Ranunculus ambigens S. Watson. Subgenus: Auricomus. Section: Flammula. Water-plantain Crowfoot, Water-plantain Spearwort. Phen: Apr-Jun. Hab: Marshes, swampy forests, ditches. Dist: ME west to MN, south to VA, NC, ne. TN, w. TN, and LA.
Origin/Endemic status: Native
Syn: = C, F, FNA3, G, GW2, Il, K1, K3, K4, Mi, NE, Pa, RAB, Tn, Va, W, WV, Keener (1976); = Ranunculus obtusiusculus Raf. – S
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