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Cyperaceae
Cyperus

not marked as a favorite taxon Cyperus macrostachyos Lamarck. Common name: White-edged Flatsedge. Phenology: Jul-Oct. Habitat: Ditches, marshes, natural or artificial ponds, especially where seasonally flooded. Distribution: Se. Virginia and Kentucky south through the New World tropics.

Glossary (beta!)

ID notes: This species is unlikely to be confused with any other species in subgenus Pycreus, but may superficially resemble some species in subgenus Cyperus. The lenticular achenes and 2-branched styles are diagnostic.

Origin/Endemic status: Native

Taxonomy Comments: Cyperus macrostachyos Lamarck (1791) has nomenclatural priority over C. flavicomus Michaux (1803).

Synonymy ⓘ: = POWO; = Cyperus albomarginatus (Mart. & Schrad. ex Nees) Steud. — F, G, GW1, RAB, Tx; = Cyperus flavicomus Michx. — Ar, C, ETx1, FNA23, K1, K4, Mex, Mo1, NS, NY, Tn, Va, W, WH3; = n/a — Pa; ? Cyperus sabulosus (Mart. & Schrad. ex Nees) Steud. — S, Tat. Basionym: Cyperus macrostachyos Lamarck 1791

Links to other floras: = Cyperus flavicomus - FNA23

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FAC
  • Great Plains: FAC
  • Midwest: FAC
  • Northcentral & Northeast: FAC

Heliophily ⓘ: 9

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image #1 of Cyperus macrostachyos© Keith Bradley | Original Image ⭷
image #2 of Cyperus macrostachyos© Keith Bradley | Original Image ⭷
image #3 of Cyperus macrostachyos© Erik Danielson source | Original Image ⭷
image #4 of Cyperus macrostachyos© Nathan Aaron, some rights reserved (CC BY), uploaded by Nathan Aaron source CC-BY | Original Image ⭷
image #5 of Cyperus macrostachyos© Radford, Ahles and Bell | Original Image ⭷

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Horticultural Information

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