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Detailed Area Plant List for Centennial Cone Park-North, 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 Centennial Cone Park-North, Jefferson County, United States.
 Habitat of Coll. No. 2523, Schizachne purpurescens |
 Coll. No. 2523, Schizachne purpurescens |
 Coll. No. 2523, Schizachne purpurescens |
 Inflorescence of Coll. No. 2523, Schizachne purpurescens |
Marchantiophyta
Marchantiophyta . Liverwort. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 155363492. 4747. 4/17/2023. iNaturalist Observation 217145903. 4748. 5/20/2024. .
Dryopteridaceae
Woodsia oregana D.C. Eaton ssp. cathcartiana (B.L. Rob.) Windham. Rocky Mountain Woodsia. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Of the three characters that distinguish subsp. cathcartiana from subsp. oregana, two, spore size and adaxial epidermal cell size, require measuring in units of µm, 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.
- Centennial Cone Park-North,
iNaturalist Observation 164748547.
4755.
5/30/2023.
.
.
Woodsia scopulina D. C. Eaton. Rocky Mountain Woodsia. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, Centennial Cone Open pace. Elk Creek north of Clear Creek Canyon Rick Brune, with Don Hazlett 1684. 16 Aug 2000. ( KHD20997‡ ) .
Selaginellaceae
Selaginella densa Rydb. Rocky Mountain Spikemoss. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 43478379. 4749. 4/25/2020. iNaturalist Observation 78496383. 4750. 5/12/2021. iNaturalist Observation 132517778. 4751. 8/27/2022. iNaturalist Observation 288467019. 4752. 6/9/2025. iNaturalist Observation 344268916. 4753. 3/21/2026. . .
Selaginella mutica D.C. Eaton ex Underw. var. mutica. Bluntleaf Spikemoss. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 164748555. 4754. 5/30/2023. .
Cupressaceae
Juniperus scopulorum Sarg. (Syn: Sabina scopulorum Sarg.(Sarg.) Rydb. ) Rocky Mountain Juniper. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 250740258.
5213.
11/5/2024.
iNaturalist Observation 250741577.
5214.
11/5/2024.
iNaturalist Observation 250742852.
5215.
11/5/2024.
iNaturalist Observation 250743572.
5216.
11/5/2024.
iNaturalist Observation 288469498.
5217.
6/9/2025.
.
Pinaceae
Pinus scopulorum Lemmon. (Syn: P. ponderosa Laws. var. scopulorum Engelm. ) Rocky Mountain yellow pine. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 132517680.
5218.
8/27/2022.
iNaturalist Observation 219888250.
5219.
6/1/2024.
.
 East slope of Tarryall Mountains from Camp Site 8. |
 Coll. No. 1316, Pinus |
 Rocky Mountain yellow pine on top of North Table Mountain. |
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. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 231115624.
4929.
7/22/2024.
.
Apiaceae
Harbouria trachypleura (A. Gray) J.M. Coult. & Rose. (Syn: Thaspium trachypleurum A. Gray ) Whiskbroom Parsley. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 171682069.
4999.
7/7/2023.
iNaturalist Observation 218513545.
5000.
5/24/2024.
iNaturalist Observation 219888244.
5001.
6/1/2024.
iNaturalist Observation 222989828.
5002.
6/15/2024.
iNaturalist Observation 225827170.
5003.
6/28/2024.
.
.
 Coll. No. 1357, Harbouria trachypleura |
 Coll. No. 1904, Harbouria trachypleura |
 Inflorescence of Coll. No. 1904, Harbouria trachypleura |
Heracleum maximum Bartr. Common Cow Parsnip. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 171682079.
5004.
7/7/2023.
.
.
 Coll. No. 3430, Heracleum maximum. |
 Coll. No. 3430, Heracleum maximum. |
Lomatium orientale J.M. Coult. & Rose. Salt-and-Pepper. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 78496509.
5005.
5/12/2021.
iNaturalist Observation 217823605.
5006.
5/23/2024.
iNaturalist Observation 278253655.
5007.
5/3/2025.
iNaturalist Observation 349031458.
5008.
4/11/2026.
.
Asclepiadaceae
Asclepias speciosa Torr. Showy Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 288472220.
5010.
6/9/2025.
.
 Seed pod of Asclepias speciosa |
 Seed of Asclepias speciosa |
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. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 49222501.
5099.
6/10/2020.
iNaturalist Observation 231115599.
5100.
7/22/2024.
.
.
Agoseris parviflora (Nutt.) D. Dietr. (Syn: A. glauca (Pursh) Raf. var. laciniata (D. C. Eaton) Smiley , Troximon parviflorum Nutt. , Troximon pubescens (Rydb.) A. Nels. ) Steppe Goat-Chicory. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial herb, to 20 cm.; Leaves, basal, to 180 mm. × 6 mm. wide, not prickly, margins, generally straight (not wavy), 0- to 6-toothed, sparsely ciliate or hairy; Inflorescence, single heads on scape to 15 cm.; Phyllaries, in 2+ graduated series, 10-13-16 mm., generally green, mid-vein dark purple, margin scarious, outer phyllaries, mid-vein and margin ciliate; Ray flowers, corolla, 20-22 mm., yellow (drying more purple than pink), lobes 5; Disc flowers 0; Pappus, simple capillary bristles; Achene, surface smooth, beak unknown (immature). (Described from Coll. No. 1101, 3 May 2015)
- Centennial Cone Park-North,
iNaturalist Observation 283275241.
5101.
5/22/2025.
.
.
Anaphalis margaritacea (L.) Bentham & Hooker. Western Pearly Everlasting. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
rocky slope, northeast aspect Selaginella, 228Psemon, cerastium arvense strictum, Sedum lanceolatum, Eriogonum umbellatum,
Tom Schweich 3594.
8 Jun 2026.
(
Undist.
)
.
.
 Coll. No. 2972, Anaphalis margaritacea |
 Coll. No. 2657, Anaphalis margaritacea |
 Coll. No. 2972, Anaphalis margaritacea. |
Antennaria parvifolia Nutt. Small-Leaf Pussytoes. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.)
- Centennial Cone Park-North,
iNaturalist Observation 120773714.
5103.
6/7/2022.
iNaturalist Observation 164748510.
5104.
5/30/2023.
iNaturalist Observation 217823600.
5105.
5/23/2024.
iNaturalist Observation 278250659.
5106.
5/3/2025.
iNaturalist Observation 283273721.
5107.
5/22/2025.
.
.
Artemisia frigida Willd. Prairie Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 218528056.
5108.
5/24/2024.
iNaturalist Observation 250742235.
5109.
11/5/2024.
.
.
 Coll. No. 1067, Artemisia frigida |
 Coll. No. 3507, Artemisia frigida. |
 Coll. No. 1067, Artemisia frigida |
 Coll. No. 1067, Artemisia frigida |
Carduus nutans L. (Syn: Carduus nutans L. ssp. macrolepis (Peterman) Kazmi ) Nodding Plumeless Thistle. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.)
- Centennial Cone Park-North,
iNaturalist Observation 126285685.
5110.
7/14/2022.
.
.
 Carduus nutans rosette. |
 Coll. No. 1711, Carduus nutans |
 Coll. No. 2551, Carduus nutans |
Erigeron flagellaris A. Gray. Trailing Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 196026362.
5111.
6/17/2017.
.
.
 Coll. No. 2537.1, Erigeron flagellaris |
 Coll. No. 1116, Erigeron flagellaris |
 Coll. No. 1829, Erigeron flagellaris |
 Coll. No. 1829, Erigeron flagellaris |
Erigeron speciosus (Lindl.) DC. Aspen Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.
Perennial herb, to 75 cm., rhizomatous; Stem, glabrous, to glandular distally, purple at base; Leaves, basal, absent, lower cauline, petiole 20-25 mm. + blade 25-45 mm. × 6-10 mm. wide, elliptic, margin ciliate, upper cauline, sessile, 25-42 mm. × 5.0-7.5 mm. wide, lanceolate, gradually reduced, finely glandular, tips, small rounded tip (apiculate?), margins, entire, ciliate; Inflorescence, >leaves, 2-3 heads per stem, showy; Involucre, 5 mm. × 13 mm. wide, base glandular; Phyllaries, 3± series, 4-5 mm. × 0.5 mm. wide, outer ±= inner, outer green, inner yellow-tan, curved distally, finely glandular; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, many, tube 2-3 mm. + blade 10-12 mm. × 0.5-1.0 mm. wide, lavender, or white fading lavender, fertile; Disk flowers, many, tube 2.0-3.3 mm. + lobes 0.5 mm., yellow, open, bisexual; Pappus, two series, short and long, long, 2 mm. sometimes (undescribed) or tawny; Cypsela, 1.3 mm. compressed, brown, hairy. (Described from Coll. No. 2612, 29 July 2021, and Coll. No. 2645, 5 Aug 2021.)
