Marsh Cinquefoil - Comarum palustre
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Fairly common in montane to subalpine wetlands and fens, primarily in northwest Montana
Rhizomatous perennial. Stems ascending, prostrate, or floating, reddish, glabrous to sparsely glandular, 20–50 cm. Leaves sheathing-petiolate, pinnately divided into 3 to 7 leaflets; leaflets oblong, sparsely hairy, glaucous beneath, dentate, 2–7 cm long. Inflorescence a leafy, few- to several-flowered, glandular-pubescent cyme. Flowers perfect, perigynous; hypanthium saucer-shaped; sepals ovate, purple, 7–15 mm long, alternate with narrower and shorter bracteoles; petals dark red, 3–7 mm long; stamens usually 20 or more; styles numerous. Fruit a cluster of ovoid achenes, each ca. 1.5 mm long enveloped by the calyx; styles deciduous at maturity, attached laterally (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Distinguished from the genus Potentilla in Montana by the reddish flowers and wetland habitat.
Circumboreal south to CA, WY and OH (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Fens and wetland in the montane and subalpine
- 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.