Area List, North Table Mountain, Jefferson County, United States.

Eastern Mojave Vegetation

Detailed Area Plant List for North Table Mountain, 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 North Table Mountain, Jefferson County, United States.

Dryopteridaceae

Cystopteris fragilis (L.) Bernh. Brittle Bladderfern. CalPhotos. Jepson eFlora. SEINet Taxon.

Plants, terrestrial, to 35 cm.; Fronds, petiole scales very sparse, widest at middle, bipinnately compound + lobed, abaxial surface glabrous, margins flat; Sori, between midrib and leaflet margin, round, indusium hood-like at base then divided into filiform segments. (Described from Coll. No. 2890, 20 July 2022.)

- North Table Mountain Park, East-facing rock crevices. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1447.1 22 Jun 2016. ( JCOS s.n. ) . .

Woodsia oregana D.C. Eaton ssp. cathcartiana (B.L. Rob.) Windham. Rocky Mountain Woodsia. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, as Woodsia oregana 1389. 1389. White, Sally, and Loraine Yeatts, 1994 .

- North Table Mountain Park, Under an east-facing rock overhang. Southeastern portion of North Table Mountain, near the North Table Loop, where it passes through the top basalt rim of the mountain, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1343. 12 May 2016. ( JCOS s.n. KHD00063429^‡ ) Western slope of North Table Mountain, in boulders of the break in slope formed by the lowest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1734. 15 Aug 2017. ( KHD00065322^‡ ) East-facing rock crevices. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1447. 22 Jun 2016. .

Equisetaceae

Equisetum hyemale L. ssp. affine (Engelm.) Calder & Roy L.Taylor. Tall Scouring Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Hippochaete h. 1063. 1063. Zeise, Larry Steven, 1976 .

Selaginellaceae

Selaginella densa Rydb. Rocky Mountain Spikemoss. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1124. 1124. Zeise, Larry Steven, 1976 1193. 1193. Kilburn, Paul D., and Sally L. White, 1992 . .

Selaginella underwoodii Hieron. Underwood's Spikemoss. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1194. 1194. Kilburn, Paul D., and Sally L. White, 1992 .

Cupressaceae

Juniperus scopulorum Sarg. (Syn: Sabina scopulorum Sarg.(Sarg.) Rydb. ) Rocky Mountain Juniper. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1067. 1067. Zeise, Larry Steven, 1976 1364. 1364. Kilburn, Paul D., and Sally L. White, 1992 .

Pinaceae

Pinus ponderosa Laws. Ponderosa Pine. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1096. 1096. Zeise, Larry Steven, 1976 1365. 1365. Kilburn, Paul D., and Sally L. White, 1992 1384. 1384. White, Sally, and Loraine Yeatts, 1994 .

- North Table Mountain Park, Tom Schweich 1476. 7/13/2016. . .

Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco. (Syn: Pseudotsuga menziesii (Mirb.) Franco var. glauca (Mayr) Franco ) Douglas Fir. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1108. 1108. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, In brush on moderate northwest slope, only such tree seen. North slope of North Table Mountain, 30 m. east of and above the Mesa Top Trail (radio tower access road), 3.4 km. north of the GNIS location of Golden. Tom Schweich 1502. 13 Jul 2016. ( JCOS s.n. KHD00063565^‡ ) .

Amaranthaceae

Amaranthus . Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Golden, Table Mountain Ranch at NW corner of North Table Mountain. Near main entrance road. 13N 0481966E 4404968N. Janet L. Wingate 1309. 18 Oct 1981. ( KHD6692^‡ ) . .

Amaranthus arenicola I. M. Johnst. Sandhill Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Golden, Table Mountain Ranch at NW corner of North Table Mountain. Near main entrance road. 13N 0481966E 4404968N Janet L. Wingate 1188. 13 Sep 1981. ( COLO00005405^‡ KHD6691^‡ ) .

Anacardiaceae

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

- North Table Mountain, as R. trilobata 1114. 1114. Zeise, Larry Steven, 1976 as R. trilobata 1347. 1347. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1369. 24 May 2016. ( JCOS s.n. KHD00063919^‡ UCR277973^‡ ) Near top of small mound, also collected here: Opuntia macrorhiza and Thelesperma megapotamicum. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2139. 11 Jul 2019. ( JCOS s.n. KHD74277^‡ ) . .

Toxicodendron rydbergii (Small ex Rydb.) Greene. Western Poison Ivy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1144. 1144. Zeise, Larry Steven, 1976 1354. 1354. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1477. 7/22/2016. .

Apiaceae

Aletes acaulis (Torr.) J.M. Coult. & Rose. Stemless Indian Parsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1197. 1197. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Collectors number is 92-66. North Table Mountain. TRS: T3S R70W S22 R.J. Rondeau, with C.A. Pague, M.A. Duff. 9266. 16 Jun 1992. ( COLO00828079^‡ ) Edges of cliffs. Southwest rim of North Table Mountain, 1.55 km north of the GNIS location of Golden. Tom Schweich 1321. 4 May 2016. ( JCOS s.n. KHD00063815^‡ UCR277964^‡ ) Base of northwest-facing wall of quarry, with Hydrophyllum fendleri, Penstemon virens, Prunus virginiana, Brickellia california, and Physaria vitulifera. Top of North Table Mountain, in the main basalt quarry near the west edge of the mesa, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1925. 8 Jun 2018. ( ? JCOS s.n. KHD00069136^‡ OBI170744^‡ ) . .

Conium maculatum L. Common Poison Hemlock. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1040. 1040. Zeise, Larry Steven, 1976 1221. 1221. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, 1375. 1375. White, Sally, and Loraine Yeatts, 1994 . .

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).

- North Table Mountain, 1256. 1256. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Widespread on mesa-top lava flow derived soils and colluvial soils of upper and lower slopes. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. Tom Schweich 1322. 4 May 2016. ( JCOS s.n. KHD00063812^‡ OBI83175^‡ UCR278795^‡ ) .

Apocynaceae

Apocynum 莔loribundum 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.)

- North Table Mountain Park, Western side of North Table Mountain, in roadside ditch along road to City of Golden water tank, 2.8 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1442. 22 Jun 2016. ( JCOS s.n. KHD00063840^‡ OBI83328^‡ UCR278005^‡ ) . .

Apocynum cannabinum L. Indian Hemp. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1006. 1006. Zeise, Larry Steven, 1976 .

Asclepiadaceae

Asclepias pumila (A. Gray) Vail. Plains Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1014. 1014. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Tom Schweich 1482. 8/18/2016. Growing in low grasses and forbs. Lower north slopes of North Table Mountain, 0.79 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.65 km. north northeast of the GNIS location of Golden. Tom Schweich 1508. 22 Jul 2016. ( EIU JCOS s.n. KHD00063944^‡ UC ) Beside the Rimrock Trail near the top of North Table Mountain. Tom Schweich, with Cindy Trujillo 2390. 8/13/2021. . .

Asclepias speciosa Torr. Showy Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1015. 1015. Zeise, Larry Steven, 1976 1205. 1205. Kilburn, Paul D., and Sally L. White, 1992 . .

Asclepias viridiflora Raf. Green Comet Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1016. 1016. Zeise, Larry Steven, 1976 1206. 1206. Kilburn, Paul D., and Sally L. White, 1992 Lower southwest slopes, adjacent to trail. Tom Schweich, with Cindy Trujillo 2157. 6/18/2021. .

- North Table Mountain Park, Several plants trailside, northeast North Table Mountain. Tom Schweich 1481. 7/29/2016. .

Asteraceae

Achillea millefolium L. (Syn: A. lanulosa Nutt. , A. m. L. var. alpicola (Rydb.) Garrett , A. m. L. var. lanulosa (Nutt.) Piper , A. m. L. var. occidentalis DC. ) Common Yarrow. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb to 50 cm.;; Leaves alternate, tendrils absent, finely dissected, aromatic when fresh; Inflorescence, heads enclosed by an involucre, in flat-topped clusters; Phyllaries in 2+ series; Receptacles bearing scale-like bracts (paleate); Perianth in 2 or more whorls, parts in 5s; Phyllaries in 2+ series, not all subtending ray flowers; Flowers open, bisexual, two kinds, some with strap-shaped corollas; Petals fused into a tube; Ray flowers, white, lobe ovate; Disc flowers, white; Stamens = in number to corolla lobes; Ovary inferior. Pistils, 1 per flower (Described from Coll. No. 482, 30 Nov 2011, and Coll. No. 1023, 24 Jul 2013).

- North Table Mountain, as A. lanulosa 994. 994. Zeise, Larry Steven, 1976 as A. lanulosa 1195. 1195. Kilburn, Paul D., and Sally L. White, 1992 .

Acroptilon repens (L.) DC. Russian Knapweed. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Colony growing in open area near horse corals. Table Mountain Ranch, Golden, at NW base of Table Mountain. 13 0481744E 4405299N. Janet L. Wingate 8876. 4 Aug 2006. ( COLO00883884^‡ GREE9066^‡ KHD13845^‡ KHD56478^‡ ) . .

Agoseris glauca (Pursh) Raf. (Syn: Troximon glaucum Pursh ) Pale Goat-Chicory. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1196. 1196. Kilburn, Paul D., and Sally L. White, 1992 . .

Ambrosia artemisiifolia L. (Syn: A. artemisiifolia L. var. elatior (L.) Descourt. ) Annual Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1002. 1002. Zeise, Larry Steven, 1976 . .

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).

- North Table Mountain, 1200. 1200. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, South slopes of North Table Mountain, just off the Golden Cliffs Trail, and just a little below the basalt cliffs, 1.5 km north northeast of the GNIS location of Golden. Tom Schweich 1062. 29 Aug 2014. ( CAS UC2045777^‡ ) Rocky slope with little soil development near rim of mesa. Near the south rim of North Table Mountain, accessed by way of the Golden Cliffs Trail, 1.5 km north northwest of the GNIS location of Golden. Tom Schweich 1068. 8 Oct 2014. ( JCOS s.n. OBI82138^‡ UCR266095^‡ ) . .

Ambrosia tomentosa Nutt. Skeleton-Leaf Bursage. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1003. 1003. Zeise, Larry Steven, 1976 . .

Ambrosia trifida L. (Syn: A. trifida L. var. trifida ) Giant Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1309. 1309. Kilburn, Paul D., and Sally L. White, 1992 . .

Anaphalis margaritacea (L.) Bentham & Hooker. Western Pearly Everlasting. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, North Table Mountain. Mark Duff 178. 16 Jun 1992. ( COLO00032193^‡ ) . .

Antennaria parvifolia Nutt. Small-Leaf Pussytoes. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 10 cm., stoloniferous; Stem, tomentose; Leaves, basal and cauline, basal, petiole, gradually expanding into blade, blade, 16 mm. × 6.7 mm. wide, oblanceolate, entire, glandular, tomentose, tips, pointed, cauline, 10 mm. × 2 mm. wide, linear; Inflorescence, heads enclosed by an involucre, #3 per stem, not showy; Involucre, 7 mm. × 4.5 mm. wide, cylindric; Phyllaries, 5+ series, 4 mm. × 2 mm. wide to 8 mm. × 1 mm. wide, green proximally to white (pinkish) distally, tomentose, margins, flat, scarious, tips, rounded; Receptacle, epaleate; Flowers, of 1 kind; Disk flowers, many, 6.5 mm., white; Pappus, many, well-developed, bristles, 8 mm., ±equal; Cypsela, 0.8 mm. × 0.3 mm. wide, brown, glabrous. (Described from Coll. No. 1909, 31 May 2018.)

- North Table Mountain, 1201. 1201. Kilburn, Paul D., and Sally L. White, 1992 . .

Antennaria rosea Greene. Rosy Pussytoes. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 9 cm., stoloniferous 4-5 cm., forming loose mats in wet muddy soil, all sixteen plants collected pistillate (gynoecious?); Leaves, simple, white tomentose both sides, basal, 35 mm. × 9 mm wide, oblanceolate, cauline, 11-13 mm., linear; Inflorescence, >> basal leaves; Involucre, 5.5-7.0 mm.; Bracts (phyllaries), 5.0-6-5 mm. × 1.1-0.7 mm. wide, green at base, purplish band in middle, tips, white, scarious. (Described from Coll. No. 1083, 25 April 2015).

- North Table Mountain, 1005. 1005. Zeise, Larry Steven, 1976 . .

Arnica fulgens Pursh. Shining Leopardbane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb of wetlands, moist, or somehow equible areas, to 35 cm., glandular hairy throughout; Leaves, mostly basal and few cauline, basal, axils with 5 mm. brown wavy hair, petiole 50-70 mm. + blade 60-100 mm. × 12-30 mm. wide, 3.3-5 × longer than wide, lanceolate, tip obtuse, cauline, opposite, sessile, ±2 pair, much reduced; Inflorescence, showy, single heads on peduncle to 80 mm., flowers of two kinds; Involucre, 13-15 mm. × 22-30 mm. wide; Phyllaries, 2 ±equal series, 11-14 mm.× 3-3.5 mm. wide, margins, flat, tips, obtuse green with dark tips glandular-hairy abaxially; Receptacle epaleate; Rays, #12, fertile, tube 3-5 mm. + blade 16-19 mm. × 7-7.5 mm. wide = 19-24 mm., corolla yellow; Disc flowers, tube 7-7.5 mm. + lobes ≤1 mm. = 8-8.5 mm.; Pappus, bristles, 9 mm., white, barbelate; Anther, yellow; Achene, 5 mm., short hairy. Described from Coll. Nos. 1119, 1371, and 1871. Subtribe Arnicinae is a sister subtribe to Madiinae (tarweeds) and Hulseinae, which contains both Hulsea and Eatonella, both common in the Mono Lake basin. Described by Pursh in Fl. Am. Sept. 2: 527 “On the banks of the Missouri,” but this is not a Lewis & Clark collection. Perhaps it is a Nuttall collection from 1810. Holotype: BM?, Isotype: PH.

- North Table Mountain, 1203. 1203. Kilburn, Paul D., and Sally L. White, 1992 . .

Artemisia campestris L. Field Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., longer lived than biennial; Stem, 4± per caudex, reddish; Leaves, basal mostly withered, cauline, 8 mm. × 0.6 mm. wide, narrowly oblanceolate, tomentose; Inflorescence, 130 mm. × 20 mm. wide; Heads, many, 2 mm. × 2 mm. wide; Phyllaries, 2+ series, 1.5 mm. × 1 mm. wide, green to scarious; Receptacle, naked. Described fromColl. No. 1767, 1 Sep 2017. Note: It is important to note presence or absence of a basal rosette when collecting.

- North Table Mountain, 1204. 1204. Kilburn, Paul D., and Sally L. White, 1992 . .

Artemisia dracunculus L. (Syn: Oligosporus dracunculus (L.) Poljakov ssp. glaucis (Pall. ex Willd.) A. L饘e & D. L饘e ) Tarragon, Dragon Wort. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1010. 1010. Zeise, Larry Steven, 1976 Uppermost southwest slopes of North Table Mountain, just below the basalt flow capping the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich 1554. 1 Sep 2016. ( EIU JCOS s.n. KHD00063997^‡ OBI83374^‡ UC ) . .

Artemisia filifolia Torr. (Syn: Oligosporus filifolius (Torrey) Poljakov ) Sand Sage, Old-Man Sagebrush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1011. 1011. Zeise, Larry Steven, 1976 . .

Artemisia frigida Willd. Prairie Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm., woody at base; Stems many; Leaves alternate, 9 mm., pinnately dissected into 7 parts, silvery hairy; Inflorescence raceme-like, indeterminate, heads 1-3 in axils; Heads have only disk flowers, all alike; Involucre of hairy phyllaries; Phyllaries in 2 series, hairy, not gummy or with tips recurved; Receptacle hairy, not chaffy or bristly; Flowers fertile; Pappus absent; (Described from Coll. No. 1067, 8 Oct 2014).

- North Table Mountain, 1012. 1012. Zeise, Larry Steven, 1976 1333. 1333. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Rocky slope with little soil development near rim of mesa, growing with Brickellia. Near the south rim of North Table Mountain, accessed by way of the Golden Cliffs Trail, 1.5 km north northeast of the GNIS location of Golden. Tom Schweich 1067. 9 Oct 2014. ( CAS UC2045775^‡ UCR266094^‡ ) . .

Artemisia ludoviciana Nutt. Silver Wormwood. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1013. 1013. Zeise, Larry Steven, 1976 1334. 1334. Kilburn, Paul D., and Sally L. White, 1992 . .

Brickellia californica (Torrey & A. Gray) A. Gray. California Brickelbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1338. 1338. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1449. 7/30/2015. Growing in cracks of cliffs and talus just below cliffs. Tom Schweich 1460. 10/12/2015. Near top of south side of North Table Mountain, at the base of the lower set of basalt cliffs, 220 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1546. 1 Sep 2016. ( COLO02348654^‡ EIU JCOS s.n. KHD00063965^‡ OBI83343^‡ UC ) iNaturalist Observation 185074172. Tom Schweich 3461. 9/26/2023. . .

Brickellia eupatorioides (L.) Shinners. False Boneset. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, as B. rosmarinifolius (sic) 1215. 1215. Kilburn, Paul D., and Sally L. White, 1992 iNaturalist Observation 185066759. Tom Schweich 3459. 9/26/2023. .

- North Table Mountain Park, Common in bed of ephemeral stream, in an upper portion of a watercourse draining southeast to Clear Creek through an unamed canyon. Many Eriogonum alatum at this location. Top of North Table Mountain, adjacent to the North Table Loop, 285 m. north of the USBR monument designated “North Table,” 1.8 km. north of the GNIS location of Golden. Tom Schweich 1553. 1 Sep 2016. ( JCOS s.n. KHD00063999^‡ ) . .

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.)

- North Table Mountain, as ssp. macrolepis 1311. 1311. Kilburn, Paul D., and Sally L. White, 1992 . .

Centaurea diffusa Lam. (Syn: Acosta diffusa (Lam.) Soja' k ) Diffuse Knapweed. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Biennial/Perennial herb, to 50 cm.; Leaves, cauline, alternate, 30 mm. × 12 mm. wide, pinnately lobed, much reduced and entire above, spine-tipped, margins not spiny; Inflorescence, heads borne singly, flowers of one kind; Involucre, 10 mm.; Phyllaries, 4+ series, graduated, 3.5-10.0 mm., all spine tipped, outer and middle with marginal fringe spines; Receptacle, flat, epaleate, bristly; Disk flowers, inner bisexual, Corolla, tube 7.5 mm. + lobes 3 mm., white; Pappus, 0, or very thin ring of scales. Described from Coll. No. 1233, 20 Jul 2015.

- North Table Mountain Park, Colorado Noxious Weed List B species. Northern portion of North Table Mountain, 205 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1233. 20 Jul 2015. ( CDA0050040^‡ JCOS s.n. KHD 00062051^‡ UC UCR267458^‡ ) . .

Cichorium intybus L. Common Chicory. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1034. 1034. Zeise, Larry Steven, 1976 . .

Cirsium undulatum (Nutt.) Spreng. Wavy Leaved Thistle. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1036. 1036. Zeise, Larry Steven, 1976 1218. 1218. Kilburn, Paul D., and Sally L. White, 1992 . .

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).

- North Table Mountain, 1222. 1222. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain Park, On the Mesa Top Trail, just below the rim of North Table Mountain. Tom Schweich, with Cindy Trujillo 2388. 8/13/2021. . .

Dyssodia papposa (Vent.) Hitchc. Fetid Marigold. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, On edge of private horse pasture. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1540. 16 Aug 2016. ( KHD00065750^‡ ) . .

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

- North Table Mountain, as Chrysothamnus n. 1033. 1033. Zeise, Larry Steven, 1976 as Chrysothamnus n. 1340. 1340. Kilburn, Paul D., and Sally L. White, 1992 . .

Erigeron divergens Torr. & A. Gray. Spreading Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1050. 1050. Zeise, Larry Steven, 1976 1315. 1315. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, In thin soils or cracks of basalt caprock, near the edge of prairie dog town. Top of North Table Mountain, along an old road and former powerline headed in the general direction of the radio station, 2.6 km. north of the GNIS location of Golden Tom Schweich 1489. 13 Jul 2016. ( CS JCOS s.n. KHD00063464^‡ UC ) Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, about half-way north from North Table Loop in the direction of Ramstetter Reservoir, 3.85 km. north of the GNIS location of Golden. Tom Schweich 1879. 23 May 2018. ( CAS JCOS s.n. KHD00069211^‡ OBI ) . .

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).

- North Table Mountain Park, Expected. Tom Schweich 1570. 6/12/2017. . .

Erigeron tracyi Greene. (Syn: E. cinereus A. Gray , E. colomexicanus A. Nelson , E. divergens Torrey & A. Gray var. cinereus A. Gray ) Running Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 20-25 cm., caudex simple (not stout) non-rhizomatous, hairy throughout, with hairs 0.2-0.4 mm. spreading in all directions, glandular at high magnification; Stem, some with prior year's branches assumed to have been stoloniferous; Leaves, basal and cauline, basal, petiole, to 26 mm. + blade oblanceolate 8-12-20 mm. × 2-4-5.5 mm. wide, short hairy and glandular (especially visible at high magnification), margin entire, tip acute, some withered at flowering time, cauline, ±sessile, reduced or not well-developed above, but up to 32 mm. × 1.8 mm. wide; Peduncle, spreading to descending multicellular hairs with clear crosswalls, slightly pustular (maybe) or glandular at high magnification; Phyllaries, in 2+ ±equal series, but not distinctly imbricate, 3-4.5 mm. × 0.7 mm. wide, lanceolate, green center, light margins, spreading hairy; Receptacle epaleate; Flowers, 2 kinds; Ray flowers, cypsela 0.5 mm. + tube 2 mm. + ligule 4 mm. × 0.3-0.6 mm. wide = 6.5-7 mm. × 0.8 mm. wide, fertile, tip rounded, white & pink fading purple; Disk flowers, yellow; Pappus, ray and disk alike, inner, few capillary bristles, 4 mm., outer, short crown of scales, double pappus not particularly disgnostic in Erigeron. The most common form of E. tracyi is perhaps (speculative) a stabilized, apomictic hybrid between E. flagellaris and E. divergens (FNANM). Described from Coll. No. 1133, 9 Jun 2015 and Coll. No. 1337, 11 May 2016.

- North Table Mountain, Signed as Jefferson County Open Space, parcel owned by City of Golden. Lower south slopes of North Table Mountain, 100 m. east of the end of Peery Parkway, 1.2 km. north northeast of the GNIS location of Golden. Tom Schweich 1337. 11 May 2016. ( CAS JCOS s.n. KHD00063981^‡ UCR278798^‡ ) .

- North Table Mountain Park, Very thin soil on volcanic caprock of mesa. Mesa top, southeast portion of North Table Mountain, 3.3 km northeast of the GNIS location of Golden. Tom Schweich 1133. 9 Jun 2015. ( JCOS s.n. KHD56940^‡ UC UCR265984^‡ ) . .

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.

- North Table Mountain, 1055. 1055. Zeise, Larry Steven, 1976 1236. 1236. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, 1059. 1059. Zeise, Larry Steven, 1976 1242. 1242. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Gentle grassy slope above oldest lava flow. Northwest corner of North Table Mountain, lower elevation lobe of the mesa, formed on top of the oldest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1737. 15 Aug 2017. ( JCOS s.n. KHD00065318^‡ 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.)

- North Table Mountain, 1060. 1060. Zeise, Larry Steven, 1976 1336. 1336. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed grasses, subshrubs, and forbs. West-facing slope on the north side of North Table Mountain, 0.92 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1543. 18 Aug 2016. ( EIU JCOS s.n. KHD00063969^‡ ) Top of North Table Mountain, near southern edge, 360 m. east of the USBR monument designated “North Table,” 1.6 km. north northeast of the GNIS location of Golden. Tom Schweich 1550. 1 Sep 2016. ( COLO02348456^‡ CS JCOS s.n. KHD00064002^‡ ) . .

Helianthus annuus L. Common Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1318. 1318. Kilburn, Paul D., and Sally L. White, 1992 . .

Helianthus pauciflorus Nutt. ssp. subrhomboideus (Rydb.) O. Spring & E. Schilling. (Syn: Helianthus rigidus (Cass.) Desf. ssp. subrhomboideus (Rydb.) Heiser , Helianthus subrhomboideus Rydb. ) Stiff Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

[Description pending verification of determination for Coll. No. 1260. -- 27 Dec 2015] Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; cypsela, 3.3 mm., compressed quadrangular. Described from Coll. No. 1260, 26 Jul 2015.

- North Table Mountain Park, Also at this location: Thelesperma megapotamicum, Eriogonum alatum, and E. effusum. Near the top of several small hills (toe of landslide?) on the lower north slope of North Table Mountain, 0.7 km. southeast of the Mesa Spur Trailhead on 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1507. 22 Jul 2016. ( COLO2299709^‡ CS EIU028457^‡ JCOS s.n. KHD00063471^‡ ) . .

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.

- North Table Mountain, 1061. 1061. Zeise, Larry Steven, 1976 1243. 1243. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Middle north slopes of North Table Mountain, above the North Table Loop trail, 3.9 km north northeast of the GNIS location of Golden. Tom Schweich 1210. 13 Jul 2015. ( JCOS s.n. KHD00062161^‡ UCR267451^‡ ) South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated “North Table,” 1.44 km. north northeast of the GNIS location of Golden. Tom Schweich 1523. 5 Aug 2016. ( COLO02347920^‡ JCOS s.n. KHD00063462^‡ UC ) . .

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.

