Flora of the Southeastern United States
2022 Edition


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Cyperus filicinus Vahl. Fern Flatsedge. Phen: Jul-Sep. Hab: Brackish marshes, other maritime habitats. Dist: ME to s. FL, west to LA; West Indies.

ID notes: Often difficult to separate from C. polystachyos and occurring in similar habitats. Detailed examination of the individual scales and achenes (see key to subgenus Pycreus) is required.

Origin/Endemic status: Native

Syn: = C, F, FNA23, G, Il, K1, K3, K4, NE, NY, Pa, RAB, S, Va; < Cyperus polystachyos – GW1, WH3

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image of plant© Gary P. Fleming
image of plant© Collectors SOS