Common Name:
EARLY BUTTERCUP
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Coefficient of Conservatism:
10
Coefficient of Wetness:
3
Wetness Index:
FACU
Physiognomy:
Nt P-Forb
A. A. Reznicek
Sandy oak savanna, dry grassy openings and and prairies; shallow soil over limestone pavement especially on Drummond Island; rock outcrops, ledges and "balds." Widespread but quite local in southern Michigan; rare on rock outcrops in the Upper Peninsula.
This is a very early-flowering and showy species, usually readily distinguished from small plants of R. hispidus by the less sharply toothed leaves and the short tuberous-swollen roots.
Locations
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Allegan County
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Berrien County
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Branch County
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Calhoun County
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Chippewa County
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Only on Drummond Island
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Clinton County
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Eaton County
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Genesee County
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Gratiot County
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Hillsdale County
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Ionia County
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Jackson County
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Kalamazoo County
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Kent County
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Keweenaw County
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Including Isle Royale
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Lake County
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Lenawee County
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Livingston County
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Macomb County
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Marquette County
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Mecosta County
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Montcalm County
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Muskegon County
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Newaygo County
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Oakland County
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Oceana County
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St. Clair County
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St. Joseph County
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Washtenaw County
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Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 20, 2021. https://michiganflora.net/species.aspx?id=2387.