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Montana Field Guide

Montana Field Guides

Hoary Draba - Draba cana
Other Names:  Draba lanceolata, Draba breweri var. cana

Native Species

Global Rank: G5
State Rank: SNR
C-value: 4

Agency Status


External Links

General Description
Perennial from a simple or few-branched caudex. Stems 5–15 cm, rarely branched. Basal leaves oblong, 4–15 mm long, entire to weakly dentate. Stem leaves several, lanceolate, sessile, usually dentate. Vestiture of dense many-branched hairs. Petals white, 2–4 mm long. Fruit erect, 6–10 × 1–2 mm, pubescent, sometimes twisted; style 0.2–0.4 mm long; lower pedicels 1–3 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
AK to QC south to CA, CO, WI and VT (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 8

(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)

Sparsely vegetated, stony soil of grasslands, meadows, cliffs, open forest, gravel bars; montane to alpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • 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:   View Online Publication
    Do you know of a citation we're missing?
    • 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.
    • Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
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Citation for data on this website:
Hoary Draba — Draba cana.  Montana Field Guide.  .  Retrieved on , from