweich 1828.1 16 May 2018. ( Golden ) Combined with Coll. No. 1828. Tom Schweich 1828.2 16 May 2018. ( Golden ) Tom Schweich 1840. 5/15/2020. Tom Schweich 1844. 5/15/2020. Common on outcrops of Lykens sandstone. Colorado rare plant: G3/S3: Vulnerable, found locally in a restricted range. Collection made to rule out P. vitulifera × bellii. Near the top of steep sandstone outcrops, east side of Kinney Run, just north of Tripp Ranch, 4.4 km. south of the GNIS location of Golden. Tom Schweich 2276. 15 May 2020. ( Golden ) . .

Thlaspi arvense L. Field Penny Cress. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 50 cm., generally glabrous throughout; Stem, single, or few-branched proximally; Leaves, basal and cauline, basal, withered at flowering, cauline, sessile, auriculate, oblong, 30 mm. × 5-9 mm. wide, reduced distally, dentate; Inflorescence, raceme; Sepals, 2 mm. × 1 mm. wide, ovate; Petals, 3-3.5 mm. × 1 mm. wide, spoon-shaped, margin entire, white; Stamens, 2 mm.; Anthers, 0.5 mm.; Fruit, pedicels 10-15 mm., ascending to spreading, glabrous, fruit obovate, 10 mm. × 8 mm., wide, margin winged, tip notched 1 mm.; Ovules, biseriate, #many (Described from Coll. No. 1324, 4 May 2016).

- Kinney Run, Among deep grasses, forbs, and a few shrubs. Small alluvial terrance between the streambeds of Kinney Run and Deadman Gulch, 2.8 km. south of the GNIS location of Golden Tom Schweich 1820. 16 May 2018. ( CDA0052348^‡ COLO02348134^‡ EIU JCOS s.n. ) .

Cactaceae

Escobaria missouriensis (Sweet) D.R.Hunt. (Syn: Coryphantha missouriensis (Sweet) Britton & Rose ) Missouri Foxtail Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3177. 5/28/2023. . .

Opuntia polyacantha Haw. Plains Pricklypear. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, East-facing grassy slope. Deadman Gulch is often referred to by the locally euphemistic name of “Kinney Run.” High plains between US Hwy 6 and Lookout Mountain, about 220 m. northwest of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1428. 15 Jun 2016. ( KHD00064000^‡ ) .

Cannabaceae

Celtis reticulata Torr. (Syn: Celtis laevigata Willd. var. reticulata L. D. Benson ) Net-Leaved Hackberry. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tract A, Tom Schweich 3293. 6/19/2023. . .

Humulus lupulus L. Common Hops. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, With Cercocarpus montanus and Ribes cereum, twining on Cercocarpus montanus. Nomenclature per FNANM. This area was collected by Handsford T. Shacklette (27 Jun 1959, 24 vouchers at COLO), but Humulus was not among his collections. In a pit of a former mine on the east side of the locally named “Eagle Ridge,” 400 m. west of the intersection of US Highway 6 and Heritage Road, 3.76 km. south of the GNIS location of Golden. Tom Schweich 2419. 17 Aug 2020. ( COLO2433951^‡ KHD00072971^‡ ) Partially filled in clay mine pit, growing from the soil in the pit up the southwest wall. Also collected here Clematis ligusticifolia and C. orientalis. Mailed to: Joshua Havill, 411 Borlaug Hall, 1991 Upper Buford Circle, St. Paul, MN 55108 On a small hogback informally named “Eagle Ridge,” 3.7 km. south of the GNIS location of Golden. Partially filled-in clay mine pit near top of ridge. Tom Schweich 2444. 17 Oct 2020. ( Mailed. ) . .

Humulus neomexicanus (A. Nelson & Cockerell) Rydb. New Mexican Hops. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Also seen or collected here: Crataegus succulenta, Prunus americana, Epilobium hirsutum, and Arctium minus. Nomenclature per FNANM. In a small wetland in Deadman Gulch about mid-way between Kinney Run and Apex Park, 2.37 km. south of the GNIS location of Golden. Tom Schweich, with Susan Panjabi and Zachariah Wilson 2417. 11 Aug 2020. ( COLO2434512^‡ CS KHD00072970^‡ OBI186040^‡ ) .

- Kinney Run, Beside the Kinney Run Trail. Tom Schweich, with Cynthia Hastings. 3559. 5/31/2024. Tom Schweich, with Suzy Stutzmann 2963. 3/30/2023. .

Caprifoliaceae

Dipsacus laciniatus L. Cutleaf Teasel. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, In a thicket of Rhus trilobata; also seen or collected nearby: Elaeagnus angustifolia, and Acer negundo. Colorado Noxious Weed List B. West side of Kinney Run between the creek and the houses of Stonebridge HOA, between Deadman Gulch and Tripp Ranch, 2.45 km. south of the GNIS location of Golden. Tom Schweich 2412. 31 Jul 2020. ( CAS COLO2433928^‡ REGIS UC ) .

Caryophyllaceae

Cerastium arvense L. ssp. strictum Gaudin. (Syn: Cerastium strictum L ) Field Chickweed. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Kinney Run, 40 m. east of and above the Kinney Run Trail, in the sandstone of a hogback, at the base of Cercocarpus montanus, which itself was rooted in a fracture of the bedrock, 3.22 km. south of the GNIS location of Golden. Tom Schweich 1780.1 12 Apr 2018. ( COLO02348076^‡ ) .

Convolvulaceae

Convolvulus arvensis L. Field Bindweed. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1638. 7/6/2018. .

Cornaceae

Cornus sericea L. (Syn: Swida sericea (L.) Holub. ) Creek Dogwood. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, probable garden escapee Tom Schweich, with Suzy Stutzmann and Laurel Starr. 2965. 3/30/2023. .

Elaeagnaceae

Elaeagnus angustifolia L. Russian Olive. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1988. 7/31/2020. .

Euphorbiaceae

Euphorbia brachycera Engelm. (Syn: Tithymalus brachyceras (Engelm.) Small ) Horned Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 25-30 cm., glabrous throughout; Stem, erect, herbaceous; Leaves, alternate, sessile, lanceolate, 16 mm. × 8 mm. wide, margin entire, tip acute, green throughout; Flowers, arranged in a cyathium, glands entire with “horns” on either side. (Described from Coll. No. 2485, 2 June 2021.)

Euphorbia marginata Pursh. (Syn: Agaloma marginata (Pursh) A. Löve & D. Löve ) Snow on the Mountain. CalPhotos. Jepson eFlora. SEINet Taxon.

Euphorbia myrsinites L. (Syn: Tithymalus myrsinites (L.) Hill ) Myrtle Spurge. Weed: CO DofA, List: A. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, West-facing slope, just beginning to bloom, collection from southern edge of an infestation that extends 175 m. north along the rock outcrop. 3.31 km. south of the GNIS location of Golden. Tom Schweich 1779. 12 Apr 2018. ( CDA0052337^‡ COLO02347995^‡ EIU KHD00069143^‡ ) . .

Euphorbia peplus L. (Syn: Tithymalus peplus (L.) Hill ) Petty Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Accidental collection of 1 plant with Coll. No. 1827. Tom Schweich 1672. 5/16/2018. .

