Rhynchospora fusca (Linnaeus) W.T. Aiton. Phen: Jul-Oct. Hab: Atlantic white-cedar swamps, sea-level fens, fens. Dist: Circumboreal, in North America from NL (Labrador) west to SK, south to NJ, e. PA (Rhoads & Block 2007), MD, DE, WV (FNA; Harmon, Ford-Werntz, & Grafton 2006), IN, IL, and MN.
Origin/Endemic status: Native
Synonymy: = C, F, FNA23, G, K1, K3, K4, Mi, NE, NY, Pa, Gale (1944), McMillan (2007)