- North Table Mountain, 1062. 1062. Zeise, Larry Steven, 1976 1244. 1244. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower north slopes of North Table Mountain, between the Tablerock Trail and North Table Loop, 4.0 km north northeast of the GNIS location of Golden. Tom Schweich 1209. 13 Jul 2015. ( CS JCOS s.n. KHD00062155^‡ OBI83171^‡ ) Mixed grasses and forbs upslope of North Table Loop. Lower north slopes of North Table Mountain, 1.02 km. southwest of the Mesa Spur trailhead on 58th Avenue, 4.66 km. north northeast of the GNIS location of Golden. Tom Schweich 1521. 29 Jul 2016. ( EIU028181^‡ JCOS s.n. KHD00063461^‡ OBI83315^‡ ) . .

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.)

- North Table Mountain Park, Lower slopes on the west side of North Table Mountain, along side of North Table Loop, just a few meters north of the access road to the trailhead, 3.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1504. 13 Jul 2016. ( EIU028681^‡ JCOS s.n. KHD00063468^‡ OBI83338^‡ ) . .

Lactuca serriola L. Prickly Lettuce. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual herb, Stems erect, Leaves basal 0 at flowering, cauline coarsely lobed, margins prickly-toothed, Fruit beak slender, many-ribbed, ~8 adaxial, ~5 abaxial (Described from Collection No. 911, 4 Oct 2012).

- North Table Mountain, 1069. 1069. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Growing in cracks in the basalt of the upper flow, plentiful in rocks and in soil below. Introduced. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1548. 1 Sep 2016. ( CS EIU JCOS s.n. KHD00064004^‡ ) . .

Liatris punctata Hook. Dotted Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 32 cm.; Leaves, cauline, alternate, 78 mm. × 3.5 mm. wide, gradually reduced above, linear, glandular punctate, margins, entire, revolute, sparsely hairy; Inflorescence, single heads in axils on short pedicels; Involucre, 16 mm. × 7 mm. wide, ±cylindrical; Phyllaries, in 2+ series, inbricate, 14 mm. × 3.8 mm. wide, glandular-punctate abaxially distally, margin, ciliate, scarious, tip acute; Receptacle, epaleate; Flowers, one kind; Disk flowers; Corolla, tube white 8 mm. + lobes purple 2.5 mm.; Pappus, bristles, one series, 10 mm., plumose; Cypsela, 7 mm., hairy. Described from Coll. No. 1264, 29 Jul 2015.

- North Table Mountain, 1072. 1072. Zeise, Larry Steven, 1976 1252. 1252. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed grasses and forbs. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1536. 18 Aug 2016. ( COLO02348639^‡ CS EIU JCOS s.n. KHD00063460^‡ OBI83314^‡ ) Grassy gentle slope, this plant is an early bloomer among its species here. Northwest corner of North Table Mountain, lower elevation lobe of the mesa, formed on top of the oldest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1736. 15 Aug 2017. ( JCOS s.n. KHD00065321^‡ UCR ^‡ ) . .

Lygodesmia juncea (Pursh) D. Don ex Hooker. Rush Skeletonplant. CalPhotos. Jepson eFlora. SEINet Taxon.

Pappus of capillary bristles.

- North Table Mountain, 1075. 1075. Zeise, Larry Steven, 1976 1258. 1258. Kilburn, Paul D., and Sally L. White, 1992 . .

Nothocalais cuspidata (Pursh) Greene. Prairie False Dandelion. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1267. 1267. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, “Wavy-leaved dandelion,” open prairie on top of mesa, common. Beside North Table Loop, just south of intersection with Tilting Mesa Trail. Tom Schweich 1095. 30 Apr 2015. ( JCOS s.n. KHD56903^‡ UC2045768^‡ ) . .

Packera fendleri (A. Gray) W.A. Weber & �. L饘e. (Syn: Senecio fendleri A. Gray ) Fendler’s Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Senecio fendleri 1292. 1292. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, North Table Mountain Mark Duff 83. 20 Jun 1992. ( COLO00114801^‡ ) . .

Packera plattensis (Nuttall) W. A. Weber & �. L饘e. (Syn: Senecio plattensis (Packera) Nutt. ) Prairie Groundsel. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 14 cm., from taprooted caudix, sap not milky; Stem, light green, tomentose, densely so in axils; Leaves, mostly basal and few cauline, alternate, petiole 8 mm., blade 10 mm. × 5 mm. wide, oblanceolate, surface, upper thinly tomentose, lower moderately tomentose, especially the mid-vein, margin, crenulate; Inflorescence, head enclosed by involucre, showy; Heads, #10, pedicels, 12 mm.; Involucre, 7 mm. × 5-6 mm. wide, thinly tomentose; Phyllaries, equal, in 1 series, 5 mm. × 0.7 mm. wide, green, flat; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #10, tube 3 mm. + blade 7 mm., yellow, fertile; Disc flowers, many, tube 4 mm. + lobes 0.5 mm., yellow; Pappus, many, well-developed, bristles, 4 mm., ±equal, Style, 2-branched; Fruit, 1 mm., green, beak-less, glabrous. (Described from Coll. No. 1817, 12 May 2018).

- North Table Mountain, 1125. 1125. Zeise, Larry Steven, 1976 . .

Pseudognaphalium canescens (DC.) Anderberg. (Syn: P. canescens (DC.) W. A. Weber [illeg.] ) Wright's Rabbit-Tobacco. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, Growing in cracks in the basalt of the upper flow, very few seen. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1549. 1 Sep 2016. ( KHD00064001^‡ ) . .

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.

- North Table Mountain, 1111. 1111. Zeise, Larry Steven, 1976 1285. 1285. Kilburn, Paul D., and Sally L. White, 1992 .

Scorzonera laciniata L. (Syn: Podospermum laciniatum (L.) De Candolle ) Cutleaf Vipergrass. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, as Podospermum l. 1283. 1283. Kilburn, Paul D., and Sally L. White, 1992 Disturbed trailside with grasses and Tragopogon dubius. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1399. 8 Jun 2016. ( JCOS s.n. KHD00063987^‡ ) . .

Senecio eremophilus Richardson var. kingii (Rydb.) Greenm. (Syn: S. eremophila ssp. kingii (Rydb.) G.W. Douglas & G. Ruyle-Douglas , S. kingii Rydb. ) Cut-Leaved Groundsel. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, North Table Mountain. Mark Duff 179. 20 Jun 1992. ( COLO00128652^‡ ) . .

Senecio integerrimus Nutt. Columbia Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon. Probably var. exaltatus (Nutt.) Cronquist if infraspecific names are to be applied.

- North Table Mountain, 1293. 1293. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Numerous plants among short grasses and forbs. Variety exaltatus (Nutt.) Cronquist if infraspecific names are to be applied. Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1811. 10 May 2018. ( CDA0052345^‡ JCOS s.n. KHD00068673^‡ UC ) . .

Senecio spartioides Torr. & A. Gray. (Syn: S. multicapitatus Greenm. ex Rydb. ) Broomlike Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm.; Leaves, basal, unknown, cauline, alternate, 90 mm. × 3 mm. wide, narrowly oblanceolate, reduced above to 30 mm. × 1 mm. wide, variously hairy in axils and ±lower surface; Involucre, 12.5 mm. × 6 mm., narrowly campanulate, bractlets not prominent; Phyllaries, 2 series? or 1 series with 2 forms? outer, 7.5 mm. × 0.7 mm. wide, all green, inner, 7.5 mm. × 1.3 mm. wide, centrally green with margins chartaceous, all tips dark; Receptacle, epaleate; Rays, fertile, corolla, tube 5 mm. + blade 9 mm. × 2 mm. wide, yellow, lobes 3; Disk flowers, corolla, 6 mm., yellow; Pappus, 1 series of fine capillary bristles, 5 mm.; Cypsela, 4 mm., 5-angled, dark gray, “hirtellous” throughout (not just the angles). Described from Coll. No. 1298, 23 Sep 2015.

- North Table Mountain, 1126. 1126. Zeise, Larry Steven, 1976 1294. 1294. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed grasses, forbs and small shrubs. lower north slopes of North Table Mountain, 0.73 km. south southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1538. 18 Aug 2016. ( JCOS s.n. KHD00063457^‡ ) Growing next to Coll. No. 1319, Ribes aureum, 4 May 2016. Middle elevation south slopes of North Table Mountain, along Golden Cliffs trail, 84 m. northeast of the Golden Cliffs trailhead, 1.4 km. northeast of the GNIS location of Golden. Tom Schweich 1545. 1 Sep 2016. ( CS EIU JCOS s.n. KHD00063967^‡ OBI83344^‡ ) . .

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).

- North Table Mountain Park, Trailside in small outcrop of rocks. Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.2 km. northwest of the Easley Road trailhead; 4.32 km. northeast of the GNIS location of Golden. Tom Schweich 1519. 29 Jul 2016. ( COLO02347953^‡ EIU028180^‡ JCOS s.n. KHD00063458^‡ OBI83316^‡ ) With Bromus inermis, Andropogon gerardii, Liatris punctata in bud, Linum lewisii in seed. Westernmost slope of North Table Mountain, near North Table Loop, just north of parking lot and trailhead, 3.2 km. north of the GNIS location of Golden. Tom Schweich 1732. 15 Aug 2017. ( CDA0052327^‡ JCOS s.n. KHD00065323^‡ ) . .

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.

- North Table Mountain, 1131. 1131. Zeise, Larry Steven, 1976 . .

Solidago speciosa Nutt. Showy Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1132. 1132. Zeise, Larry Steven, 1976 . .

Stephanomeria pauciflora (Torr.) A. Nelson. Brownplume Wirelettuce. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, Grassy southeast-facing slope. Lower east slopes of North Table Mountain, between North Table Loop and Mesa Top Trail, 0.7 km. northwest of the Easley Road trailhead; 3.9 km. northeast of the GNIS location of Golden. Tom Schweich 1518. 29 Jul 2016. ( COLO02347961^‡ KHD00065717^‡ OBI176126^‡ ) . .

Symphyotrichum falcatum (Lindl.) G.L. Nesom. (Syn: Aster falcatus Lindl. ) White Prairie Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., scabrous throughout; Leaves, basal, unknown, cauline, alternate, sessile, 32 mm. × 2.7 mm. wide, linear-oblanceolate, entire, tip spinulose, gradually reduced above; Inflorescence, extended panicle; Involucre, 5 mm. × 4.5 mm. wide; Phyllaries, in 4 graduated series, 3-5 mm. × 0.8 mm. wide, chartaceous below, green above, elliptical, tip spinulose except innermost; Receptacle, epaleate; Flowers of 2 kinds, Rays, pistillate, corolla, tube 2.5 mm. + laminae 5 mm. × 1.3 mm, white spatulate; Disk flowers, corolla, 4 mm., some rose to purple, some yellow; Pappus, capillary bristles, 4.5 mm.; Cypsela, 1 mm., hairy. Described from Coll. No. 1300, 23 Sep 2015.

- North Table Mountain, as Aster falcatus 1018. 1018. Zeise, Larry Steven, 1976 . .

Symphyotrichum porteri (A. Gray) G.L. Nesom. (Syn: Aster porteri A. Gray ) Smooth White Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35 cm., eglandular, generally not hairy; Stem ascending; Leaves, cauline, alternate, sessile, 53 mm. × 3 mm. wide, lance-linear, many rolled, tip pointed, maybe spinulose, generally glabrous except some distal margins; Inflorescence, crowded, ±flat-topped; Heads borne simgly on short pedicels; Involucre, 5 mm. × 8 mm. wide; Phyllaries, 2+series, 3.5 mm. × 0.7 mm. wide, ±equal, inner ≥ outer, mid-vein green, margins white proximally, green distally, tip acute; Receptacle, epaleate, convex (if not conic); Flowers of two kinds; Rays, fertile, corolla, 6.5 mm., white; Disk flowers, corolla, 3.0 mm., yellow; Pappus, bristles, barbed, single, 2.5 mm.; Cypsela, 0.7 mm., sparsely hairy. Described from Coll. No. 1266, 29 Jul 2015.

- North Table Mountain, as Aster p. 1213. 1213. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, 1139. 1139. Zeise, Larry Steven, 1976 1297. 1297. Kilburn, Paul D., and Sally L. White, 1992 Flat area beside the trail. On the City of Golden North Table Mountain trail, just below the southwest rim of North Table Mountain, 1.9 km north of the GNIS location of Golden. Tom Schweich 1317. 22 Apr 2016. ( CAS JCOS s.n. KHD00063971^‡ OBI83179^‡ ) . .

Thelesperma megapotamicum (Spreng.) Kuntze. Hopi Tea Greenthread. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1299. 1299. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed grasses and forbs on the nose of a small ridge. Northwest slope of North Table Mountain, near the intersection of the North Table Loop and the Mesa Top Trail, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1503. 13 Jul 2016. ( CS JCOS s.n. KHD00063467^‡ OBI83339^‡ UCR074171^‡ ) Near top of small mound, also collected here: Opuntia macrorhiza and Rhus trilobata. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2140. 11 Jul 2019. ( JCOS s.n. KHD00074276^‡ OBI ^‡ REGIS ) . .

Townsendia . Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, species undetermined 1143. 1143. Zeise, Larry Steven, 1976 . .

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).

- North Table Mountain, 1142. 1142. Zeise, Larry Steven, 1976 1328. 1328. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, On top of the flat surface of a spoils pile from the basalt quarry to the west. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1404. 8 Jun 2016. ( JCOS s.n. KHD00063984^‡ ) Gentle east-facing slope, east of quarry. Top of North Table Mountain, near the southwest edge of the mesa, 1.99 km. north of the GNIS location of Golden. Tom Schweich 1927. 8 Jun 2018. ( COLO02347581^‡ KHD ^‡ OBI137665^‡ UC ) . .

Tragopogon dubius Scop. (Syn: Tragopogon dubius Scop. ssp. major (Jacq.) Vollman ) Yellow Salsify. CalPhotos. Jepson eFlora. SEINet Taxon.

Peduncle inflated distally, flowers yellow, phyllaries in 1 overlapping series, ligules 3-5 mm. shorter than phyllaries.

- North Table Mountain, 1147. 1147. Zeise, Larry Steven, 1976 1300. 1300. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Scattered widely along trail and grassy slopes above and below. On a social trail from the intersection of Easley Road and CO Highway 58, west and upslope to North Table Loop, 1.9 km. northeast of the GNIS location of Golden. Tom Schweich 1339. 12 May 2016. ( CAS JCOS s.n. KHD00063978^‡ UC ) . .

Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray. (Syn: Ximenesia encelioides Cav. ) Golden Crownbeard. Cowpen Daisy.. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, On edge of private horse pasture. Lower north slopes of North Table Mountain at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1539. 18 Aug 2016. ( JCOS s.n. KHD00064003^‡ ) .

Berberidaceae

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

- North Table Mountain, as Mahonia r. 1076. 1076. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Few plants on strath above creek; many more plants at higher and drier locations. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m. northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1309. 12 Apr 2016. ( JCOS s.n. KHD00064104^‡ UC UCR277958^‡ ) .

Boraginaceae

Cryptantha virgata (Porter) Payson. (=Oreocarya virgata (Porter) Greene) Miner"s Candle. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1043. 1043. Zeise, Larry Steven, 1976 1223. 1223. Kilburn, Paul D., and Sally L. White, 1992 .

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

- North Table Mountain, About a dozen plants, just beginning to bloom. Tom Schweich 1552. 5/8/2017. . .

Ellisia nyctelea (L.) L. Aunt Lucy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Hidden in short mown grasses. Northwest side of North Table Mountain, in the road to the underground water tank 30 m. northeast of the tank and 60 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1391. 1 Jun 2016. ( JCOS s.n. KHD00063843^‡ ) Also collected here: Senecio integerrimus, Boechera fendleri, Scutellaria brittonii, Delphinium carolinianum virescens, Potentilla pensylvanica, Viola nuttallii, &c. In a nearly closed depression on the toe of an ancient landslide. Northern part of park, along an informal horse trail, 6.24 km. north northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2486.1 2 Jun 2021. ( OBI185098^‡ ) . .

Heliotropium curassavicum L. Seaside Heliotrope. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Southeast corner of a natural pond, in an opening between cattails. Plants first recognized in the field by Bob Legier. Top of North Table Mountain, along the Tilting Mesa Trail, 3.36 km. north northeast of the GNIS location of Golden. Tom Schweich 1959. 21 Jun 2018. ( KHD00069159^‡ ) . .

Hydrophyllum fendleri (A. Gray) A. Heller. Fendler's Waterleaf. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1247. 1247. Kilburn, Paul D., and Sally L. White, 1992 Moist shady west-facing ravine. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. Tom Schweich 1396. 8 Jun 2016. ( CAS JCOS s.n. KHD00063832^‡ UC UCR277984^‡ ) . .

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

- North Table Mountain, as Lappula redowskii (Hornem.) Greene 1320. 1320. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Open grassland on south-facing slope. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden Tom Schweich 1346. 12 May 2016. ( KHD00068374^‡ UCR278794^‡ ) . .

Lithospermum incisum Lehm. Narrowleaf Stoneseed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial � cleistogamic flowers present, in fruit usually with recurved pedicels. Flowers monomorphic.

- North Table Mountain, 1255. 1255. Kilburn, Paul D., and Sally L. White, 1992 One plant seen. Tom Schweich 1551. 5/8/2017. .

- North Table Mountain Park, Northwest-facing slope, a little drier than surrounding area. Northwest base of North Table Mountain, about 150 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1382. 1 June 2016. ( JCOS s.n. KHD00063831^‡ UC UCR277981^‡ ) On top of the flat surface of a spoils pile from the basalt quarry to the west. Uncommon, very widespread, but seldom seen, and never in large numbers. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1406. 8 Jun 2016. ( CS EIU JCOS s.n. ) . .

Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes. (Syn: Onosmodium bejariense DC. ex A. DC. var. occidentale (Mack.) B. L. Turner , Onosmodium molle Michx. ) Western Marbleseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Onosmodium molle Michx. 1270. 1270. Kilburn, Paul D., and Sally L. White, 1992 Highest prairie mixed with foothill shrubs, also collected nearby: Aegilops cylindrica, Hesperostipa comata, Sphaeralcea coccinea, Linaria dalmatica, and Thinopyrum intermedium. Lower southwest slopes of North Table Mountain, along the lower portion of the City of Golden North Table Mountain trail, 1.9 km. north of the GNIS location of Golden. Tom Schweich 2052. 4 Jun 2019. ( CDA0052289^‡ JCOS s.n. KHD00072802^‡ OBI ^‡ ) . .

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.)

- North Table Mountain, 1080. 1080. Zeise, Larry Steven, 1976 1263. 1263. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Growing in afternoon shade of a small point of rocks, southeast exposure, more along the trail above. Along the lower portion of the Golden Cliffs Trail, about 200 m. from the parking lot and trailhead,1.5 km. northeast of the GNIS location of Golden. Tom Schweich 1320. 4 May 2016. ( JCOS s.n. KHD00063818^‡ UC UCR277961^‡ ) . .

Phacelia heterophylla Pursh. Varileaf Phacelia. CalPhotos. Jepson eFlora. SEINet Taxon.

Described by Pursh (1814) from a collection by M. Lewis Jun-Jul, 1806 on the banks of the Kooskooskie (Clearwater) River.

- North Table Mountain, 1090. 1090. Zeise, Larry Steven, 1976 1279. 1279. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Trailside, in colluvium at base of steep slope, along the Mesa Top Trail, just below the east rim of North Table Mountain, 3.8 km northeast of the GNIS location of Golden. Tom Schweich 1138. 9 Jun 2015. ( CAS JCOS s.n. KHD56844^‡ UC UCR265714^‡ ) . .

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. hispidulus (Greene) Dorn. (Syn: Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. penicillata (Greene) L饘e ) Scouler's popcornflower. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, In shallow water of permanent pond. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC22 Rick Brune 14 May 1992. ( COLO00172270^‡ ) Drying mud, bottom of a small reservoir. Top of North Table Mountain, along the Tilting Mesa Trail, 2.64 km. north northeast of the GNIS location of Golden. Tom Schweich 1958. 21 Jun 2018. ( JCOS s.n. KHD00069151^‡ OBI170763^‡ UC ) Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1452. 22 Jun 2016. ( CS JCOS s.n. KHD00063980^‡ ) .

Brassicaceae

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

- North Table Mountain, 1001. 1001. Zeise, Larry Steven, 1976 . .

Alyssum simplex Rudolphi. (Syn: Alyssum minus Rothm. , Alyssum parviflorum Fisch. ex M.Bieb. ) European Madwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 12-30 cm., stellate hairy throughout (typically doubly branched and 8-pointed); Stem branched at base, ascending; Leaves basal, withered at flowering, appear compound, cauline, alternate, 14-28 mm. × 3.5-5.0 mm., oblanceolate, margin entire, tip acute, sessile or vaguely short-petioled; Inflorescence not bracted; Pedicels, in fruit, 4.5 mm.; Sepals, 4, 2 mm. × 0.7 mm. wide, deciduous in fruit; Petals 2.9-3.0 mm., yellow fading white,clawed, entire to tip slightly notched; Stamens, 2.5-2.6 mm.; Filaments, 2.3 mm., winged proximal 1.5-1.8 mm., not toothed; Style persistent, 1.3 mm., few hairs at base; Fruit round, 3.5-5.0 mm. × 5.6 mm. wide, margin entire, compressed parallel to the replum, hairy, hairs thinning as fruit matures; Ovules, 4 (most keys and descriptions say 2 when they give a specific number, but the genus is described as having 1-2[4] ovules). (Described from Clyde Golden, 25 Jun 2011, Coll. No. 1090, 30 Apr 2015, and Coll. No. 1367, 24 May 2016).

- North Table Mountain, as A. minus Rothm. 1308. 1308. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower west slopes of North Table Mountain, on the City of Golden's North Table Mountain Trail, which is also the access road to a water tank, 75 m south of the North Table Loop. Tom Schweich 1090. 30 Apr 2015. ( CAS JCOS s.n. KHD56939^‡ UC2045769^‡ UCR265980^‡ ) Larger plants here amidst grasses, mostly smooth brome. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1367. 24 May 2016. ( COLO02348506^‡ CS JCOS s.n. UC ) . .

Arabis pycnocarpa M. Hopkins var. pycnocarpa. (Syn: Arabis hirsuta (L.) Scop. , Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins ) Cream Flower Rockcress. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In shrubby area. North Table Mountain, south side, near Golden. 13N 0481425E 4402103N. Stanley Smookler 23 May 1993. ( KHD39068^‡ ) . .

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.)

- North Table Mountain, 1310. 1310. Kilburn, Paul D., and Sally L. White, 1992 . .

Boechera fendleri (S.Watson) W.A.Weber. (Syn: Arabis fendleri (S. Watson) Greene ) Fendler's rockcress. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial (short-lived?), terrestrial, herb, tap-rooted, to 50 cm., branched hairs proximally, glabrous distally; Leaves, basal, petiole 9 mm. + blade 19 mm. × 5.5 mm. wide, oblanceolate, entire, hairs 3-4 branches, cauline sessile, spear-shaped, 21 mm. × 4 mm. wide, auriculate, 1.0-1.5 mm.; Inflorescence, raceme, 125 mm.; Sepals, #4, 4 mm., ovate; Petals, #4, 6 mm., entire, lavender; Stamens, #6; Filaments, 3 mm., narrowly winged; Anthers, 1.5 mm.; Fruit, pedicels, 10 mm., glabrous, 50 mm. × 0.8-1.0 mm. wide, recurved; Ovules, many, biseriate (Described from Coll. No. 1812, 10 May 2018).

- North Table Mountain Park, Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1812. 10 May 2018. ( CAS JCOS s.n. KHD00068471^‡ OBI124865^‡ UCR ^‡ ) . .

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).

- North Table Mountain Park, Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1876. 24 May 2018. ( CAS CDA0052356^‡ JCOS s.n. KHD00068469^‡ ) . .

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).

- North Table Mountain, 1313. 1313. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Possibly at a former home site. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1308. 12 Apr 2016. ( CAS JCOS s.n. KHD00063634^‡ OBI83181^‡ UC UCR277959^‡ ) . .

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 庸ntire (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).

- North Table Mountain, 1314. 1314. Kilburn, Paul D., and Sally L. White, 1992 . .

Erysimum asperum (Nutt.) DC. Western Wallflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1053. 1053. Zeise, Larry Steven, 1976 1233. 1233. Kilburn, Paul D., and Sally L. White, 1992 . .

Erysimum cheiranthoides L. Wormseed Wallflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Several populations found with at least 2 abundantly distributed. #1: in dry, sandy slightly humous soil. #2: Moderate slope, bereft of shrubs other than prickly pear. In dry sandy soil. Associated taxa: Allysum minus, E. colo-mexicanus, A. Nelson, unf South facing slope of North Table Mountain, near base, near trail running west to east continuously for 2-3 miles. 13 0480743E 4401817N. Stanley Smookler 39. 4 Apr 1901. ( KHD29383^‡ ) . .

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).

- North Table Mountain Park, Multiple colonies spread around gentle grassy slopes. Weed: CO DofA, List: B. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1366. 24 May 2016. ( CS JCOS s.n. KHD00063532^‡ UC UCR277975^‡ ) . .

Lepidium perfoliatum L. Clasping Pepperweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In the median and beside the Mesa Spur Trail, near the crossing of Ramstetter Creek, 130 m. south of W. 58th Avenue, surrounded on both sides by horse corrals and facilities, 5.07 km. north of the GNIS location of Golden. Tom Schweich 1808. 11 May 2018. ( CDA0052342^‡ CS JCOS s.n. KHD00068463^‡ ) . .

