Taxon: Cyperus eragrostis Lam.

Genus: Cyperus
Family: Cyperaceae
  Subfamily: Cyperoideae
      Tribe: Cypereae
Nomen number: 400180
Place of publication: Tabl. encycl. 1:146. 1791
Name Verified on: 10-Dec-2009 by ARS Systematic Botanists. Last Changed: 11-Dec-2009
Species priority site is: Arctic and Subarctic Plant Gene Bank (PALM)
Accessions: 3 in National Plant Germplasm System

Common names:

  • drain flat sedge  (Source: F SAust) - English
  • pale galingale  (Source: BSBI) - English
  • tall flat sedge  (Source: Zander Ency) - English
  • umbrella sedge  (Source: Econ Pl Aust) - English
  • frischgrünes Zypergras  (Source: Zander Ency) - German
  • cortadera  (Source: pers. comm.) - Spanish
  • lleivun  (Source: pers. comm.) - Spanish

Economic Importance:

  • Environmental: ornamental (fide Kew Bull 56:291. 2001)
  • Animal food: forage (fide Econ Pl Aust)
  • Weed: (fide Cyper Natal; Econ Pl Aust; Invasive Pl Spec)

Distributional Range:


  • Northern America

    • Northeastern U.S.A.: United States - New Jersey
    • Northwestern U.S.A.: United States - Oregon, - Washington
    • Southeastern U.S.A.: United States - Louisiana, - Mississippi
    • Southwestern U.S.A.: United States - California
  • Southern America

    • Brazil: Brazil
    • Caribbean: Jamaica
    • Northern South America: Suriname
    • Southern South America: Argentina; Chile, - Easter Island; Uruguay
    • Western South America: Bolivia; Peru

  • Naturalized:

  • Africa

    • Macaronesia: Portugal - Azores, - Madeira Islands; Spain - Canary Islands
    • Southern Africa: South Africa
  • Asia-Temperate

    • Caucasus: Georgia
    • Eastern Asia: Japan - Ryukyu Islands; Taiwan
  • Australasia

    • Australia: Australia
    • New Zealand: New Zealand
  • Europe

    • Middle Europe: Czech Republic; Germany; Hungary; Netherlands; Poland; Switzerland
    • Northern Europe: Ireland; United Kingdom
    • Southeastern Europe: Montenegro
    • Southwestern Europe: France; Portugal; Spain
  • Northern America

    • Northeastern U.S.A.: United States - Pennsylvania
    • South-Central U.S.A.: United States - Texas
    • Southeastern U.S.A.: United States - Alabama, - South Carolina
    • Western Canada: Canada - British Columbia

  • Cultivated:

    . also cult.


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  • Allan, H. H. B. et al. Flora of New Zealand. 1961- (F NZeal)
  • Arnold, T. H. & B. C. De Wet, eds. Plants of southern Africa: names and distribution. Mem. Bot. Surv. S. Africa no. 62. 1993 (Pl SAfr)
  • Boggan, J. et al. Checklist of the plants of the Guianas, ed. 2. 1997 (L Guianas ed2)
  • Botanical Society of the British Isles BSBI taxon database (on-line resource). (BSBI)
  • Brako, L. & J. L. Zarucchi Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45. 1993 (L Peru)
  • Cabrera, A. L. & E. M. Zardini Manual de la flora de los alrededores de Buenos Aires. 1978 (Man BuenAir)
  • Egorova, T. V. 2000. Cyperus eragrostis Lam. (Cyperaceae): novyi vid dlya flory Kavkaza (Cyperus eragrostis Lam. (Cyperaceae): species pro flora Caucasi nova) Novosti Sist. Vyssh. Rast. 32:7-11.
  • Erhardt, W. et al. Der große Zander: Enzyklopädie der Pflanzennamen. 2008 (Zander Ency)
  • Euro+Med Editorial Committee Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). (EuroMed Plantbase)
  • FNA Editorial Committee Flora of North America. 1993- (F NAmer)
  • Foreman, D. B. & N. G. Walsh Flora of Victoria. 1993- (F Victoria)
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