Fabaceae

Astragalus drummondii Dougl. ex Hook. Drummond's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35 cm., caulescent; Stem, rachis, abaxial leaf surfaces, and calyx spreading hairy, hairs basifixed; Leaves, cauline, compound, odd-pinnate, stipules, 9 mm., free, entire, leaflets, 23-27, 19 mm. × 5.5 mm. wide, wavy hairy abaxially and marginally, ±glabrous adaxially; Calyx, tube 6 mm. + lobes 3 mm. = 9 mm., green at base to cream color at tube and lobes, few dark wavy hairs, persistent; Corolla, 17 mm., color cream, banner, 17 mm., wings, claw 6 mm. + blade 9 mm., tip obtuse, keel, 14 mm., tip purple, Ovary, 9 mm.; Style, 4 mm., glabrous, persistent; Fruit, stalked 12 mm. + body 26 mm. × 4 mm. wide, pendant, smooth, glabrous, not inflated. Described from Coll. No. 1141, 9 Jun 2015.

- Deadman Gulch, Open east-facing grassy slopes. Deadman Gulch is locally euphemistically known as “Kenny Run.” High plains between US Hwy 6 and Lookout Mountain, about 140 m. west of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1423. 15 Jun 2016. ( CAS KHD00063604^‡ UC ) . .

Astragalus shortianus [Nutt. ex] Torr. & A.Gray. Short's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 10 cm., acaulescent; Leaves, compound, petiole, 50 mm., blade, 90 mm. × 37 mm. wide, leaflets, #13, 17 mm. × 10 mm. wide, terminal leaflet not a tendril, petiole, rachis, and leaflets with appressed stiff straight hairs; Inflorescence, not an umbel; Calyx, tube 6 mm. + lobes 4 mm., hairs similar; Flower, zygomorphic, banner 22 mm., wings 18 mm., clawed, keel, 22 mm., tip obtuse; Fruit, 35 mm. × 10 mm. wide, falcate, appressed stiff basifixed straight hairs (Described from Coll. No. 1826, 16 May 2018).

- Eagle Ridge, Tom Schweich 3040. 5/9/2023. .

- Kinney Run, Beside Kinney Run Trail, amongst Festuca saximontana Tom Schweich 1812. 4/27/2020. Three plants on a steep east-facing alluvial slope. Small hill between Kinney Run and Deadman Gulch near their junction, 2.86 km. south of the GNIS location of Golden. Tom Schweich 1826. 16 May 2018. ( COLO02347847^‡ KHD00069188^‡ ) . .

Pediomelum tenuiflorum (Pursh) A. N. Egan. (Syn: Psoralea tenuiflora Pursh , Psoralidium tenuiflorum (Pursh) Rydb. ) Slimflower Scurfpea. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Mostly disturbed grassland at the base of a bank constructed for houses, also seen here: Andropogon gerardii. West side of Kinney Run, near the houses of Stonebridge HOA between Deadman Gulch and Tripp Ranch, near an unnamed ephemeral stream draining Apex Park into Kinney Run, 2.56 km. south of the GNIS location of Golden. Tom Schweich 2413. 31 Jul 2020. ( CAS CDA0053774^‡ COLO2433936^‡ UCR ) .

Grossulariaceae

Ribes aureum Pursh. Golden Currant. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Kinney Run, Among deep grasses, forbs, and a few shrubs. Small alluvial terrance between the streambeds of Kinney Run and Deadman Gulch, 2.8 km. south of the GNIS location of Golden Tom Schweich 1822. 16 May 2018. ( CAS COLO02348183^‡ KHD00069199^‡ ) . .

Ribes cereum Douglas. Wax Currant. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Transferred from USGS Herbarium, Denver, CO (2005). In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5882. 27 Jun 1959. ( COLO530282^‡ ) .

- Kinney Run, Among deep grasses, forbs, and a few shrubs. Small alluvial terrance between the streambeds of Kinney Run and Deadman Gulch, 2.8 km. south of the GNIS location of Golden Tom Schweich 1823. 16 May 2018. ( CAS COLO02348175^‡ KHD00069203^‡ ) .

Lamiaceae

Monarda fistulosa L. Wild Bergamot. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1634. 7/6/2018. . .

Salvia pratensis L. Meadow Clary. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Likely garden escapee. Along Deadman Gulch (Kinney Run), between US Highway 6 and Eagle Ridge Drive, on a bank of the creek, 3.24 km. south of the GNIS location of Golden. Tom Schweich 2424. 17 Aug 2020. ( COLO2434033^‡ KHD00072964^‡ ) . .

Scutellaria brittonii Porter. Britton's Skullcap. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Southeast-facing slope, most dense in and around Rhus trilobata shrubs. Slightly above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 50 m. northwest of Kinney Run Trail, 3.17 km. south of the GNIS location of Golden. Tom Schweich 2042. 2 Jun 2019. ( CS KHD00071099^‡ REGIS UC ) .

- Eagle Ridge, Tom Schweich 3172. 5/28/2023. .

- Kinney Run, Small, dense colony. East-facing alluvial slope of a small hill between Kinney Run and Deadman Gulch, 2.86 km. south of the GNIS location of Golden. Tom Schweich 1825. 16 May 2018. ( COLO02348274^‡ UCR ^‡ ) Tom Schweich 1841. 5/15/2020. .

Linaceae

Linum perenne L. (Syn: Adenolinum perenne (L.) Rchb. ) Blue Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

Weber & Wittmann (2012) distinguish between L. perenne and L. lewisii with the character of heterostyly in which some plants have styles longer than stamens and others with styles shorter than stamens. They apply homostyly to L. lewisii noting that the styles and stamens are approximately equal. My plants (Coll. No. 1383) consistently have styles longer than stamens. The key in Ackerfield (2015), based on plant structure and overall shape is not helpful because of the range of characters observed with this collection.

- Eagle Ridge, Tract A, Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 70 m. northwest of the Kinney Run Trail, 2.37 km. (geodesic) south of the GNIS location of Golden. Tom Schweich 2980. 19 Jun 2023. ( Golden ) .

Malvaceae

Sphaeralcea coccinea (Nutt.) Rydb. Cowboy's Delight. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Open east-facing grassy slopes. Uncommon, only one seen here, two more 165 m. northwest (Coll. No. 1433). High plains between US Hwy 6 and Lookout Mountain, about 140 m. west of the Deadman Gulch undercrossing of US Hwy 6, 2.3 km. south of the GNIS location of Golden. Tom Schweich 1424. 15 Jun 2016. ( KHD00063998^‡ ) .

- Eagle Ridge, On mesa slope. Transferred from USGS Herbarium, Denver, CO (2005). In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5898. 27 Jun 1959. ( COLO529413^‡ ) Tom Schweich 3181. 5/28/2023. .

- Eagle Ridge, Tract A, Common in this field, drier patch dominated by Artemisia ludoviciana, stiff clay soil. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 50 m. northwest of the Kinney Run Trail, 2.38 km. (geodesic) south of the GNIS location of Golden Tom Schweich 2977. 19 Jun 2023. ( Golden ) .

