Cyperus lancastriensis Porter ex A. Gray. Many-flowered Flatsedge, Porter’s Flatsedge. Phen: Jul-Sep. Hab: Dry woodlands, forests, and fields. Dist: NJ west to WV, OH, and MO, south to GA, c. MS (Morris & MacDonald 2012), and AR.

Origin/Endemic status: Endemic

Synonymy: = Ar, C, F, FNA23, G, GrPl, Il, K1, K3, K4, Mo1, Pa, RAB, S, Tn, Va, W, WV

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