Cyperus flavicomus Michaux. White-edged Flatsedge. Phen: Jul-Oct. Hab: Ditches, marshes, natural or artificial ponds, especially where seasonally flooded. Dist: Se. VA and KY south through the New World tropics.
ID notes: This species is unlikely to be confused with any other subgenus Pycreus, but may superficially resemble some species in subgenus Cyperus. The lenticular achenes and 2-branched styles are diagnostic.
Origin/Endemic status: Native
Syn: = Ar, C, ETx1, FNA23, K1, K3, K4, Mo1, NY, Tn, Va, W, WH3; = Cyperus albomarginatus – F, G, GW1, RAB, Tx; ? Cyperus sabulosus – S