Ranunculus micranthus Nuttall. Subgenus: Auricomus. Section: Auricomus. Small-flowered Buttercup, Rock Buttercup. Phen: Mar-Jun. Hab: Rich bottomland forests, also upslope on mesic to dry forests and rock outcrops over mafic or calcareous substrates. Dist: MA west to SD, south to e. VA, c. NC, sc. TN, WV, OH, and OK.
Origin/Endemic status: Native
Synonymy: = Ar, C, FNA3, G, GrPl, GW2, Il, K1, K3, K4, NE, NY, Pa, RAB, S, Tn, Va, W, WV, Keener (1976); > Ranunculus micranthus Nutt. var. cymbalistes (Greene) Fernald – F; > Ranunculus micranthus Nutt. var. delitescens (Greene) Fernald – F; > Ranunculus micranthus Nutt. var. micranthus – F
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