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Sulphur Buttercup - Ranunculus sulphureus
General Description
Stems erect, 3–20 cm with glabrate foliage. Basal leaf blades reniform, 1–3 cm long, 3- to 5-lobed . Flowers with petals 8–12 mm long, ca. twice as long as the sepals. Achenes glabrous or sparsely brown-hairy, ca. 2 mm long with a curved or straight beak 1.5–2 mm long; heads cylindric, 5–8 mm high (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Species Range
Montana Range
Range Descriptions
Native
Range Comments
Circumpolar south to AB, NT and Greenland (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 4
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Map Help and Descriptions
Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Ecology
POLLINATORS 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).
Stewardship Responsibility
References
- 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., B. Christiaens, D. Hanna, L. Larsen, and C. Odegard. 2013. Noteworthy collection. Madroño 60(3): 262-263.
- Web Search Engines for Articles on "Sulphur Buttercup"
