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Montana Field Guide

Montana Field Guides

Mountain Arnica - Arnica latifolia

Native Species

Global Rank: GNR
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Stems mostly solitary, ascending to erect, 8–60 cm. Herbage glabrate to weakly tomentose, sometimes glandular-pubescent. Leaves: basal long-petiolate on separate shoots; blades lanceolate to sagittate, dentate, 2–12 cm long; cauline 2 to 4 pairs, lanceolate to ovate, denticulate, sessile to short-petiolate. Heads 1 to 9; involucre turbinate, 9–18 mm high. Rays 5 to 15; ligules 15–30 mm long. Pappus short-barbed, white. Achenes 5–10 mm long, hirsute or sometimes glandular above, glabrous below (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

We have varieties latifolia and gracilis (Rydb.) Cronquist.

Species Range
Montana Range


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

Observations in Montana Natural Heritage Program Database
Number of Observations: 3180

(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)


  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Steerey, W. F. 1979. Distribution, range use and population characteristics of Mule Deer associated with the Schafer Creek winter range, Bridger Mountains, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 119 p.
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Citation for data on this website:
Mountain Arnica — Arnica latifolia.  Montana Field Guide.  .  Retrieved on , from