Rhynchospora corniculata (Lamarck) A. Gray. Phen: Jul-Sep. Hab: Pondcypress savannas in Carolina bays, swamp forests, other wetlands. Dist: Sometimes divided into two varieties: var. corniculata ranges from DE south to FL and west to LA, extending north into KY and MO; also in the West Indies.
Origin/Endemic status: Native
Taxonomy Comments: Var. interior, probably not worth recognition, is distinguished by a shorter and narrower achene, the summit barely broader than the base of the tubercle, and occurs in the Mississippi drainage.
Synonymy: = Ar, ETx1, FNA23, GW1, Il, K1, K3, K4, Mo1, RAB, Tn, Va, WH3, McMillan (2007); = Rynchospora corniculata – S, orthographic variant; > Rhynchospora corniculata (Lam.) A.Gray var. corniculata – C, F, G; > Rhynchospora corniculata (Lam.) A.Gray var. interior Fernald – C, F, G, NcTx, Tx