- Centennial Cone Park-North,
iNaturalist Observation 46885235.
5112.
5/22/2020.
.
.
Erigeron vetensis Rydb. Early Bluetop Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial, 4 to 12 cm., sparse multicellular hairs, spreading to tangled, with clear crosswalls to 0.8 mm., plus very small (<0.1 mm.) peg-like glands, throughout; Leaves, basal, petiole 45 mm. + blade 65 mm. × 5 mm. wide, narrowly oblanceolate, cauline, reduced in size, #4-5, sessile, 8-15 mm. × 1.3-2.1 mm. wide, narrowly oblanceolate, entire; Inflorescence, scapose, 21 cm.; Heads, mostly borne singly; Involucre, 5 mm. × 11 mm. wide; Phyllaries, subequal, in 2 rows, 5 mm. × 0.7 mm. wide, margins not ciliate, tip acuminate; Flowers of 2 kinds, Ray flowers, fertile, corolla, 5-11 mm. × 1-1.6 mm. wide, ±white to blue, fading blue; Disk flowers, corolla, 4.0 mm., yellow, lobes triangular, style branch appendages triangular; Pappus, short (0.3 mm.) and long (2.2 mm.) capillary bristles; Cypsela, 1.5-1.6 mm. (Described from Coll. No. 1421, 10 Jun 2016; 3562, 16 April 2026 ).
- Centennial Cone Park-North,
n-facing rocky hillslope: Cymopterus lemmonii, Helianthus pumilus, Pediocactus simpsonii, Cerastium arvense strictum, Sedum lanceolatum, Ribes cereum, Eriogonum umbellatum
trail side
Tom Schweich 3597.
8 Jun 2026.
(
Undist.
)
.
.
 Coll. No. 3562, Erigeron vetensis. |
 Coll. No. 3562, Erigeron vetensis. |
 Coll. No. 2465, Erigeron vetensis |
 Coll. No. 2943, Erigeron vetensis. |
 Coll. No. 1421, Erigeron vetensis |
Gaillardia aristata Pursh. Blanketflower. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 126284798.
5113.
7/14/2022.
iNaturalist Observation 171682066.
5114.
7/7/2023.
iNaturalist Observation 222989855.
5115.
6/15/2024.
iNaturalist Observation 225827173.
5116.
6/28/2024.
iNaturalist Observation 265303624.
5117.
6/26/2021.
iNaturalist Observation 288386386.
5118.
6/9/2025.
iNaturalist Observation 290000755.
5119.
6/15/2025.
.
.
 Gaillardia aristata on Dakota Ridge. |
 Coll. No. 1665, Gaillardia aristata |
 Flowerhead of Coll. No. 1454, Gaillardia aristata |
Grindelia subalpina Greene. Subalpine Gumweed. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial herb, 45-60 cm.; Stem, light brown, glabrous; Leaves, cauline, alternate, sessile, blade 45 mm. × 12 mm. wide, reduced distally, oblanceolate, adaxially glandular, margins, dentate, teeth separated 3-5 mm., apiculate; Inflorescence, heads, #3-4 per stem, not overtopped by leaves, showy, gummy exudate; Involucre, 10 mm. × 13 mm. wide, globose, resinous; Phyllaries, in 5± unequal graduated series, lower << rest of involucre, upper 8 mm. × 1.3 mm. wide, resinous, margins, flat, tips, acuminate, lower coiled 360°; Pappus, few, well developed bristles, 3.5 mm, readily falling; Style, 2-branched, stigmatic portion 0.6 mm. + appendages 0.6 mm.; Cypsela, 1.6 mm. × 0.6 mm. wide, black, glabrous. (Described from Coll. No. 3530, 18 September 2025.)
- Centennial Cone Park-North,
iNaturalist Observation 171682074.
5120.
7/7/2023.
iNaturalist Observation 225827197.
5121.
6/28/2024.
iNaturalist Observation 231115589.
5122.
7/22/2024.
.
.
 Obs. No. 4396, Grindelia subalpina. |
 Obs. No. 4392, Grindelia subalpina in DeLong Park. |
 Coll. No. 3530, Grindelia subalpina. |
Helianthus pumilus Nutt. Little Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 126286233.
5123.
7/14/2022.
iNaturalist Observation 250742375.
5124.
11/5/2024.
iNaturalist Observation 288391555.
5125.
6/9/2025.
.
.
 Coll. No. 1704, Helianthus pumilus |
 Coll. No. 1426, Helianthus pumilis |
Liatris punctata Hook. Dotted Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 54957971.
5126.
7/29/2020.
iNaturalist Observation 235657708.
5127.
8/3/2024.
.
.
 Coll. No. 1736, Liatris punctata |
 Coll. No. 3195, Liatris punctata. |
 Inflorescence of Coll. No. 1264, Liatris punctata |
 Coll. No. 1264, Liatris punctata |
Packera fendleri (A. Gray) W.A. Weber & Á. Löve. (Syn: Senecio fendleri A. Gray ) Fendler’s Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 289997109.
5128.
6/15/2025.
.
.
Rudbeckia laciniata L. var. ampla (A. Nelson) Cronquist. Cut-Leaf Coneflower.. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North,
iNaturalist Observation 126281661.
5129.
7/14/2022.
iNaturalist Observation 231115610.
5130.
7/22/2024.
iNaturalist Observation 288479618.
5131.
6/9/2025.
.
.
 Coll. No. 2650, Rudbeckia laciniata var. ampla. |
Senecio integerrimus Nutt. Columbia Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 120773145.
5132.
6/7/2022.
iNaturalist Observation 164748549.
5133.
5/30/2023.
iNaturalist Observation 217823606.
5134.
5/23/2024.
iNaturalist Observation 218513903.
5135.
5/24/2024.
iNaturalist Observation 219888212.
5136.
6/1/2024.
iNaturalist Observation 278251054.
5137.
5/3/2025.
iNaturalist Observation 283273723.
5138.
5/22/2025.
iNaturalist Observation 287772466.
5139.
6/7/2025.
iNaturalist Observation 288479942.
5140.
6/9/2025.
iNaturalist Observation 288480186.
5141.
6/9/2025.
iNaturalist Observation 289997111.
5142.
6/15/2025.
iNaturalist Observation 354771464.
5143.
4/25/2026.
.
.
Senecio spartioides Torr. & A. Gray. (Syn: S. multicapitatus Greenm. ex Rydb. ) Broomlike Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 181986224.
5144.
9/5/2023.
.
.
Townsendia exscapa (Richards.) Porter. Stemless Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 43478732.
5145.
4/25/2020.
.
.
 Townsendia exscapa at Fort Union. |
Townsendia hookeri Beaman. Hooker's Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Low growing perennial, from a woody caudex, acaulescent, to 2.5 cm.; Leaves, linear to narrowly oblanceolate, 30 mm. × 1.2 mm. wide, appressed hairy or strigose, eglandular; Peduncle, 3 mm., spreading hairy, eglandular; Heads, solitary, sessile (or apparently so), 12 mm. × disc (10)15-20 mm. wide; Phyllaries in 3+ overlapping series, 8 mm. × 1.2 mm. wide, all same length but inner phyllaries attached higher on receptacle giving impression of inner > outer, green, margin scarious and ciliate, outer hairy, tipped by a tuft of tangled cilia, inner, margins and tip ciliate, but not tangled; Receptacle epaleate, flat; Ray flowers, #25-30, fertile (pistillate), cypsela 3.3 mm., tuft of glandular hairs at base, pappus of 1 series white bristles, 4-5 mm., corolla, 10-11 mm., white to lavender; Disc flowers, bisexual, cypsela, 3.7 mm., glandular hairy, pappus 1 series white bristles, 4-6 mm., corolla, 3.8-4.5 mm., yellow, lobes dark. (Described from Coll. No. 1087, 25 Apr 2015, and Coll. No. 1304, 9 April 2016) The disc pappus sometimes being longer than the ray pappus could lead one to T. incana in Ackerfield (2015). Perhaps caulescence would be a better character, as used by Weber & Wittmann (2012).
- Centennial Cone Park-North,
iNaturalist Observation 278250658.