Physaria montana (A. Gray) Greene. (Syn: Lesquerella montana (A. Gray) S. Watson ) Mountain Bladderpod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, rosette to 5 cm. dia., flowering stems to 14 cm., not in alpine environment, eastern slope, hairs stellate throughout; Leaves, basal, rosette, 9 mm. × 6.5 mm., ovate, entire, petiole, 12 mm., cauline, 10 mm., appearing secund, narrowly oblanceolate; Inflorescence, exceeding leaves; Pedicels, in fruit, ascending; Fruit, 5 mm. × 2 mm., ovate-elliptic, hairs stellate, apex entire (not notched, although these immature). (Described from Coll. No. 1081, 23 Apr 2015).

- North Table Mountain, as Lesquerella m. 1070. 1070. Zeise, Larry Steven, 1976 as Lesquerella m. 1250. 1250. Kilburn, Paul D., and Sally L. White, 1992 . .

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.

- North Table Mountain, 1094. 1094. Zeise, Larry Steven, 1976 1282. 1282. Kilburn, Paul D., and Sally L. White, 1992 Dry, rocky slope. North Table Mountain, Golden. J. H. Ehlers 8363. 5 Jun 1942. ( COLO00201921^‡ ) .

- North Table Mountain Park, North Table Mt., Golden. J. H. Ehlers 8360. 11 May 1942. ( COLO00203109^‡ ) Growing on the east rim of the mesa in exposed soil. North Table Mountain. Growing on the east rim of the mesa. TRS: T3S R70W SEC 14. Mark Duff 154. 16 Jun 1992. ( COLO00203075^‡ ) Growing in volcanic rock outcrop on toe of landslide. Flat area below the rim of North Table Mountain, and above W. 43rd Drive and Ulysses Way, 3.2 km northeast of the GNIS location of Golden. Tom Schweich 1130. 9 Jun 2015. ( JCOS s.n. KHD56963^‡ UCR266082^‡ ) Open grassland on south-facing slope. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden Tom Schweich 1345. 12 May 2016. ( CAS CS JCOS s.n. KHD00063528^‡ OBI83176^‡ UC ) . .

Rorippa tenerrima Greene. Modoc Yellowcress. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1451. 22 Jun 2016. ( JCOS s.n. KHD00063538^‡ ) . .

Sisymbrium altissimum L. Tall Tumblemustard. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual terrestrial herb, to 50 mm.; Roots, tap; Stem, erect, branched above, leafy, few simple hairs; Leaves, basal and cauline, basal: compound, (petiole short if at all present), 120 mm. × 28 mm. wide, oblong, pinnately divided, few simple hairs on petioles, mid-ribs, and margins; cauline: nearly sessile, lanceolate, very finely pinnately divided; Flowers, radial; Sepals, #4, rows, 1, 3.5-4.5 mm. × 0.8 mm. wide, small hood-shaped appendage at tip; Petals, 7 mm. × 1.5 mm. wide, margin, entire, color, yellow; Stamens, tetradynamous, 3.6, 5.2 mm.; Filaments, plain; Anthers, 2 mm.; Stigma, (weakly) 2-lobed; Fruit, 17 mm. × 0.5 mm. wide, ascending, glabrous. Described from Coll. No. 1845, 18 May 2018.

- North Table Mountain, 1127. 1127. Zeise, Larry Steven, 1976 1326. 1326. Kilburn, Paul D., and Sally L. White, 1992 . .

Sisymbrium loeselii L. Loesel's Tumble Mustard. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1128. 1128. Zeise, Larry Steven, 1976 . .

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).

- North Table Mountain, 1141. 1141. Zeise, Larry Steven, 1976 1327. 1327. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Along a social trail above Peery Parkway, adjacent to running water from spring above on upper slopes of North Table Mountain, 1.26 km north northeast of the GNIS location of Golden. Tom Schweich 1324. 4 May 2016. ( CAS JCOS s.n. KHD00063632^‡ OBI83178^‡ UC UCR277963^‡ ) Gentle grassy slope. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1365. 24 May 2016. ( COLO02348498^‡ CS JCOS s.n. KHD00063533^‡ ) . .

Turritis glabra L. (Syn: Arabis glabra (L.) Bernhardi ) Tower Rockcress. CalPhotos. Jepson eFlora. SEINet Taxon.

Short-lived (?) perennial, terrestrial, herb, 45 cm. to 90 cm. tall; Roots, tap. Stem, erect, #1, (1 of 4 specimens has 2 stems), leafy, proximal, simple and forked hairs, distal, glabrous; Leaves, basal and cauline, basal simple, petiole, 6 mm., blade, 60 mm. × 15 mm. wide, oblanceolate, hairs, simple and forked, margin, dentate, tip, obtuse; cauline, #20, sessile, lobed, 2.5 mm., 40 mm. × 10 mm. wide, lanceolate, reduced above, margin, entire, becoming glabrous distally; Inflorescence, raceme, 70 mm. × 11 mm. wide, not bracted, not one-sided; Pedicels (at anthesis), 3-4 mm., glabrous; Sepals, #4, 2.5 mm. × 1.1 mm. wide, ovate, green, margin chartaceous; Petals, 4.5 mm. × 0.7 mm. wide, spatulate, margin entire, color, pinkish, fading lavender; Fruit, (24-) 80-85 mm. × 0.9 mm. wide, ascending-appressed, glabrous, flattened, parallel to replum, style, base 0.4-0.5 mm. wide, stigma, 0.8-0.9 mm. wide; Ovules, biseriate, many, 0.7 mm. × 0.3 mm. wide, tan, translucent, wing not apparent. (Described from Coll. No. 1887, 28 May 2018).

- North Table Mountain, 1376. 1376. White, Sally, and Loraine Yeatts, 1994 .

Cactaceae

Echinocereus viridiflorus Engelm. (Syn: Echinocereus chloranthus (Engelm.) J.N.Haage , Echinocereus viridiflorus Engelm. var. chloranthus (Engelm.) Backeb. ) Nylon Hedgehog Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1045. 1045. Zeise, Larry Steven, 1976 1357. 1357. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Open overgrazed meadow. 1.4 mi. NW of north Table Mesa. East of Colo. 93. G. K. Arp 870. 29 May 1970. ( COLO 00209775^‡ ) . .

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

- North Table Mountain, 1355. 1355. Kilburn, Paul D., and Sally L. White, 1992 Between 3 rocks on toe of landslide, lowest southwest slope. Tom Schweich 1582. 3/14/2018. . .

Escobaria vivipara (Nutt.) Buxb. (Syn: Coryphantha vivipara (Nutt.) Britton & Rose , Escobaria vivipara (Nutt.) Buxb. var. deserti (Engelm.) D. R. Hunt , Escobaria vivipara (Nutt.) Buxb. var. rosea (Clokey) D. R. Hunt ) Beehive Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1356. 1356. Kilburn, Paul D., and Sally L. White, 1992 Colony of seven, by side of trail, growing precarious in thin soil on top of a boulder. Tom Schweich 1553. 5/8/2017. . .

Opuntia macrorhiza Engelm. Western Pricklypear. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial cactus, not distinctly mat-forming; Stem, segments, 90 mm. × 60 mm. wide, flattened, bluish-green, areoles, #5-6 per diagonal row, spaced 8-14 mm., proximal, glochids only, distal, glochids and spines, spines, #2, #1, 28 mm., erect, brown to tan at tip, #1, 12 mm., recumbent, nearly white; Flowers, petals, 36 mm. × 22 mm. wide, wedge-shaped, color yellow; Stamens, many, 18 mm., yellow; Style, 20-24 mm., stout; Stigma, lobes, #6-8, 3 mm.; Fruit, 38 mm. × 17 mm. wide, narrow at base, fleshy, green, areoles, mix of glochids and short spines. (Described from Coll. No. 1948, 15 June 2018.)

- North Table Mountain, as O. compressa which is likely O. macrorhiza per W&W (2012). 1083. 1083. Zeise, Larry Steven, 1976 as O. compressa which is likely O. macrorhiza per W&W (2012). 1358. 1358. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Near top of small mound, also collected here: Thelesperma megapotamicum and Rhus trilobata. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2141. 11 Jul 2019. ( KHD00074275^‡ ) . .

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

- North Table Mountain, 1084. 1084. Zeise, Larry Steven, 1976 1359. 1359. Kilburn, Paul D., and Sally L. White, 1992 Field Notes No. 1132. Tom Schweich 1427. 6/9/2015. . .

Pediocactus simpsonii (Engelm.) Britton & Rose. (Syn: Echinocactus simpsonii Engelm. , Pediocactus simpsonii (Engelm.) Britton & Rose var. minor (Engelm.) Cockerell ) Mountain Ball Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1360. 1360. Kilburn, Paul D., and Sally L. White, 1992 Field Notes No. 1136. Tom Schweich 1428. 6/9/2015. .

- North Table Mountain Park, Tom Schweich 1462. 2/27/2016. Well-vegetated slope with Cercocarpus montanus Tom Schweich 1566. 6/5/2017. Seven at this location, nearby 18 in a 4 m. diameter. Tom Schweich 1590. 4/16/2018. 18 plants in a small radius. Tom Schweich 1591. 4/16/2018. In gravel beside the Rimrock Trail, near the top of North Table Mountain. Tom Schweich, with Cindy Trujillo 2384. 8/13/2021. .

Campanulaceae

Campanula rotundifolia L. Harebell. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, basal, ?, cauline, alternate, ±lance-linear, 52 mm. × 2.5 mm. wide; Inflorescence, solitary and loose racemes; Pedicel, 9 mm.; Calyx, tube 2.5 mm. + 5 lobes 2.5 mm. = 5.0 mm.; Corolla, 13 mm, blue-purple; Capsule, nodding, 5.5 mm. × 4.5 mm. wide, opening by pores near the base. Described from Coll. No. 1246, 24 July 2015.

- North Table Mountain, 1028. 1028. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Four open flowers, many others in bud, around base of boulder. Tom Schweich 1563. 6/1/2017. .

Cannabaceae

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

- North Table Mountain, 1031. 1031. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Several small trees scattered on the hillslope. Lower east slopes of North Table Mountain, along the upper portion of the Lithic Trail and nearby portions of the North Table Loop, 3.77 km. northeast of the GNIS location of Golden Tom Schweich 1799. 8 May 2018. ( JCOS s.n. KHD00068914^‡ ) . .

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

- North Table Mountain, Nomenclature per FNANM. 1065. 1065. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Growing on boulders and Prunus virginiana in a sea of Toxicodendron rydbergii. This flat area is probably a catchment for the spring located just below. Location is in a small wedge of Jefferson County Open Space land between two parcels of City of Golden land. In a flat area (headscarp of ancient landslide?) on the steep southwest slope of North Table Mountain, 1.91 km. north of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2516. 18 Jun 2021. ( KHD00075592^‡ ) .

Caprifoliaceae

Symphoricarpos occidentalis Hook. Western Snowberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Woody perennial to 50 cm., forming dense colonies in moist open swales, [spreading by long sparsely-branched rhizomes,] Twigs without lenticels, minutely hairy when young; Leaves opposite, ovate, to 7 cm. × 5 cm. wide, reduced above, thick, approaching leathery, pinnately veined, upper surface glabrous, lower few short white hairs, margin slightly wavy, slightly rolled under, sparsely curved hairy; Petioles to 7 mm.; Inflorescence axillary (and terminal?); Floral bracts triangular, 3 mm.; Flowers in dense axillary clusters, bisexual, ±radial, possibly slightly bilateral, 2 or more whorls; Corolla fused at base, tube 2-3 mm., throat with recurved hairs, lobes 5, 2.0-3.5 mm, slightly longer than tube, hairy within at level of stamen insertion, white with magenta mottling; Stamens 5, alternate, exserted or barely exserted; Filaments, 3.3-3.6 mm., tapered; Anthers versatile; Ovary inferior Pistil 1; Style exserted or barely exserted; Stigma entire; Fruit a berry, green when young, mature color and size unknown. (Described from specimen seen on Green Mountain, 2 August 2014 and Coll. No. 1252, 26-Jul-2015).

- North Table Mountain, 1138. 1138. Zeise, Larry Steven, 1976 1352. 1352. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Locally common. Verbatim ascension number: 92-57. North Table Mountain. TRS: T3S R70W S21. R.J. Rondeau, with C.A. Pague, M.A. Duff 9257. 16 Jun 1992. ( COLO00828178^‡ ) Lowest north slopes of North Table Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.6 km. north northeast of the GNIS location of Golden. Tom Schweich 1506. 22 Jul 2016. ( COLO2299717^‡ CS EIU JCOS s.n. KHD00063946^‡ OBI83337^‡ ) . .

Symphoricarpos rotundifolius A. Gray. (Syn: S. oreophilus A. Gray , S. rotundifolius A. Gray var. parishii (Rydb.) Dempster , S. rotundifolius A. Gray var. rotundifolius , S. vaccinioides Rydb. ) Roundleaf Snowberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Shrub, to 70 cm.; Leaves, opposite, 12 mm. × 9 mm. wide, ovate, margin entire; Inflorescence, terminal racemes on short branches; Calyx, 1.5 mm.; Corolla, tube 10 mm. + lobes 1.7 mm., color ochroleucus, few hairs near base of tube (around the style); Stamens, #5; Filaments, free 2 mm.; Ovary, inferior; Style, 3.5 mm., glabrous; Fruit, berry, white. Described from Coll. No. 1654, 1 Jun 2017.

- North Table Mountain, as S. oreophilus A. Gray 1353. 1353. Kilburn, Paul D., and Sally L. White, 1992 1377. 1377. White, Sally, and Loraine Yeatts, 1994 .

- North Table Mountain Park, North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1654. 1 Jun 2017. ( CDA0050024^‡ CS JCOS s.n. UCR ^‡ ) .

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.

- North Table Mountain, as C. arvense 1217. 1217. Kilburn, Paul D., and Sally L. White, 1992 . .

Cerastium brachypodum (Engelmann ex A. Gray) B. L. Robinson. (Syn: Cerastium nutans Raf. var. brachypodum Engelmann ex A. Gray ) Short-stalked mouse-ear chickweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as C. nutans var. brachypodum 1374. 1374. White, Sally, and Loraine Yeatts, 1994 . .

Eremogone fendleri (A. Gray) Ikonnikov. (Syn: Arenaria fendleri A. Gray ) Fendler's Sandwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, tufted, to 30 cm.; Stem, proximal glabrous, distal short glandular hairy “peg-like hairs”; Leaves, mostly basal, cauline, stipules absent, opposite, 50 mm. × 0.5 mm. wide, linear to needle-like, erect to appressed, margin finely scabrous, tip small spinulose; Inflorescence, open cyme; Pedicels, 3-8 mm.; Sepals, #5 distinct, 4.5-5.0 mm. × 1 mm. wide, glandular hairy (or stipitate glandular); Petals, white, 5 mm., entire; Stamens, #10; Anthers, purple; Styles, #3. Described from Coll. No. 1270, 1374, and 2372.

- North Table Mountain, as Arenaria fendleri 1007. 1007. Zeise, Larry Steven, 1976 . .

Paronychia jamesii Torr. & A. Gray. James' Nailwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial erect subshrub, to 15 cm.; Leaves, cauline, opposite, 10 mm., linear, pointed, stipules, 4-5 mm., papery; Inflorescence, many-flowered cyme; Sepals, #5, 2.3 mm., greenish, awn-tipped; Petals, absent. Described from Coll. No. 1263, 29 July 2015.

- North Table Mountain, 1088. 1088. Zeise, Larry Steven, 1976 1275. 1275. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Uncommon. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C.A. Pague, M.A. Duff. 9273. 16 Jun 1992. ( COLO 00828111^‡ ) Thin soils on top of the mesa. Top of North Table Mountain, along an old road and former powerline headed about 290 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden Tom Schweich 1491. 13 Jul 2016. ( EIU028187^‡ JCOS s.n. KHD00063524^‡ ) Very thin vegetation with patches of bare mesa caprock. Top of North Table Mountain, near Golden Cliffs Trail, 1.70 km. north of the GNIS location of Golden. Tom Schweich 1659. 8 Jun 2017. ( CDA0050020^‡ UCR ^‡ ) . .

Saponaria officinalis L. Bouncingbet. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Colorado Noxious Weed List B. West side of North Table Mountain, beside the former quarry road now forming a part of North Table Loop, 2.8 km. north of the GNIS location of Golden. Tom Schweich 1743. 15 Aug 2017. ( JCOS s.n. KHD00065358^‡ ) .

Chenopodiaceae

Chenopodium album L. Lambsquarters. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1312. 1312. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Also collected nearby: Opuntia macrorhiza, Potentilla pensylvanica, and Opuntia macrorhiza. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.16 km. north northeast of the GNIS location of Golden. Tom Schweich 2138. 11 Jul 2019. ( CDA0052304^‡ JCOS s.n. KHD00074279^‡ OBI ^‡ ) .

Cleomaceae

Cleomella serrulata (Pursh) Roalson & J. C. Hall. (Syn: Cleome serrulata Pursh , Peritoma serrulata (Pursh) DC. ) Rocky Mountain Bee Plant. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Cleome serrulata 1038. 1038. Zeise, Larry Steven, 1976 .

Convolvulaceae

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

- North Table Mountain, 1041. 1041. Zeise, Larry Steven, 1976 1220. 1220. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Very common trailing perennial. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C.A. Pague, M.A. Duff 9272. 16 Jun 1992. ( COLO00828103^‡ ) .

Crassulaceae

Sedum lanceolatum Torr. (Syn: Amerosedum lanceolatum (Torr.) A. L饘e & D. L饘e ) Spearleaf Stonecrop. CalPhotos. Jepson eFlora. SEINet Taxon.

Type collected by Edwin James on the Long Expedition, described by Torrey, 1827.

- North Table Mountain, 1123. 1123. Zeise, Larry Steven, 1976 1291. 1291. Kilburn, Paul D., and Sally L. White, 1992 .

Elaeagnaceae

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

- North Table Mountain, iNaturalist Observation 185067338. Tom Schweich 3460. 9/26/2023. iNaturalist Observation 185158400. Tom Schweich 3463. 9/26/2023. .

Euphorbiaceae

Chamaesyce glyptosperma (Engelm.) Small. Ribseed Sand Mat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Top of North Table Mountain, near southern edge, 330 m. east of the USBR monument designated “North Table,” 1.64 km. north northeast of the GNIS location of Golden. Tom Schweich 1550.5 1 Sep 2016. ( JCOS s.n. KHD00063968^‡ ) . .

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.)

- North Table Mountain Park, In mixed grasses and forbs. Also seen next to North Table Loop trail. Beside informal horse trail along the northern boundary of the park, 6.28 km. north northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2485. 2 Jun 2021. ( Golden KHD00075598^‡ OBI185099^‡ ) . .

Euphorbia dentata Michx. (Syn: Euphorbia dentata Michx. var. dentata , Pointsettia dentata (Michx.) Klotzsch & Garcke ) Toothed Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Mostly grasses with a few shrubs on this southeast-facing slope. Also previously collected along this part of the trail: Phacelia heterophylla and Medicago lupulina. East side of North Table Mountain, along the Mesa Top Trail, nearly up to the rim of the mesa, 4.95 km. northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2680. 13 Aug 2021. ( Golden KHD00075221^‡ OBI183405^‡ ) . .

Euphorbia esula L. Leafy Spurge. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 1475. 7/13/2016. Colorado Noxious Weed List B. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.25 km. north of the GNIS location of Golden. Tom Schweich 1657. 5 Jun 2017. ( CDA0050022^‡ CS JCOS s.n. KHD00065397^‡ ) Western slope of North Table Mountain, just below a break in slope formed by the lowest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1733. 15 Aug 2017. ( COLO02347987^‡ EIU JCOS s.n. ) . .

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

- North Table Mountain, as Agaloma marginata 995. 995. Zeise, Larry Steven, 1976 1234. 1234. Kilburn, Paul D., and Sally L. White, 1992 Disturbed roadside trail. At base of North Table Mountain, S side of mountain. 13N 0481016E 4401793N. Stanley Smookler 159. 2 Jul 1998. ( KHD32239^‡ ) . .

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

- North Table Mountain, Tom Schweich 1490. 3/16/2017. .

- North Table Mountain Park, Rooted in very thin soil, or in cracks of basalt flow capping the mesa. Colorado Noxious Weed List A. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. Tom Schweich 1323. 4 May 2016. ( CAS CDA0050051^‡ CS JCOS s.n. KHD00063932^‡ OBI83163^‡ UC UCR277965^‡ ) . .

Euphorbia spathulata Lam. (Syn: Tithymalus spathulata (Lam.) W. A. Weber ) Warty Spurge, Spoonleaf Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 25 cm., glabrous throughout; Leaves, cauline alternate, 26 mm. × 9 mm. wide, spatulate, toothed; Inflorescence, umbellate, flower a cyathium; Capsules, 2.5 mm. × 2.8 mm. wide, warty-tuberculate. Not listed as a noxious weed. (Described from Coll. No. 1388, 1 June 2016.)

- North Table Mountain, 1235. 1235. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Not listed as a noxious weed. Northwest side of North Table Mountain, southwest-facing slope above canyon, about 75 m. west of the underground water tank and 160 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1388. 1 Jun 2016. ( JCOS s.n. KHD00063957^‡ UC UCR277979^‡ ) . .

Tragia ramosa Torr. Branched Noseburn. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as T. nepesaefolia orth. var. ?, misapplied. 1146. 1146. Zeise, Larry Steven, 1976 as T. urticifolia, misapplied. 1302. 1302. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Growing among loose rocks at base of rim. Just below the southwest rim of North Table Mountain, 1.75 Km north of the GNIS location of Golden. Tom Schweich 1277. 30 Jul 2015. ( JCOS s.n. KHD00061515^‡ ) .

Fabaceae

Astragalus . Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1021. 1021. Zeise, Larry Steven, 1976 . .

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1208. 1208. Kilburn, Paul D., and Sally L. White, 1992 Trailside, in grasses, in flat area likely created by a landslide. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.3 km. north of the GNIS location of Golden. Tom Schweich 1398. 8 Jun 2016. ( JCOS s.n. KHD00063960^‡ UC UCR277983^‡ ) .

- North Table Mountain Park, Growing in short grasses, near head of drainage where a little more soil has developed. Between North Table Loop and Golden Cliffs Trail, near their intersection. Top of North Table Mountain, southwest sector, 1.75 km. north of the GNIS location of Golden. Tom Schweich 1402. 8 Jun 2016. ( CAS COLO02348373^‡ CS EIU JCOS s.n. OBI83198^‡ ) Small, 1 dm., infl. Crowded, fruit ovoid pods, hairy. Tom Schweich 1447. 7/30/2015. Small, 1 dm., infl. Crowded, fruit ovoid pods, hairy. Tom Schweich 1448. 7/30/2015. Found among short grasses and forbs in all areas of North Table Mountain. Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1810. 10 May 2018. ( CDA0052344^‡ EIU JCOS s.n. ) . .

Astragalus crassicarpus Nutt. Groundplum Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 15 cm., Leaves, compound, stipules free, petiole, 15 mm., blade, 85 mm. × 22 mm. wide, leaflets, #23, 11 mm. × 3.5 mm. wide, terminal leaflet, not a tendril, hairs, simple, appressed, straight, Calyx, tube 8 mm. + lobes 3 mm., hairs, simple, some light and some dark, Flower, zygomorphic, white to blue, banner, 24 mm., glabrous, wings, claw, 10 mm., blade, 10 mm., keel, 20 mm., tip, obtuse; Style, persistent, 8 mm.; Fruit, 17 mm. × 7.3 mm. wide, oblong, glabrous (Described from Coll. No. 1851, 18 May 2018).

- North Table Mountain, 1209. 1209. Kilburn, Paul D., and Sally L. White, 1992 Tom Schweich 1555. 5/22/2017. Beside North Table Loop. Tom Schweich 1558. 5/22/2017. .

- North Table Mountain Park, East side of North Table Mountain, near the Easley Road trailhead, on an old abandoned road just above North Table Loop. Tom Schweich 1624. 22 May 2017. ( JCOS s.n. ) . .

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.

- North Table Mountain, 1019. 1019. Zeise, Larry Steven, 1976 1210. 1210. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Trailside in grass and small brush, near the intersection of the Mesa Top Trail and North Table Loop, eastern slopes of North Table Mountain, 4.1 km northeast of the GNIS location of Golden. Tom Schweich 1141. 9 Jun 2015. ( JCOS s.n. KHD56837^‡ UCR265717^‡ ) . .

Astragalus flexuosus G. Don. Flexible Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, decumbent to ascending stems, to 30-50 cm., not vine-like, caulescent, appressed basifixed hairy throughout; Leaves, cauline, compound, odd pinnate, leaflets ±15-17, terminal leaflet not modified into tendril, stipules, entire, not lobed at base, ~~not connate~~ (slightly) connate on side opposite to petiole, leaflets, 11-12 mm. × 2-4 mm. wide, oblong, notched, terminal leaflet 7 mm. < uppermost pair 8 mm.; Inflorescence, raceme, arising from axils; Calyx, 4 mm., tube >> lobes,not inflated in fruit; Flower, zygomorphic, banner, 9 mm., wings (2), 9 mm., keel, 5.5 mm., <wings, not beaked; Style, 3 mm., glabrous, persistent; Fruit, 9 mm. × 4.5 mm., substipitate 1 mm., not inflated, compression lateral sparse appressed hairs. Described from Coll. No. 1148, 15 Jun 2015, and Coll. No. 1384, 1 June 2016.

