Mountain Buttercup - Ranunculus populago
State Rank Reason (see State Rank above)
Numerous collections at MONT and MONTU, nearly all from the Bitterroots.
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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
AK to NL south to AZ, NM, IA and NY (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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(Observations spanning multiple months or years are excluded from time charts)
The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus auricomus
, Bombus bifarius
, Bombus nevadensis
, and Bombus bimaculatus
(Macior 1968, Thorp et al. 1983).
- Literature Cited AboveLegend: View Online Publication
- 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 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.