5146.
5/3/2025.
.
Boraginaceae
Lithospermum incisum Lehm. Narrowleaf Stoneseed. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial … cleistogamic flowers present, in fruit usually with recurved pedicels. Flowers monomorphic.
- Centennial Cone Park-North,
iNaturalist Observation 118415220.
5018.
5/23/2022.
iNaturalist Observation 120774745.
5019.
6/7/2022.
iNaturalist Observation 164748546.
5020.
5/30/2023.
iNaturalist Observation 217823591.
5021.
5/23/2024.
iNaturalist Observation 219888269.
5022.
6/1/2024.
iNaturalist Observation 283276067.
5023.
5/22/2025.
.
.
Mertensia ciliata (Torr.) G. Don var. ciliata. Tall Fringed Bluebells. CalPhotos. Jepson eFlora. SEINet Taxon.
Variety ciliata accepted in Colorado beginning with Ackerfield (2nd edition, 2022).
- Centennial Cone Park-North, Elk Creek, northeast of Centennial Cone. Donald L. Hazlett, with Rick Brune 11218. 25 May 2000. ( KHD3153‡ ) . .
Mertensia lanceolata (Pursh) DC. Prairie Bluebells. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.)
- Centennial Cone Park-North,
iNaturalist Observation 46884832.
5024.
5/22/2020.
iNaturalist Observation 120773715.
5025.
6/7/2022.
iNaturalist Observation 120774747.
5026.
6/7/2022.
iNaturalist Observation 164748557.
5027.
5/30/2023.
iNaturalist Observation 171682068.
5028.
7/7/2023.
iNaturalist Observation 217823563.
5029.
5/23/2024.
iNaturalist Observation 219888278.
5030.
6/1/2024.
iNaturalist Observation 283276463.
5031.
5/22/2025.
.
.
Oreocarya virgata (Porter) Greene. (Syn: Cryptantha virgata (Porter) Payson ) Miner"s Candle. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 120774736. 5032. 6/7/2022. iNaturalist Observation 126285677. 5033. 7/14/2022. iNaturalist Observation 288390236. 5034. 6/9/2025. iNaturalist Observation 289994636. 5035. 6/15/2025. . .
Phacelia heterophylla Pursh. Varileaf Phacelia. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Described by Pursh (1814) from a collection by M. Lewis Jun-Jul, 1806 on the banks of the Kooskooskie (Clearwater) River.
- Centennial Cone Park-North,
iNaturalist Observation 171682075.
5036.
7/7/2023.
.
 Habitat of Coll. No. 1138, Phacelia heterophylla |
 Coll. No. 2081, Phacelia heterophylla |
Brassicaceae
Alyssum simplex Rudolphi. (Syn: A. campestre (L.) L. var. simplex (Rudolphi) Willd. , A. minus Rothm. , A. parviflorum Fisch. ex M.Bieb. ) European Madwort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 157877522.
4761.
4/29/2023.
iNaturalist Observation 167453118.
4762.
6/14/2023.
iNaturalist Observation 250743106.
4763.
11/5/2024.
iNaturalist Observation 288385418.
4764.
6/9/2025.
.
.
 Alyssum simplex |
 Alyssum simplex |
 Fruit of Coll. No. 1090, Alyssum simplex |
 Coll. No. 1090, Alyssum simplex |
 Coll. No. 1367, Alyssum simplex |
Camelina microcarpa Andrz. ex DC. Little-Podded False Flax. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 325229607.
4765.
6/26/2021.
.
.
 Coll. No. 1876, Camelina microcarpa |
 Coll. No. 2936, Camelina microcarpa. |
Chorispora tenella (Pall.) DC. Crossflower. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 217823612.
4766.
5/23/2024.
.
.
Erysimum capitatum (Hook.) Greene. Sanddune Wallflower. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial or at least biennial, 16 cm. 25-45 cm., hairs dolabriform throughout; Root, tap; Stems, erect, leafy, proximal not woody hairs as above; Leaves, basal and cauline, basal, petiole, indistinct, ±10 mm., + blade, 50-100 mm. × 2.5-3 mm. wide, narrowly oblanceolate, margin 1-3 shallowly pinnate dentate, cauline, nearly sessile, 42 mm. × 2.5 mm. wide, ±linear, margin, entire, reduced distally; Inflorescence, raceme 130 mm. × 45 mm. wide, not bracted; Pedicels, 3-6 mm., elongating as flower matures, ascending; Flowers, radial; Sepals, #4, rows, 1, 7 mm. × 1-1.5 mm. wide, narrow and wide pairs opposite, lateral pair basally saccate; Petals, claw, 10-11 mm. + blade 6-9 mm. × 4-6 mm. wide, spoon-shaped, margin, entire, color, yellow, orange; Stamens, #6, 11 & 15 mm., tetradynamous (2 short, 4 long); Anthers, 4.5 mm.; Ovary, 4 mm.; Style, 9 mm.; Stigma, capitate; Fruit, 17-34 mm. × 1 mm. wide, 4-angled, ascending, hairy as above; Seeds, unknown (Described from Coll. Nos. 206, 1835, & 2306).
- Centennial Cone Park-North,
iNaturalist Observation 120773146.
4767.
6/7/2022.
iNaturalist Observation 164748490.
4768.
5/30/2023.
iNaturalist Observation 217823557.
4769.
5/23/2024.
iNaturalist Observation 218517718.
4770.
5/24/2024.
iNaturalist Observation 219888271.
4771.
6/1/2024.
iNaturalist Observation 281905745.
4772.
5/17/2025.
iNaturalist Observation 283275917.
4773.
5/22/2025.
iNaturalist Observation 287774425.
4774.
6/7/2025.
iNaturalist Observation 288391385.
4775.
6/9/2025.
iNaturalist Observation 288393411.
4776.
6/9/2025.
iNaturalist Observation 288395242.
4777.
6/9/2025.
iNaturalist Observation 288471120.
4778.
6/9/2025.
Elk Creek, east of Centennial Cone.
Donald L. Hazlett 11366.
25 May 2000.
(
KHD56977‡
)
.
.
Noccaea fendleri (A. Gray) Holub ssp. glauca (A. Nelson) Al-Shehbaz & M. Koch. (Syn: Noccaea montana (L.) F. K. Meyer , Thlaspi montanum L. var. montanum ) Alpine Pennycress. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial herbs, with basal leaves and flowering stems to 8 cm., glabrous, prior year flowering stems persistent; Leaves, basal, 8 mm. × 4 mm. wide, ±obovate, margin entire, abaxially purple, petiole 5 mm., cauline, 8 mm. × 5 mm. wide, base auriculate, margin entire; Flowers, white, fading purple; Petals 4.5 mm.; Fruit, a silicle, 5.5-7.0 mm. × 2.5-3.0 mm. wide, obcordate, winged distally (Described from Coll. No. 1085, 25 April 2015, and Coll. No. 1328, 5 May 2016).
- Centennial Cone Park-North,
iNaturalist Observation 164748556.
4779.
5/30/2023.
iNaturalist Observation 217823571.
4780.
5/23/2024.
iNaturalist Observation 278253031.
4781.
5/3/2025.
iNaturalist Observation 347634868.
4782.
4/5/2026.
.
.
 Habitat of Coll. No. 1329, Noccaea fendleri var. glauca |
 Coll. No. 1085, Noccaea fendleri ssp. glauca |
 Coll. No. 2037.1, Noccaea fendleri var. glauca |
 Coll. No. 2782, Noccaea fendleri |
Physaria montana (A. Gray) Greene. (Syn: Lesquerella montana (A. Gray) S. Watson ) Mountain Bladderpod. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 120773719.
4783.
6/7/2022.
iNaturalist Observation 157876451.
4784.
4/29/2023.
iNaturalist Observation 164748522.
4785.
5/30/2023.
iNaturalist Observation 217823543.
4786.
5/23/2024.
iNaturalist Observation 218517507.
4787.
5/24/2024.
iNaturalist Observation 278250669.
4788.
5/3/2025.
iNaturalist Observation 283274281.
4789.
5/22/2025.
iNaturalist Observation 283276820.
4790.
5/22/2025.
iNaturalist Observation 287774663.
4791.
6/7/2025.
iNaturalist Observation 288395286.
4792.
6/9/2025.
iNaturalist Observation 354770370.
4793.
4/25/2026.
.