Nyctaginaceae

Mirabilis nyctaginea (Michx.) MacMill. (Syn: Allionia nyctaginea Michx. , Calymenia nyctaginea (Michx.) Nutt. , Oxybaphus nyctagineus (Michx.) Sweet ) Heartleaf Four O'Clock. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Riparian, also seen or collected nearby: Clematis ligusticifolia, Crataegus succulenta, Epilobium hirsutum, Symphyotrichum lanceolatum var. hesperium, and Arrhenatherum eliatus. On the bank southwest side above the creek in Deadman Gulch (Kinney Run), above US Highway 6 and just below Eagle Ridge Drive, 3.43 km. south of the GNIS location of Golden. Tom Schweich 2442.1 28 Aug 2020. ( CAS CDA0053780^‡ KHD00072994^‡ UCR ) .

- Kinney Run, Beside Deadman Gulch, also euphemistically called Kinney Run, along Illinois Street between US Highway 6 and the Fossil Trace Golf Club, 2.16 km. south southeast of the GNIS location of Golden. Tom Schweich 1963. 7 Jul 2018. ( COLO KHD00068920^‡ OBI170738^‡ UC ) .

Oleaceae

Fraxinus pennsylvanica Marshall. Green Ash. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3182. 5/28/2023. .

Onagraceae

Epilobium ciliatum Raf. Fringed Willowherb. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Foothills grassland north side of creek; foothills shrubland south side of creek; Also collected here: Solanum dulcamara, Cirsium arvense, Dactylis glomerata, and Thinopyrum intermedium. Near the junction of Deadman Gulch and Kinney Run, south bank of creek, 2.28 km. south of the GNIS location of Golden. Tom Schweich 2409. 31 Jul 2020. ( CAS CDA0053771^‡ COLO2434017^‡ UC ) . .

Epilobium hirsutum L. Hairy Willowherb. Weed: CO DofA, List: A. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Tom Schweich 1979. 7/24/2020. With Epilobium ciliatum, Rumex crispum,Canada thistle, Salix amygdaloides, and Catnip. Tom Schweich 1997. 8/23/2020. Near the playground in Deadman Gulch. Tom Schweich 1998. 8/23/2020. Along a tributary to Deadman Gulch. Tom Schweich 1999. 8/23/2020. spread along the streambed Tom Schweich 2003. 8/28/2020. In streambed. Common along Deadman Gulch below Eagleridge Drive, and Kinney Run below Deadman Gulch to US Highway 6. Colorado Noxious Weed List A. Near the junction of Deadman Gulch and Kinney Run, 2.28 km. south of the GNIS location of Golden Tom Schweich 2406. 31 Jul 2020. ( COLO2433977^‡ KHD00073465^‡ OBI149098^‡ UCR ) .

- Kinney Run, in the bed of Kinney Run Tom Schweich, with Suzy Stutzmann and Laurel Starr. 2964. 3/30/2023. . .

Oenothera biennis L. King's-Cureall. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial (biennial?), to 60 cm., hairy throughout, hairs lacking red pustular bases; Stem, leafy; Leaves, basal, unknown, cauline, 90-115 mm. × 23-35 mm., elliptic to falcate, margin shallowly dentate, tip acute; Sepals, 11 mm., spreading to reflexed in maturity, tips barely free in bud; Flowers, solitary in leafy bracteate spike, petals, 10 mm., obovate, yellow, fading both orange and pink; Stigma, 4-lobed; Capsules, 17-21 mm., not mature (Described from Coll. No. 2416, 11 Aug 2020). Accepted by Ackerfield (2015). Will key to O. villosa in Weber & Wittman (2012) wherein this taxon is not recognized. Native to central and eastern US and the Pacific coast, but not to Colorado, Idaho, Wyoming, Utah, or Arizona.

- Deadman Gulch, Mixed foothils shrubland and grassland. Collected during CNHP survey of Stonebridge HOA open space contracted by Stewards of Golden Open Space. Stonebridge HOA-owned open space between Mourning Dove Lane and Blue Jay Drive, above Eagle Ridge Drive and below Jefferson County Open Space Apex Park, 4.12 km. south of the GNIS location of Golden. Tom Schweich, with Susan Panjabi and Zachariah Wilson 2416. 11 Aug 2020. ( KHD00073445^‡ ) . .

Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. (Syn: Gaura coccinea Pursh , Gaura glabra Lehm. ) Linda Tarde. CalPhotos. Jepson eFlora. SEINet Taxon.

Herbaceous perennial, to 60 cm.; Stipules absent; Leaves alternate, 25 mm. x 5 mm., lanceolate, few toothed; Inflorescence straight, open; Bracts 2-3 mm.; Buds erect; Sepals fused to tip in bud, all coming free, reflexed, 6 mm., not persistent after flowering; Hypanthium 6 mm.; Petals entire; Stamens 8, < stigma; Anthers maturing in unison with stigma; Ovary at flowering > distal internode (ergo infl. "open"); Stigma 4-lobed; Fruit 7 mm., stalk-like base 0, erect, fusiform, gradually wider at middle, puberulent, indehiscent; Seeds few, 2 mm., glabrous, not winged (Decribed from Coll. No. 317, keyed 15 Dec 2012).

- Eagle Ridge, On mesa slope in foothills. In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5877. 27 Jun 1959. ( COLO 00860197^‡ ) .

Orobanchaceae

Orobanche fasciculata Nutt. (Syn: Aphyllon fasciculatum (Nutt.) Torr. & A. Gray ) Clustered Broomrape. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, With Artemisia frigida and Lithospermum incisum Slightly above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 90 m. northwest of Kinney Run Trail, 3.17 km. south of the GNIS location of Golden. Tom Schweich 2043. 2 Jun 2019. ( KHD00071097^‡ ) .

- Eagle Ridge, On mesa slope in foothills. Transferred from USGS Herbarium, Denver, CO (2005). In foothills of the Front Range at junction of US 6 and road to Morrison. About 1 mile east of Golden. Hansford T. Shacklette 5883. 27 Jun 1959. ( COLO529513^‡ ) .

Papaveraceae

Argemone polyanthemos (Fedde) G.B. Ownbey. Crested Prickly Poppy. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1632. 7/6/2018. .

Plantaginaceae

Collinsia parviflora Lindl. Maiden Blue-eyed Mary. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3037. 5/9/2023. . .

Linaria dalmatica (L.) Mill. (Syn: Linaria dalmatica (L.) Mill. ssp. dalmatica , Linaria genistifolia (L.) Mill. ssp. dalmatica (L.) Maire & Petitm. ) Dalmatian ToadFlax. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tract A, Common in this field of remnant mixed-grass prairie, drier patch dominated by Artemisia ludoviciana, stiff clay soil. Colorado Noxious Weed List B. iNaturalist Observation 192499979. EDDMapS Record ID 11644454. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 100 m. northwest of the Kinney Run Trail, 2.35 km. (geodesic) south of the GNIS location of Golden. Tom Schweich 2981. 19 Jun 2023. ( Golden ) . .

Penstemon virens Pennell ex Rydb. Front Range Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Sparsely vegetated sandstone among Cercocarpus montanus. Common Front Range Penstemon. Top of small hogback between Kinney Run and Eagle Ridge Drive, 3.01 km. south of the GNIS location of Golden. Tom Schweich 1830. 16 May 2018. ( CDA0052351^‡ COLO02347540^‡ EIU ) . .

