Carex lacustris Willdenow. Section: [26oo] Section 28 Paludosae. Phen: May-Sep. Hab: Calcareous spring marshes, freshwater to oligohaline tidal marshes. Dist: QC west to SK, south to e. VA, w. VA, and NE.
Origin/Endemic status: Native
Synonymy: = C, F, FNA23, GrPl, Il, K1, K3, K4, Mi, Mo1, NE, NY, Pa, Va, Mackenzie (1931-1935); = Carex lacustris Willd. var. lacustris – G