Carex amphibola Steudel. Section: [26ee] Section 22 Griseae. Eastern Narrowleaf Sedge. Phen: May-Jun. Hab: Moist loamy forests, bottomlands, slopes, uplands. Dist: MA, s. ON, MI, IL, MO, and OK, south to GA, AL, MS, LA, and TX.
Origin/Endemic status: Native
Syn: = Ar, ETx1, FNA23, G, K3, K4, Mi, Mo1, NE, NY, Pa, RAB, S, Tn, Va, Mackenzie (1931-1935); = Carex amphibola var. amphibola – F, K1, Ward (2012a); < Carex amphibola – GW1, Tx