Pennsylvania Buttercup -
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Stems, erect, 20–70 cm with hirsute foliage. Basal leaf blades cordate, ternate, 3–10 cm long; the stalked leaflets deeply 3-lobed, dentate. Flowers with petals 2–4 mm long, shorter than the pilose sepals. Achenes ca. 2 mm long, glabrous with a straight beak ca. 0.7 mm long; head short-cylindrical, 8–15 mm high (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
AK to NL south to AZ, NM, IA and NY (
Lesica et al. 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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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
(Macior 1968, Thorp et al. 1983).
Literature Cited Above
Legend: 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. Macior, L.M. 1968. Bombus (Hymenoptera, Apidae) queen foraging in relation to vernal pollination in Wisconsin. Ecology 49:20-25. Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79. Additional References
Legend: View Online Publication Do you know of a citation we're missing? Cope, M.G. 1992. Distribution, habitat selection and survival of transplanted Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) in the Tobacco Valley, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p. Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp. King, C. R. 1953. The Ranunculaceae of Montana. M.S. Thesis, Bozeman, MT: Montana State College. 82 p. Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.