 Coll. No. 2796, Physaria montana. |
 Coll. No. 1081, Physaria montana |
 Inflorescence of Coll. No. 1377, Physaria montana |
 Coll. No. 1377, Physaria montana |
Cactaceae
Opuntia polyacantha Haw. Plains Pricklypear. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 34377189.
4957.
10/12/2019.
iNaturalist Observation 43479092.
4958.
4/25/2020.
iNaturalist Observation 120774201.
4959.
6/7/2022.
iNaturalist Observation 126284804.
4960.
7/14/2022.
iNaturalist Observation 217823552.
4961.
5/23/2024.
iNaturalist Observation 217823561.
4962.
5/23/2024.
iNaturalist Observation 217823577.
4963.
5/23/2024.
iNaturalist Observation 219888249.
4964.
6/1/2024.
iNaturalist Observation 278251053.
4965.
5/3/2025.
iNaturalist Observation 288391926.
4966.
6/9/2025.
iNaturalist Observation 288393392.
4967.
6/9/2025.
iNaturalist Observation 288394202.
4968.
6/9/2025.
iNaturalist Observation 288466823.
4969.
6/9/2025.
iNaturalist Observation 288467244.
4970.
6/9/2025.
iNaturalist Observation 349054118.
4971.
4/11/2026.
iNaturalist Observation 354769584.
4972.
4/25/2026.
.
.
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. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 34377035.
4973.
10/12/2019.
iNaturalist Observation 43478559.
4974.
4/25/2020.
iNaturalist Observation 75353285.
4975.
4/26/2021.
iNaturalist Observation 117603876.
4976.
5/12/2022.
iNaturalist Observation 120774190.
4977.
6/7/2022.
iNaturalist Observation 157877301.
4978.
4/29/2023.
iNaturalist Observation 171682038.
4979.
7/7/2023.
iNaturalist Observation 218518804.
4980.
5/24/2024.
iNaturalist Observation 225827190.
4981.
6/28/2024.
iNaturalist Observation 288394156.
4982.
6/9/2025.
iNaturalist Observation 288395683.
4983.
6/9/2025.
iNaturalist Observation 288395765.
4984.
6/9/2025.
iNaturalist Observation 288467344.
4985.
6/9/2025.
iNaturalist Observation 347637365.
4986.
4/5/2026.
iNaturalist Observation 349032446.
4987.
4/11/2026.
iNaturalist Observation 349054430.
4988.
4/11/2026.
iNaturalist Observation 354770791.
4989.
4/25/2026.
iNaturalist Observation 355026928.
4990.
4/25/2026.
.
Campanulaceae
Campanula petiolata A. DC. (Syn: Campanula rotundifolia L. ) Western Harebell. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 50669665. 5095. 6/22/2020. iNaturalist Observation 126286238. 5096. 7/14/2022. iNaturalist Observation 225827171. 5097. 6/28/2024. iNaturalist Observation 231115606. 5098. 7/22/2024. .
Caprifoliaceae
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. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
6180.
6/8/2026.
Juniperus scopulorum, Artemisia frigida, A. ludoviciana, Grindelia subalpina, Opuntia polyacantha, Penstemon virens, Cercocarpus montanus,
trail side
Tom Schweich 3595.
8 Jun 2026.
(
Undist.
)
.
Caryophyllaceae
Cerastium arvense L. ssp. strictum Gaudin. (Syn: Cerastium strictum L ) Field Chickweed. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 46536847.
5229.
5/18/2020.
iNaturalist Observation 164748489.
5230.
5/30/2023.
iNaturalist Observation 217823576.
5231.
5/23/2024.
iNaturalist Observation 219888251.
5232.
6/1/2024.
iNaturalist Observation 283276393.
5233.
5/22/2025.
iNaturalist Observation 289996477.
5234.
6/15/2025.
.
.
Silene latifolia Poir. (Syn: Lychnis alba Mill. , Melandrium dioicum (L.) Cosson & Germain ) Bladder Campion. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
6181.
6/8/2026.
.
 Coll. No. 2127, Silene latifolia |
 Flower of Coll. No. 2127, Silene latifolia |
Crassulaceae
Sedum lanceolatum Torr. (Syn: Amerosedum lanceolatum (Torr.) A. Löve & D. Löve ) Spearleaf Stonecrop. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Type collected by Edwin James on the Long Expedition, described by Torrey, 1827.
- Centennial Cone Park-North,
iNaturalist Observation 48347425.
4794.
6/2/2020.
iNaturalist Observation 120775422.
4795.
6/7/2022.
iNaturalist Observation 122488521.
4796.
6/19/2022.
iNaturalist Observation 164748498.
4797.
5/30/2023.
iNaturalist Observation 171682052.
4798.
7/7/2023.
iNaturalist Observation 217823607.
4799.
5/23/2024.
iNaturalist Observation 219888288.
4800.
6/1/2024.
iNaturalist Observation 222989813.
4801.
6/15/2024.
iNaturalist Observation 222989848.
4802.
6/15/2024.
iNaturalist Observation 283276819.
4803.
5/22/2025.
iNaturalist Observation 287776052.
4804.
6/7/2025.
iNaturalist Observation 288386428.
4805.
6/9/2025.
iNaturalist Observation 288388386.
4806.
6/9/2025.
iNaturalist Observation 288394289.
4807.
6/9/2025.
iNaturalist Observation 288472571.
4808.
6/9/2025.
iNaturalist Observation 288473723.
4809.
6/9/2025.
iNaturalist Observation 289995658.
4810.
6/15/2025.
.
Euphorbiaceae
Euphorbia virgata Engelm. (Syn: Euphorbia esula L. [misapplied] , Euphorbia esula L. [misapplied] var. uralensis (Fisch. ex Link) Dorn ) Leafy Spurge. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 27590283.
4924.
6/23/2019.
iNaturalist Observation 219888272.
4925.
6/1/2024.
iNaturalist Observation 225827206.
4926.
6/28/2024.
iNaturalist Observation 288387029.
4927.
6/9/2025.
iNaturalist Observation 288387286.
4928.
6/9/2025.
.
 Euphorbia virgata “Leafy Spurge” on a ridge above Twin Creek. |
Fabaceae
Astragalus agrestis Douglas ex G. Don. Purple Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 290000909.
4849.
6/15/2025.
.
.
 Astragalus agrestis |
 Coll. No. 1402, Astragalus agrestis |
 Coll. No. 2989, Astragalus agrestis. |
 Coll. No. 1398, Astragalus agrestis |
Astragalus flexuosus G. Don. Flexible Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 126285676.
4850.
7/14/2022.
iNaturalist Observation 171682081.
4851.
7/7/2023.
iNaturalist Observation 219888285.
4852.
6/1/2024.
iNaturalist Observation 283275918.
4853.
5/22/2025.
iNaturalist Observation 288391122.
4854.
6/9/2025.
iNaturalist Observation 288393503.
4855.
6/9/2025.
iNaturalist Observation 288473001.
4856.
6/9/2025.
.
.
Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh. (Syn: Astragalus adsurgens Pall. ) Prairie Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Perennial herb, to 40 cm., caulescent, ascending, hairs dolabriform; Leaves, cauline, stipules, free, 12 mm., compound, petiole, 5 mm., blade, 100 mm., leaflets, #17-21, 17-21 mm. × 5 mm. wide, elliptic, tip cuspidate, terminal leaflet jointed to rachis; Inflorescence, raceme, dense, bracts, 9 mm., 30+ flowers, ascending, Calyx, tube 4.5-6 mm. + lobes 5 mm. = 11 mm., hairs, black and white, dolabriform; Flowers, 14 mm., pale blue-lavender to whitish, banner, 14 mm, wings, claw 6 mm. + blade 6 mm. keel, 11 mm.; Ovary, 4.5 mm. × 1.3 mm. wide, densely hairy, Legume, more erect than flower (Described from Coll. No. 1400, and 3261).
- Centennial Cone Park-North,
iNaturalist Observation 171682023.
4857.
7/7/2023.
iNaturalist Observation 222989858.
4858.
6/15/2024.
iNaturalist Observation 225827166.
4859.
6/28/2024.
iNaturalist Observation 288390526.
4860.
6/9/2025.
iNaturalist Observation 288392752.
4861.
6/9/2025.
iNaturalist Observation 288392955.
4862.
6/9/2025.
iNaturalist Observation 289999687.
4863.
6/15/2025.
iNaturalist Observation 295885393.
4864.
7/5/2025.
iNaturalist Observation 49133363.
4865.
6/8/2020.
iNaturalist Observation 126281663.
4866.
7/14/2022.
iNaturalist Observation 287774665.
4867.