Penstemon virgatus A. Gray var. asa-grayi (Crosswh.) Dorn. Upright Blue Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Transferred from USGS Herbarium, Denver, CO (2005). . In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5893. 27 Jun 1959. ( COLO530263^‡ ) . .

Plantago patagonica Jacq. Woolly Plantain. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, herb, to 10 cm., drying light green; Leaves, basal rosette, 55 mm. × 2.5 mm., narrowly oblanceolate, entire; Peduncle, 55 mm., not grooved, hairs ascending (not spreading), diameter >> than leaf hairs, Inflorescence, scapose, 10-12, in single terminal spikes, axis not visible between flowers; Bract, linear, 1-2 × calyx, exserted; Flower, bisexual, Corolla, lobes 1.8 mm., 1 erect, 3 spreading, tube glabrous (should be hairy); Stamens, 4, inserted; Style 1.2 mm.; Fruit, 2.5 mm Seeds 2, 1.4 mm., inner side deep concave (much easier to dissect fruit and examine seeds when dry, rather than when wetted with Pohl's solution, Described from Coll. No. 281, 24 April 2001).

- Eagle Ridge, In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5888. 27 Jun 1959. ( COLO529553^‡ ) .

Polemoniaceae

Ipomopsis spicata (Nutt.) V.E. Grant. Spiked Ipomopsis. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Northeast-facing slope, more open stoney ground, on what appears to be a southeast to northwest trend approximating the trend of Eagle Ridge to the southeast. Above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 110 m. northwest of Kinney Run Trail, 3.17 km. south of the GNIS location of Golden. Tom Schweich 2044.1 2 Jun 2019. ( KHD00074450^‡ ) Northeast-facing slope, more open stoney ground, on what appears to be a southeast to northwest trend approximating the trend of Eagle Ridge to the southeast. Same as Coll. No. 2044.1. A little beaten down by recent hail. Above the watercourse locally named "Kinney Run," between US Highway 6 and Eagle Ridge Drive, 140 m. northwest of Kinney Run Trail, 3.17 km. south of the GNIS location of Golden. Very near the boundary of the Colorado School of Mines Survey Field. Tom Schweich 2045. 2 Jun 2019. ( OBI183252^‡ UCR ) .

Polygonaceae

Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853. (Syn: Pterogonum alatum (Torr.) Gross ) Winged Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, just east of the top of the ridge. Tom Schweich 2000. 8/28/2020. . .

Eriogonum effusum Nuttall, Proc. Acad. Nat. Sci. Philadelphia. 4: 15. 1848. Spreading Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- Eagle Ridge, Flowers not quite open. Tom Schweich 1992. 8/17/2020. . .

Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

Type collected “near the Rocky Mountains” by Edwin James, 1820. Described by Torrey in 1827.

- Eagle Ridge, On mesa slope in foothills. Notes: Transferred from USGS Herbarium, Denver, CO (2005) United States, Colorado, Jefferson, In foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Handsford T. Shacklette 5886. 27 Jun 1959. ( COLO529545^‡ ) . .

Fallopia japonica (Houtt.) Ronse Decr. (Syn: Polygonum cuspidatum Siebold & Zucc. , Reynoutria japonica Houtt. ) Japanese Knotweed. Weed: CO DofA, List: A. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, under treatment by City of Golden 2946. 8/27/2022. .

Ranunculaceae

Clematis ligusticifolia Nutt. Western White Clematis. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Also collected in these pits: Clematis orientalis and Humulus lupulus var. neomexicana. Vegetation outside the pits is foothills shrubland, including Cercocarpus montanus and Holodiscus dumosa. In a pit of a former mine on the east side of the locally named “Eagle Ridge,” 430 m. west of the intersection of US Highway 6 and Heritage Road, 3.70 km. south of the GNIS location of Golden. Tom Schweich 2420. 17 Aug 2020. ( CAS KHD00072962^‡ OBI186039^‡ UCR ) .

- Kinney Run, Beside Deadman Gulch, locally euphemistically called Kinney Run, between Eagle Ridge Drive and US Highway 6, 2.62 km. south southeast of the GNIS location of Golden. Tom Schweich 1970. 6 Jul 2018. ( COLO02348316^‡ JCOS s.n. KHD00068923^‡ OBI170766^‡ UC ) . .

Clematis orientalis L. Oriental Virginsbower. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, in a partially filled open pit mine. Tom Schweich 2001. 8/28/2020. In a pit of a former mine on the east side of the locally named “Eagle Ridge,” 430 m. west of the intersection of US Highway 6 and Heritage Road, 3.70 km. south of the GNIS location of Golden. Tom Schweich 2419.1 17 Aug 2020. ( Sterile, discarded. ) Also found in this pit: Humulus lupulus var. neomexicanus; Clematis ligusticifolia in the next pit to the north, vegetation just outside the pit is foothills shrubland above grassland. Colorado Noxious Weed List B In a former mine pit on the east side of “Eagle Ridge,” an informal name for a hogback between US Highway 6 and Eagle Ridge Drive, 3.76 km. south southeast of the GNIS location of Golden. Tom Schweich 2437. 28 Aug 2020. ( COLO2434074^‡ KHD00072976^‡ ) . .

Delphinium geyeri Greene. Geyer's Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5885. 27 Jun 1959. ( COLO529781^‡ ) . .

Delphinium nuttallianum Pritz. Twolobe Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 3179. 5/28/2023. .

Rhamnaceae

Rhamnus cathartica L. European Buckthorn. Weed: CO DofA, List: Unlisted. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, With Salix exigua and Prunus virginiana. Also locally called “Kinney Run,” in a triangular city parcel along the projection of Illinois Street below US Highway 6. Tom Schweich 2925. 28 May 2023. ( Golden ) With Salix exigua and Prunus virginiana. Same plant as Coll. No. 2925. EDDMapS Record ID 11613828. Also locally called “Kinney Run,” in a triangular city parcel along the projection of Illinois Street below US Highway 6. Tom Schweich 2991. 19 Jun 2023. ( Golden ) .

- Kinney Run, Determination tentative, needs to be verified in spring. Tom Schweich 2961. 11/10/2022. .

Rosaceae

Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany. CalPhotos. Jepson eFlora. SEINet Taxon.

Described by Rafinesque from a specimen collected by Edwin James of the Long Expedition, 1820, probably in present Jefferson County, Colorado. Rafinesque was somewhat frustrated by Torrey's reluctance publish a new species name in assigning James' collection to C. fothergillides Humb. Bonpl. And Kunth.

- Kinney Run, Tom Schweich 1629. 7/6/2018. . .

Crataegus succulenta Schrad. ex Link. Fleshy Hawthorn. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich 1641. 7/6/2018. . .

Holodiscus discolor (Pursh) Maxim. var. dumosus (S. Watson) Maxim. Ex J. M. Coult. (Syn: H. dumosus (Nutt. ex Torr. & A.Gray) A.Heller ) Rock Spiraea. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, Tom Schweich 1982. 7/24/2020. Tom Schweich 3178. 5/28/2023. Tom Schweich 3180. 5/28/2023. . .

