Rumex verticillatus Linnaeus. Swamp Dock. Phen: Apr-Jun; May-Jul. Hab: Tidal freshwater marshes and swamps, but also inland in disturbed areas. Dist: QC, ON, MN, and SD, south to s. FL and se. and c. TX.
Origin/Endemic status: Native
Syn: = Ar, Fl4, FNA5, GrPl, Il, Mi, Mo3, NE, NY, S, Tn, Tx, Va; < Rumex verticillatus – C, F, G, GW2, K1, K3, K4, Pa, RAB, W, WH3