6/7/2025.
.
.
 Coll. No. 3160, Astragalus laxmannii var. robustior. |
 Coll. No. 1400, Astragalus laxmannii var. robustior |
Astragalus miser Douglas ex. Hook. var. oblongifolius (Rydb.) Cronquist. Timber Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North,
iNaturalist Observation 171682080.
4868.
7/7/2023.
.
.
 Coll. No. 3155, Astragalus miser var. oblongifolius. |
Astragalus shortianus [Nutt. ex] Torr. & A.Gray. Short's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 43479201.
4869.
4/25/2020.
iNaturalist Observation 120773713.
4870.
6/7/2022.
iNaturalist Observation 157876207.
4871.
4/29/2023.
iNaturalist Observation 164145847.
4872.
5/27/2023.
iNaturalist Observation 164748528.
4873.
5/30/2023.
iNaturalist Observation 207537981.
4874.
4/15/2024.
iNaturalist Observation 217216418.
4875.
5/19/2024.
iNaturalist Observation 217823566.
4876.
5/23/2024.
iNaturalist Observation 217823599.
4877.
5/23/2024.
iNaturalist Observation 218516037.
4878.
5/24/2024.
iNaturalist Observation 219888243.
4879.
6/1/2024.
iNaturalist Observation 219888280.
4880.
6/1/2024.
iNaturalist Observation 278250829.
4881.
5/3/2025.
iNaturalist Observation 283274278.
4882.
5/22/2025.
iNaturalist Observation 288395839.
4883.
6/9/2025.
iNaturalist Observation 349030377.
4884.
4/11/2026.
.
.
 Coll. No. 1405, fragments of an Astragalus, maybe A. shortianus |
 Pieces of Coll. No. 1826, Astragalus shortianus |
Lupinus argenteus Pursh. Loosely Flowered Silver Lupine. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 126285678. 4885. 7/14/2022. iNaturalist Observation 171682049. 4886. 7/7/2023. iNaturalist Observation 219888238. 4887. 6/1/2024. iNaturalist Observation 231115612. 4888. 7/22/2024. iNaturalist Observation 278251764. 4889. 5/3/2025. . .
Medicago lupulina L. Black Medick. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
6183.
6/8/2026.
.
.
 Coll. No. 1803, Medicago lupulina. |
 Coll. No. 1803, Medicago lupulina |
 Coll. No. 1803, Medicago lupulina |
 Coll. No. 1803, Medicago lupulina |
Melilotus officinalis (L.) Lam. Yellow Sweet Clover. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 295885310.
4890.
7/5/2025.
.
.
 Inflorescence of Coll. No. 1687, Melilotus officinalis |
Oxytropis lambertii Pursh. Purple Locoweed. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 120774191.
4891.
6/7/2022.
iNaturalist Observation 171682056.
4892.
7/7/2023.
iNaturalist Observation 176790869.
4893.
6/28/2023.
iNaturalist Observation 219888254.
4894.
6/1/2024.
iNaturalist Observation 222989810.
4895.
6/15/2024.
iNaturalist Observation 225827165.
4896.
6/28/2024.
iNaturalist Observation 225827186.
4897.
6/28/2024.
iNaturalist Observation 283275767.
4898.
5/22/2025.
iNaturalist Observation 283276069.
4899.
5/22/2025.
iNaturalist Observation 287775190.
4900.
6/7/2025.
iNaturalist Observation 288387641.
4901.
6/9/2025.
iNaturalist Observation 288387778.
4902.
6/9/2025.
iNaturalist Observation 288393444.
4903.
6/9/2025.
iNaturalist Observation 288468158.
4904.
6/9/2025.
iNaturalist Observation 288468599.
4905.
6/9/2025.
iNaturalist Observation 288473151.
4906.
6/9/2025.
iNaturalist Observation 288473217.
4907.
6/9/2025.
iNaturalist Observation 288473313.
4908.
6/9/2025.
iNaturalist Observation 288473395.
4909.
6/9/2025.
iNaturalist Observation 288478965.
4910.
6/9/2025.
iNaturalist Observation 288480018.
4911.
6/9/2025.
iNaturalist Observation 289998725.
4912.
6/15/2025.
iNaturalist Observation 291053172.
4913.
6/19/2025.
iNaturalist Observation 295885115.
4914.
7/5/2025.
.
 Purple Locoweed (Oxytropis lambertii) on top of North Table Mountain. |
 Coll. No. 1385, Oxytropis lambertii |
 Coll. No. 3415, Oxytropis lambertii. |
Fumariaceae
Corydalis aurea Willd. Scrambled Eggs. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 164748540.
4760.
5/30/2023.
.
Geraniaceae
Erodium cicutarium (L.) L'Her. ex Aiton. Hemlock-leav'd Crane's-bill. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 164748539.
4915.
5/30/2023.
iNaturalist Observation 347636788.
4916.
4/5/2026.
.
.
 Coll. No. 349, Erodium cicutarium |
 Coll. No. 1790, Erodium cicutarium |
 Coll. No. 2063.3, Erodium cicutarium |
 Coll. No. 2063.3, Erodium cicutarium |
 Coll. No. 2063.3, Erodium cicutarium |
Geranium caespitosum James. Pineywoods Geranium. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 171682043.
4917.
7/7/2023.
iNaturalist Observation 222989893.
4918.
6/15/2024.
iNaturalist Observation 225827174.
4919.
6/28/2024.
iNaturalist Observation 231115609.
4920.
7/22/2024.
.
Grossulariaceae
Ribes aureum Pursh. Golden Currant. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 219888306.
4825.
6/1/2024.
iNaturalist Observation 80803830.
4826.
5/29/2021.
iNaturalist Observation 118415515.
4827.
5/23/2022.
iNaturalist Observation 218529178.
4828.
5/24/2024.
iNaturalist Observation 219888259.
4829.
6/1/2024.
iNaturalist Observation 231115608.
4830.
7/22/2024.
.
 Habitat of Coll. No. 1834, Ribes aureum. |
 Grossulariaceae Ribes aureum |
 Grossulariaceae Ribes aureum |
 Ribes aureum in winter. |
 Twigs of Ribes aureum in winter. |
 Coll. No. 1834, Ribes aureum. |
Lamiaceae
Dracocephalum parviflorum Nutt. American Dragonhead. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 171682046.
5037.
7/7/2023.
.
.
 Coll. No. 3049, Dracocephalum parviflorum. |
 Coll. No. 3066, Dracocephalum parviflorum. |
 Coll. No. 3049, Dracocephalum parviflorum. |
Monarda pectinata Nutt. Plains Beebalm. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 126285679.
5038.
7/14/2022.
.
.
 Coll. No. 2349, Monarda pectinata |
 Coll. No. 2349, Monarda pectinata |
 Habitat of Coll. No. 1236, Monarda pectinata |
 Coll. No. 1236, Monarda pectinata |
Scutellaria brittonii Porter. Britton's Skullcap. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 219888257.
5039.
6/1/2024.
iNaturalist Observation 287774398.
5040.
6/7/2025.
iNaturalist Observation 288387617.
5041.
6/9/2025.
iNaturalist Observation 288468064.
5042.
6/9/2025.
.
Linaceae
Linum lewisii Pursh. (Syn: Adenolinum lewisii (Pursh) A. Löve & D. Löve ) Prairie Blue Flax. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 120773712.
4921.
6/7/2022.
iNaturalist Observation 283276394.
4922.
5/22/2025.
iNaturalist Observation 287777515.
4923.
6/7/2025.
.
 Coll. No. 3119, Linum perenne. |
 Coll. No. 823, Linum lewisii |
 Coll. No. 1383, Linum perenne |
 Inflorescence of Coll. No. 1951, Linum lewisii |
Loasaceae
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. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 164748552.
4942.
5/30/2023.
iNaturalist Observation 283275922.
4943.
5/22/2025.
.
.
Mentzelia dispersa S. Watson. (Syn: Acrolasia dispersa (S. Watson) Davidson ) Bushy Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 80723380. 4944. 6/21/2020. . .
Mentzelia multiflora (Nutt.) A. Gray. (Syn: Nuttallia multiflora (Nutt.) Greene ) Adonis Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 51484011. 4945. 6/29/2020. iNaturalist Observation 126284791. 4946. 7/14/2022. .
Montiaceae
Claytonia rosea Rydb. Rocky Mountain Springbeauty. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 155360950.
5220.
4/17/2023.
iNaturalist Observation 164748551.
5221.
5/30/2023.
iNaturalist Observation 207538160.
