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Montana Field Guide

Montana Field Guides

Wooly Cryptantha - Cryptantha cana

Native Species

Global Rank: G5
State Rank: S4

Agency Status
MNPS Threat Rank:

External Links

General Description
Cespitose perennial from a branched caudex covered in old leaf bases. Stems erect to ascending, 4–15 cm. Herbage sericeous. Leaves mostly basal, petiolate, linear to oblanceolate, acute, 7–30 mm long, becoming sessile above. Inflorescence bracteate below. Flowers: calyx hispid, hirsute, 5–8 mm long in fruit; corolla 3–4 mm long. Nutlets usually solitary, asymmetric, muricate, ca. 3 mm long, sharp-margined; scar widened at the base (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
Big Horn and Carbon cos. MT to SD south to CO and NE (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 49

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Sandy, calcareous soil of open slopes in juniper woodlands; valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P. and P.L. Achuff. 1992. Distribution of vascular plant species of special concern and limited distribution in the Pryor Mountain desert, Carbon County, Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 105 pp.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 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.
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Citation for data on this website:
Wooly Cryptantha — Cryptantha cana.  Montana Field Guide.  .  Retrieved on , from