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Few-seed Whitlow-grass - Draba oligosperma
Native Species
Global Rank:
G5
State Rank:
S5
C-value:
Agency Status
USFWS:
USFS:
BLM:
External Links
General Description
Mat-forming perennial. Stems simple, 1–12 cm. Basal leaves oblanceolate, 3–10 mm long, entire. Stem leaves lacking. Vestiture of sessile pectinate hairs often aligned parallel to the midvein, rarely with some simple or forked cilia. Petals yellow, 3–6 mm long. Fruit ovate, ascending, 2–6 mm × 1.5–3 mm, pubescent with simple hairs; style 0.3–1 mm long; lower pedicels 2–12 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Range Comments
AK south to CA and CO (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 59
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Sparsely vegetated, stony soil of grasslands, open forest, rock outcrops, exposed slopes and ridges; montane to alpine (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
References
- Literature Cited AboveLegend:
View Online Publication
Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Additional ReferencesLegend:
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Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
Hawkins, P.H. 1903. The alpine flora of Montana. M.Sc. Thesis, Bozeman, MT: Montana State University. 24 pp.
Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
Martin, S.A. 1985. Ecology of the Rock Creek bighorn sheep herd, Beartooth Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 152 p.
Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
Rollins, R. C. 1993. The Cruciferae of Continental North America: systematics of the mustard family from the Arctic to Panama. Stanford University Press, Stanford, California. 976 pp.
South, P.R. 1957. Food habits and range use of the mule deer in the Scudder Creek area, Beaverhead County, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 34 p.
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