- North Table Mountain, 1211. 1211. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Middle north slopes of North Table Mountain, above (south of) the North Table Loop trail, 3.9 km north northeast of the GNIS location of Golden. Tom Schweich 1211. 13 Jul 2015. ( JCOS s.n. KHD00060598^‡ UC ) In grass and forbs on a small ridge. Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1384. 1 Jun 2016. ( COLO02348381^‡ CS OBI83205^‡ ) East side of North Table Mountain, near the Easley Road trailhead, on an old abanconed road just above North Table Loop, 3.7 km. northeast of the GNIS location of Golden. Tom Schweich 1625. 22 May 2017. ( EIU JCOS s.n. ) Moderately disturbed mixed grass prairie. Lowest slopes of North Table Mountain, along the Mesa Spur Trail, below power line, 460 m. south of W. 58th Avenue, 4.77 km. north northeast of the GNIS location of Golden Tom Schweich 1647. 1 Jun 2017. ( CDA0050029^‡ JCOS s.n. UCR ^‡ ) some seed pods collected. Tom Schweich 1763. 7/11/2019. One crown with stems emerging from an area 15 cm. diameter, small magenta flowers. Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, north from North Table Loop in the direction of Ramstetter Reservoir, 3.76 km. north of the GNIS location of Golden. Tom Schweich 1878. 24 May 2018. ( CAS ) . .

Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh. (Syn: Astragalus adsurgens Pall. ) Prairie Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, as A. adsurgens . 1207. 1207. Kilburn, Paul D., and Sally L. White, 1992 In grasses and forbs trailside. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 1.9 km. north of the GNIS location of Golden. Tom Schweich 1400. 8 Jun 2016. ( JCOS s.n. KHD00063961^‡ OBI108942^‡ ) Grassy slopes with Prinus americana and Rhus trilobata. Southwest slopes of North Table Mountain, 2 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1443. 22 Jun 2016. ( CAS UCR278004^‡ ) . .

Astragalus parryi A. Gray. Parry's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1212. 1212. Kilburn, Paul D., and Sally L. White, 1992 . .

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).

- North Table Mountain, as A. cf. shortianus 1020. 1020. Zeise, Larry Steven, 1976 1214. 1214. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, On top of the flat surface of a spoils pile from the basalt quarry to the west. Plant fragments which are consistent with A. shortianus. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1405. 8 Jun 2016. . .

Dalea candida Willd. White Prairie Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

Dalea purpurea Vent. Purple Prairie Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Edge of brush across roadside gulley. Accidental collections with this one: Aegilops cylindrica and Alyssum simplex. Along the Mesa Top Trail (radio tower access road), 135 m. northwest of the tower, 3.3 km. north of the GNIS location of Golden. Tom Schweich 1501. 13 Jul 2016. ( JCOS s.n. KHD00063627^‡ OBI83340^‡ ) . .

Glycyrrhiza lepidota Pursh. American Licorice. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1241. 1241. Kilburn, Paul D., and Sally L. White, 1992 . .

Lathyrus eucosmus Butters & H. St. John. Bush Vetchling. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1248. 1248. Kilburn, Paul D., and Sally L. White, 1992 few plants seen. East side of North Table Mountain, Golden. 13N 0483511E 4404596N. Janet L. Wingate 6804. 25 May 2001. ( KHD36699^‡ ) . .

Lathyrus lanszwertii Kellogg var. leucanthus (Rydb.)Dorn. (Syn: L. leucanthus Rydb. ) White Flower Pea. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as L. leucanthus Rydb. 1249. 1249. Kilburn, Paul D., and Sally L. White, 1992 . .

Lupinus argenteus Pursh var. argenteus. Loosely Flowered Silver Lupine. CalPhotos. Jepson eFlora. SEINet Taxon.

Characters observed while keying: Perennial > 1 dm, stem hairs appressed, leaves cauline, petioles 4-4.5mm, calyx spurred <= 1 mm, banner back hairy, keel upper margin ciliate distal half. Most of the Lupinus argenteus in Golden are var. argenteus.

- North Table Mountain, var. argenteus assumed. 1074. 1074. Zeise, Larry Steven, 1976 var. argenteus assumed. 1257. 1257. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, North-facing grassy slope, 50 m south of the Mesa Top Trail, 150 m west of the east rim of North Table Mountain, 3.6 km northeast of the GNIS location of Golden. Tom Schweich 1137. 9 Jun 2015. ( CAS JCOS s.n. KHD56843^‡ UC UCR265983^‡ ) Lower north slopes of North Table Mountain, between the Tablerock Trail and North Table Loop, 4.0 km north northeast of the GNIS location of Golden. Tom Schweich 1208. 13 Jul 2015. ( JCOS s.n. KHD00060602^‡ UC ) . .

Medicago lupulina L. Black Medick. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual herb, prostrate, to 1 cm. × 50 cm. wide; Leaves, compound, stipules, leaf-like, 6.5 mm., petioles, 11 mm., leaflets, #3, obovate, 5 mm. × 5-6 mm. wide, margin denticulate, middle leaflet extended beyond lateral leaflet on a petiolule; Inflorescence, compact axillary raceme, 8 mm. × 3.5 mm. wide; Sepals, 1 mm.; Flowers, 2 mm., color yellow; Fruit, unknown -- should be curved (Described from Coll. No. 1803, 7 May 2018).

- North Table Mountain, 1260. 1260. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Small yellow flowers on Mesa Top Trail. Eastern slope of North Table Mountain, just below the rim of the mesa, beside the Mesa Top Trail which is a former road, 3.83 km. northeast of the GNIS location of Golden Tom Schweich 1803. 8 May 2018. ( CDA0052341^‡ JCOS s.n. KHD00069148^‡ ) . .

Melilotus albus Medik. White Sweet Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1077. 1077. Zeise, Larry Steven, 1976 1322. 1322. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed grasses and forbs. Introduced. Not considered a noxious weed in Colorado. Lower north slopes of North Table Mountain, beside the North Table Loop, 0.72 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northwest of the GNIS location of Golden. Tom Schweich 1542. 18 Aug 2016. ( CDA0050043^‡ JCOS s.n. KHD00063963^‡ ) . .

Melilotus officinalis (L.) Lam. Yellow Sweet Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1323. 1323. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, along the side of Mesa Top Trail also the road to the radio towers, 3.3 km. north of the GNIS location of Golden. Tom Schweich 1694. 29 Jun 2017. ( JCOS s.n. KHD00065365^‡ UCR ^‡ ) . .

Oxytropis lambertii Pursh. Purple Locoweed. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1087. 1087. Zeise, Larry Steven, 1976 1272. 1272. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1385. 1 Jun 2016. ( JCOS s.n. KHD00063954^‡ ) . .

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

- North Table Mountain, as Psoralea t. 1109. 1109. Zeise, Larry Steven, 1976 as Psoralea t. 1284. 1284. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower north slopes of North Table Mountain, 0.76 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.58 km. north northeast of the GNIS location of Golden. Tom Schweich 1509. 22 Jul 2016. ( CS JCOS s.n. KHD00063628^‡ OBI83336^‡ UCR ^‡ ) . .

Robinia pseudoacacia L. Black Locust. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1115. 1115. Zeise, Larry Steven, 1976 . .

Securigera varia (L.) Lassen. (Syn: Coronilla varia L. ) Purple Crownvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, Introduced. Lower slopes on the south side of North Table Mountain, 330 m. south southeast of the USBR monument designated “North Table,” 1.22 km. north northeast of the GNIS location of Golden. Tom Schweich 1526. 5 Aug 2016. ( COLO02347979^‡ EIU JCOS s.n. KHD00063631^‡ OBI ^‡ ) . .

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely. (Syn: Thermopsis divaricarpa A. Nelson ) Spreadfruit Goldenbanner. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as T. divaricarpa 1140. 1140. Zeise, Larry Steven, 1976 as T. divaricarpa 1298. 1298. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Large patch in meadow, visited by large bumblebees. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. Tom Schweich 1347. 20 May 2016. ( CS JCOS s.n. KHD00063925^‡ UCR278793^‡ ) Large patch in meadow, visited by large bumblebees. On the other side of the creek from my Coll. No. 1347 of the same taxon. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. Tom Schweich 1348. 20 May 2016. ( CAS OBI83325^‡ UC ) . .

Vicia americana Willd. American Vetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm.; Stem, not winged; Leaves, stipules, 3-4 mm. × 10-15 mm. wide, reduced above, lobed, not connate, nectary 0; cauline, compound, odd-pinnate, leaflets #6-8, + simple or 2(4)-forked tendril; Inflorescence, raceme, 4-5 flowered, pedicel 17 mm.; Flowers, zygomorphic, 14-20 mm., petals, ±white to blue distally, banner sometimes pink at point of inflection; Style, round, ring of hairs below stigma; Legume, stipe 5 mm. + body 20-32 mm. × 3-4 mm. wide + persistent style 2 mm. (Described from Coll. No. 1387, 1 June 2016, and Coll. No. 1394, 1 June 2016). Specimens with fewer flowers per raceme and forked tendrils are determined variety minor.

- North Table Mountain, 1304. 1304. Kilburn, Paul D., and Sally L. White, 1992 In grass and small shrubs below the trail. [Variety minor if infraspecific names are to be applied.] Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. Tom Schweich 1394. 8 Jun 2016. ( CAS JCOS s.n. KHD00063958^‡ OBI83201^‡ UCR277986^‡ ) .

- North Table Mountain Park, [Variety americana if infraspecific names are to be applied.] Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1387. 1 Jun 2016. ( JCOS s.n. KHD00063956^‡ UC ) Same as Coll. No. 1387. [Variety americana if infraspecific names are to be applied.] Northwest side of North Table Mountain, southwest-facing slope above canyon, on the edge of the disturbed construction area for the underground water tank and 80 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1390. 1 Jun 2016. ( CAS OBI83204^‡ UCR277978^‡ ) . .

Vicia villosa Roth. Hairy Vetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, sprawling through the smooth brome, to 50 cm.; Leaves, compound, stipules, 13 mm. × 3 mm. wide, 2-lobed, petiole, 0, blade, 75 mm. × 28 mm. wide, leaflets, #13-15, 20 mm. × 4 mm. wide, linear-elliptic, terminal leaflet a tendril, forked, #3-4, hairs, straight; Inflorescence, raceme, secund, flowers, #±20; Calyx, tube 3 mm. + lobes 4 mm., narrow, hairs simple; Flower, zygomorphic, white to dark blue, banner, 16 mm., reflexed ¾, wings, 14 mm., clawed, dark blue, keel, 11 mm., tip obtuse; Style, ring of hairs below stigma, 0.6 mm.; Fruit, (immature) 5 mm. × 0.8 mm wide, lanceolate, glabrous. (Described from Coll. No. 1875, 24 May 2018.)

- North Table Mountain Park, Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.67 km. north of the GNIS location of Golden. Tom Schweich 1875. 24 May 2018. ( CAS JCOS s.n. KHD00069145^‡ UC ) .

Fumariaceae

Corydalis aurea Willd. Scrambled Eggs. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Rocky open slopes above the trail. Small plants here, one larger plant in the basalt rim of the mesa. On the City of Golden North Table Mountain trail, just below the southwest rim of North Table Mountain, 1.9 km north of the GNIS location of Golden. Tom Schweich 1318. 22 Apr 2016. ( JCOS s.n. KHD00063906^‡ UCR277960^‡ ) Small colony growing amongst rocks and shrubs, primarily Ribes cereum at this location. City of Golden open space, lower south slope of North Table Mountain, just above the overflow parking lot, 1.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2026. 25 Apr 2019. ( CAS JCOS s.n. KHD00070551^‡ OBI ^‡ ) .

- North Table Mountain Park, Dry moderately steep hillside cluttered with latite-rock float. Occasional to scattered. East side of North Table Mountain in city of Golden, accessed from Easley Rd to Fairmount Trailhead, Jeffco open space. Site is located at he end of unmarked trail on north bank of moderately steep ravine, 2-3 miles NW from the trailhead. Stanley Smookler 216. 6 May 2000. ( KHD18023^‡ ) Two plants at base of boulder. Tom Schweich 1465. 4/12/2016. .

Geraniaceae

Erodium cicutarium (L.) L'Her. ex Aiton. Hemlock-leav'd Crane's-bill. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1316. 1316. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Colorado Noxious Weed List C. Southeast-draining canyon on the south side of North Table Mountain, near intersection of social trail and North Table Loop, 1.85 km. northeast of the GNIS location of Golden. Tom Schweich 1342. 12 May 2016. ( JCOS s.n. KHD00063927^‡ UC ) . .

Geranium caespitosum James. Pineywoods Geranium. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1057. 1057. Zeise, Larry Steven, 1976 1240. 1240. Kilburn, Paul D., and Sally L. White, 1992 .

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.

- North Table Mountain, 1112. 1112. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, In a protected little rock enclosure, southeast aspect, more along the trail above. Along the lower portion of the Golden Cliffs Trail, about 150 m. from the parking lot and trailhead,1.4 km. northeast of the GNIS location of Golden. Tom Schweich 1319. 4 May 2016. ( JCOS s.n. KHD00063904^‡ UCR277962^‡ ) Tom Schweich 1464. 4/12/2016. . .

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

- North Table Mountain, 1113. 1113. Zeise, Larry Steven, 1976 1348. 1348. Kilburn, Paul D., and Sally L. White, 1992 Rocky outcrops on the toe of a landslide. West slopes of North Table Mountain, along the City of Golden's North Table Mountain Trail, about 0.7 km south from North Table Loop, and 2.3 km north of the GNIS location of Golden. Tom Schweich 1092. 30 Apr 2015. ( CAS OBI82126^‡ UCR265981^‡ ) .

Hypericaceae

Hypericum perforatum L. Common St. John's Wort. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

Treated in family Clusiaceae by Ackerman (2015). Hypericaceae retained at rank of Family by APG IV.

- North Table Mountain Park, Colorado Noxious Weed List C species. Northern part of top of North Table Mountain, just east of the radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1229. 20 Jul 2015. ( CDA0050041^‡ JCOS s.n. KHD00061520^‡ ) .

Lamiaceae

Marrubium vulgare L. Horehound. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1259. 1259. Kilburn, Paul D., and Sally L. White, 1992 . .

Mentha arvensis L. (Syn: Mentha canadensis L. ) Wild Mint. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb; Stem erect; Internodes visible; Leaves 庸qual in size upward; Infloresence axillary clusters distributed along stem; Calyx 5-lobed, radially symmetrical, lobes and tips equally hairy; Flowers radial, 3 mm; Stamens exserted, fertile 4; Style exserted (Described from Coll. No. 718, 20 Nov 2011).

- North Table Mountain, 1261. 1261. Kilburn, Paul D., and Sally L. White, 1992 . .

Mentha spicata L. Spearmint. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1078. 1078. Zeise, Larry Steven, 1976 . .

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

- North Table Mountain, 1081. 1081. Zeise, Larry Steven, 1976 1265. 1265. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Rocky Mountain Front Range, north slope of North Table Mountain, a lava-capped mesa of Denver Formation, just below the rim, 3.7 km north northeast of the GNIS location of Golden. Tom Schweich 1697. 29 Jun 2017. ( CAS JCOS s.n. KHD00065383^‡ ) . .

Monarda pectinata Nutt. Plains Beebalm. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 25 cm., erect; Stem, hairs retrorse; Leaves, cauline, opposite, petiole 7 mm. + blade 35 mm. × 8 mm. wide, ovate-lanceolate, pinnate veined, margin serrate, gland-dotted; Inflorescence, axillary clusters; Corolla, 14 mm., upper lip prominent, color cream. Described from Coll. No. 1236, 20 Jul 2015.

- North Table Mountain Park, Several inconspicuous plants in grasslands. Northern portion of North Table Mountain, 160 m northeast of radio tower, 3.4 km north northeast of the GNIS location of Golden. Tom Schweich 1236. 20 Jul 2015. ( KHD00061513^‡ ) . .

Nepeta cataria L. Catnip. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Stem, square, hispid; Leaves, opposite, petiole, 8 mm., blade, 40 mm. × 19 mm. wide, reduced above, deltoid-chordate, margin, crenate, abaxial densely hispid, rather than tomentose per Ackerfield (2015), tip, acute; Inflorescence, flower clusters arising from axils, flowers pedicillate; Calyx, lobes sharply acute but lacking spines or bristles; Corolla, 2-lipped, white (Described from Coll. No. 2214, 29 August 2019).

- North Table Mountain, 1383. 1383. White, Sally, and Loraine Yeatts, 1994 . .

Prunella vulgaris L. Common Selfheal. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing in running water at the junction of two small ephemeral streams. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1449. 22 Jun 2016. ( JCOS s.n. KHD00063986^‡ UCR278008^‡ ) . .

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

- North Table Mountain, 1290. 1290. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Moderate slope above rock outcrop. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 260 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1352. 20 May 2016. ( JCOS s.n. KHD00063808^‡ ) Also collected here: Senecio integerrimus, Ellisia nyctelea, Boechera fendleri, Delphinium carolinianum virescens, Potentilla pensylvanica, Viola nuttallii, &c. In a nearly closed depression on the toe of an ancient landslide. Northern part of park, along an informal horse trail, 6.24 km. north northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2486. 2 Jun 2021. ( COLO2706109^‡ Golden ) .

Linaceae

Linum lewisii Pursh. (Syn: Adenolinum lewisii (Pursh) A. L饘e & D. L饘e ) Prairie Blue Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1073. 1073. Zeise, Larry Steven, 1976 1254. 1254. Kilburn, Paul D., and Sally L. White, 1992 . .

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.

- North Table Mountain Park, On the edge of a small hill. Northwest base of North Table Mountain, about 110 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1383. 1 Jun 2016. ( CAS CS JCOS s.n. KHD00063951^‡ OBI83206^‡ UC UCR277980^‡ ) .

Loasaceae

Mentzelia . Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, On an artificial slope inside the basalt quarry. Top of North Table Mountain, in basalt quary on west side, 2.1 km. north of the GNIS location of Golden. Tom Schweich 1742. 15 Aug 2017. . .

Mentzelia albicaulis (Douglas ex Hook.) Douglas ex Torr. & A. Gray. (Syn: Acrolasia albicaulis (Douglas) Rydb. , Bartonia albicaulis Douglas ex Hooker ) White-Stem Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, 15-20 cm., taproot; Leaves, basal and cauline, deeply pinnately alternately lobed to mid-rib; Bract lanceolate, 6 mm., entire or 3-lobed, green, not conspicuous, not concealing fruits; Corolla petals free, 5-6 mm. × 2.0-2.5 mm. wide, with orange base and yellow tip; Style, 2.8 mm.; Fruit cylindric-obconic (Sect. Trachyphytum), 15-20 mm. × 2.5 (4.0) mm. wide, curved 30�-80�(130�); Seeds in 4 above mid-fruit, angular, 1.3 mm. × 0.7 mm. × 0.5 mm., dark brown to black in age, seed coat cells domed on seed surface edges, seed coat cells flattened away from edges (Described from Coll. No. 390, 427, and 958).

- North Table Mountain, The brush is mostly Prunus americanus, with some Prunus virginiana, Rhus trilobata, and Cercocarpus montanus. Heavy brush and boulders on steep southwest slope of North Table Mountain, above the spring, but below the headscarp of an ancient landslide, 1.87 km. north of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2515. 18 Jun 2021. ( KHD00075593^‡ ) . .

Mentzelia nuda (Pursh) Torr. & A. Gray. (Syn: Nuttallia nuda (Pursh) Greene ) Bractless Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1262. 1262. Kilburn, Paul D., and Sally L. White, 1992 . .

Mentzelia speciosa Osterh. (Syn: Nuttallia speciosa (Osterh.) Greene ) Plains Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1079. 1079. Zeise, Larry Steven, 1976 .

Malvaceae

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

- North Table Mountain, 1133. 1133. Zeise, Larry Steven, 1976 1295. 1295. Kilburn, Paul D., and Sally L. White, 1992 Most dense along disturbed trail sides, the roots of this one extended under the trail. Highest prairie mixed with foothill shrubs, also collected nearby: Aegilops cylindrica, Hesperostipa comata, Lithospermum occidentale, Linaria dalmatica, and Thinopyrum intermedium. Lower southwest slopes of North Table Mountain, along the lower portion of the City of Golden North Table Mountain trail, 1.95 km. north of the GNIS location of Golden. Tom Schweich 2053. 4 Jun 2019. ( OBI ^‡ REGIS UC ) .

- North Table Mountain Park, 4 plants, flowers just beginning to open. Tom Schweich 1609. 5/24/2018. Lower northeast slopes of North Table Mountain, on North Table Loop, near the Neighborhood Access Trail on West 53rd Drive. Tom Schweich 1649. 1 Jun 2017. ( CAS CDA0050028^‡ JCOS s.n. KHD00065370^‡ ) .

Montiaceae

Claytonia rosea Rydb. Rocky Mountain Springbeauty. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, East to northeast-facing grassy slope. Along the North Table Loop, southeast side of North Table Mountain, approximately 0.5 km west of the Neighborhood Access Trail trailhead at Ridge Road and Ulysses Avenue, 2.6 km northeast of the GNIS location of Golden. Tom Schweich 1312. 12 Apr 2016. ( CAS CS JCOS s.n. KHD00064105^‡ OBI83161^‡ ) . .

Phemeranthus parviflorus (Nutt.) Kiger. Sunbright. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 1572. 6/12/2017. In gravel beside the Rimrock Trail, near the top of North Table Mountain. Tom Schweich, with Cindy Trujillo 2385. 8/13/2021. .

Nyctaginaceae

Mirabilis linearis (Pursh) Heimerl. (Syn: Oxybaphus linearis (Pursh) B. L. Robinson ) Narrowleaf Four O'Clock. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 1 m.; Stem, ascending through brush, glabrous below; Leaves, cauline, alternate, sessile, 90 mm. × 5 mm. wide, linear; Involucre, 15 mm., hairs with pale crosswalls; Flowers, 3 per involucre; Fruit, 4 mm. × 2.2 mm., obovate, ribs 4, hairy. Described from Coll. No. 1273, 30 Jul 2015.

- North Table Mountain, as Oxybaphus l. 1086. 1086. Zeise, Larry Steven, 1976 as Oxybaphus l. 1273. 1273. Kilburn, Paul D., and Sally L. White, 1992 Emerging from brush below the trail. Southwestern slope of North Table Mountain along the North Table Mountain trail (a City of Golden trail), 1.63 km north of the GNIS location of Golden. Tom Schweich 1273. 30 Jul 2015. ( KHD00060596^‡ ) Widely scattered; collected with Andropogon gerardii. South side of North Table Mountain, below Climbing Access Trail near the top of the slope; 260 m. southeast of the USBR monument designated “North Table,” 1.38 km. north northeast of the GNIS location of Golden. Tom Schweich 1525. 5 Aug 2016. . .

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.

- North Table Mountain Park, Lower east branch of the Rimrock Trail. Tom Schweich, with Cindy Trujillo 2389. 8/13/2021. .

Oleaceae

Fraxinus americana L. White Ash. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1054. 1054. Zeise, Larry Steven, 1976 .

Onagraceae

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

- North Table Mountain, as E. glandulosum 1049. 1049. Zeise, Larry Steven, 1976 1229. 1229. Kilburn, Paul D., and Sally L. White, 1992 Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1532. 5 Aug 2016. ( JCOS s.n. KHD00063802^‡ ) . .

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

- North Table Mountain Park, Well-concealed in the gulch and not visible from the Rimrock Trail. Colorado Noxious Weed List A. Reported when found to Jeffco ISM who then sprayed this previously unknown occurrence. Top of North Table Mountain, in the gulch between two portions of the Rimrock Trail, about 650 m. southwest of the “North” triangulation station, 5.03 km northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2685. 13 Aug 2021. ( Golden KHD00075272^‡ ) . .

Oenothera brachycarpa A. Gray. (Syn: Lavauxia brachycarpa (A. Gray) Britton ) Short-Fruit Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1268. 1268. Kilburn, Paul D., and Sally L. White, 1992 . .

Oenothera cespitosa Nutt. Tufted Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1082. 1082. Zeise, Larry Steven, 1976 1269. 1269. Kilburn, Paul D., and Sally L. White, 1992 . .

Oenothera cespitosa Nutt. ssp. macroglottis (Rydb.) W.L. Wagner. Tufted Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, On the bank of a spoils pile from the basalt quarry, west-facing slopes. Most petals dried pink, a few remained yellowish. Subspecies macroglottis (Rydb.) W.L. Wagner if infraspecific names are to be applied. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1407. 8 Jun 2016. ( COLO02348340^‡ CS JCOS s.n. KHD00063834^‡ ) . .

Oenothera curtiflora W.L. Wagner & Hoch. (Syn: Gaura mollis James, nom. rej. , Gaura parviflora Douglas ex Lehm. ) Velvet Butterfly-Weed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lowest north slopes of North Tab;e Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1505. 22 Jul 2016. ( EIU JCOS s.n. KHD00063948^‡ ) . .

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).

- North Table Mountain, as Gaura coccinea 1239. 1239. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Short grass with Cercocarpus montanus, Artemisia frigida, and A. ludoviciana. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.28 km. north of the GNIS location of Golden. Tom Schweich 1656. 5 Jun 2017. ( CS JCOS s.n. KHD00065486^‡ ) .

Orobanchaceae

Castilleja integra A. Gray. Wholeleaf Indian Paintbrush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Rocky ground. Northern portion of North Table Mountain, 200 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1230. 20 Jul 2015. ( JCOS s.n. KHD00061514^‡ UC UCR267456^‡ ) . .

