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Ranunculus fascicularis Muhlenberg ex Bigelow. Subgenus: Ranunculus. Section: Polyanthemos. Thick-root Buttercup, Early Buttercup. Phen: Feb-May; Mar-Jun. Hab: Wet flats with prairie affinities (with Camassia scilloides), rocky barrens and glades over mafic rocks (such as gabbro or diabase), ultramafic outcrop barrens (over olivine), limestone barrens, prairies, oak savannas. Dist: MA and NY west to s. ON, MN, and se. MB, south to c. NC, nc. SC, sw. GA, and e. TX; occurrences which are both south of New England and east of the Appalachians are scattered and disjunct.

Origin/Endemic status: Native

Other Comments: This species is tetraploid (n = 16).

Synonymy: = Ar, C, FNA3, GrPl, GW2, Il, K1, K3, K4, Mi, NcTx, NE, NY, Pa, S, Tn, Va, W, Duncan (1980), Keener (1976); = n/a – RAB, Tat; > Ranunculus apricus Greene – S13; > Ranunculus fascicularis Muhl. ex Bigelow – S13; > Ranunculus fascicularis Muhl. ex Bigelow var. apricus (Greene) Fernald – F, G, Tx; > Ranunculus fascicularis Muhl. ex Bigelow var. fascicularis – F, G, Tx

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC
  • Eastern Mountains and Piedmont: FACU
  • Great Plains: FAC
  • Midwest: FACU
  • Northcentral & Northeast: FACU

Heliophily ?: 6

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image of plant© Scott Ward | Original Image ⭷
image of plant© Alan Cressler: Ranunculus fascicularis, cedar glade 2, Chickamauga and Chattanooga National Military Park, Catoosa County, Georgia 2 by Alan Cressler source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷

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