Ranunculus flabellaris Rafinesque. Subgenus: Auricomus. Section: Hecatonia. Phen: Mar-Jul. Hab: Pools in floodplains of small stream swamps, ponds, borrow pits, other stagnant or slowly moving waters. Dist: ME west to BC, south to ne. NC, KY, IN, IL, LA, OK, UT, and CA.
Origin/Endemic status: Native
Synonymy: = Ar, C, F, FNA3, G, GrPl, GW2, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, Tn, Va, Keener (1976); = Ranunculus delphiniifolius Torr. ex Eaton – S