Schoenoplectus subterminalis (Torrey) Soják. Phen: May-Jun; Jun-Aug. Hab: Beaver ponds, bogs, blackwater creeks, peat mats, in highly acid water. Dist: NL (Newfoundland) west to s. AK, south to se. NC, nc. SC, MO, UT (?), and n. CA (the distribution discontinuous, especially southward); disjunct southwards in s. AL and Panhandle FL.
Origin/Endemic status: Native
Syn: = FNA23, Il, K1, K3, K4, Mi, Mo1, NE, NY, Pa, Strong (1994); = Scirpus subterminalis – C, F, G, GW1, RAB, S, W