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Montana Field Guide

Montana Field Guides

Heart-leaved Arnica - Arnica cordifolia

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Stems solitary or clustered, ascending to erect, 10–50 cm. Herbage villous, glandular-puberulent. Leaves: basal long-petiolate on separate shoots; blades cordate, ovate, dentate, 4–12 cm long; cauline 2 to 4 pairs, petiolate smaller and less cordate upward. Heads 1 to 3; involucre villous, glandular, campanulate, 13–20 mm high. Rays 10 to 15; ligules 1–3 cm long. Pappus short-barbed, white. Achenes hirsute, 5–10 mm long, often glandular (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


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

Observations in Montana Natural Heritage Program Database
Number of Observations: 4577

(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
    Do you know of a citation we're missing?
    • Conway, T.M. 1982. Response of understory vegetation to varied lodgepole pine (Pinus contorta) spacing intervals in Western Montana. M.Sc. Thesis. Bpzeman, MT: Montana State University. 76 p.
    • Johnson, T. W. 1982. An analysis of pack and saddle stock grazing areas in the Bob Marshall Wilderness. M.Sc.Thesis. Bozeman, MT: Montana State University. 105 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Heart-leaved Arnica — Arnica cordifolia.  Montana Field Guide.  .  Retrieved on , from