5222.
4/15/2024.
iNaturalist Observation 217148113.
5223.
5/20/2024.
iNaturalist Observation 217823574.
5224.
5/23/2024.
iNaturalist Observation 218527556.
5225.
5/24/2024.
iNaturalist Observation 219888286.
5226.
6/1/2024.
iNaturalist Observation 278252033.
5227.
5/3/2025.
iNaturalist Observation 349031551.
5228.
4/11/2026.
.
Onagraceae
Oenothera coronopifolia Torr. & A. Gray. Crownleaf Evening Primrose. Hierba de San Juan.. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 88249716.
4991.
7/22/2021.
iNaturalist Observation 171682058.
4992.
7/7/2023.
iNaturalist Observation 222989837.
4993.
6/15/2024.
iNaturalist Observation 235658380.
4994.
8/3/2024.
iNaturalist Observation 287776051.
4995.
6/7/2025.
iNaturalist Observation 288392136.
4996.
6/9/2025.
iNaturalist Observation 288394453.
4997.
6/9/2025.
iNaturalist Observation 290000233.
4998.
6/15/2025.
.
 Obs. No. 1599, Oenothera coronopifolia |
 Coll. No. 3443, Oenothera coronopifolia. |
 Coll. No. 2566, Oenothera coronopifolia |
Papaveraceae
Argemone polyanthemos (Fedde) G.B. Ownbey. Crested Prickly Poppy. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 81896701.
4756.
7/21/2019.
iNaturalist Observation 171682063.
4757.
7/7/2023.
iNaturalist Observation 231115631.
4758.
7/22/2024.
iNaturalist Observation 317038088.
4759.
9/27/2025.
.
Plantaginaceae
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. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 176813508.
5063.
6/28/2023.
iNaturalist Observation 250743235.
5064.
11/5/2024.
iNaturalist Observation 288392699.
5065.
6/9/2025.
iNaturalist Observation 289996474.
5066.
6/15/2025.
iNaturalist Observation 317038131.
5067.
9/27/2025.
.
.
Penstemon secundiflorus Benth. Sidebells Penstemon. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 120774192.
5068.
6/7/2022.
iNaturalist Observation 121060508.
5069.
6/6/2022.
iNaturalist Observation 171682067.
5070.
7/7/2023.
iNaturalist Observation 222989870.
5071.
6/15/2024.
iNaturalist Observation 287775194.
5072.
6/7/2025.
iNaturalist Observation 288387396.
5073.
6/9/2025.
iNaturalist Observation 288388790.
5074.
6/9/2025.
iNaturalist Observation 288390102.
5075.
6/9/2025.
iNaturalist Observation 288391502.
5076.
6/9/2025.
iNaturalist Observation 288468106.
5077.
6/9/2025.
iNaturalist Observation 288468473.
5078.
6/9/2025.
iNaturalist Observation 288469233.
5079.
6/9/2025.
iNaturalist Observation 288469234.
5080.
6/9/2025.
iNaturalist Observation 288479185.
5081.
6/9/2025.
iNaturalist Observation 289999686.
5082.
6/15/2025.
.
.
Penstemon strictus Benth. Rocky Mountain Penstemon. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 225827169. 5083. 6/28/2024. . .
Penstemon virens Pennell ex Rydb. Front Range Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 222989850.
5084.
6/15/2024.
iNaturalist Observation 222989888.
5085.
6/15/2024.
iNaturalist Observation 287774039.
5086.
6/7/2025.
iNaturalist Observation 288395599.
5087.
6/9/2025.
iNaturalist Observation 288479280.
5088.
6/9/2025.
iNaturalist Observation 289994149.
5089.
6/15/2025.
.
.
Penstemon virgatus A. Gray var. asa-grayi (Crosswh.) Dorn. Upright Blue Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 231115594.
5090.
7/22/2024.
iNaturalist Observation 295885352.
5091.
7/5/2025.
iNaturalist Observation 126281656.
5092.
7/14/2022.
.
.
 Coll. No. 2575, Penstemon virgatus var.asa-grayi |
Veronica plantaginea James. (=Synthyris plantaginea (James) Benth.) CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 171682070. 5093. 7/7/2023. iNaturalist Observation 288386958. 5094. 6/9/2025. .
Polemoniaceae
Collomia linearis Nutt. Tiny Trumpet. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Annual; Stem simple, unbranched; Leaves linear, 20-25 mm; Calyx membrane 0, lobes growing with capsule, becoming papery with age; Corolla white, 6-9 mm (Described from Coll. No. 713, 19 Nov 2011).
- Centennial Cone Park-North,
Centennial Cone Open Space. Elk Creek.
Donald L. Hazlett, with Rick Brune 11369.
29 Jun 2000.
(
KHD25009‡
)
.
.
 Obs. No. 3759, Collomia linearis. |
 Coll. No. 2590.4, Collomia linearis |
 Coll. No. 3337, Collomia linearis. |
 Coll. No. 713, Collomia linearis |
 Coll. No. 713, Collomia linearis |
Ipomopsis aggregata (Pursh) V.E. Grant ssp. candida (Rydb.) V.E. Grant & A.D. Grant. Scarlet Gilia. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 126284786.
5013.
7/14/2022.
.
.
 Coll. No. 1228, Ipomopsis aggregata ssp. candida |
 Coll. No. 2565, Ipomopsis aggregata var. candida |
 Coll. No. 1228, Ipomopsis aggregata ssp. candida |
Ipomopsis aggregata (Pursh) V.E. Grant ssp. collina (Greene) Wilken & Allard. Scarlet Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.
Perennial herb, 50-60 cm.; Stem, glandular, few long white hairs; Leaves, basal and cauline similar, 37 mm. × 24 mm. wide, pinnatifid with narrow segments, reduced above; Inflorescence, narrow thyrse; Pedicels, 1-2.5 mm.; Calyx, tube 5 mm. + lobes 1.5 mm., glandular, hyaline sinuses, tips spinulose; Corolla, salverform, tube 25 mm. × 1.8 mm. gradually expanding to 5 mm. wide, + lobes 5 mm., spreading; Stamens, some barely exserted (Described from Coll. No. 2172, 23 Jul 2019).
- Centennial Cone Park-North,
iNaturalist Observation 126284790.
5014.
7/14/2022.
iNaturalist Observation 171682059.
5015.
7/7/2023.
iNaturalist Observation 225827217.
5016.
6/28/2024.
iNaturalist Observation 296123827.
5017.
7/7/2025.
.
 Coll. No. 2172, Ipomopsis aggregata ssp. collina |
Polygonaceae
Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853. (Syn: Pterogonum alatum (Torr.) Gross ) Winged Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
6182.
6/8/2026.
.
.
Eriogonum arcuatum Greene, Pittonia. 4: 319. 1901. Baker's Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 289997839.
5193.
6/15/2025.
iNaturalist Observation 295885333.
5194.
7/5/2025.
.
.
Eriogonum arcuatum Greene, Pittonia. 4: 319. 1901. var. arcuatum. (Syn: E. bakeri Greene , E. jamesii Benth var. flavescens S. Watson ) Baker's Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North,
iNaturalist Observation 126281664.
5195.
7/14/2022.
iNaturalist Observation 171682073.
5196.
7/7/2023.
iNaturalist Observation 225827203.
5197.
6/28/2024.
iNaturalist Observation 231115598.
5198.
7/22/2024.
iNaturalist Observation 294843142.
5199.
6/29/2025.
.
.
 Coll. No. 3476, Eriogonum arcuatum var. arcuatum. |
Eriogonum umbellatum Torrey, Ann. Lyceum Nat. Hist. New York. 2: 241. 1827. Sulphur-Flower Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 46536932.
5200.
5/18/2020.
iNaturalist Observation 120774746.
5201.
6/7/2022.
iNaturalist Observation 122488272.
5202.
6/19/2022.
iNaturalist Observation 126284785.
5203.
7/14/2022.
iNaturalist Observation 219888282.
5204.
6/1/2024.
iNaturalist Observation 222989856.
5205.
6/15/2024.
iNaturalist Observation 225827168.
5206.
6/28/2024.
iNaturalist Observation 250742967.
5207.
11/5/2024.
iNaturalist Observation 287774424.
5208.
6/7/2025.
iNaturalist Observation 287775189.
5209.
6/7/2025.
iNaturalist Observation 288385606.
5210.
6/9/2025.
iNaturalist Observation 289995655.
5211.
6/15/2025.
.
.
