SimplePlant

Cyperaceae

Uniola flatsedge

Cyperus unioloides R.Br.

Family
Cyperaceae
Genus
Cyperus

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Uniola flatsedge: Cyperus unioloides
Photo: aaliyahm, CC BY-SA 4.0, from Wikimedia Commons

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Common names

By language (2)
Chinese
禾状扁莎, 水社扁莎, 浙江扁莎, 禾狀扁莎
English
Uniola flatsedge

Synonyms

  • Cyperus angulatus Nees
  • Cyperus bromoides Link
  • Cyperus lanceus F.Muell.
  • Cyperus luteolus Boeckeler
  • Cyperus overlaetii (Cherm. ex S.S.Hooper & J.Raynal) Lye
  • Cyperus selloanus Boeckeler
  • Cyperus spinuliferus Boeckeler
  • Cyperus spissiflorus (C.B.Clarke) K.Schum.
  • Cyperus taubertii Boeckeler
  • Cyperus tosaensis Makino
  • Cyperus unioloides f. insularis (Domin) Kük.
  • Cyperus unioloides f. pallescens Kük.
  • Cyperus unioloides f. reductus Kük.
  • Cyperus unioloides var. bromoides (Link) C.B.Clarke
  • Cyperus unioloides var. compositus T.Koyama
  • Cyperus unioloides var. fissivaginatus Kük.
  • Cyperus unioloides var. wightii C.B.Clarke
  • Pycreus angulatus (Nees) Nees ex C.B.Clarke
  • Pycreus angulatus f. bromoides (Link) Lindm.
  • Pycreus angulatus var. wightii Nees ex C.B.Clarke
  • Pycreus chekiangensis Tang & F.T.Wang
  • Pycreus flavescens subsp. laevinux Lye
  • Pycreus overlaetii Cherm. ex S.S.Hooper & J.Raynal
  • Pycreus spissiflorus C.B.Clarke
  • Pycreus umbrosiformis Cherm.
  • Pycreus unioloides (R.Br.) Urb.
  • Pycreus unioloides var. angulatus (Nees) Domin
  • Pycreus unioloides var. compositus (T.Koyama) N.K.Khoi
  • Pycreus unioloides var. insularis Domin
  • Pycreus unioloides var. typicus Domin
  • Pycreus unioloides var. wightii (Nees ex C.B.Clarke) Karthik.

Characteristics

Growth habit
Graminoid
Lifespan
Perennial
In the US and Canada
Lower 48 states: introduced, Puerto Rico: native

Photos

More in Cyperus

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.