Dulichium arundinaceum (Linnaeus) Britton var. arundinaceum . Threeway Sedge. Phen: Jul-Oct. Hab: Streambanks, marshes, bogs, ditches. Dist: Var. arundinaceum ranges from NL (Newfoundland) west to MN, south to FL and TX; also from MT and BC south to CA.
ID notes: Recognizable (even when sterile) by the strongly 3-ranked leaves and culms round in cross-section and hollow.
Origin/Endemic status: Native
Syn: = Ar, FNA23, K3, K4, NE, NY, Pa, Va; < Dulichium arundinaceum (L.) Britton – C, ETx1, F, G, GrPl, GW1, Il, K1, Mi, Mo1, RAB, S, Tn, Tx, Tx, W, WH3, WV