 Habitat of Coll. No. 1445, Eriogonum umbellatum |
Eriogonum umbellatum Torr. var. umbellatum. Sulphur-Flower Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
Type collected “near the Rocky Mountains” by Edwin James, 1820. Described by Torrey in 1827.
- Centennial Cone Park-North,
iNaturalist Observation 120774744.
5212.
6/7/2022.
.
Primulaceae
Androsace septentrionalis L. (Syn: Androsace septentrionalis L. ssp. subumbellata (A. Nelson) G. T. Robbins ) Pygmyflower Rockjasmine. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 218527244.
5009.
5/24/2024.
.
 Coll. No. 1468, Androsace septentrionalis |
 Details of the umbel of Coll. No. 1907, Androsace septentrionalis |
Ranunculaceae
Clematis hirsutissima Pursh. (Syn: Coriflora hirsutissima (Pursh) W. A. Weber ) Hairy Clematis, Sugar Bowls. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 16034755.
5236.
5/30/2014.
iNaturalist Observation 80160188.
5237.
5/24/2021.
iNaturalist Observation 120775433.
5238.
6/7/2022.
iNaturalist Observation 164748532.
5239.
5/30/2023.
iNaturalist Observation 165053752.
5240.
5/29/2023.
iNaturalist Observation 176806265.
5241.
6/28/2023.
iNaturalist Observation 216666973.
5242.
5/18/2024.
iNaturalist Observation 217148051.
5243.
5/20/2024.
iNaturalist Observation 217216357.
5244.
5/19/2024.
iNaturalist Observation 217823549.
5245.
5/23/2024.
iNaturalist Observation 218519016.
5246.
5/24/2024.
iNaturalist Observation 219888296.
5247.
6/1/2024.
iNaturalist Observation 278251052.
5248.
5/3/2025.
iNaturalist Observation 281905110.
5249.
5/17/2025.
iNaturalist Observation 283276464.
5250.
5/22/2025.
iNaturalist Observation 287774399.
5251.
6/7/2025.
iNaturalist Observation 288395583.
5252.
6/9/2025.
iNaturalist Observation 288467112.
5253.
6/9/2025.
iNaturalist Observation 353800217.
5254.
4/25/2026.
.
.
 Coll. No. 2500, Clematis hirsutissima. |
 Coll. No. 2823, Clematis, c.f. C. hirsutissima. |
Cyrtorhyncha ranunculina Nutt. Ex Torrey & A. Gray. (Syn: Ranunculus ranunculinus (Nutt.) Rydb. ) Tadpole Buttenrcup. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 164748536. 5255. 5/30/2023. . .
Delphinium nuttallianum Pritz. Twolobe Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 46537009.
5256.
5/18/2020.
iNaturalist Observation 46885050.
5257.
5/22/2020.
iNaturalist Observation 120775429.
5258.
6/7/2022.
iNaturalist Observation 217823570.
5259.
5/23/2024.
iNaturalist Observation 219888218.
5260.
6/1/2024.
iNaturalist Observation 278250828.
5261.
5/3/2025.
iNaturalist Observation 278253649.
5262.
5/3/2025.
iNaturalist Observation 287773680.
5263.
6/7/2025.
.
.
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. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 43478809.
5264.
4/25/2020.
iNaturalist Observation 46536808.
5265.
5/18/2020.
iNaturalist Observation 112902713.
5266.
4/25/2022.
iNaturalist Observation 120774194.
5267.
6/7/2022.
iNaturalist Observation 120775430.
5268.
6/7/2022.
iNaturalist Observation 157877783.
5269.
4/29/2023.
iNaturalist Observation 164073609.
5270.
5/27/2023.
iNaturalist Observation 164748564.
5271.
5/30/2023.
iNaturalist Observation 176795677.
5272.
6/28/2023.
iNaturalist Observation 217823547.
5273.
5/23/2024.
iNaturalist Observation 218519636.
5274.
5/24/2024.
iNaturalist Observation 219888245.
5275.
6/1/2024.
iNaturalist Observation 278252039.
5276.
5/3/2025.
iNaturalist Observation 281918426.
5277.
5/17/2025.
iNaturalist Observation 349054567.
5278.
4/11/2026.
.
.
 Pulsatilla nuttalliana under Ponderosa pines. |
 Coll. No. 1075, Pulsatilla nuttalliana |
 Coll. No. 1793, Pulsatilla nuttalliana |
Ranunculus abortivus L. Littleleaf Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North,
Centennial Cone Open Space. Elk Creek
Donald L. Hazlett 11370.
29 Jun 2000.
(
KHD25020‡
)
.
 Coll. No. 3082, Ranunculus abortivus. |
Rosaceae
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. Saskatoon Serviceberry. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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)
- Centennial Cone Park-North,
iNaturalist Observation 219888295.
4831.
6/1/2024.
.
.
Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 93850104.
4832.
9/5/2021.
.
.
Drymocallis fissa (Nutt.) Rydb. (Syn: Potentilla fissa Nutt. ex Torr. & A.Gray ) CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 217823554.
4833.
5/23/2024.
iNaturalist Observation 219888292.
4834.
6/1/2024.
iNaturalist Observation 283275242.
4835.
5/22/2025.
iNaturalist Observation 289999284.
4836.
6/15/2025.
.
.
 Coll. No. 1099, Drymocallis fissa |
 Coll. No. 1099, Drymocallis fissa |
 Coll. No. 1911, Drymocallis fissa |
Physocarpus monogynus (Torr.) J.M. Coult. (Syn: Spiraea monogyna Torr. ) Mountain Ninebark. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 222989839.
4837.
6/15/2024.
iNaturalist Observation 287776627.
4838.
6/7/2025.
.
.
Potentilla hippiana Lehm. Wooly Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, iNaturalist Observation 126286231. 4839. 7/14/2022. . .
Potentilla pensylvanica L. Prairie Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
Tom Schweich 3596.
8 Jun 2026.
(
Undist.
)
.
.
 Coll. No. 2136, Potentilla pensylvanica |
 Coll. No. 2864, Potentilla pensylvanica. |
Prunus virginiana L. Chokecherry. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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.
- Centennial Cone Park-North,
iNaturalist Observation 219888290.
4840.
6/1/2024.
.
.
Rubus deliciosus Torr. (Syn: Oreobatus deliciosus Torr.(E. James ex Torr.) Rydb. ) Delicious raspberry. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North,
iNaturalist Observation 120774742.
4841.
6/7/2022.
iNaturalist Observation 217823562.
4842.
5/23/2024.
iNaturalist Observation 219888255.
4843.
6/1/2024.
iNaturalist Observation 220146954.
4844.
6/2/2024.
iNaturalist Observation 222989884.
4845.
6/15/2024.
iNaturalist Observation 287774429.
4846.
6/7/2025.
iNaturalist Observation 288392258.
4847.
6/9/2025.
iNaturalist Observation 288466920.
4848.
6/9/2025.
.
 Coll. No. 1091, Rubus deliciosus |
 Coll. No. 1091, Rubus deliciosus |
 Coll. No. 1091, Rubus deliciosus |
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. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 289997105.
5192.
6/15/2025.
.
Sapindaceae
Acer glabrum Torr. var. glabrum. (Syn: A. glabrum Torr. var. torreyi (Greene) Smiley ) Rocky Mountain Maple. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 117063146.
4930.
5/14/2022.
iNaturalist Observation 217149113.
4931.
5/20/2024.
iNaturalist Observation 217823583.
4932.
5/23/2024.
iNaturalist Observation 283276398.
4933.
5/22/2025.
.
Saxifragaceae
Heuchera parvifolia Nutt. ex Torr. & A. Gray. Littleleaf Alumroot. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
… Inflorescence, (not secund) …
- Centennial Cone Park-North,
iNaturalist Observation 217823551.
4811.
5/23/2024.
iNaturalist Observation 287774395.
4812.
6/7/2025.
iNaturalist Observation 288395961.
4813.
6/9/2025.
.
.
 Coll. No. 1655, Heuchera parvifolia |
 Coll. No. 2928, Heuchera parvifolia. |
 Coll. No. 3274, Heuchera parvifolia. |
Micranthes rhomboidea (Greene) Small. (Syn: Saxifraga rhomboidea Greene ) Diamondleaf Saxifrage. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 164748530.
4814.
5/30/2023.
iNaturalist Observation 217148385.
4815.
5/20/2024.
iNaturalist Observation 217823537.
4816.
5/23/2024.
iNaturalist Observation 218519474.
4817.
5/24/2024.
iNaturalist Observation 219888273.
