Echinochloa walteri (Pursh) A. Heller. Swamp Barnyard-grass. Phen: Jul-Oct. Hab: Marshes of many kinds. Dist: MA south to FL, west to TX on the outer Coastal Plain; also inland from OH west to WI, south to w. WV, MO, and AR; Mexico to Central America; West Indies.

Origin/Endemic status: Native

Synonymy: = Ar, C, ETx1, F, FlGr, FNA25, GW1, HC, Il, K1, K3, K4, Meso6, Mex, Mi, Mo1, NcTx, NE, NY, Pa, RAB, S, Tn, Tx, Va, W, WH3

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