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

- North Table Mountain, 1271. 1271. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Rare, southwest facing slope. Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1386. 1 Jun 2016. ( KHD00063842^‡ ) Openings among Cercocarpus montanus Tom Schweich 1567. 6/5/2017. .

Papaveraceae

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

- North Table Mountain, 1008. 1008. Zeise, Larry Steven, 1976 1202. 1202. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated “North Table,” 1.44 km. north northeast of the GNIS location of Golden. Tom Schweich 1522. 5 Aug 2016. ( COLO02347946^‡ JCOS s.n. KHD00063630^‡ UC ) .

Phrymaceae

Erythranthe floribunda (Douglas ex Lindl.) G. L. Nesom. (Syn: Mimulus floribundus Lindl. ) Many Flowered Monkey Flower. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 45 mm.; Stems, gland-tipped hairs; Leaves, cauline, opposite, petiole, an indistinct 0.4-0.7 mm. to a distinct 1.5 mm., blade, 8 mm. × 4.5 mm. wide, palmately veined, margin, entire to few-toothed; Calyx, tube 3.5 mm., + lobes 0.5 mm., uppermost lobe not longer, more like bottom two lobes are shorter, margins sparsely ciliate; Pedicels, 15-16 mm., glandular; Corolla, 6 mm. × 2 mm. dia., throat open, lobes, 1 mm., upper lobe ±=others, limb 3.7 mm., yellow. Described from Coll. No. 1688, 28 June 2017.

- North Table Mountain Park, Common in dry mud, covering flat-lying, thin layered outcrops of latite basaltic rock, and growing in association with moss; a lava capped mesa overlying sediments of the Denver formation. Top of North Table Mountian, Mountain lies just east of the town of Golden. 13N 0481952E 4403212N. Stanley Smookler 175. 24 May 1998. ( KHD37771^‡ ) In a watercourse that drains an ephemeral pond south to Clear Creek. Top of North Table Mountain, southwest quadrant, 2.22 km. north of the GNIS location of Golden. Tom Schweich 1930. 8 Jun 2018. ( OBI170958^‡ ) Growing in running water at the junction of two small ephemeral streams. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1448. 22 Jun 2016. ( CAS CS JCOS s.n. KHD00063983^‡ UCR278009^‡ ) . .

Erythranthe guttata (Fisch. ex DC.) G.L. Nesom. (Syn: Mimulus guttatus DC. ) Seep Monkeyflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Mimulus g. 1264. 1264. Kilburn, Paul D., and Sally L. White, 1992 .

Plantaginaceae

Gratiola neglecta Torr. Clammy Hedge Hyssop. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Intermittent streambed on summit. (Coordinates ±1000m. — Ed.) North Table Mesa, ca. 1.5 mi. NE of Golden. TRS: T3S R70W SEC22 Rick Brune 24 May 1992. ( COLO00751180^‡ ) Drying mud. Top of North Table Mountain, south-central area, in a natural ephemeral pond that has been enhanced by a small rock dam, 2.35 km. north northeast of the GNIS location of Golden. Tom Schweich 1933. 8 Jun 2018. ( JCOS s.n. KHD00069224^‡ ) . .

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.

- North Table Mountain, 1253. 1253. Kilburn, Paul D., and Sally L. White, 1992 West-facing slope with mixed grasses and forbs. Colorado Noxious Weed List B. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.6 km. north of the GNIS location of Golden. Tom Schweich 1393. 8 Jun 2016. ( CAS CDA0050048^‡ JCOS s.n. KHD00063845^‡ OBI83202^‡ UCR277987^‡ ) Highest prairie mixed with foothill shrubs, also collected nearby: Aegilops cylindrica, Hesperostipa comata, Lithospermum occidentale, Sphaeralcea coccinea, and Thinopyrum intermedium. Lower southwest slopes of North Table Mountain, on the section line between Sections 21 and 28 which for unknown reason has been plowed or otherwise disturbed, 1.95 km. north of the GNIS location of Golden. Tom Schweich 2054. 4 Jun 2019. ( EIU OBI ^‡ REGIS ) . .

Penstemon secundiflorus Benth. Sidebells Penstemon. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, West-facing slope with mixed grasses and forbs. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.6 km. north of the GNIS location of Golden. Tom Schweich 1392. 8 Jun 2016. ( CAS JCOS s.n. KHD00063844^‡ OBI83203^‡ UC UCR277988^‡ ) . .

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).

- North Table Mountain Park, In thin soils or cracks of basalt caprock, near the edge of prairie dog town. Top of North Table Mountain, along an old road and former powerline headed about 600 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden Tom Schweich 1490. 13 Jul 2016. ( CS EIU028186^‡ JCOS s.n. KHD00063803^‡ ) Small, dry gravelly bar between two small watercourses. Lowest west slopes of North Table Mountain, between CO Highway 93 and North Table Loop, 3.53 km. north of the GNIS location of Golden. Tom Schweich 1882. 24 May 2018. ( JCOS s.n. ) . .

Veronica anagallis-aquatica L. Water Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Northwest corner of a natural pond, amid grasses and forbs. Top of North Table Mountain, along the now-closed portion of the Mesa Top Trail, 3.39 km. north northeast of the GNIS location of Golden. Tom Schweich 1960.2 21 Jun 2018. ( JCOS s.n. ) . .

Veronica arvensis L. Corn Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Small wet area at base of rocks. Southeast edge of North Table Mountain where a small stream cuts through the uppermost basalt rim, beside North Table Loop, 1.85 km. north northeast of the GNIS location of Golden. Tom Schweich 1344. 13 May 2016. ( CS JCOS s.n. KHD00063805^‡ ) See also my collection 1344, 13 May 2016, at the same location Southern portion of North Table Mountain just above a break in slope above an unnamed canyon draining into Clear Creek, 1.85 km. north northeast of the GNIS location of Golden. Tom Schweich 1602.1 8 May 2017. ( COLO02348282^‡ JCOS s.n. ) . .

Veronica biloba L. (Syn: Pocilla biloba (L.) W. A. Weber ) Twolobe Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Few plants in weedy area near horse pens. Associate plants: Bromus tectorum, Br. inermis and other weeds. Table Mountain Ranch located N of North Table Mountain, Golden. 13N 0481923E 4405571N. Janet L. Wingate 5705. 4 May 1995. ( COLO00774521^‡ KHD31875^‡ ) . .

Veronica peregrina L. ssp. xalapensis (Kunth) Pennell. (=Veronica peregrina L.) Neckweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Mesa top, southeast portion of North Table Mountain, 3.4 km northeast of the GNIS location of Golden Tom Schweich 1135. 9 Jun 2015. ( JCOS s.n. KHD56842^‡ UCR266079^‡ ) .

Polemoniaceae

Aliciella pinnatifida (Nutt. ex A.Gray) J.M.Porter. (Syn: Gilia pinnatifida Nutt. ) Sticky Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Gilia p. 1317. 1317. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Uncommon on mesa. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau 9261. 16 Jun 1992. ( COLO00828061^‡ ) Volcanic gravel plain, also seen on floor of basalt quarry. Top of North Table Mountain, on volcanic gravel plain near areas of bare basalt, 150 m. northwest of Lichen Peak, 2.6 km. north of the GNIS location of Golden. Tom Schweich 1741. 15 Aug 2017. ( JCOS s.n. KHD00065359^‡ UCR ^‡ ) Floor of basalt quarry, with Heterotheca villosa, and Paronychia jamesii. Top of North Table Mountain, in the main basalt quarry near the west edge of the mesa, 2.1 km. north of the GNIS location of Golden. Tom Schweich 1926. 8 Jun 2018. ( CAS JCOS s.n. KHD00069163^‡ ) . .

Gilia ophthalmoides Brand. (Syn: Gilia inconspicua (Sm.) Sweet ) Pinyon Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 10 cm.; Leaves, mostly basal, much reduced above, basal deeply pinnately lobed, cobwebby hairs, lobes bristle-tipped, cauline alternate, not clasping or expanded at base; Pedicel slightly glandular, adjacent pedicels unequal; Calyx membraneous between lobes, few glands and hairs, lobes not bristle-tipped; Corolla, tube 7 mm. + yellow throat 2 mm. + lobes 3 mm. = 12 mm.; Stamens, slightly exserted, not exceeding lobes; Fruit, ovoid, 4.5 mm. (Described from Coll. No. 283, 24 April 2001.)

- North Table Mountain, 1058. 1058. Zeise, Larry Steven, 1976 . .

Ipomopsis aggregata (Pursh) V.E. Grant ssp. candida (Rydb.) V.E. Grant & A.D. Grant. Scarlet Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Ssp. candida assumed. 1066. 1066. Zeise, Larry Steven, 1976 1319. 1319. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, In a dry meadow. Growing at the SW base of North Table Mountain. Mark Duff 19. 16 Jun 1992. ( COLO00586610^‡ ) Northern part of top of North Table Mountain, just east of the radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1228. 20 Jul 2015. ( JCOS s.n. KHD00062145^‡ ) . .

Phlox multiflora A. Nelson. Mountain Phlox. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, tufted, decumbent to ascending, 7-10 cm.; Internodes, 8-9 mm.; Leaves, cauline, opposite, 23 mm. × 2 mm. wide, ±linear, sharp-pointed; Flowers, solitary at ends of stems, pedicels, 12 mm., hairy, calyx, tube 5 mm. + lobes 6 mm., sparsely hairy, hyaline membranes flat; corolla, tube 14 mm + lobes 11 mm. × 7 mm. wide, color (not recorded), fading blue. Described from Coll. No. 1653, 1 Jun 2011.

- North Table Mountain, as P. longifolia 1280. 1280. Kilburn, Paul D., and Sally L. White, 1992 1385. 1385. White, Sally, and Loraine Yeatts, 1994 Locally common. N. facing slope by trail, growing with Cercocarpus montanus. North side of North Table Mountain, Golden; N facing slope by trail. 13N 0483511E 4404596N. Janet L. Wingate 6805. 25 May 2001. ( COLO00574095^‡ KHD36700^‡ ) .

- North Table Mountain Park, Determination tentative. Tom Schweich 1478. 7/22/2016. Trailing down a break in slope. In retrospect, this also appears to be at the mouth of a small watercourse. North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1653. 1 Jun 2017. ( CDA0050025^‡ CS JCOS s.n. KHD00065489^‡ ) Lower north slopes of North Table Mountain, on a small ridge overlooking the North Table Loop, 4.51 km. north northeast of the GNIS location of Golden Tom Schweich 1814. 10 May 2018. ( CAS JCOS s.n. KHD00069161^‡ UCR ^‡ ) Tom Schweich, with Cindy Trujillo 2138. 6/2/2021. Also observed and collected on slopes above the North Table Loop from this point west to the power lines. North slopes of North Table Mountain, along the North Table Loop trail, 6.13 km. north northeast of the GNIS location of Golden. Closest access point is the neighborhood access trail on W. 53rd Drive. Tom Schweich, with Cindy Trujillo 2487. 2 Jun 2021. ( COLO2706174^‡ OBI185097^‡ ) .

Polygonaceae

Eriogonum . Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, This is a mixed collection. Match this collection with Coll. No. 1445. 1.7 km. north of the GNIS location of Golden. Tom Schweich 1401. 8 Jun 2016. ( Golden ) . .

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.

- North Table Mountain, 1230. 1230. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Common atop mesa. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C. A. Pague and M. A. Duff 9270. 16 Jun 1992. ( COLO00828095^‡ ) Thin, dry soil, on top of basalt flow capping North Table Mountain. Top of North Table Mountain, about mid-way between the radio tower and the large pond to the east, about 3.25 km. north of the GNIS location of Golden. Tom Schweich 1492. 13 Jul 2016. ( EIU028188^‡ JCOS s.n. KHD00063525^‡ OBI83305^‡ ) . .

Eriogonum arcuatum Greene, Pittonia. 4: 319. 1901. (Syn: E. bakeri Greene , E. jamesii Benth var. flavescens S. Watson ) Baker's Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Observed as E. flavum 1231. 1231. Kilburn, Paul D., and Sally L. White, 1992 as E. jamesii 1232. 1232. Kilburn, Paul D., and Sally L. White, 1992 Observed as E. flavum 1386. 1386. White, Sally, and Loraine Yeatts, 1994 .

- North Table Mountain Park, Rooted in thin soils and fractures of exposed caprock of mesa. Northern portion of North Table Mountain, 210 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1232. 20 Jul 2015. ( JCOS s.n. KHD00060595^‡ UC UCR267457^‡ ) Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.2, 1445.1, and 1445.2. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich 1401.1 8 Jun 2016. ( JCOS s.n. KHD00063558^‡ ) Rooted in thin soils and fractures of exposed caprock of mesa. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, 210 m. east of radio tower, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1695. 29 Jun 2017. ( EIU JCOS s.n. KHD00065364^‡ UC ) Growing in thin soils and cracks on top of the uppermost basalt flow, with E. umbellatum var. umbellatum. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1445.1 22 Jun 2016. ( CAS UCR278007^‡ ) . .

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.)

- North Table Mountain, 1051. 1051. Zeise, Larry Steven, 1976 1343. 1343. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1507.1 22 Jul 2016. Many here, very few in bloom. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1537. 18 Aug 2016. ( JCOS s.n. KHD00063523^‡ ) Mixed grasses, shrubs, and forbs. Lower north slopes of North Table Mountain, in an area of small knolls that may be the toe of a large lansdlide, 0.74 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1541. 18 Aug 2016. ( COLO02348662^‡ CS EIU JCOS s.n. KHD00063579^‡ OBI83345^‡ UC ) . .

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.

- North Table Mountain, likely var. umbellatum 1052. 1052. Zeise, Larry Steven, 1976 likely var. umbellatum 1335. 1335. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.1, 1445.1, and 1445.2. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich 1401.2 8 Jun 2016. ( JCOS s.n. KHD00063535^‡ ) Growing in thin soils and cracks on top of the uppermost basalt flow, with E. arcuatum. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1445.2 22 Jun 2016. ( UCR278006^‡ ) . .

Polygonum aviculare L. Prostrate Knotweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1325. 1325. Kilburn, Paul D., and Sally L. White, 1992 . .

Rumex crispus L. Curley Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1286. 1286. Kilburn, Paul D., and Sally L. White, 1992 Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Introduced. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1531. 5 Aug 2016. ( JCOS s.n. KHD00063562^‡ ) . .

Rumex salicifolius Weinm. (Syn: R. salicifolius Weinm. ssp. salicifolius ) Willow Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1118. 1118. Zeise, Larry Steven, 1976 . .

Rumex triangulivalvis (Danser) Rech. f. (Syn: R. salicifolius Weinm. var. triangulivalvis (Danser) J. C. Hickman ) Triangular-Valved Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 15 cm., growing beside distributary of Mill Creek; Main stem, herbaceous (not clearly woody), decumbent; Leaves, cauline, lance-linear arcuate, 80 mm. × 10 mm. wide, 8 × longer than wide, margins wavy, adaxial surface sparsely short-hairy, esp. mid-rib, abaxial sparsely cobwebby, esp. mid-rib, petiole, 45 mm., not jointed; Inflorescence, monoecious, axillary, dense, interrupted; Flower, inner perianth lobes 3, 3 mm. × 1.8 mm. wide, triangular, notched bear base, tip acute, tubercule (callosity) 1 × 3 inner lobes = 3, ± equal, width 0.3 mm., 1/6 lobe, minute warty, outer perianth lobes mostly deteriorated and easily overlooked; Stamens, 6, yellow; Styles, 3, fringed; Seed, 3-angled, 1.4 mm × 0.7 mm. wide, brown (Described from Coll. No. 1009, 22 July 2013).

- North Table Mountain, as Rumex salicifolius trianguliv. (sic) 1287. 1287. Kilburn, Paul D., and Sally L. White, 1992 .

Primulaceae

Androsace occidentalis Pursh. Western Rockjasmine. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 5 cm., inconspicuous, seen only while lying in grass to collect a sedge, non-glandular hairs branched, glands few; Leaves, basal, 8 mm. × 1.8 mm. wide, elliptic, slightly narrowed at base but not clearly petioled; Peduncle (scape?), 40 mm.; Bracts, 3.7 mm., elliptic; Pedicel, 6 mm.; Sepals, 4 mm., prominently 1-veined, but keel not apparent in dry specimen, papery where united (could be described as a calyx with lobes ±= tube); Corolla, <calyx, white. (Described from Coll. No. 1080, 23 April 2015).

- North Table Mountain Park, Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1368. 24 May 2016. ( CS JCOS s.n. KHD00063824^‡ UCR277974^‡ ) Lowest northwest slope of North Table Mountain; small colony in Bromus inermis, Camelina microcarpa, Alyssum simplex, Linaria dalmatica, and Tragopogon dubius; only native here. Accidently discovered when pulling Coll. No. 1876, Camelina microcarpa out of the ground. Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1877. 24 May 2017. ( CAS JCOS s.n. KHD00069216^‡ ) .

Ranunculaceae

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

- North Table Mountain, 1037. 1037. Zeise, Larry Steven, 1976 1341. 1341. Kilburn, Paul D., and Sally L. White, 1992 . .

Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks. (Syn: D. carolinianum Walter ssp. penardii (Huth) L. M. Perry , Delphinium virescens Nutt. ) Plains Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Among short grasses in a small backslope from a promontory on the northwest side of the mesa. Tom Schweich 1569. 6/5/2017. Six plants, just off Tilting Mesa Trail Tom Schweich 1622. 6/21/2018. Also collected here: Boechera fendleri, Potentilla pensylvanica, Senecio integerrimus, and Viola nuttallii. Inflorescence stunted in one specimen, virus infection (?). Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.26 km. north northeast of the GNIS location of Golden. Tom Schweich 2137. 11 Jul 2019. ( JCOS s.n. KHD00074280^‡ ) . .

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

- North Table Mountain, 1224. 1224. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, 1381. 1381. White, Sally, and Loraine Yeatts, 1994 .

- North Table Mountain Park, One blue, one lavender, in a thicket of Prunus virginiana on a game trail. East side of North Table Mountain, near the Easley Road trailhead, on an old abandoned road above North Table Loop, 3.8 km. northeast of the GNIS location of Golden. Tom Schweich 1628. 22 May 2017. ( JCOS s.n. KHD00065341^‡ ) Moist friable soil. Lower north slopes of North Table Mountain, in a swale beside the North Table Loop, 4.56 km. north northeast of the GNIS location of Golden. Tom Schweich 1813. 10 May 2018. ( CDA0052346^‡ CS EIU029813^‡ OBI124866^‡ ) . .

Myosurus minimus L. (Syn: Myosurus minimus L. ssp. minimus ) Tiny Mousetail. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Drying pond margin. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC22. Rick Brune 24 May 1992. Occasional on thin layers of drying mud which covers flat-lying outcrops of latite basalt. Located on top of North Table mountain just W of the Lichen Lakes in the southwestern part of the mesa top. 13N 0482902E 4404403N. Stanley Smookler 154. 24 May 1998. ( KHD32261^‡ ) Well past flowering, in bed of former reservoir. Tom Schweich 1623. 6/21/2018. In a small drying pond Tom Schweich 1624. 6/21/2018. Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1452.1 22 Jun 2016. ( JCOS s.n. ) . .

Pulsatilla nuttalliana (DC.) Bercht. & J. Presl. (Syn: Anemone nuttalliana DC. , Anemone patens L. var. nuttalliana (DC.) A Gray , P. patens (L.) Mill ssp. nuttalliana (DC.) ined. ) Pasque Flower. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Pulsatilla p. var. m. 1387. 1387. White, Sally, and Loraine Yeatts, 1994 . .

Ranunculus aquatilis L. var. diffusus With. (Syn: Ranunculus aquatilis L. var. capillaceus (Thuill.) DC. ) Threadleaf Crowfoot. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Top of North Table Mountain, south edge of pond at base of north-facing rocky slope (fault scarp?), 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1497. 13 Jul 2016. ( JCOS s.n. KHD00063526^‡ ) . .

Ranunculus cymbalaria Pursh. (=Halerpestes cymbalaria (Pursh) Greene) Alkali Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb; Leaves basal, simple (i.e., not compound); Sepal spurs absent; Flower radial; Perianth in 2 whorls; Petals 4+; Anthers yellow; Pistils many; Ovules 1 per ovary; Fruit body 7-9 mm (Described from Coll. No. 409, 25 May 2004).

- North Table Mountain, 1110. 1110. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, In very wet soil at the edge of the pond. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, near the radio tower, 3.4 km. north of the GNIS location of Golden. Tom Schweich 1498. 13 Jul 2016. ( JCOS s.n. KHD00063527^‡ ) . .

Ranunculus sceleratus L. (Syn: Hecatonia scelerata (L.) Fourr. ) Cursed Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, terrestrial herb of wet places, to 20 mm.; Leaves, basal, petiole 45 mm. + blade 20 mm. × 32 mm. wide, deeply lobed into 3 segments, lobes rounded, mostly withered, cauline, alternate, petiole 20 mm. + blade 20 mm. × 24 mm. wide, twice ternately lobed, lobes rounded, few long thin hairs; Flowers, actinomorphic; Sepals, 2.2 mm. × 1.2 mm. wide, thin, ovate, thin white hairs; Petals, 2 mm. × 1.3 mm. wide, yellow, elliptic, not spurred; Achenes, 1.3 mm. × 1.0 mm. wide, green-tan, subglobose, small beak, glabrous. (Described from Coll. No. 1960, 21 June 2018.)

Rosaceae

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. Saskatoon Serviceberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Shrub, to 1 m.; Stems, branches unarmed; Leaves, simple, petiole, 8 mm., blade, 22-32 mm. × 19-32 mm. wide, veins, pinnate, surface, sparsely hairy above, sparsely to moderately hairy below, margin, serrate; Flowers, borne singly, pedicels, 10 mm., petals 9 mm. × 4.5 mm. wide, color cream; Ovary, inferior, tip hairy; Styles, #(4)5 (Described from Coll. No. 1800-1801, 7 May 2018)

- North Table Mountain, 1337. 1337. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, A few small shrubs on slopes of northeast aspect, lower east slopes of North Table Mountain, 3.83 km. northeast of the GNIS location of Golden. Tom Schweich 1800. 8 May 2018. ( UCR 289038^‡ ) Beside North Table Loop, numerous small shrubs. Slopes of northeast aspect, lower east slopes of North Table Mountain, 4.00 km. northeast of the GNIS location of Golden. Tom Schweich 1801. 7 May 2018. ( JCOS s.n. KHD00069204^‡ ) . .

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.

- North Table Mountain, 1032. 1032. Zeise, Larry Steven, 1976 1339. 1339. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower Cottonwood Canyon on southeast side of North Table Mountain, about 295 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1349. 20 May 2016. ( JCOS s.n. KHD00063923^‡ UC UCR278792^‡ ) . .

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

- North Table Mountain, as C. erythropoda 1042. 1042. Zeise, Larry Steven, 1976 as C. erythropoda 1342. 1342. Kilburn, Paul D., and Sally L. White, 1992 . .

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.

- North Table Mountain, 1064. 1064. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, On west-facing slope. Rare. North Table Mountain. On west-facing slope. TRS: T3S R70W S21. R. J. Rondeau, with C.A. Pague, M.A. Duff 9256. 16 Jun 1992. ( COLO00828186^‡ ) . .

Physocarpus monogynus (Torr.) J.M. Coult. (Syn: Spiraea monogyna Torr. ) Mountain Ninebark. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1095. 1095. Zeise, Larry Steven, 1976 1344. 1344. Kilburn, Paul D., and Sally L. White, 1992 Moist shady west-facing ravine. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. Tom Schweich 1397. 8 Jun 2016. ( CS JCOS s.n. KHD00063959^‡ OBI83200^‡ ) .

- North Table Mountain Park, Steep north slope, northwest section of North Table Mountain, just below a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.32 km. north of the GNIS location of Golden. Tom Schweich 1658. 5 Jun 2017. ( CDA0050021^‡ JCOS s.n. KHD00065398^‡ UCR ^‡ ) One of several quintessential Jefferson County taxa, as the type was collected in Platte Canyon by Dr. Edwin James of the Major Stephen H. Long expedition of 1820. Northwest side of North Table Mountain, in a small gulch just below the rim of the mesa formed by the highest lava flow in the Denver Formation. Tom Schweich 1739. 15 Aug 2017. ( JCOS s.n. KHD00065320^‡ UCR ^‡ ) In a small wedge of Jefferson County Open Space lands between two City of Golden parcels. Small grassy areas on the upper southwest slope of North Table Mountain, hummocky terrain, probably in the head of one or more landslides, 1.94 km. north of the GNIS location of Golden. Tom Schweich 2058. 4 Jun 2019. ( CAS COLO2434645^‡ REGIS UC ) Also collected here: Phlox multiflora. North slopes of North Table Mountain, along the North Table Loop trail, 6.13 km. north northeast of the GNIS location of Golden. Closest access point is the neighborhood access trail on W. 53rd Drive. Tom Schweich, with Cindy Trujillo 2488. 2 Jun 2021. ( Golden ) . .

Potentilla L. Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, species undetermined 1105. 1105. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, The mystery plant. Possibly a Potentilla. Seen here and on the flat to the northeast near the power line. Tom Schweich 1607. 5/10/2018. . .

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).

- North Table Mountain, as Drymocallis f. 1044. 1044. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive, among rocks in a minor gulley. Tom Schweich 1650. 1 Jun 2017. ( CDA JCOS s.n. KHD00065396^‡ UCR ^‡ ) . .