4818.
6/1/2024.
iNaturalist Observation 278250660.
4819.
5/3/2025.
iNaturalist Observation 281925778.
4820.
5/17/2025.
iNaturalist Observation 283274284.
4821.
5/22/2025.
iNaturalist Observation 287776629.
4822.
6/7/2025.
iNaturalist Observation 288386715.
4823.
6/9/2025.
iNaturalist Observation 288395910.
4824.
6/9/2025.
.
 Coll. No. 2262, Micranthes rhomboidea |
 Coll. No. 2247, Micranthes rhomboidea |
 Coll. No. 2262, Micranthes rhomboidea |
Scrophulariaceae
Verbascum thapsus L. Common Mullein. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 288385719.
5044.
6/9/2025.
iNaturalist Observation 288394518.
5045.
6/9/2025.
iNaturalist Observation 288395174.
5046.
6/9/2025.
.
 Package of Mullein in the Pharmacy at Fort Hartsuff. |
 Dense colonies of Common Mullein (Verbascum thapsus) in Cottonwood Canyon |
 Collection No. 512, Verbascum thapsus |
Solanaceae
Solanum triflorum Nutt. Cutleaf Nightshade. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North, iNaturalist Observation 182849529. 5043. 9/11/2023. .
Violaceae
Viola nuttallii Pursh. Nuttall's Violet. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 41941200.
4934.
4/11/2020.
iNaturalist Observation 157877666.
4935.
4/29/2023.
iNaturalist Observation 207538041.
4936.
4/15/2024.
iNaturalist Observation 217823572.
4937.
5/23/2024.
iNaturalist Observation 219888267.
4938.
6/1/2024.
iNaturalist Observation 278251423.
4939.
5/3/2025.
iNaturalist Observation 278252032.
4940.
5/3/2025.
iNaturalist Observation 283274444.
4941.
5/22/2025.
.
Amaryllidaceae
Allium cernuum Roth. Nodding Onion. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 88249607.
5166.
7/22/2021.
iNaturalist Observation 231115587.
5167.
7/22/2024.
.
 Habitat of Coll. No. 1240, Allium cernuum |
 Coll. No. 1240, Allium cernuum |
 Coll. No. 3189, Allium cernuum. |
Asparagaceae
Leucocrinum montanum Nutt. ex A. Gray. Star Lily. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 43977151.
5168.
4/27/2020.
iNaturalist Observation 46884315.
5169.
5/22/2020.
iNaturalist Observation 66102525.
5170.
4/25/2020.
iNaturalist Observation 112902778.
5171.
4/25/2022.
iNaturalist Observation 120773721.
5172.
6/7/2022.
iNaturalist Observation 207538009.
5173.
4/15/2024.
iNaturalist Observation 217823523.
5174.
5/23/2024.
iNaturalist Observation 217823589.
5175.
5/23/2024.
iNaturalist Observation 218514350.
5176.
5/24/2024.
iNaturalist Observation 219888215.
5177.
6/1/2024.
iNaturalist Observation 219888233.
5178.
6/1/2024.
iNaturalist Observation 278250664.
5179.
5/3/2025.
iNaturalist Observation 278252031.
5180.
5/3/2025.
iNaturalist Observation 283273551.
5181.
5/22/2025.
iNaturalist Observation 288385010.
5182.
6/9/2025.
iNaturalist Observation 288394032.
5183.
6/9/2025.
iNaturalist Observation 288396048.
5184.
6/9/2025.
iNaturalist Observation 349032082.
5185.
4/11/2026.
iNaturalist Observation 349054843.
5186.
4/11/2026.
iNaturalist Observation 354771739.
5187.
4/25/2026.
.
.
Yucca glauca Nutt. Soapweed Yucca. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 171682077.
5188.
7/7/2023.
iNaturalist Observation 289994153.
5189.
6/15/2025.
.
 Yucca glauca “Soapweed Yucca” on Dakota Ridge. |
Commelinaceae
Tradescantia occidentalis (Britton) Smyth. Prairie Spiderwort. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 120774202.
5147.
6/7/2022.
iNaturalist Observation 164748544.
5148.
5/30/2023.
iNaturalist Observation 171682064.
5149.
7/7/2023.
iNaturalist Observation 219888268.
5150.
6/1/2024.
iNaturalist Observation 222989877.
5151.
6/15/2024.
iNaturalist Observation 283276064.
5152.
5/22/2025.
iNaturalist Observation 287774392.
5153.
6/7/2025.
iNaturalist Observation 287774666.
5154.
6/7/2025.
iNaturalist Observation 288387415.
5155.
6/9/2025.
iNaturalist Observation 288387465.
5156.
6/9/2025.
iNaturalist Observation 288387874.
5157.
6/9/2025.
iNaturalist Observation 288390310.
5158.
6/9/2025.
iNaturalist Observation 288390475.
5159.
6/9/2025.
.
 A Tradescantia occidentalis “Prairie Spiderwort” with intense color. |
 Habitat of Coll. No. 1142, Tradescantia occidentalis |
 Color variation in Tradescantia occidentalis. |
Cyperaceae
Scirpus microcarpus J. Presl & C. Presl. Panicled Rush. CalPhotos. Jepson eFlora. SEINet Taxon.
Perennial terrestrial herb of wet places, to 50-60 cm, glabrous throughout; Stem leafy, flowering stems with cauline leaves > 1; Leaves, cauline present; Inflorescence, terminal, of many spikelets on pedicels up to 3 cm; Spikelets ±30 flowers, not flat, in head-like clusters; Bracts, spiraled? (not 2-ranked); Flowers many per spikelet, open, pistillate and staminate flowers in same spikelet; Perigynium absent; Perianth bristles ≥fruit, slightly recurved, uniformly finely-toothed; Pistils 1; Stigmas 2; Fruit, achene, 1-seeded, 2-angled (Described from Coll. No. 521, 2 Aug 2007, and Coll. No. 900, 24 Aug 2012).
- Centennial Cone Park-North,
Centennial Cone Open Space. Elk Creek
Donald L. Hazlett, with Rick Brune 11381.
29 Jun 2000.
(
KHD25006‡
)
.
 Coll. No. 900, Scirpus microcarpus |
 Coll. No. 521, Scirpus microcarpus |
 Coll. No. 900, Scirpus microcarpus |
Juncaceae
Juncus nodosus L. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North, Centennial Cone Open Space. Elk Creek north of Clear Creek Canyon Rick Brune, with Donald L. Haxlett 18344. 16 Aug 2000. ( KHD20995‡ ) .
Liliaceae
Calochortus gunnisonii S. Watson. Gunnison's Mariposa Lily. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 51483572.
5160.
6/29/2020.
iNaturalist Observation 126281657.
5161.
7/14/2022.
iNaturalist Observation 132229908.
5162.
7/13/2022.
iNaturalist Observation 171682084.
5163.
7/7/2023.
iNaturalist Observation 231115627.
5164.
7/22/2024.
iNaturalist Observation 295885215.
5165.
7/5/2025.
.
Orchidaceae
Platanthera aquilonis Sheviak. Northern Green Orchid. CalPhotos. Jepson eFlora. SEINet Taxon.
- Centennial Cone Park-North,
iNaturalist Observation 84620492.
5190.
6/25/2021.
.
 Coll. No. 3437, Platanthera? |
 Coll. No. 2892, Platanthera aquilonis. |
 Coll. No. 3437, Platanthera aquilonis. |
 Flower of Coll. No. 2892, Platanthera aquilonis. |
Poaceae
Bouteloua gracilis (Kunth) Lag. ex Griffiths. (Syn: Chondrosum gracile Kunth ) Blue Grama. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
- Centennial Cone Park-North,
iNaturalist Observation 250741466.
4947.
11/5/2024.
.
.
Bromus inermis Leyss. (Syn: B. inermis Leyss. ssp. inermis ) Smooth Brome. CalPhotos. Jepson eFlora. SEINet Taxon. Notes on Colorado Flora.
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).
- Centennial Cone Park-North, iNaturalist Observation 250619945. 4948. 11/5/2024. iNaturalist Observation 295885255. 4949. 7/5/2025. .
| Total number of taxa: | 118 |
| Native Taxa: (serif, italic, bold) | 105 |
| Exotic Taxa: (sans-serif, italic) | 11 |
| Nativity Undetermined: (default font, italic) | 2 |
| Listed Weeds: Identified as Weed | 4 |
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
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Date and time this article was prepared: 8/1/2026 3:21:03 PM.
