Carex richardsonii R. Brown. Section: [26ccc] Section 40 Clandestinae. Phen: Late Apr-May. Hab: Open meadows over serpentine; westwards in moist prairies, hill prairies, sand dunes Dist: VT west to AB, south to DC, MD, OH, IN, IA, and SD.
Origin/Endemic status: Native
Synonymy: = C, F, FNA23, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Pa, Mackenzie (1931-1935)