Potentilla fissa Nutt. ex Torr. & A.Gray. (=Drymocallis fissa (Nutt.) Rydb.) Bigflower Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, caespitose, to 20 cm., terrestrial, not stoloniferous, rhizomatous, glandular-hairy throughout; Stem, erect, green, multicellular viscid hairs; Leaves, basal, 58-125 mm. × 16-26 cm. wide, pinnately compound, leaflets, #11; cauline, #3-4 per stem, alternate, stipules, 5 mm. × 2 mm. wide, lanceolate, entire to once shallowly toothed; petiole, 18 mm., prior years remaining on plant (as sometimes described for P. rupincola), multicellular viscid hairs, leaflets, #7-13, 40-51 mm. × 20-22 mm. wide, petiolulate (not decurrent), 12 mm. × 9 mm. wide, viscid hairy, terminal leaflet (8)10 mm. side, margin, flat, serrate, teeth, 4-6 per side, on distal ¾, tip dark reddish; Inflorescence, congested cyme, with 5-7 flowers; Flowers, limb, 15 mm.; Calyx, lobes, #5, 7-11 mm. × 2.7-4.5 mm. wide, fused ±½, viscid hairy, epicalyx bractlets, 3-5 mm. × 0.8-1.3 mm. wide, ±½ sepals; Receptacle, hairy, <1 mm., Petals, 7-9 mm. × 5-9 mm. wide, obovate, color yellow; Stamens, >25; Anthers, 1.4 mm. × 1 mm. wide; Ovaries, many, superior, glabrous; Styles, widest at middle, or thickest at base, tapered from middle, attached laterally below top of ovary; Stigma, #1; Achenes, glabrous. (Described from Coll. No. 1364, 21 May 2016, and Coll. No. 1911, 31 May 2018).

- Eagle Ridge, Tom Schweich 3174. 5/28/2023. . .

Prunus americana Marshall. American Plum. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial woody shrub, spreading, to 2 m., blooming before leafing out; Branches, unarmed, glabrous when young, peeling to brown; Leaves, (immature, at time of flowering), simple, 15-19 mm. × 5.5-8 mm. wide, lanceolate or elliptic-rhomboid, pinnately veined, glabrous, margin toothed, teeth eglandular, base slightly hairy, petiole 3 mm., adaxially hairy; Flowers, in small groups of 2-3; Pedicels, 9-18 mm., glabrous to sparsely hairy; Hypanthium, 2 mm.; Sepals, 2.5-2.8 mm., reflexed, few cobwebby hairs adaxially; Petals, free, white, 5-7 mm. × 2.5-4.5 mm. wide; Stamens, many (30?); Ovary superior; Styles #1, 10 mm.; Fruit unknown (Described from Coll. No. 1093, 30 Apr 2015, and Coll. No. 1819, 16 May 2018).

- Deadman Gulch, Climbed upon by Humulus lupulus, also here: Epilobium hirsutum, and E. ciliatum, Urtica dioica, and Crataegus succulenta. Around edges of small wetland in Deadman Gulch, 3.80 km. south of the GNIS location of Golden. Tom Schweich 2443. 4 Sep 2020. ( KHD00072469^‡ ) .

- Kinney Run, Few shrubs in deep grasses; Ribes aureum and R. cereum also collected here. Small alluvial terrance between the streambeds of Kinney Run and Deadman Gulch, 2.8 km. south of the GNIS location of Golden Tom Schweich 1819. 16 May 2018. ( COLO02348167^‡ KHD00069208^‡ ) . .

Prunus virginiana L. Chokecherry. CalPhotos. Jepson eFlora. SEINet Taxon.

The most useful distinction is between chokecherries found east of the Rocky Mountains, var. virginiana and those found from the mountains westward, var. demissa. Plants of the High Plains show intergradation between those of the Rockies and those of the East.

- Deadman Gulch, Slightly above the watercourse locally named “Kinney Run,” between US Highway 6 and Eagle Ridge Drive, 3.2 km. south of the GNIS location of Golden Tom Schweich 2040. 2 Jun 2019. ( EIU KHD00071101^‡ OBI183241^‡ REGIS ) . .

Rosa woodsii Lindl. Mountain Rose. CalPhotos. Jepson eFlora. SEINet Taxon.

Prickles absent on new growth, leaflets 5-9, flowers 1-10(25).

- Eagle Ridge, On mesa slope. Transferred from USGS Herbarium, Denver, CO (2005). Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5881. 27 Jun 1959. ( COLO529988^‡ ) . .

Rubus deliciosus Torr. (Syn: Oreobatus deliciosus Torr.(E. James ex Torr.) Rydb. ) Delicious raspberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial shrub, to 1.5 m.; Stem, bark, shreddy; Leaves, simple, 17 mm. × 23 mm. wide, palmate veined, lobed, serrate, few straight hairs, petiole, 11 mm.; Flowers, white, solitary, 17-19 mm.; Fruit, unknown (Described from Coll. No. 1091, 30 Apr 2015).

- Kinney Run, Tom Schweich 1842. 5/15/2020. .

Salicaceae

Populus deltoides Marshall ssp. monilifera (Aiton) Eckenw. (Syn: Populus sargentii Dode ) Plains Cottonwood. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, East side of Highway 6, along what would be Illinois Street Tom Schweich, with Cynthia Hastings 3245. 31 May 2024. ( Undist. ) .

Sapindaceae

Acer negundo L. (Syn: Acer negundo L. var. interius (Britton) Sarg. , Negundo aceroides (L.) Moench ) Box Elder Maple. CalPhotos. Jepson eFlora. SEINet Taxon.

Tree, ±5 m.; Branches, young, soft short hairy (var. interius); Leaves, opposite, ternately compound, leaflets 3; Pistil 1; Stigma, branches 2; Fruit, 2 winged 1-seeded samaras. (Described from Coll. No. 1102, 11 May 2015).

- Kinney Run, Also seen or collected nearby: Rhus trilobata, Elaeaegnus angustifolia, Dipsacus laciniatus, and Typha latifolia. West side of Kinney Run nearing the houses of Stonebridge HOA, between Deadman Gulch and Tripp Ranch, 2.42 km. south of the GNIS location of Golden. Tom Schweich 2411. 31 Jul 2020. ( COLO2434124^‡ KHD00072990^‡ OBI186042^‡ UCR ) .

Scrophulariaceae

Scrophularia lanceolata Pursh. Lanceleaf Figwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, On the bank of Kinney Run, above its junction with Deadman Gulch, and near the Cambria Lime Kiln (historic site), 2.95 km. south southeast of the GNIS location of Golden. Tom Schweich 1964. 6 Jul 2018. ( COLO02348605^‡ KHD00069223^‡ OBI ) small colony in Rhus trilobata thicket Tom Schweich 1989. 7/31/2020. . .

Verbascum phlomoides L. Orange Mullien. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Determination tentative, very different from V. thapsus or V. blattaria. Tom Schweich, with Susan Panjabi and Zachariah Wilson 1991. 8/11/2020. .

