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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

Synonymy: = C, F, FNA23, G, Il, K1, K3, K4, NE, NY, Pa, RAB, S, Tat, Va; = Cyperus nuttallii Eddy; = Cyperus polystachyos Rottb. var. filicinus (Vahl) C.B.Clarke; < Cyperus polystachyos Rottb. – GW1, WH3

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily: 9

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Radford, Ahles and Bell | Original Image ⭷


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