Carex fissa Mackenzie var. fissa . Section: [26c] Section 3 Multiflorae. Western Hammock Sedge. Phen: May-Jun. Hab: Prairie depressions, eastwards introduced in disturbed areas, including roadside ditches, sediment control ponds, and old railroad stockyards (well-established). Dist: S. IL, MO, se. KS, and OK south to AR and se. TX.
Origin/Endemic status: Native
Syn: = Ar, FNA23, K1, K3, K4, Mo1; = Carex fissa – GrPl; < Carex fissa – ETx1, NcTx, Mackenzie (1931-1935)