Potentilla gracilis Hook. Slender Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1103. 1103. Zeise, Larry Steven, 1976 . .

Potentilla norvegica L. Norwegian Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1104. 1104. Zeise, Larry Steven, 1976 .

Potentilla pensylvanica L. Prairie Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., erect; Leaves, basal and cauline, basal, 130 mm. × 25 mm. wide, compound, pinnate, leaflets, #11, margins, revolute; cauline, #7-10 per stem, alternate, reduced in size, compound, pinnately-lobed, stipules, large, to 25 mm., deeply cleft, petiole, 25 mm., blade, 70 mm. × 32 mm. wide, leaflets, #10, 30 mm. × 11 mm. wide, lobed ≥½, margin, revolute; Inflorescence, clusters of #5-7 flowers; Pedicels, 2-10 mm.; Sepals, #5, 5 mm., green, hairy, glands, abundant, epicalyx bractlets, 4.5 mm. × 1.8 mm. wide; Petals, #5, 5.3 mm. × 4.5 mm. wide, yellow; Receptacle, hairy, 3 mm.; Stamens, ±16; Anthers, 0.7 mm. × 0.6 mm. wide; Ovary, many; Styles, 1 per ovary, thickest near base, tapered throughout; Achenes, 1.3 mm. × 0.8 mm. wide, attachment, lateral, rugose. Described from Coll. No. 2136, 11 July 2019.

- North Table Mountain Park, Also collected here: Boechera fendleri, Delphinium carolinianum ssp. virescens, Senecio integerrimus, and Viola nuttallii. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.26 km. north northeast of the GNIS location of Golden. Tom Schweich 2136. 11 Jul 2019. ( CAS COLO2435352^‡ JCOS s.n. KHD00074281^‡ OBI ^‡ UCR ) . .

Potentilla rivalis Nutt. Brook Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., in very wet places; Stem, erect and branched at base decumbent to ascending, proximal hairs weak, 1 mm., eglandular; Leaves, compound, palmate and ternate, petiole 0-62 mm. + blade 37 mm. × 40 mm. wide, leaflets, 3-5, both sides, green, sericeous, hairs weak; Sepals, 3 mm., green; Petals, 4 mm. × 2.5 mm. wide, yellow; Style, 0.7 mm.; Achene, 0.9 mm., light greenish-brown, smooth, maybe very minutely pappilate. Described from Coll. No. 1682.1, 28 June 2017.

- North Table Mountain Park, Southeast corner of a natural pond, in an opening between cattails. Top of North Table Mountain, along the Tilting Mesa Trail, 3.36 km. north northeast of the GNIS location of Golden. Tom Schweich 1959.3 21 Jun 2018. ( JCOS s.n. KHD00069207^‡ ) . .

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).

- North Table Mountain, 1106. 1106. Zeise, Larry Steven, 1976 1345. 1345. Kilburn, Paul D., and Sally L. White, 1992 in thickets West slopes of North Table Mountain, along the City of Golden's North Table Mountain Trail, about 1.0 km south from North Table Loop, and 2.0 km north of the GNIS location of Golden. Tom Schweich 1093. 30 Apr 2015. ( CAS UC2045766^‡ UCR266075^‡ ) . .

Prunus domestica L. European Plum. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, Mixed shrubs and grass in a ±flat area. Southeast-draining canyon on the south side of North Table Mountain, near intersection of social trail and North Table Loop, 1.85 km. northeast of the GNIS location of Golden Tom Schweich 1341. 12 May 2016. ( CS EIU028455^‡ JCOS s.n. KHD00063929^‡ ) . .

Prunus pensylvanica L. f. (Syn: Cerasus pensylvanica (L. f.) Loiseleur ) Pin Cherry. CalPhotos. Jepson eFlora. SEINet Taxon.

Small tree, 1.5-3.0 m., partially leafed out while in bloom; Branches, unarmed, peeling white, dotted; Leaves, petiole, 7-12 mm., very sparsely short hairy, some have a pair of glands at base of leaf, blade, ovate to elliptic, 25 mm. × 20-23 mm. wide, pinnately veined, margin, toothed, small glands on distal edge of each tooth, veins of young leaves sometimes hairy abaxially; Inflorescence, flowers in clusters of 5-8 on pedicels to 14 mm.; Hypanthium, 3.5 mm × 3 mm. wide, glabrous inside; Sepals, 1.5 mm., glabrous, few (2) glands on margins; Petals, 5-7 mm., white; Stamens, #12-25; Ovary, superior, glabrous; Style, #1, 4 mm., emerges from top of ovary; Fruit, unknown (Described from Coll. No. 1354, 20 May 2016 and Coll. No. 1619, 15 May 2017).

- North Table Mountain Park, Trail-side, in an area with old concrete foundations, as though planted. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 130 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1354. 20 May 2016. ( CS JCOS s.n. KHD00063914^‡ UCR278797^‡ ) . .

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.

- North Table Mountain, 1107. 1107. Zeise, Larry Steven, 1976 1346. 1346. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Mixed shrubs and grass. Southeast-draining canyon on the south side of North Table Mountain, 1.85 km. northeast of the GNIS location of Golden Tom Schweich 1340. 13 May 2016. ( CS JCOS s.n. KHD00063913^‡ UCR278790^‡ ) . .

Rosa L. Rose. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, species undetermined 1116. 1116. Zeise, Larry Steven, 1976 . .

Rosa arkansana Porter. Prairie Rose. CalPhotos. Jepson eFlora. SEINet Taxon.

Low-growing perennial, to 20 cm.; Stem, straight slender unequal prickles, present on new growth; Leaves, alternate, compound, leaflets (7)9-11, 20 mm. × 9 mm. wide, serrate, teeth dark-tipped, unclear whether there is glandular exudate, sparsely villous on both sides; Flowers, in clusters of 2-5; Sepals, 16 mm. × 3 mm. wide, abaxial, stalked glandular, adaxial, glandular hairy; Petals, 28 mm. × 21 mm. wide, color pink (Described from Coll. No. 1456, 27 June 2016).

- North Table Mountain, 1349. 1349. Kilburn, Paul D., and Sally L. White, 1992 . .

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).

- North Table Mountain, 1117. 1117. Zeise, Larry Steven, 1976 1350. 1350. Kilburn, Paul D., and Sally L. White, 1992 Rocky outcrops on the toe of a landslide. West slopes of North Table Mountain, along the City of Golden's North Table Mountain Trail, about 0.7 km south from North Table Loop, and 2.3 km north of the GNIS location of Golden. Tom Schweich 1091. 30 Apr 2015. ( CAS OBI82198^‡ UC2045767^‡ UCR266074^‡ ) .

- North Table Mountain Park, Lower Cottonwood Canyon on southeast side of North Table Mountain, about 310 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1350. 20 May 2016. ( COLO02348407^‡ CS JCOS s.n. KHD00063916^‡ ) .

Rubiaceae

Galium aparine L. (Syn: Galium aparine L. var. echinospermum (Wallr.) Farw. , Galium spurium L. ) Sticky Willy, Cleavers. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, Shade of large shrubs in ravine. Southwest side of North Table Mountain, along City of Golden North Table Mountain Trail, 2.5 km. north of the GNIS location of Golden. Tom Schweich 1395. 8 Jun 2016. ( JCOS s.n. KHD00063847^‡ UC UCR277985^‡ ) .

- North Table Mountain Park, Unnamed canyon on south side of North Table Mountain, 1.8 km. north northeast of the GNIS location of Golden. In the creek bed below North Table Loop trail. Tom Schweich 1601. 8 May 2017. ( JCOS s.n. KHD ^‡ ) . .

Galium boreale L. (Syn: Galium septentrionale Roem. & Schult. ) Bedstraw. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 40 cm.; Stems, ascending; Leaves, in whorls of 4, tips rounded, 3-nerved; Flowers, cream-colored; Fruit, short-hairy (Described from Coll. No. 2374, 23 June 2020).

- North Table Mountain, 1056. 1056. Zeise, Larry Steven, 1976 1237. 1237. Kilburn, Paul D., and Sally L. White, 1992 . .

Galium triflorum Michx. Fragrant Bedstraw. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1238. 1238. Kilburn, Paul D., and Sally L. White, 1992 .

Salicaceae

Populus angustifolia E. James. Narrowleaf Cottonwood. CalPhotos. Jepson eFlora. SEINet Taxon.

Collected and described by Edwin James of the Long Expedition, 1820.

- North Table Mountain, 1100. 1100. Zeise, Larry Steven, 1976 1366. 1366. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, as P. sargentii 1101. 1101. Zeise, Larry Steven, 1976 as P. sargentii 1367. 1367. Kilburn, Paul D., and Sally L. White, 1992 Entrance to Jefferson County Open Space, parcel owned by City of Golden. South slopes of North Table Mountain, along the road to the Golden Cliffs overflow parking, 1.20 km north northeast of the GNIS location of Golden Tom Schweich 1338. 11 May 2016. ( KHD00064102^‡ UC UCR278789^‡ ) .

- North Table Mountain Park, Group of 8-10 trees together on both sides of creek. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 400 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1351. 20 May 2016. ( CAS COLO02348399^‡ CS JCOS s.n. KHD00064103^‡ OBI83165^‡ ) . .

Populus tremuloides Michx. Quaking Aspen. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1102. 1102. Zeise, Larry Steven, 1976 . .

Salix amygdaloides Andersson. Peachleaf Willow. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial tree, Twigs, young, dark brown; Leaves, alternate, petiole, 10-12 mm., tuft of hairs adaxially, glands absent at base of leaf, blade, 80 mm. × 26 mm. wide, 3.08 × long as wide, young leaves have slightly tangled white hairs both sides, mature leaves, green adaxially, glaucus abaxially, margin, serrate, tip, acuminate; Staminate catkins (aments), peduncle, 12 mm., spike, 47 mm. × 9 mm. wide, stamens, #4-5, 4.5 mm.; Pistillate catkins, absent. (Described from Coll. No. 1886, 28 May 2018.)

- North Table Mountain, 1368. 1368. Kilburn, Paul D., and Sally L. White, 1992 . .

Salix exigua Nutt. Coyote Willow, Narrow-Leaved Willow. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial erect shrub, to 2 m.; Leaves, alternate, 21 mm. ×. 1.8 mm. wide, 11.7 ×long as wide, abaxial villous, adaxial mostly glabrous, margins entire, slightly revolute; Staminate catkins, 30 mm. × 6 mm. wide; Pistillate catkins, 42 mm. × 4 mm. wide, floral bract, 1.8 mm., capsule, 2.6 mm., glabrous (Described from Coll. No. 1880, 24 May 2018).

- North Table Mountain, 1119. 1119. Zeise, Larry Steven, 1976 1351. 1351. Kilburn, Paul D., and Sally L. White, 1992 .

- Ramstetter Reservoir, Southeast shore of Ramstetter Reservoir, northwest corner of North Table Mountain Park, 4.03 km. north of the GNIS location of Golden. Tom Schweich 1880. 24 May 2018. ( CAS JCOS s.n. KHD00069132^‡ OBI ) .

Santalaceae

Comandra umbellata (L.) Nutt. ssp. pallida (A. DC.) Piehl. (Syn: Comandra umbellata (L.) Nutt. var. pallida (A. DC.) M. E. Jones ) Pale Bastard Toadflax. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as C. umbellata 1039. 1039. Zeise, Larry Steven, 1976 as C. umbellata 1219. 1219. Kilburn, Paul D., and Sally L. White, 1992 .

Sapindaceae

Acer glabrum Torr. Rocky Mountain Maple. CalPhotos. Jepson eFlora. SEINet Taxon.

Described by Torrey (1827) from a collection by Edwin James of the Long Expedition (1820).

- North Table Mountain, 991. 991. Zeise, Larry Steven, 1976 1362. 1362. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, One of several quintessential Jefferson County taxa, as the type was collected in Platte Canyon by Dr. Edwin James of the Major Stephen H. Long expedition of 1820. Northwest side of North Table Mountain, in a small gulch just below the rim of the mesa formed by the highest lava flow in the Denver Formation. Tom Schweich 1738. 15 Aug 2017. ( CAS JCOS s.n. KHD00065319^‡ UCR ^‡ ) . .

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).

- North Table Mountain, 992. 992. Zeise, Larry Steven, 1976 1363. 1363. Kilburn, Paul D., and Sally L. White, 1992 . .

Acer saccharinum L. Silver Maple. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 993. 993. Zeise, Larry Steven, 1976 .

Saxifragaceae

Heuchera parvifolia Nutt. ex Torr. & A. Gray. Littleleaf Alumroot. CalPhotos. Jepson eFlora. SEINet Taxon.

� Inflorescence, (not secund) �

- North Table Mountain, as H. parviflora, which is not known from Colorado 1245. 1245. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Western section of North Table Mountain, on a terrace beside a northward draining unnamed watercourse, 3.2 km. north of the GNIS location of Golden. Tom Schweich 1655. 5 Jun 2017. ( JCOS s.n. KHD00065340^‡ ) Tom Schweich, with Cindy Trujillo 2137. 6/2/2021. . .

Micranthes rhomboidea (Greene) Small. (Syn: Saxifraga rhomboidea Greene ) Diamondleaf Saxifrage. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Saxifraga r. 1288. 1288. Kilburn, Paul D., and Sally L. White, 1992 .

Scrophulariaceae

Limosella aquatica L. Water Mudwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1321. 1321. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Drying pond margin. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC22 Rick Brune 24 May 1992. ( COLO00751578^‡ ) Drying muddy watercourse with Erythranthe sp. and Plagiobothrys scouleri. Rocky Mountain Front Range, center of North Table Mountain, a lava-capped mesa of Denver Formation, along Tilting Mesa Trail near Mesa Top Trail, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1696. 29 Jun 2017. ( KHD00065382^‡ ) . .

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

- North Table Mountain, 1122. 1122. Zeise, Larry Steven, 1976 1289. 1289. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Numerous plants here, many trampled by deer (?) or weed sprayers (?) Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1495. 13 Jul 2016. ( JCOS s.n. KHD00063975^‡ ) . .

Verbascum thapsus L. Common Mullein. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1150. 1150. Zeise, Larry Steven, 1976 1331. 1331. Kilburn, Paul D., and Sally L. White, 1992 .

Solanaceae

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).

- North Table Mountain, as P. hederaefolia orth. var. 1092. 1092. Zeise, Larry Steven, 1976 as P. hederaefolia orth. var. 1281. 1281. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Trailside, in grasses. Lower north slopes of North Table Mountain,500 m. south southeast of the Mesa Spur Trailhead on 58th Avenue, 4.74 km. north northeast of the GNIS location of Golden. Tom Schweich 1511. 22 Jul 2016. ( EIU028458^‡ JCOS s.n. KHD00063988^‡ OBI83335^‡ ) . .

Physalis longifolia Nutt. Longleaf Groundcherry. CalPhotos. Jepson eFlora. SEINet Taxon.

“Most specimens originally identified as P. virginiana actually belong to P. longifolia” (Ackerfield, 2015). “[P. virginiana] has many races that are often treated as varieties or even separate species, including P. longifolia Nuttall” (Weber & Wittmann, 2012).

- North Table Mountain, as P. virginiana. 1093. 1093. Zeise, Larry Steven, 1976 . .

Solanum rostratum Dunal. Buffalo Bur Nightshade. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1130. 1130. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Lower east branch of the Rimrock Trail. Tom Schweich, with Cindy Trujillo 2387. 8/13/2021. .

Ulmaceae

Ulmus . Elm. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, species undetermined 1149. 1149. Zeise, Larry Steven, 1976 . .

Ulmus americana L. American Elm. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.57 km. northwest of the Easley Road trailhead; 4.56 km. northeast of the GNIS location of Golden. Tom Schweich 1520. 29 Jul 2016. Northeast slope of North Table Mountain. along the North Table Loop, almost directly downslope of the GNIS location of North Table Mountain, 4.56 km. northeast of the GNIS location of Golden Tom Schweich 1648. 1 Jun 2017. ( JCOS s.n. ) Determination tentative. Lower northeast slopes of North Table Mountain, adjacent to North Table Loop, which has the appearance of once having been a road at this location, 4.55 km. northeast of the GNIS location of Golden. Tom Schweich 1802. 8 May 2018. ( KHD00069133^‡ ) . .

Ulmus parvifolia Jacq. Chinese Elm. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as U. parvafolia (sic) 1148. 1148. Zeise, Larry Steven, 1976 . .

Ulmus pumila L. Siberian Elm. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1369. 1369. Kilburn, Paul D., and Sally L. White, 1992 .

Verbenaceae

Verbena aristigera S. Moore. (Syn: Verbena tenuisecta Briq. ) Moss Verbena. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Open dry meadow along roadside; scattered. East side of North Table Mountain in city of Golden, accessed from Easley Rd. Found in the vicinity of a private residence, just below Jeffco open space. 13N 0481152E 4400445N. Stanley Smookler 213. 6 May 2000. ( KHD36595^‡ ) . [ Labeled Verbena tenuisecta Briquet. ] .

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.

- North Table Mountain, 1151. 1151. Zeise, Larry Steven, 1976 1329. 1329. Kilburn, Paul D., and Sally L. White, 1992 .

Violaceae

Hybanthus verticillatus (Ortega) Baill. Baby Slippers. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1246. 1246. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Disturbed trailside. Beside the Golden Cliffs Trail near the junction with the trail to the overflow parking lot, 1.80 km. northeast of the GNISS location of Golden Tom Schweich, with Cindy Trujillo 2517. 18 Jun 2021. ( Golden KHD00075591^‡ OBI183542^‡ ) . .

Viola canadensis L. (Syn: Viola rydbergii Greene , Viola scopulorum (A. Gray) Greene ) Canadian White Violet. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1305. 1305. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, 1306. 1306. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Open grasslands on top of the mesa. Near intersection of North Table Loop and Golden Cliffs Trail, 1.8 km north of the GNIS location of Golden. Tom Schweich 1094. 30 Apr 2015. ( JCOS s.n. KHD56938^‡ ) Larger plants than typically seen around Golden. Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1812.1 10 May 2018. ( EIU JCOS s.n. KHD00069141^‡ ) .

Vitaceae

Parthenocissus quinquefolia (L.) Planch. (Syn: Parthenocissus inserta (A.Kern.) Fritsch ) Virginia Creeper. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as P. inserta 1274. 1274. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Current year tendrils undeveloped, previous year tendrils appear to have adhesive pads. Unnamed canyon on south side of North Table Mountain, 1.8 km. north northeast of the GNIS location of Golden. In the creek bed below North Table Loop trail. Tom Schweich 1600. 8 May 2017. ( JCOS s.n. ) . .

Vitis riparia Michx. Riverbank Grape. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1154. 1154. Zeise, Larry Steven, 1976 .

Zygophyllaceae

Tribulus terrestris L. Puncture Vine. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, iNaturalist Observation 185157769. Tom Schweich 3462. 9/26/2023. .

- North Table Mountain Park, All visible plants uprooted and removed. Colorado Noxious Weed List C. Beside the Golden Cliffs trail, at the base of the lower basalt flow, 210 m. north of the Golden Cliffs trailhead, 1.5 km. northeast of the GNIS location of Golden. Tom Schweich 1547. 1 Sep 2016. ( EIU JCOS s.n. KHD00063966^‡ ) .

Agavaceae

Yucca glauca Nutt. Soapweed Yucca. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1157. 1157. Zeise, Larry Steven, 1976 1361. 1361. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1610. 5/24/2018. .

Alliaceae

Allium cernuum Roth. Nodding Onion. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing among rocks at top of north-facing slope. Northern portion of North Table Mountain, 215 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1235. 20 Jul 2015. ( JCOS s.n. KHD00060591^‡ UC UCR267459^‡ ) . .

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

- North Table Mountain, White flowers. Tom Schweich 1556. 5/22/2017. .

- North Table Mountain Park, Very thin soil on the volcanic caprock of the mesa. Mesa top, southeast portion of North Table Mountain, 3.4 km northeast of the GNIS location of Golden. Tom Schweich 1134. 9 Jun 2015. ( JCOS s.n. KHD56967^‡ UCR266080^‡ ) Moderate slope above rock outcrop. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 250 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1353. 20 May 2016. ( CAS CS ) .

Anthericeae

Leucocrinum montanum Nutt. ex A. Gray. Star Lily. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1071. 1071. Zeise, Larry Steven, 1976 1251. 1251. Kilburn, Paul D., and Sally L. White, 1992 Two plants, one in bloom, one in bud. Tom Schweich 1489. 3/16/2017. .

- North Table Mountain Park, Grassy slopes above the trail, but the grass is very short because it is still very early spring here; more common on slopes above. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 200 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1311. 12 Apr 2016. ( CAS JCOS s.n. KHD00063421^‡ ) Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north of the GNIS location of Golden Tom Schweich 1809. 10 May 2018. ( CDA0052343^‡ COLO02348159^‡ ) .

Asparagaceae

Asparagus officinalis L. Asparagus. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1017. 1017. Zeise, Larry Steven, 1976 Tom Schweich 1557. 5/22/2017. .

Commelinaceae

Tradescantia occidentalis (Britton) Smyth. Prairie Spiderwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1145. 1145. Zeise, Larry Steven, 1976 1301. 1301. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Northern portion of North Table Mountain, 175 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1234. 20 Jul 2015. ( KHD00060593^‡ ) .

Cyperaceae

Carex L. Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Carex (Rossii group) 1029. 1029. Zeise, Larry Steven, 1976 Tom Schweich, with Cindy Trujillo 2514.1 18 Jun 2021. ( Discarded. ) . .

Carex brevior (Dewey) Mack. Shortbeak Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1145, 15 June 2015, characters observed: Grass-like perennial, to 75 cm.; Leaves, basal and lower cauline; Inflorescence, terminal, multiple individually distinct spikelets; Bracts, 9 mm., <inflorescence and spikelets, lacking sheath, strong central vein, Spikelets, 4-6 per stem, 10 mm. × 5 mm. wide, gynecandrous (staminate below, pistillate above); Scales, thin, <perigynia; Perigynia, 4.5 mm. × 3 mm. wide, 1.5 × long as wide, glabrous, margin, ±winged, entire below, serrulate above, beak, 1.4 mm., flat, serrulate to tip; Stigmas, 2; Achene, 2 mm. × 1.5 mm. wide, lenticular. Described from Coll. No. 1145, 15 June 2015.

- North Table Mountain, Southwest slopes of North Table Mountain, along an ephemeral stream, about midway between the North Table Mountain Trail below and the Climbing Access Trail above, 1.78 km. north of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2514. 18 Jun 2021. ( Golden ) .

Carex douglasii Boott. Douglas Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1378. 1378. White, Sally, and Loraine Yeatts, 1994 . .

Carex duriuscula C.A. Mey. (Syn: Carex stenophylla Wahlenb. , Carex stenophylla Wahlenb. ssp. eleocharis (L. H. Bailey) Hult幯 ) Needleleaf Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as C. stenophylla ssp. eleocharis 1379. 1379. White, Sally, and Loraine Yeatts, 1994 . .

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.

- North Table Mountain, as C. heliophila 1161. 1161. Kilburn, Paul D., and Sally L. White, 1992 Beside trail, 8 plants in small group, staminate flowers only, lowest southwest slopes. Tom Schweich 1584. 3/14/2018. Southwest corner of North Table Mountain, exposed sites on lower slopes, near City of Golden North Table Mountain trail, 1.23 km. north of the GNIS location of Golden. Tom Schweich 1777. 11 Apr 2018. ( CAS JCOS s.n. KHD00068992^‡ UCR ^‡ ) .

- North Table Mountain Park, Determination tentative. Along the old Cottonwood Canyon trail, trailside and among short grasses. Tom Schweich 1585. 3/17/2018. Numerous plants in east-facing slope with short grasses and forbs. Tom Schweich 1592. 4/16/2018. With Berberis repens. Early anthesis at this slightly higher elevation, pistillate spikelets just beginning to develop. Upper part of Cottonwood Canyon, a relatively large canyon draining North Table Mountain to the southeast, on top of small rise along an old social trail that predates Open Space trail construction, 3.07 km. northeast of the GNIS location of Golden. Tom Schweich 1784. 16 Apr 2018. ( EIU JCOS s.n. KHD00068993^‡ UC ) Collected with Phlox multiflora and Poa fendleriana Lower north slopes of North Table Mountain, on the nose of a small ridge in the corner of the North Table Loop, 4.49 km. north northeast of the GNIS location of Golden Tom Schweich 1816. 11 May 2018. ( CS JCOS s.n. ) . .

Carex nebrascensis Dewey. Nebraska Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1924, 3 June 2018, characters observed: Perennial sedge, sometimes growing in running water; Habit, rhizomatous; Culms, to 50 cm., lightly scabrous below the head; Leaves, 4.3 mm. wide, green, sheaths, white-hyaline, ventrally smooth; Inflorescence, 120 mm. × 15 mm. wide, #3-5 spikes per culm, separated; Proximal bract, leaf-like, 130 mm., nearly equaling the inflorescence; Spikes, differentiated, terminal spike staminate, lateral spikes androgynous to proximal spikes pistillate; Pistillate spike, 30-40 mm. × 5-7.5 mm. wide, ength 6× width, peduncle 6 mm., stout, erect; Pistillate scales, 5 mm., including awn 1.2 mm., >perigynia, brown-black, mid-vein green; Perigynia, many per spike, body 1.8-3.0 mm. + beak 0.3-0.4 mm. = 2.1-3.4 mm. × 1.2-1.5 mm. wide, wingless, glabrous, faces veined, beak bidentate, ciliolate between teeth; Achene, 1.4 mm. × 0.9 mm. wide, biconvex; Stigma, #2. (Described from Coll. No. 508, 2 Aug 2007, Mono County, CA, and Coll. No. 1123, 1924, and 2489, Jefferson County, CO.)