Solanaceae

Lycium chinense Mill. Chinese Desert-Thorn. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herbaceous, sprawling; Stem, thorn, #1, 6 mm.; Leaves, alternate, petioles 5 mm., blade 44 mm. × 12 mm. wide, lanceolate to obovate, entire; Sepals, tube 4 mm. + lobes 1 mm., triangular; Corolla, united at base, tube 4 mm. + lobes #5, 5-6 mm. × 3.2 mm., radially symmetrical; Stamens, #5; Ovary, unknown; Stigma, entire. Corolla tube < lobes and ±hidden by calyx = L. chinense Mill. per Jepson Manual of California. Described from Coll. No. 2846, 6 Jul 2022.

- Kinney Run, With Cirsium canadensis, Ericameria nauseosa var. graveolens, and Bromus inermis. iNaturalist Observation 239862182. Tom Schweich 3368. 4 Sep 2024. ( Undist. ) . .

Physalis hederifolia A. Gray var. comata (Rydb.) Waterfall. Ivy-Leaved Ground Cherry. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm., glandular hairy throughout, without long multicellular hairs; Leaves, cauline, alternate, petiole 20 mm. + blade 36-45 mm. × 24 mm. wide, sinuate toothed; Calyx, 7-10 mm., becoming inflated enclosing fruit, 30 mm.; Corolla, yellow, 12-15 mm. dia.; Fruit, berry, 8-10 mm. dia. (Described from Coll. No. 1511, 22 July 2016).

- Deadman Gulch, More than 20 plants here, but otherwise very local. Small fragment, inadequate as a collections. Tom Schweich 2436. 23 Aug 2020. ( Golden ) . .

Solanum dulcamara L. Climbing Nightshade. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Foothills grassland north side of creek; foothills shrubland south side of creek; Also collected here: Epilobium ciliatum, E. hirsutum, Cirsium arvense, Dactylis glomerata, and Thinopyrum intermedium. Near the junction of Deadman Gulch and Kinney Run, growing in the creek bed, 2.28 km. south of the GNIS location of Golden. Tom Schweich 2409.1 31 Jul 2020. ( CDA0053772^‡ UCR ) .

- Kinney Run, Growing in culvert at Illinois Avenue Streambed of Deadman Gulch at Illinois Avenue, between US Highway 6 and the Fossil Trace Golf Club, 2.03 km. south southeast of the GNIS location of Golden. Tom Schweich 1961. 6 Jul 2018. ( COLO02348621^‡ JCOS s.n. KHD00069215^‡ OBI UC ) .

Verbenaceae

Verbena bracteata Lag. & Rodr. Large Bract Vervain. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 15 cm., erect; Leaves, cauline, opposite, petiole 5 mm. + blade 20 mm. × 10 mm. wide, pinnafitid, toothed; Bract, 11 mm. × 2.2 mm. wide, entire; Calyx, 4 mm. × 1.5 mm. wide; Corolla, lobes, #5 tube 4 mm. + throat 1 mm. + lobes 2 mm., limb, 2.5 mm., color blue; Introduced (Described from Coll. No. 1500.2, 13 July 2016). Usually seen as a prostrate trailside herb. However, occasionally growing in grasses and herbs, and forced to adopt an erect habit.

- Kinney Run, Tom Schweich 1633. 7/6/2018. .

Violaceae

Viola nuttallii Pursh. Nuttall's Violet. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Thin soil on rock outcrop, at base of Cercocarpus montanus. Tom Schweich 1588. 4/12/2018. 40 m. east of and above the Kinney Run Trail, in the sandstone of a hogback, at the base of Cercocarpus montanus, which itself was rooted in a fracture of the bedrock, 3.22 km. south of the GNIS location of Golden. Tom Schweich 1780. 12 Apr 2018. ( COLO02348126^‡ ) .

Vitaceae

Parthenocissus vitacea (Knerr) Hitchcock. Woodbine, thicket creeper. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, North-facing sllope of Deadman Gulch. Large leaves, but sterile and unidentifiable. Tom Schweich 2435. 23 Aug 2020. ( Golden ) .

Alliaceae

Allium × proliferum (Moench) Schrad. ex Willd. Garden Onion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Very likely a garden escapee, though a brief review of nearby gardens failed to find any cultivated specimens. In the streambed of Kinney Run, just north of Tripp Ranch, 2.68 km. south of the GNIS location of Golden. Tom Schweich 2415. 31 Jul 2020. ( CDA0053775^‡ COLO2434116^‡ CS KHD00072969^‡ ) . .

Allium textile A. Nelson & J.F. Macbr. Textile Onion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Notes: Transferred from USGS Herbarium, Denver, CO (2005). United States, Colorado, Jefferson, Foothills of Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Handsford T. Shacklette 5903. 27 Jun 1959. ( COLO529319^‡ ) .

- Kinney Run, Tom Schweich 1846. 5/15/2020. .

Cyperaceae

Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins. (Syn: C. pensylvanica Lam. ssp. heliophila (Mack.) W. A. Weber ) Sun Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 16 cm., prior year leaves to 23 cm.; Rhizome, 5-10(12) cm.; Culm, 11.5 cm. × 0.6 mm., ±triangular, but obscured by white striations at least when dry; Leaves, 12 cm. × 1.5 mm., ±flat, some folded ≤30°.; Inflorescence, multiple spikes, all approximate, 1-2 pistillate spike(s) below, 1 staminate spike above; Bracts, lowest, blade 8 mm., sheath 4.5 mm., papery; Pistillate spike, peduncled 1.0-1.3 mm., 9 mm., brown (not black); Staminate spike, terminal, 12-16 mm., ovoid (not cylindric), brown (not black); Scales, >perigynum body; Perigynum, pubescent on faces, margin ciliate; Achenes, unknown. Described from Coll. No. 1079, 23 April 2015, and Coll. No. 1568, 3 Apr 2017.

- Eagle Ridge, Tom Schweich 3039. 5/9/2023. . .

Schoenoplectus tabernaemontani (C.C.Gmel.) Palla. (Syn: Scirpus lacustris L. var. validus (Vahl) Kük. , Scirpus validus Vahl ) Softstem Bulrush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, In Deadman Gulch, also euphemistically called Kinney Run, along Illinois Street between US Highway 6 and the Fossil Trace Golf Club, 2.15 km. south southeast of the GNIS location of Golden. Tom Schweich 1962. 6 Jul 2018. ( COLO02348613^‡ KHD00068968^‡ OBI UC ) . .

Scirpus pallidus (Britt.) Fern. Cloaked Bulrush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, On a bank of Kinney Run, between the Cambria Lime Kiln and Tripp Ranch, 3.06 km. south southeast of the GNIS location of Golden. Tom Schweich 1965. 6 Jul 2018. ( COLO02348589^‡ KHD00068959^‡ OBI ) .

Juncaceae

Juncus articulatus L. Joint-Leaf Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Also collected here: Arctium minus, Cyclachaena xanthiifolia, and a horticultural Salvia. Along Deadman Gulch (Kinney Run), between US Highway 6 and Eagle Ridge Drive, on a bank of the creek, just upstream of a retention pond, 3.24 km. south of the GNIS location of Golden. Tom Schweich 2426. 17 Aug 2020. ( COLO2434041^‡ KHD00074290^‡ OBI186035^‡ ) .

Liliaceae

Calochortus gunnisonii S. Watson. Gunnison's Mariposa Lily. CalPhotos. Jepson eFlora. SEINet Taxon.

