Scirpus polyphyllus Vahl. Phen: Jul-Sep. Hab: Marshes, floodplain forests, mountain bogs, seeps, fens. Dist: MA and VT west to IL and s. MO, south to nc. GA (Jones & Coile 1988) and AL.
Origin/Endemic status: Native
Syn: = Ar, C, F, FNA23, G, GW1, Il, K1, K3, K4, Mo1, NE, NY, Pa, RAB, S, Tn, Va, W, WV, Schuyler (1967)