- North Table Mountain, 1162. 1162. Kilburn, Paul D., and Sally L. White, 1992 . .

Carex occidentalis L. H. Bailey. Western Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial sedge; Habit, caespitose; Culms, to 50 cm., slightly scabrous especially below the inflorescence; Leaves, 1.7 mm. wide, green, sheaths, white-hyaline, ventrally smooth; Inflorescence, 29 mm. × 10 mm. wide, loosely clustered; Spikes, identical appearing, 6 mm. × 5 mm. wide, terminal and lateral androgynous (there are no anthers, but the flowers at the top of each spike contain white filaments); Bracts, 5 mm., proximal, 10 mm., <inflorescence, leaf-like; Pistillate scales, 3.5 mm., <perigynia, mid-vein green, brown laterally, hyaline margin; Perigynia, #12 per spike, 4 mm. × 1.6-1.8(2) mm. wide, weakly winged, ±veinless, glabrous, beak, 1 mm., flattish, dorsally bulged and the margin is displaced but not onto the ventral face; Achene, 2.3 mm. × 1.5 mm. wide, biconvex, short oblong; Stigmas, #2; Anthers, n/a; (Described from Coll. No. 2056, 4 Jun 2019, but see also Coll. No. 1913.)

- North Table Mountain, Small grassy areas on the upper southwest slope of North Table Mountain, hummocky terrain, probably in the head of one or more landslides, 1.98 km. north of the GNIS location of Golden. Tom Schweich 2056. 4 Jun 2019. ( KHD00070515^‡ ) . .

Carex praegracilis W. Boott. Clustered Field-Sedge. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 40-60 cm., from rhizomes; Rhizomes and culm bases ±black; Culm, ridges scabrous; Leaves, mostly basal or near basal, sheath, front hyaline without veins, inner band not elongated, ligule, 2 mm., blade, flat or revolute, 3 mm. wide,; Inflorescence, 25-30 mm. × 5-9 mm. wide, closely clustered; Spikes, 6-11 per culm, differentiated, androgynous, or nearly all staminate with a few pistillate flowers in some spikes; Bract, 9 mm., margin chartaceous proximal ⅔, proximal, 6.5 mm., leaf-like; Pistillate Scales, 5.5 mm., >perigynia, ±clasping perigynia; Perigynia, #1(2) in some spikes, more numerous in others, 2.5-3.5 mm. × 1.2 mm. wide, adaxial veined or vein-less, abaxial veined, beak 1.5-1.7 mm., serrulate; Achene, 1.7 mm, × 1.1 mm. wide, (nearly) filling the body of the perigynia, biconvex; Stigma, #2; Anthers, 1.3 mm., apex bristly. (Described from Coll. No. 1881, 24 May 2018 and Coll. No. 1928, 8 June 2018).

- North Table Mountain Park, Small patch in head of landslide, growing around a large boulder. Beside the Cottonwood Canyon Trail, about 2/3 of the way up Cottonwood Canyon on the southeast flank of North Table Mountain, 3.13 km. northeast of the GNIS location of Golden. Tom Schweich 1806. 7 May 2018. ( CS JCOS s.n. KHD00068991^‡ OBI158896^‡ ) In the bottom of a watercourse draining to an unnamed canyon on the south side of the mesa. Top of North Table Mountain, southwest quadrant, 2.02 km. north of the GNIS location of Golden. Tom Schweich 1928. 8 Jun 2018. ( COLO02348241^‡ JCOS s.n. KHD00069540^‡ UC ) .

- Ramstetter Reservoir, Southeast shore of Ramstetter Reservoir, northwest corner of North Table Mountain Park, 4.03 km. north of the GNIS location of Golden. Tom Schweich 1881. 24 May 2018. ( JCOS s.n. KHD00069539^‡ OBI144916^‡ ) . .

Eleocharis acicularis (L.) Roem. & Schult. Needle Spikerush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1163. 1163. Kilburn, Paul D., and Sally L. White, 1992 . .

Eleocharis compressa Sull. (Syn: Eleocharis elliptica Kunth var. compressa (Sull.) Drapalik & Mohlenbr. ) Flatstem Spikerush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as E. elliptica var. compressa 1380. 1380. White, Sally, and Loraine Yeatts, 1994 . .

Eleocharis macrostachya Britton. Common Spike-Rush. CalPhotos. Jepson eFlora. SEINet Taxon. Treated as a synonym of E. palustris by Ackerfield (2015).

- North Table Mountain, 1165. 1165. Kilburn, Paul D., and Sally L. White, 1992 . .

Eleocharis palustris (L.) Roem. & Schult. Common Spikerush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In the head of a gulch draining North Table Mountain to the east, 1.8 km north of the GNIS location of Golden. Tom Schweich 1275. 30 Jul 2015. Running water. Southern portion of North Table Mountain just above a break in slope above an unnamed canyon draining into Clear Creek, 1.85 km. north northeast of the GNIS location of Golden. Tom Schweich 1602. 8 May 2017. ( JCOS s.n. KHD00065719^‡ ) . .

Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer. (Syn: Eleocharis coloradoensis (Britton) Gilly ) Dwarf Spikerush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as E. coloradoensis 1164. 1164. Kilburn, Paul D., and Sally L. White, 1992 . .

Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller. (Syn: Scirpus americanus Pers. ) Chairmaker's Bulrush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Scirpus a. 1120. 1120. Zeise, Larry Steven, 1976 . .

Schoenoplectus lacustris (L.) Palla. (Syn: Scirpus lacustris L ) Lakeshore Bulrush. CalPhotos. Jepson eFlora. SEINet Taxon. This bulrush is native to Europe and rare in Colorado. The only collections have been made at the Majestic View Nature Center, about 10 km. northwest of North Table Mountain.

- North Table Mountain, as Scirpus l. 1121. 1121. Zeise, Larry Steven, 1976 . .

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

- North Table Mountain, as Scirpus lacustris validus (sic) 1171. 1171. Kilburn, Paul D., and Sally L. White, 1992 .

Iridaceae

Sisyrinchium montanum Greene. Rocky Mountain Blue-Eyed Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing in a wet Carex meadow along a pond shore on top of the mesa. North Table Mountain. On top of the mesa. Mark Duff 34. 16 Jun 1992. ( COLO 00414938^‡ ) .

Juncaceae

Juncus arcticus (Willd.) Trautv. Arctic Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 30 cm., rooting at lower nodes; Leaves, sheath, 35 mm., not terminating in a bristle tip, auricles, 1.4-1.7 mm., blade, 95 mm., terete above the sheath, septate; Inflorescence, appears terminal, subtending bract 26 mm., <inflorescence, not appearing to be a continuation of stem, paniculate, many heads, flowers not subtended by a pair of scarious bracteoles, bracts subtending each flower brown; Tepals, 2.3 mm., brown, margins scarious; Stamens, #6; Capsule, 3 mm., ellipsoid, exserted 1 mm. beyond tepals. Generally thought to be circumboreal, although listed as alien by Weber & Wittmann (2012). (Described from Coll. No. 2426, 17 Aug 2020).

- North Table Mountain Park, In the head of a gulch draining North Table Mountain to the east, 1.8 km north of the GNIS location of Golden. Tom Schweich 1274. 30 Jul 2015. . .

Juncus arcticus (Willd.) Trautv. var. balticus (Willdenow) Trautvetter. (Syn: Juncus arcticus (Willd.) Trautv. ssp. ater (Rydb.) Hult幯 , Juncus ater Rydb. , Juncus balticus Willd. , Juncus balticus Willd. ssp. ater (Rydb.) Snogerup , J. balticus Willd. var. montanus Engelm. ) Arctic Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 1 m.; Leaves, basal sheaths only; Inflorescence, appears lateral; Bract, appearing to be extension of stem, 14-18 cm., >stem; Flowers, many per stem, (obs. 20); Stamens, 5. Described from Coll. No. 1269, 29 Jul 2015.

- North Table Mountain, as J. a. var. ater 1167. 1167. Kilburn, Paul D., and Sally L. White, 1992 as J. balticus ssp. ater 1382. 1382. White, Sally, and Loraine Yeatts, 1994 . .

Juncus bufonius L. Toad Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 15 cm., of wet places; Leaves, basal and cauline, sheath 19-20 mm., not bristle-tipped, auricles 0, blade, 45 mm., rolled, not equitant (leaves of two ranks each folded in half); Inflorescence, >½ total height of plant, appears terminal, bract erect, ±=inflorescence, but does not appear be a continuation of stem, 12-15 heads per inflorescence; Perianth, 3-5-4.0 mm.; Capsule, 3 mm. × 1.5 mm. wide, oblong; Seeds, 0.3 mm., brown, not tailed. Described from Coll. No. 1203, 12 Jul 2015.

- North Table Mountain, 1190. 1190. Kilburn, Paul D., and Sally L. White, 1992 .

Juncus interior Wiegand. Inland Rush. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, 1168. 1168. Kilburn, Paul D., and Sally L. White, 1992 Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1527. 5 Aug 2016. ( JCOS s.n. KHD00063447^‡ ) Previously collected here: Rumex crispus, Poa palustris, Elymus trachycaulus, and Thlaspi arvense. Southwest slope of North Table Mountain, where a spring-fed stream crosses the City of Golden North Table Mountain Trail, forming a very small wetland, 1.66 km. north of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2513. 18 Jun 2021. ( Golden ) .

- North Table Mountain Park, 3.60 km. northeast of the GNIS location of Golden. Tom Schweich 1804. 8 May 2018. ( Discarded, immature. ) .

Liliaceae

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

- North Table Mountain, 1027. 1027. Zeise, Larry Steven, 1976 Mixed grasses and forbs. Southwest slope of North Table Mountain, just below the basalt rim, where a social trail climbs through the rim from the City of Golden North Table Mountain trail, 1.7 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1444. 22 Jun 2016. ( JCOS s.n. KHD00063426^‡ ) . .

Muscari botryoides (L.) Mill. Common Grape Hyacinth. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Near a former home site, probably naturalized. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1310. 12 Apr 2016. ( JCOS s.n. KHD00063424^‡ ) .

Melanthiaceae

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

- North Table Mountain, as Zigadenus venenosus 1307. 1307. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Many plants, mostly above the trail. Tom Schweich 1606. 5/7/2018. Steep, northeast slope. East side of North Table Mountain, near the Easley Road trailhead, on an old abandoned road above North Table Loop, 3.8 km. northeast of the GNIS location of Golden. Tom Schweich 1627. 22 May 2017. ( CDA0050092^‡ JCOS s.n. KHD00065342^‡ ) [ Original determination: Zigadenus paniculatus var. gramineus. ] In a small wedge of Jefferson County lands, between two City of Golden-owned parcels. Small grassy areas on the upper southwest slope of North Table Mountain, hummocky terrain, probably in the head of one or more landslides, 1.95 km. north of the GNIS location of Golden. Tom Schweich 2055. 4 Jun 2019. ( CS JCOS s.n. REGIS ) .

Poaceae

. Grass Family. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tall, robust grass, not Big Blue Stem. Tom Schweich 1565. 6/1/2017. . .

Aegilops cylindrica Host. (Syn: Cylindropyrum cylindricum (Host) �.L饘e ) Jointed Goat Grass. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1182. 1182. Kilburn, Paul D., and Sally L. White, 1992 Highest prairie mixed with foothill shrubs, also collected nearby Sphaeralcea coccinea, Linaria dalmatica, and Thinopyrum intermedium. Lower southwest slopes of North Table Mountain, along the lower portion of the City of Golden North Table Mountain trail, 1.9 km. north of the GNIS location of Golden. Tom Schweich 2050. 4 Jun 2019. ( CAS REGIS UC ) .

- North Table Mountain Park, Trailside, along the Mesa Top Trail, just below the east rim of North Table Mountain, 3.8 km northeast of the GNIS location of Golden. Tom Schweich 1139. 9 Jun 2015. ( JCOS s.n. KHD56845^‡ UCR265715^‡ ) . .

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

- North Table Mountain, as A. desertorum 997. 997. Zeise, Larry Steven, 1976 1183. 1183. Kilburn, Paul D., and Sally L. White, 1992 . .

Agrostis gigantea Roth. (Syn: Agrostis alba L. ) Redtop. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 95 cm., rhizomatous; Roots, fibrous; Stem, herbaceous; Leaves, blade and sheath differentiated, sheath, 80 mm., open, glabrous, ligule, membranous, 4 mm., auricles, absent, blade, 70 mm. × 2 mm. wide, flat, scabrous; Inflorescence, 1 per culm, >leaves, panicle, 15 cm. × 4 cm. wide, 5-7 branches; Rachis, not extended, sparsely scabrous; Spikelets, many, 2.3 mm. × 0.7 mm. wide, similar, borne singly, pedicels, 0.7-2.0 mm., 1-flowered; Compression, unremarkable; Disarticulation, above the glumes; Glumes, lower, 1.8 mm., veins, #1, sparsely scabrous, upper, 1.8 mm., >lowest floret, veins, #3, obscure, ±parallel; Lemma, 1.7 mm., <glumes, membranous, veins, ≤3; Palea, 1.0 mm., <lemma; Anthers, #3, 1.2 mm. (Described from Coll. No. 1980, 13 July 2018.)

- North Table Mountain Park, Wet meadow on a small draw on top of mesa. North Table Mountain, on top of mesa. TRS: T3S R70W SEC14 Mark Duff 86. 20 Jun 1992. ( COLO 00452235^‡ ) . .

Alopecurus aequalis Sobol. Shortawn Foxtail. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1159. 1159. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Growing in shallow water along margins of man-made, spring-fed pond 13N 0481839E 4402905N. Rick Brune 25 May 2001. ( KHD36827^‡ ) . .

Alopecurus geniculatus L. Water Foxtail. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing along shallow water of a man-made spring-fed pond. T3S R70W S22. Rick Brune 25 May 2001. ( COLO00556167^‡ CS82883^‡ GREE5212^‡ ) [ Possibly the same collection as KHD6246, which is determined as A. aequalis. ] Along a watercourse that drains an ephemeral pond south to Clear Creek. Top of North Table Mountain, southwest quadrant, 2.22 km. north of the GNIS location of Golden. Tom Schweich 1930.2 8 Jun 2018. ( JCOS s.n. KHD00069369^‡ ) . .

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).

- North Table Mountain, 1004. 1004. Zeise, Larry Steven, 1976 1177. 1177. Kilburn, Paul D., and Sally L. White, 1992 Collected with Mirabilis linearis. South side of North Table Mountain, below Climbing Access Trail near the top of the slope; 260 m. southeast of the USBR monument designated “North Table,” 1.38 km. north northeast of the GNIS location of Golden. Tom Schweich 1524. 5 Aug 2016. ( EIU JCOS s.n. KHD00063433^‡ ) . .

Aristida purpurea Nutt. var. longiseta (Steud.) Vasey. (Syn: Aristida longiseta Steud. ) Purple Threeawn. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1140, 9 Jun 2015, characters observed: Perennial grass, 20 cm. when collected, possibly elongating in maturity; Inflorescence, panicle, branches not pulvinate, i.e., no swelling at bases of pedicels; Axis ±straight; Pedicels, stiff, ±straight; Spikelets with 1 floret; Glumes, 2, lower, 11 mm., veins 1, upper, 20 mm.; Lemma, 11 mm., smoothly transitioning to awns without twisted column, apex 0.4-0.6 mm. wide, awns, 3, 58 mm., straight. Described from Coll. No. 1140, 9 Jun 2015, determined var. longiseta per length of upper glumes and dimensions of lemma.

- North Table Mountain, As A. longiseta Steud. 1009. 1009. Zeise, Larry Steven, 1976 As A. longiseta Steud. 1160. 1160. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, West facing cliff rim. North Table Mountain. TRS: T3S R70W SEC21. Mark Duff 14. 6 Jun 1992. ( COLO00473314^‡ ) Scattered beside and across the Mesa Top Trail at a small switchback, 250 m east of and below the east rim of North Table Mountain, 3.9 km northeast of the GNIS location of Golden. Tom Schweich 1140. 9 Jun 2015. ( JCOS s.n. KHD56836^‡ UCR265716^‡ ) Among short grasses in a small backslope from a promontory on the northwest side of the mesa. Tom Schweich 1568. 6/5/2017. . .

Bouteloua curtipendula (Michx.) Torr. Sideoats Grama. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1022. 1022. Zeise, Larry Steven, 1976 1178. 1178. Kilburn, Paul D., and Sally L. White, 1992 . .

Bouteloua gracilis (Kunth) Lag. ex Griffiths. (Syn: Chondrosum gracile Kunth ) Blue Grama. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1023. 1023. Zeise, Larry Steven, 1976 1179. 1179. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, North of the radio tower at the northern top of mesa, just outside the radio tower exclosure, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1227. 20 Jul 2015. ( CAS JCOS s.n. KHD00060583^‡ UC UCR267455^‡ ) . .

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).

- North Table Mountain, 1185. 1185. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Common. North Table Mountain. TRS: T3S R70W S22. R. J. Rondeau, with C. A. Pague, M. A. Duff. 9268. 16 Jun 1992. ( COLO00828087^‡ ) . .

Bromus japonicus Thunb. Japanese Cheat Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1207, 13 Jul 2015, characters observed: Annual grass, to 40 cm.; Leaves, sheath, 60 mm. closed + 12 mm. open, pilose (but not densely so), ligule, membraneous, + some hairs, blade, hairy; Inflorescence, panicle, >leaves; Pedicel, 20 mm.; Spikelets, 1-3 per panicle branch, 22 mm. × 6 mm. wide, elliptical, drooping; Glumes, #2, <lowest floret, lower, 4.5 mm., veins 3, upper, 5.5 mm., veins 5; Rachilla, short hairy; Callus, glabrous; Florets, #12, 2-ranked, closely held hiding rachilla; Disarticulation between florets; Lemma, 8 mm. × 4 mm. wide, margin, hyaline, 0.5 mm., tip bifid, awn, #1, 5-12 mm. long, mid-spikelet awns longest, flattened at base, not twisted, attached near bifid tip. Described from Coll. No. 1207, 13 Jul 2015.

- North Table Mountain, 1024. 1024. Zeise, Larry Steven, 1976 1187. 1187. Kilburn, Paul D., and Sally L. White, 1992 .

Bromus polyanthus Scribn. ex Shear. Great Basin Brome. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, Disturbed area at edge of dressage arena. Golden, Table Mountain Ranch, 19000 W 58th Ave. 13N 0481925E 4405578N. Janet L. Wingate 2420. 12 Jun 1983. ( KHD21828^‡ ) . .

Bromus tectorum L. (Syn: B. tectorum L. var. glabratus Spenn. ) Cheat Grass. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual grass, to 30 cm.; Leaves, Sheath, 50 mm., closed proximal ⅔, open distally, Ligule, membraneous, 1 mm.; Blade, 60 mm.; Inflorescence, open panicle, rachis and pedicels short hairy, Spikelets, 1 per node, 15 mm., laterally compressed; Glumes, 2, sparsely hairy, margins scarious, lower, 2.3 mm., veins indistinct, upper, 4.5 mm. Callus, glabrous, very short, Florets, ±6, Lemma, 6.5 mm., 0.7 from mid-vein to margin, back rounded, sparsely hairy, tip, forked, teeth 1 mm., awned from near tip, awn, 5-7 mm.; Anthers, 3, 0.4 mm. Described from Coll. No. 1112, 26 May 2015. Dimensions are small for B. tectorum, perhaps because of the early date of collection.

- North Table Mountain, 1025. 1025. Zeise, Larry Steven, 1976 1188. 1188. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1960.1 21 Jun 2018. . .

Buchloe dactyloides (Nutt.) Engelm. (=Bouteloua dactyloides (Nutt.) J.T. Columbus) Buffalo Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1026. 1026. Zeise, Larry Steven, 1976 1180. 1180. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, North side of North Table Mountain, in short vegetation on road to Table Rock water tank, 3.6 km. north of the GNIS location of Golden. Tom Schweich 1690. 29 Jun 2017. ( JCOS s.n. KHD00065153^‡ UC ) . .

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.

- North Table Mountain Park, Northwest side of North Table Mountain, southwest-facing slope above canyon, on the edge of the disturbed construction area for the underground water tank and 120 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1389. 1 Jun 2016. ( CAS COLO02348365^‡ CS JCOS s.n. KHD00063434^‡ OBI83135^‡ ) . .

Echinochloa crus-galli (L.) P. Beauv. Barnyardgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1046. 1046. Zeise, Larry Steven, 1976 . .

Elymus albicans (Scribn. & J.G.Sm.) �.L饘e. (Syn: Agropyron albicans Scribn. & J.G.Sm. ) Montana Wild Rye. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Agropyron ablicans (sic) 996. 996. Zeise, Larry Steven, 1976 . .

Elymus canadensis L. Canadian Wildrye. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 0.7-1.2 m., non-rhizomatous; Culm, cauline nodes hidden by sheath; Inflorescence, terminal spike, 20 cm. × 1.5 cm. wide, ±erect to curving to drooping; Rachis, mostly glabrous, internodes, 5 mm.; Spikelets, sessile, 2 per node, 15 mm. × 5 mm. wide (excluding awns), ascending; Glumes, #2, 21-25 mm., nearly subulate, flattened and slightly broadened above base, indistinct body 8-10 mm. × 1 mm. wide + awn 14-15 mm., veins 5?, entire, scabrous; Florets, #5, bisexual; Rachilla, short hairy; Callus, glabrous; Lemma, 10-13 mm., veins 5, rounded, hairy, awns, #1, 22-35 mm., curving when dry; Palea, 9.5 mm.; Stamens, #3, 4 mm. Described from Coll. Nos. 1237 and 1699.

- North Table Mountain, 1047. 1047. Zeise, Larry Steven, 1976 1166. 1166. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Northern portion of North Table Mountain, beside the Mesa Top Trail in a small valley below the rim of the mesa, 195 m west of radio tower, 3.25 km north of the GNIS location of Golden. Tom Schweich 1237. 20 Jul 2015. ( JCOS s.n. KHD00062261^‡ UC ) . .

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.

- North Table Mountain, as Sitanion longifolium 1129. 1129. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Very common perennial on mesa top. North Table Mountain. TRS: T3S R70W S22 R.J. Rondeau, with C.A. Pague, M.A. Duff. 9260. 16 Jun 1992. ( COLO00828053^‡ ) . .

Elymus glaucus Buckley. Blue Wild Rye. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1048. 1048. Zeise, Larry Steven, 1976 . .

Elymus trachycaulus (Link) Gould ex Shinners. Slender Wheatgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, 75-100 cm., probably not rhizomatous, generally glabrous except as noted; Leaves, sheath, 130 mm., open, ligule, membraneous, auricles, small, 0-1 mm., blade, 25-200 mm. × 3.5 mm. wide, green, flat, scabrous; Inflorescence, 1 per culm, bi-lateral spike, 110 mm × 6 mm. wide; Rachis, internode 4.5 mm.; Spikelets, many, mostly 1 per node, about 1/3 have 2 per node, 17-21 mm. × 2.5-3.5 mm. wide, exclusive of awns, compression, weakly lateral; Disarticulation, between the florets; Glumes, #2, ±equal, lower, 11 mm. × 1.5 mm. wide + awns 2.0-2.5 mm., not quite straight, thick, tough, not keeled, veins, 5, prominent, margins, widest at middle, upper, 13 mm. × 1.8 mm. wide + awn 1.8 mm., veins, 7, >lowest floret; Florets, #4-8, lower bisexual, uppermost sterile; Callus, short straight white hairs; Lemma, rolled, 9-10 mm. + awn 3-22 mm., slightly curved, attached, end, longitudinally symetric, tip, bifid; Palea, 9 mm., <lemma, white except veins green and ciliate, tip, bifid, veins, ciliate; Anthers, 3 mm. or shriveled; Achene, 4 mm., green (Described from Coll. No. 1528, 5 August 2016, and Coll. No. 2647, 5 August 2022.)

- North Table Mountain, as Agropyron t. 999. 999. Zeise, Larry Steven, 1976 Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1528. 5 Aug 2016. ( EIU JCOS s.n. KHD00063436^‡ ) .

Eriocoma hymenoides (Roem. & Schult.) Rydb. (Syn: Achnatherum hymenoides (Roem. & Schult.) Barkworth , Oryzopsis hymenoides (Roem. & Schult.) Ricker , Stipa hymenoides Roem. & Schult. ) Indian Rice Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Oryzopsis h. 1085. 1085. Zeise, Larry Steven, 1976 as Oryzopsis h. 1170. 1170. Kilburn, Paul D., and Sally L. White, 1992 . .

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

- North Table Mountain, as Stipa robusta 1136. 1136. Kilburn, Paul D., and Sally L. White, 1992 as Stipa robusta 1370. 1370. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1493. 13 Jul 2016. ( JCOS s.n. KHD00063431^‡ OBI83341^‡ ) Top of North Table Mountain, in mixed grasses near areas of bare basalt, 150 m. northwest of Lichen Peak, 2.7 km. north of the GNIS location of Golden. Tom Schweich 1740. 15 Aug 2017. ( CAS UCR ^‡ ) Found at several places along this trail. Top of North Table Mountain, toward the east side, along the Rim Rock Trail near its junction with the Mesa Top Trail, 4.85 km. northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2682. 13 Aug 2021. ( Golden ) Found at several places along this trail. Top of North Table Mountain, toward the east side, along the Rim Rock Trail near its junction with the Mesa Top Trail, 4.96 km. northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2683. 13 Aug 2021. ( COLO2718344^‡ Golden ) . .