Melanthiaceae

Toxicoscordion paniculatum (Nutt.) Rydb. (Syn: Zigadenus paniculatus (Nutt.) S. Watson , Zigadenus paniculatus (Nutt.) S. Watson ) Foothill Death Camas. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Northwest slope of a small hill between Kinney Run and Deadman Gulch, 2.84 km. south of the GNIS location of Golden. Tom Schweich 1824. 16 May 2018. ( COLO2348266^‡ ) [ Original determination: Zigadenus paniculatus var. gramineus. ] Tom Schweich 1843. 5/15/2020. .

Orchidaceae

Goodyera oblongifolia Raf. Western Rattlesnake Plantain. CalPhotos. Jepson eFlora. SEINet Taxon.

- Deadman Gulch, Heavily timbered slopes. Deadman's Gulch: above Golden. Edmund R. Cross 529. 18 Aug 1912. ( RM446911^‡ ) .

Poaceae

Agropyron cristatum (L.) Gaertn. Crested Wheat Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Tom Schweich, with Suzy Stutzmann and Laurel Starr. 2966. 3/30/2023. . .

Andropogon gerardii Vitman. Big Bluestem. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 85 cm., clumped, rhizomes unknown; Leaves, blade and sheath differentiated; Sheath, 11 cm., open; Ligule, membraneous (though surrounded by hairs), 3 mm., auricles 0; Blade, soft, flat, 27 cm., hairy near ligule; Inflorescence, 80 mm., > leaves, 1-2 per stem, in 5-6 digitate branches, spikelets many; Rachis, soft bristles on margins and at nodes; Disarticulation at nodes of rachis; Spikelets in pairs, Sterile spikelet, 7 mm., pedicel 4.5 mm.; Fertile spikelet, Florets #1, Glumes, awns 0, ±equal, lower keeled, upper flattened and grooved; Lemma, 6 mm., membraneous, rolled, glabrous, tip 2-forked, awn, #1, 13 mm., bent, twisted, attached on back; Stamens, 3; Anthers, yellow; Ovary, glabrous; Stigma, feathery. (Described from Coll. No. 1060, 28 Aug 2014).

- Kinney Run, one clump at base of artificial slope. Tom Schweich 1990. 7/31/2020. . .

Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl. Tall Oatgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 115 cm., tufted, no rhizomes observed; Leaves, sheath, 100 mm., open, ligule, 2.5 mm., membranous, erose, blade, 30 mm. × 5 mm. wide, flat, barely scabrous; Inflorescence, 1 per culm, >leaves, panicle, 200 mm. × 40 mm. wide; Rachis, not extended, delicate; Spikelets, many, 8 mm. × 2.3 mm. wide + awn, similar, borne singly; Disarticulation, above the glumes; Glumes, very thin, translucent, lower, 5 mm., veins, #1, tip bifid, upper, 9 mm., =lowest floret, veins, #3, ±parallel, awns, absent; Florets, 2 per spikelet; Callus, straight hairs, 2.3 mm.; Lemma, 8 mm., =glumes, veins, #7, awn, #1, 14 mm., twisted, round, attached near base (2.3/8.0); Palea, 6 mm., membranous, margin, ciliate. (Described from Coll. No. 2442, 28 August 2020).

- Deadman Gulch, Riparian, also seen or collected nearby: Clematis ligusticifolia, Mirabilis nyctaginea, Crataegus succulenta, Epilobium hirsutum, and Symphyotrichum lanceolatum var. hesperium. On the edge of the streambed in Deadman Gulch (Kinney Run), above US Highway 6 and just below Eagle Ridge Drive, 3.43 km. south of the GNIS location of Golden. Tom Schweich 2442. 28 Aug 2020. ( KHD00073944^‡ ) . .

Bromus inermis Leyss. (Syn: B. inermis Leyss. ssp. inermis ) Smooth Brome. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass to 1 m., rhizomatous; Leaves, sheath, 8-11 cm., closed, ligule, <1 mm., membraneous, blade, 12-17 cm × 0.5 cm., flat, soft, with a distinguishing fold, usually described as an “M” or a “W” that is difficult to see when dry; Inflorescence, panicle, 15 cm. × 4 cm. wide, multiple 1° branches per node, mostly on one side of rachis; Spikelets, 1 per node on 1° and 2° panicle branches, 15-24 mm. × 5 mm. wide, laterally compressed, 2-6 florets per spikelet; Glumes, 2, keeled, glabrous, lower, 7-8 mm., veins 1 upper, 8-10 mm., <lowest floret; Rachilla, sparsely hairy on abaxial side, extended beyond uppermost floret or not; Callus, small, glabrous; Lemma, 11-12 mm., veins, 3, 5, 7, obvious, tip bifid, some awned; Awn (when present), 1.0-1.6 mm., arising near tip of lemma; Palea, 9 mm., veins ciliate. (Described from Coll. No. 1113, 26 May 2014, and Coll. No. 1219, 16 Jul 2015).

- Kinney Run, Tom Schweich 1635. 7/6/2018. . .

Dactylis glomerata L. Orchard Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 1.0-1.2 m., not rhizomatous, basal or subterranean internodes not swollen; Stem herbaceous; Leaf, Sheath open and closed observed, published descriptions are roughly equally divided as to whether the sheath is open or closed, Ligule membraneous, 5 mm.; Blade, differentiated from sheath, base not constricted, soft, 25 cm. × 0.7 cm. wide, not sharp-pointed; Auricle, rounded, <1 mm., generally described as 0; Infloresence exceeding leaves, 13 cm., panicle, well developed, erect, 1° branches open, branching 4° or 5°; Spikelets not enclosed in a bur-like involucre, not subtended by bristles or long silky hairs, similar throughout plant, all on one side of rachis, crowded in dense clusters, on 2°-4° panicle branches ~~1 per node,~~ axis few hairy, some spikelets appear to be infertile; Glumes, 2 < lowest floret, lower, 3.5 mm, smaller and thinner than upper, 6 mm., keeled, glabrous to ciliate on keel, else sparsely hairy; Florets not modified into bulblets 4+ per spikelet , have feathery stigma-like material but no ovary (immature?), uppermost vestigal floret not club-shaped rudiment (as seen in Melica); Lemma lowest largest, 5 mm., reduced above, keeled, line of hairs on keel, 5 veins, tip forked, awn 1.0-1.5 mm.; Palea light green with 2 veins forked at tip. Described from Collection No. 815, 9 May 2012, Alameda County, CA and Coll. No. 1111, 26 May 2015, Jefferson County, CO.

- Deadman Gulch, Most culms long past maturity. Also collected here: Epilobium hirsutum, Solanum dulcamara, and Cirsium arvense. Near the junction of Deadman Gulch and Kinney Run, north side of creek, 2.28 km. south of the GNIS location of Golden Tom Schweich 2407.1 31 Jul 2020. ( COLO2433985^‡ ) .

- Kinney Run, Tom Schweich 1625. 7/6/2018. . .

