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Montana Field Guide

Montana Field Guides

Western Wild Buttercup - Ranunculus adoneus
Other Names:  Ranunculus eschscholtzii var. adoneus

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Status Under Review
Undetermined Origin

Global Rank: G4G5
State Rank: SU
(see State Rank Reason below)

Agency Status


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State Rank Reason (see State Rank above)
Reported for Montana by Whittemore (FNA)
General Description
Plants perennial. Stems 5-32 cm tall, ascending to erect, glabrous. Basal leaf blades simple,1-5 cm long, several times divided into usually linear segments 0.7-3 mm wide; cauline leaves similar but with progressively shorter petioles. Sepals 5, 3.5-10 mm long, pilose or glabrous, deciduous, spreading. Petals 5-12, 5-15 mm long, yellow. Achenes 2.5-4 mm long, glabrous, arranged 40-70 in an ovoid cluster; beaks 1.4-1.9 mm long, straight or recurved; receptacle glabrous (adapted from: Welsh et al., 1993, A Utah Flora, 2nd ed.).

Range Comments
ID, MT, south to NV, UT, WY and CO (Kartesz in prep. 2012).

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

(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)

Most areas near melting snow in meadows, talus slopes, and confierous communities (adapted from: Welsh et al., 1993, A Utah Flora, 2nd ed.).

The following animal species have been reported as pollinators of this plant species or its genus 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
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Web Search Engines for Articles on "Western Wild Buttercup"
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Citation for data on this website:
Western Wild Buttercup — Ranunculus adoneus.  Montana Field Guide.  .  Retrieved on , from