Paspalum distichum Linnaeus. Joint Paspalum, Knotgrass. Phen: May-Nov. Hab: Brackish (especially oligohaline) and freshwater marshes, interdune swales and marshes, waterfowl impoundments. Dist: NJ, KS, and WA south to s. FL, s. TX, s. CA, and through the New World and Old World tropics. Reported for s. IN by Bill Thomas (pers.comm., 2022).

Origin/Endemic status: Native

Synonymy: = Ar, C, ETx1, F, FlGr, FNA25, G, HC, K1, K3, K4, Meso6, Mex, NcTx, Pa, RAB, S, Tn, Tx, Va, W, WH3, Silveus (1942); = Paspalum paspaloides (Michx.) Scribn.; < Paspalum distichum L. – Bah, GW1; > Paspalum distichum L. var. distichum – Mo1

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