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

- North Table Mountain, as Stipa scribneri 1371. 1371. Kilburn, Paul D., and Sally L. White, 1992 . .

Festuca L. Fescue. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich, with Cindy Trujillo 2136. 6/2/2021. . .

Glyceria striata (Lam.) Hitchc. Striate Manna Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain Park, Wet seep near small stream. North Table Mountain, SE area. 13N 0482380E 4402806N. Janet L. Wingate 5141. 14 May 1988. ( KHD28186^‡ ) Very small perennial wetland, grass forming tussocks in an area several meters across. Southern part of the mesa where several watercourses join to enter an unnamed canyon draining southeast to Clear Creek, 1.8 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1446. 22 Jun 2016. ( JCOS s.n. KHD00063439^‡ UCR278010^‡ ) . .

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).

- North Table Mountain, as Stipa comata 1372. 1372. Kilburn, Paul D., and Sally L. White, 1992 as Stipa comata 1373. 1373. Zeise, Larry Steven, 1976 Highest prairie mixed with foothill shrubs, also collected nearby: Aegilops cylindrica, Sphaeralcea coccinea, Linaria dalmatica, and Thinopyrum intermedium. Lower southwest slopes of North Table Mountain, along the lower portion of the City of Golden North Table Mountain trail, 1.9 km. north of the GNIS location of Golden. Tom Schweich 2051. 4 Jun 2019. ( CAS CS EIU UCR ) .

- North Table Mountain Park, Atop mesa. Abundant in northern part of mesa. North Table Mountain. TRS: T3S R70W S21. R.J. Rondeau, with C.A. Pague, M.A. Duff 9258. 16 Jun 1992. ( COLO00828194^‡ ) Southeast exposure, drier areas. Top of North Table Mountain, southwest quadrant, 2.09 km. north of the GNIS location of Golden. Tom Schweich 1929. 8 Jun 2018. ( JCOS s.n. KHD00069341^‡ UC ) Gentle eastern slope. Top of North Table Mountain, along the Tilting Mesa Trail, 2.54 km. north northeast of the GNIS location of Golden. Tom Schweich 1957. 21 Jun 2018. ( CDA0052364^‡ CS REGIS ) . .

Hordeum brachyantherum Nevski. Meadow Barley. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 60 cm.; Leaves, sheath, 8 cm., glabrous, ligule, membraneous, 0.5 mm., auricles, unremarkable, blade, 11 cm., flat; Inflorescence, single spikes per culm, 9 cm., × 3 cm. wide, 2-ranked, fully exserted at maturity; Spikelets, 3 per node; Disarticulation, at nodes of rachis; Lateral spikelets, pedicelled, reduced, sterile, glumes, 18-20 mm., awn-like, scabrous at base; Central spikelet, glumes, 21 mm., similar in shape to lateral glumes, lemmas, 5 mm., awn, #1, 21 mm. Described from Coll. No. 1214, 16 Jul 2015.

- North Table Mountain, Table Mountain Ranch, S of horse barn; 19000 W 58th Ave, Golden. 13N 0485676E 4405550N. Janet L. Wingate 2475. 24 Jun 1983. ( KHD21560^‡ ) . .

Hordeum jubatum L. Foxtail Barley. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Top of North Table Mountain, south-central area, in an ephemeral pond that has been enhanced by a small rock dam, 2.35 km. north northeast of the GNIS location of Golden. Tom Schweich 1931. 8 Jun 2018. ( COLO02348258^‡ JCOS s.n. KHD00069164^‡ OBI177887^‡ UC ) Top of North Table Mountain, south-central area, in an ephemeral pond that has been enhanced by a small rock dam, 2.35 km. north northeast of the GNIS location of Golden. Tom Schweich 1932. 8 Jun 2018. ( CDA0054175^‡ CS JCOS s.n. KHD00069165^‡ ) . .

Hordeum murinum L. (Syn: Critesion murinum (L.) �.L饘e ) Mouse Barley. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as H. glaucum 1189. 1189. Kilburn, Paul D., and Sally L. White, 1992 . .

Hordeum pusillum Nutt. (Syn: Critesion pusillum (Nutt.) �.L饘e ) Little Barley. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, Growing near dressage arena. Table Mountain Ranch, 19000 West 58th Avenue, Golden. 13N 0481952E 4405577N. Janet L. Wingate 2405. 10 Jun 1983. ( KHD18845^‡ ) .

- North Table Mountain Park, Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. Tom Schweich 1500.1 13 Jul 2016. ( JCOS s.n. ) Along a watercourse that drains an ephemeral pond south to Clear Creek. Top of North Table Mountain, southwest quadrant, 2.22 km. north of the GNIS location of Golden. Tom Schweich 1930.1 8 Jun 2018. ( OBI180063^‡ UC ) Top of North Table Mountain, in the lower, southeast corner of an area disturbed by removal of soil that straddles the Tilting Mesa Trail, 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1453. 22 Jun 2016. ( CS JCOS s.n. KHD00063440^‡ ) . .

Koeleria macrantha (Ledeb.) Schult. Prairie Junegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial bunch grass, to 45-55 cm., non-rhizomatous; Leaves, mostly basal or lowest cauline, cauline, sheath, 90 mm., open, ligule, <1-1.5 mm., membraneous, auricles, 0, blade, 40 mm., tip prow-shaped or merely constricted; Inflorescence, panicle, 60 mm. × 9 mm., shiny in anthesis due to exposure of translucent palae, short branches, branches short soft hairy; Spikelets, 5 mm., 1 per node on 1°-3° or indistinct panicle branches; Glumes, lower, 3 mm., veins 1, upper, 4 mm., veins 3; Florets, 3, #1 and #2 pistillate, #3 staminate, or variously mixed bisexual and pistillate, open, i.e., palea separated from lemma; Disarticulation, between florets; Rachilla hairy, extends nearly 1 mm. above upper floret (or not); extension undecorated; Lemma, 4.5 mm., veins 5, short hairy throughout, awn, 0-0.5 mm., short, soft; Palea, =lemma, translucent or colorless, exposed, i.e., outside lemma.; Stamens, 3, 1.8 mm. Described from Coll. No. 1131, 9 June 2015, and Coll. No. 1144, 15 Jun 2015.

- North Table Mountain, 1068. 1068. Zeise, Larry Steven, 1976 1169. 1169. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Flat area below the rim of North Table Mountain, and above W. 43rd Drive and Ulysses Way, 3.2 km northeast of the GNIS location of Golden. Tom Schweich 1131. 9 Jun 2015. ( JCOS s.n. KHD56943^‡ UCR266081^‡ ) . .

Muhlenbergia wrightii Vasey ex J.M. Coult. Spike Muhly. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 60 cm., caespitose; Culms, erect, not rooting at nodes, short hairy; Leaves, sheath, open, 12 cm., ligule, membraneous, 1 mm., auricles 0, blade, 12 cm. × 1.5 mm., folded; Inflorescence, narrow (4 mm.) spike-like panicle; Spikelets, neither enclosed in burs nor in pairs; Florets, 1 per spikelet, reduced florets absent; Glumes, ±equal, 1.5 mm. + awn 0.5 mm.; Disarticulation, above the glumes; Lemma, 2 mm. × 0.5 mm. wide + awn 0.5 mm. (usually described as “mucronate” rather than awned); Palea, ?. Described from Coll. No. 1276, 30 Jul 2015.

- North Table Mountain Park, In the head of a gulch draining North Table Mountain to the east, 1.8 km north of the GNIS location of Golden. Tom Schweich 1276. 30 Jul 2015. ( JCOS s.n. KHD56535^‡ ) Common in bed of ephemeral stream and nearby gentle slopes to the south, in an upper portion of a watercourse draining southeast to Clear Creek through an unamed canyon. Top of North Table Mountain, adjacent to the North Table Loop, 285 m. north of the USBR monument designated “North Table,” 1.8 km. north of the GNIS location of Golden. Tom Schweich 1552. 1 Sep 2016. ( EIU OBI83342^‡ UC ) West branch of the Rimrock Trail, just south of the empemeral pond. Tom Schweich, with Cindy Trujillo 2386. 8/13/2021. . .

Munroa squarrosa (Nutt.) Torr. (Syn: Monroa s. [ortho. var.] ) False Buffalograss. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1191. 1191. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Tom Schweich 1488. 2/10/2017. Top of North Table Mountain, near southern edge, 1.64 km. north northeast of the GNIS location of Golden. Tom Schweich 1551. 1 Sep 2016. ( KHD00063443^‡ ) Gravel-filled depressions amongst outcrops of bedrock basalt. Top of North Table Mountain, along the Rimrock Trail, about 100 m. southeast of the “North” triangulation station, 5.62 km northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2684. 13 Aug 2021. ( Golden KHD00075379^‡ OBI183404^‡ ) . .

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.

- North Table Mountain, as Stipa viridula 1137. 1137. Zeise, Larry Steven, 1976 as Stipa viridula 1176. 1176. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive. Tom Schweich 1652. 1 Jun 2017. ( CDA0050026^‡ JCOS s.n. KHD00065212^‡ ) Northwest quadrant of North Table Mountain, interior canyon, below Mesa Top trail, 3.4 km. north of the GNIS location of Golden Tom Schweich 1692. 29 Jun 2017. ( CAS EIU ) . .

Pascopyrum smithii (Rydb.) �. L饘e. (Syn: Agropyron smithii Rydb. ) Western Wheatgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 75 cm., rhizomes, not seen; Leaves, ligule, short membraneous, auricles, 0, blade revolute; Inflorescence, bilateral spike; Rachis, internodes 6 mm.; Spikelets, 17 mm. × 10 mm. wide × 2 mm., not in capitate clusters, 1 per node, not oriented edgewise to rachis; Glumes, < lowest floret, narrowly lanceolate, slightly asymmetric, lower, 9.5 mm., upper, 10.6 mm.; Florets, #6±; Lemma, 11 mm., awns, 0; Palea, 9 mm.; Anthers, 4.5 mm. Described from Coll. No. 1691, 28 Jun 2017.

- North Table Mountain, as Agropyron smithii 998. 998. Zeise, Larry Steven, 1976 as Agropyron smithii 1158. 1158. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, Same as Coll. No. 1693, but this one not appearing rhizomatous. North side of North Table Mountain, in short vegetation on road to Table Rock water tank, 3.6 km. north of the GNIS location of Golden. Tom Schweich 1691. 28 Jun 2017. ( JCOS s.n. KHD00065211^‡ ) Same as Coll. No. 1691, but this one is clearly rhizomatous. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, interior canyon, below Mesa Top trail, 3.4 km. north of the GNIS location of Golden Tom Schweich 1693. 29 Jun 2017. ( CDA0050023^‡ UCR ^‡ ) . .

Phleum pratense L. Timothy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, 1091. 1091. Zeise, Larry Steven, 1976 . .

Poa bulbosa L. Bulbous Bluegrass. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Beside North Table Loop trail. Tom Schweich 1472. 6/1/2016. Also seen along the Mesa Spur Trail. Colorado Noxious Weed List C. Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive, among rocks in a minor gulley. Tom Schweich 1651. 1 Jun 2017. ( CDA0050027^‡ JCOS s.n. KHD00065151^‡ ) . .

Poa compressa L. Canada Bluegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, 35-80 cm.; Root fibrous; Rhizomes not seen to numerous; Culms, compressed; Nodes, compressed; Leaf blade and sheath differentiated, soft; Sheath 40-55 mm., open top ¾ to full length; Blade, 40-55 mm., folded; Ligule membraneous, 1-4 mm.; Inflorescence 1 per culm, panicle, contracted, > leaves, 45 mm. × 12 mm. wide, spikelets many; Compression, lateral; Disarticulation, above the glumes, between the florets; Spikelets, similar, 1 per node, 1�-3� branches, 4 mm. × 1.5 mm. wide, bisexual; Florets per spikelet 3-5; Glumes #2, lower, 2(3) mm., veins #3, upper, 2.2(3) mm., < lowest floret; Callous glabrous; Lemma, 2 mm., keeled, few hairs near base, veins, 5 neither equally spaced nor prominent (much easier to see if you soften the lemmas with Pohl's solution!), tip, obtuse, awns 0; Palea, 2 mm., veins, green, sparsely scabrous; Anthers, #3, 1.6 mm.; Ovary glabrous. Described from Coll. No 861, 1231, and 1677.

- North Table Mountain, 1098. 1098. Zeise, Larry Steven, 1976 .

- North Table Mountain Park, Northern portion of North Table Mountain, low area beside road to radio tower, 200 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1231. 20 Jul 2015. ( JCOS s.n. KHD00060559^‡ OBI83207^‡ ) . .

Poa fendleriana (Steud.) Vasey. Muttongrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, of shady dry places and eastern slopes, to 40-60 cm., clumped, not rhizomatous; Roots, fibrous; Stems, herbaceous; Internodes, hollow, glabrous; Leaves, blade and sheath differentiated; Sheath, 120 mm., open ½, minutely scabrous, reddish color proximally or not; Ligule, membraneous, 1-2 mm., Auricles 0, Blade, soft, short and rolled distally, 25 mm., scabrous, margin scabrous; Inflorescence, 1 per culm, 110 mm. × 20 mm. wide, >leaves, panicle, 3°-4° branches, somewhat contracted, i.e., not broad, branches sparsely scabrous, spikelets many; Rachis, sparsely scabrous on all sides, not extended beyond upper spikelet; Pedicels, 1.5-2.5 mm., short ascending hairs or sparsely scabrous; Spikelets, many, similar, 1 per node, 6 mm.; Compression lateral; Disarticulation, above the glumes; Glumes, 2, lower, 3-3.7 mm., <lowest lemma, upper, 4-4.3 mm., veins 3(5); Florets, 5-6 per spikelet, lowest 1-3 or all pistillate, no evidence of stamens; Callus glabrous; Rachilla, hairy, extends beyond upper floret; Lemma, 4-5 mm., >glumes, keeled, wavy hairs proximal half of keels and margins, hairs to 0.7 mm., veins ≥3, 5, indistinct, tip obtuse, awns 0, Palea, 2.3-2.5 mm., <lemma, transparent, keels green and hairy; Stamens, none found; Ovary, glabrous, yellow-brown; Stigma, feathery; Described from Coll. No. 1126, 1 June 2015, and Coll. No. 1807, 7 May 2018.

- North Table Mountain Park, Top of North Table Mountain, east side, between the Cottonwood Canyon Trail near the north end and northernmost tower of the adjacent power line, 3.45 km. northeast of the GNIS location of Golden. Tom Schweich 1805. 8 May 2018. ( CS JCOS s.n. KHD00069167^‡ OBI158895^‡ ) Lowest eastern slopes of North Table Mountain, beside the Lithic Trail about mid-way between the Fairmont Ditch and North Table Loop, 3.80 km. northeast of the GNIS location of Golden, Tom Schweich 1807. 7 May 2018. ( JCOS s.n. KHD00069168^‡ OBI124864^‡ UCR ^‡ ) Collected with Phlox multiflora and Carex inops var. heliophila. Lower north slopes of North Table Mountain, on the nose of a small ridge in the corner of the North Table Loop, 4.49 km. north northeast of the GNIS location of Golden Tom Schweich 1815. 10 May 2018. ( JCOS s.n. KHD00069169^‡ ) . .

Poa palustris L. Fowl Bluegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

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

- North Table Mountain, Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1529. 5 Aug 2016. ( JCOS s.n. KHD00068389^‡ ) Small wetland where the North Table Mountain Trail crosses a watercourse below a near-perennial spring that is higher on the south slope of the mesa. Same as Coll. No. 1529, but this one shows the decumbent culms that are purplish at the base. Lower south slopes of North Table Mountain, above Peery Parkway, 250 m. south of the USBR monument “North Table,”1.25 km. north of the GNIS location of Golden. Tom Schweich 1530. 5 Aug 2016. ( JCOS s.n. KHD00063444^‡ ) . .

Poa pratensis L. (Syn: P. agassizensis B. Boivin & D. L饘e ) Kentucky Bluegrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 40-75 cm.; Roots fibrous; Rhizomes slender, light-colored, 0.8-1.0 mm. dia., to 12 cm.; Culm, not bulbous at base, not strongly flattened; Nodes; Leaf blades and sheath differentiated, soft, Sheath, 85-130 mm., open at least ½; Auricles 0; Ligules membraneous, ≤1 to 1.8 mm.; Blade, lower involute or folded, upper flat, 25-75 mm. × 3 mm. wide, margin, scabrous, tip ±prow-shaped (or not); Inflorescence 1 per culm, terminal, panicle, 70-130 mm. × 33-65 mm. wide, pyramidal, branches scabrous; Rachis, not extended, glabrous; Spikelets, 4-5 mm. × 2.5 mm. wide, similar throughout plant, singly pedicelled on 2°-5° branches, pedicels 0.5-2.0 mm., with both pistillate and staminate florets; Compression lateral; Disarticulation above the glumes; Glumes, keeled, keels, glabrous, scabrous, or with small line of stiff hairs distally, lower, 2.0-2.8 mm., <lowest lemma, veins 1 or 3, upper, 2.5-3.0 mm., veins 3; Florets, #(2)3-4 per spikelet (eliminates Agrostis), mostly bisexual; Rachilla, extends 1 mm. above upper floret, not hairy; Callus long cobwebby hairs (distinctive!), or with some cobwebby hairs, but cobwebby hairs also elsewhere; Lemma 2.7-3.0 mm., >glumes, glabrous, veins 3-5, likely 5 as the 2 outer veins that are visible are quite near margins, short hairy on keel and margins cobwebby proximally, margins scarious, tip broadly acute, Awns 0; Palea 2.3-3 mm., ≤lemma, membraneous, green, esp. on veins, keel scabrous, intercostal regions narrow and glabrous; Anthers #3, 1-1.6 mm., purple (streaked); Stigma feathery, white. Described from Coll. Nos. 470 & 860, Mono County, CA, and Coll. Nos. 1118, 1420 & 1889, 2057, Jefferson County, CO. Subspecies of P. pratensis are not recognized in Colorado (Weber&Wittmann 2012, Ackerman 2015).

- North Table Mountain, as P. agassizensis 1097. 1097. Zeise, Larry Steven, 1976 1099. 1099. Zeise, Larry Steven, 1976 1186. 1186. Kilburn, Paul D., and Sally L. White, 1992 Small grassy areas on the upper southwest slope of North Table Mountain, hummocky terrain, probably in the head of one or more landslides, 1.96 km. north of the GNIS location of Golden. Tom Schweich 2057. 4 Jun 2019. ( REGIS UCR ) .

- North Table Mountain Park, At base of southeast-facing boulder. East side of North Table Mountain, near the Easley Road trailhead, on an old abanconed road just above North Table Loop, 3.7 km. northeast of the GNIS location of Golden. Tom Schweich 1626. 22 May 2017. ( CDA0050093^‡ JCOS s.n. KHD00065419^‡ ) . .

Puccinellia distans (L.) Parl. European Alkali Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 45 cm., clumped; Leaves, Sheath, 62 mm., open; Ligule, membranous, 1.7 mm., auricles, absent; Blade, 41 mm., revolute, scabrous on mid-vein and margin, tip, prow-shaped; Inflorescence, 1 per culm, >leaves, open panicle, 120 mm. × 90 mm. wide, pyramidal, some branches reflexed; Rachis, not extended, scabrous; Spikelets, many, 2.5 mm. × 0.9 mm. wide, similar, borne singly, pedicels, 1.0-3.5 mm., 3-4 flowered; Compression, unremarkable; Disarticulation, above the glumes, between the florets, florets falling separately; Glumes, lower, 0.9 mm., veins, #1, upper, 1.5 mm., <lowest floret, veins, 1 or more, obscure, awns, #0; Lemma, 1.9 mm., >glumes, ovate, membranous, rolled, glabrous, purple to tan, veins, ≥5, obscure, tip, rounded, lacerate or erose, Palea, 1.9 mm., ±=lemma, keels minutely scabrous, tip, entire, color purple to straw; Anthers, 0.7 mm.; Crypsela, 1.2 mm. × 0.6 mm. wide, brown. (Described from Coll. No. 1959.2, 21 June 2018.)

Schizachyrium scoparium (Michx.) Nash. Little Bluestem. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, About half way up the western slope of North Table Mountain, in rim rocks of oldest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1735. 15 Aug 2017. ( CS JCOS s.n. KHD00065148^‡ ) . .

Sporobolus cryptandrus (Torr.) A. Gray. (Syn: Agrostis cryptandra Torr. ) Sand Drop-seed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial grass, to 50 cm., caespitose; Leaves, cauline, sheath, 45 mm., overlapping about ½, open, ciliate distally; ligule, hairy, 0.5 mm., collar of hairs to 3 mm., blade, 150 mm. × 3.5 mm. wide, rolled to flat; Inflorescence, open panicle, 120 mm, × 45 mm. wide, lower branches included in sheath; Spikelets, 2 mm. × 0.5 mm. wide, crowded on panicle branches, glabrous throughout; Florets, 1 per spikelet, bisexual; Glumes, #2, awns 0, lower, 0.7 mm., upper, 1.8 mm.; Lemma, 2.0 mm., veins, 1, prominent green, awns, 0; Palea, 1.9 mm. Described from Coll. No. 1757, 31 Aug 2017.

- North Table Mountain, 1134. 1134. Zeise, Larry Steven, 1976 1181. 1181. Kilburn, Paul D., and Sally L. White, 1992 Mostly grassland with a few shrubs, also collected nearby: Corydalis aurea, Securigera varia, and Erigeron tracyi. Lower south slopes of North Table Mountain, beside the access road to the overflow (upper) parking lot for the Golden Cliffs climbing area, 1.57 km. northeast of the GNIS location of Golden Tom Schweich, with Cindy Trujillo 2512. 18 Jun 2021. ( KHD00075350^‡ ) . .

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.

- North Table Mountain, Flat area with rock outcrops, probably the headscarp of a small landslide. Southwest slopes of North Table Mountain, 1.34 km north of the GNIS location of Golden Tom Schweich 1272. 30 Jul 2015. ( CAS KHD56537^‡ UC UCR267475^‡ ) . .

Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang. (Syn: Elymus elongatus (Host) Runemark ) Rush Wheatgrass. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain, as Agropyron elongatum 1184. 1184. Kilburn, Paul D., and Sally L. White, 1992 .

- North Table Mountain Park, East edge of North Table Mountain, just above the rim, near the junction of the Mesa Top and Rim Rock Trails, 4.78 km. northeast of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2681. 13 Aug 2021. ( Golden KHD00075662^‡ OBI183694^‡ ) . .

Vulpia octoflora (Walt.) Rydb. (Syn: Festuca octoflora Walter , Vulpia octoflora (Walt.) Rydb. var. octoflora ) Six Weeks Fescue. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, 5-6 cm., tufted; Roots, fibrous; Sheath, 6 mm., open, minutely hairy; Ligule, membraneous, very short; Blade, 4.5 mm. × 0.3 mm. wide, rolled, glabrous; Inflorescence, 1 per culm, >leaves, raceme, 16 mm. × 5 mm. wide; Spikelets, #6, 6-7 mm., similar, 1 / node, many flowered; Compression, lateral; Disarticulation, between florets; Glumes, lower, 2 mm., vein, #1, upper, 3 mm., veins, #3, keeled, awns, #0; Florets, #5-6 per spikelets; Axis, short hairy abaxially; Lemma, 3.2 mm, >glumes, lanceolate, green, rolled, hairs, 0.2 mm., white/straw color, veins, #3, glabrous, tip entire, awns, #1, 1.8 mm., straight, attached to end; Palea, 2.7 mm., <lemma, membraneous, margin ciliate; keeled (Described from Coll. No. 1852, 18 May 2018).

- North Table Mountain, 1155. 1155. Zeise, Larry Steven, 1976 1192. 1192. Kilburn, Paul D., and Sally L. White, 1992 .

Potamogetonaceae

Potamogeton nodosus Poir. Longleaf Pondweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Small pond. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC15. Rick Brune 14 May 1992. ( COLO00624684^‡ ) .

Total number of taxa:	365
Native Taxa: (serif, italic, bold)	273
Exotic Taxa: (sans-serif, italic)	82
Nativity Undetermined: (default font, italic)	10
Listed Weeds: Identified as Weed	20

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

North Table Mountain.

North Table Mountain Park.

Ramstetter Reservoir.

Bibliography

Kilburn, Paul D., and Sally L. White. 1992. North Table Mountain: Its History and Natural Features. Morrison, CO: Jefferson County Nature Association, 1992. {TAS-pdf}

White, Sally, and Loraine Yeatts. 1994. Plants of North Table Mountain 1. {TAS-pdf} (http://www.conps.org/pdf/Plant_Lists/NTableMtByFam.pdf, accessed 15 August 2014) This list was used for two Colorado Native Plant Society field trips: 14 May 1994, led by Sally White and Loraine Yeatts, and 23 May 1998, led by Paul Kilburn and Jerry Duncan.

Zeise, Larry Steven. 1976. An ecological survey of North Table Mountain near Golden, Colorado. pp. in Supervised and Edited by John W. Marr, Ecologist, Professor of Biology. A study conducted for the Technical Advisory Committee of the Colorado Chapter of the Nature Conservancy. Boulder, Colorado: Laboratory of Mountain Ecology for Man, Department of Environmental Biology, University of Colorado, November, 1976. {TAS-pdf}

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Date and time this article was prepared: 7/13/2024 8:20:53 AM.