Elymus elymoides (Raf.) Swezey. (Syn: E. longifolius (J. G. Sm.) Gould , Sitanion hystrix (Nutt.) J. G. Sm. ) Squirreltail Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass to 50 cm., clumped; Inflorescence, bilateral spike; Rachis, internodes, 6.4 mm., breaking apart when mature; Spikelets, 2 per node; Glumes, #2, subulate, 62-65 mm.; Florets, #3, lowest 2 fertile, upper sterile; Lemma, 10 mm. + awn 50 mm., veins, #5, converging; Palea, 9 mm., 1 of 2 veins slightly extended as bristle. Variety brevifolius if infraspecific names are to be applied. Described from Coll. No. 1717, 28 July 2017.

Eriocoma scribneri (Vasey) Romasch. (Syn: Achnatherum scribneri (Vasey) Barkworth , Stipa scribneri Vasey ) CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, Under the overhang of sandstone cliff. Coordinates estimated with GoogleEarth. Along the cliffs on the east side of Kinney Run, south of Tripp Ranch, and north of Heritage Dells Park, 4.7 km. south of the GNIS location of Golden. Tom Schweich, with Susan Panjabi and Zachariah Wilson 2418. 11 Aug 2020. ( KHD00073941^‡ ) . .

Hesperostipa comata (Trin. & Rupr.) Barkworth. (Syn: Stipa comata Trin. & Rupr. ) Needle and Thread. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, 50 cm., clumped, nonrhizomatous; Roots, fibrous; Stem, herbaceous; Leaves, blade and sheath differentiated; Sheath, 100-120 mm., open ≥½, glabrous; Ligule, membranous, length 3.7 mm., lacerate into 2 equal parts, auricles 0; Blade, 60 mm., involute, glabrous; Inflorescence, 1 per culm, >leaves, panicle, 200 mm. × 30 mm. wide; Rachis, not extended, somewhat scabrous throughout; Spikelets, many, similar, borne singly; Compression, unremarkable; Disarticulation, above the glumes; Glumes, lower, 23-34 mm., veins #3, upper, 23-29 mm., veins #5, awl-shaped, rounded, membranous, ±equal, tip, very narrow, not awned; Florets, 1 per spikelet; Callus, 4.5-50 mm., sharp, straight hairs 1.0-1.5 mm., color tan; Lemma, 9.5-10.0 mm., rolled, indurate, straight hairy 0.5 mm., color white-tan, veins #3(?), awns, #1, 125-160 mm., twisted and short straight hairy proximal 45 mm., bent, scabrous distally; Palea, 9 mm., ±lemma, few white hairs on mid-vein; Stamens, #3; Anthers, 6.5 mm. (Described from Coll. No. 1890, 28 May 2018).

- Kinney Run, Tom Schweich 1626. 7/6/2018. . .

Nassella viridula (Trin.) Barkworth. (Syn: Stipa viridula Trin. ) Green Needlegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, 70-100 cm., clumped, non-rhizomatous; Stem, herbaceous; Leaves, cauline, sheath, 17 mm., ligule, 3 mm., membraneous, collar with few hairs at sides, blade, to 30 cm., convolute; Inflorescence, 1 per culm, panicle, 20-25 cm.; Rachis, lightly scabrous, not extended beyond upper spikelet; Compression, unremarkable; Spikelets, 1 per node; Florets, 1 per spikelet, bisexual; Glumes, 2, 8-9 mm., ±equal, rounded, membraneous, colorless, exc. 3 green veins, tip, short (2 mm.) hair-like awn; Disarticulation, above the glumes, Florets, 1 per spikelet; Callus, short; Lemma, 5-6 mm. × 1.2 mm. wide, <glumes, green, hairy, <1 mm., indurate, enclosing grain, awns, #1, 20-25 mm., twisted, bent, short hairy (±0.2 mm.); Palea, 1.5-2.0 mm., <lemma, membraneous, glabrous; Stamens, #3. Described from Colls. No. 1146, 1652, and 1698.

- Eagle Ridge, On mesa slope in foothills. Foothills of the Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5878. 27 Jun 1959. ( COLO529082^‡ ) .

- Eagle Ridge, Tract A, Common in this field, drier patch dominated by Artemisia ludoviciana, stiff clay soil. City-owned parcel north of “Eagle Ridge” between CSM Survey Field and US Highway 6, about 70 m. northwest of the Kinney Run Trail, 2.37 km. (geodesic) south of the GNIS location of Golden. Tom Schweich 2979. 19 Jun 2023. ( Golden ) .

- Kinney Run, Tom Schweich 1630. 7/6/2018. . .

Schedonnardus paniculatus (Nutt.) Trel. (=Muhlenbergia paniculata (Nutt.) R. M. Peterson) Tumblegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

- Eagle Ridge, On mesa slope in foothills. Transferred from USGS Herbarium, Denver, CO (2005). Foothills of Front Range, at junction of US 6 and road to Morrison, about 1 mile east of Golden. Hansford T. Shacklette 5879. 27 Jun 1959. ( COLO529077^‡ ) . .

Thinopyrum intermedium (Host) Barkworth & D.R. Dewey. (Syn: Elytrigia intermedia (Host) Nevski , Elymus hispidus (Opiz) Melderis ) Intermediate Wheatgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to >1 m., rhizomatous; Leaves, sheath, open, 19 cm., outer margin ciliate proximally, ligules, membraneous, 1 mm., auricles, 0, blade, 24 cm., involute; Inflorescence, 2-sided spike; Spikelets, 1 per node, sessile, ascending; Glumes, ±equal, 7.5-8.0 mm., stiff, veins 5, tip offset mucronate, awn 0, sparsely hairy on veins and margins; Florets per spikelet, 6; Lemma, 9 mm., stiff, veins 5, tip rudimentary awn; Palea, 8.5 mm., robust, fused to grain. Described from Coll. No. 1272, 20 July 2015.

- Deadman Gulch, Foothills grassland north side of creek; foothills shrubland south side of creek; Also collected here: Solanum dulcamara, Epilobium ciliatum, E. hisutum, Cirsium arvense, and Dactylis glomerata. Near the junction of Deadman Gulch and Kinney Run, north bank of creek, 2.27 km. south of the GNIS location of Golden Tom Schweich 2408. 31 Jul 2020. ( COLO2434009^‡ CS OBI186049^‡ REGIS ) .

Smilacaceae

Smilax lasioneuron Hook. Blue Ridge Carrionflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, with Susan Panjabi, Jessica Smith, and Zac Wilson. Tom Schweich 1981. 7/24/2020. .

Typhaceae

Typha latifolia L. Cattail. CalPhotos. Jepson eFlora. SEINet Taxon.

- Kinney Run, wet ground, small spring or seep. Tom Schweich 1987. 7/31/2020. .

Total number of taxa:	139
Native Taxa: (serif, italic, bold)	100
Exotic Taxa: (sans-serif, italic)	38
Nativity Undetermined: (default font, italic)	1
Listed Weeds: Identified as Weed	15

Notes:

† -- Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
‡ -- Southwest Environmental Information Network, SEINet. 2009-2014. http//:swbiodiversity.org/seinet/index.php. Accessed from July 2009 to September 2014.

Locations Included in This Area

Deadman Gulch.

Eagle Ridge.

Eagle Ridge, Tract A.

Kinney Run.

Bibliography

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Date and time this article was prepared: 11/3/2024 7:03:11 PM.