Taxon: Cyperus involucratus Rottb.

Common names:

• flat sedge   (Source: Weed CIBA ) – English
  
• umbrella sedge   (Source: Pl Book ) – English
  
• umbrella-plant   (Source: Websters Dict [as C. alternifolius]) – English
  
• cipero-de-jardim   (Source: A. Molina, p.c.) – Portuguese
  
• parasollsäv   (Source: Vara kulturvaxt namn ) – Swedish
  

Economic importance:

• Environmental: ornamental   (fide Hortus 3, as C. flabelliformis; Eur Gard F)
  
• Environmental: pollution control   (fide Jap J Crop Sci 66:325-326. 1997)
  
• Materials: fiber   (fide Ann Bot Fenn 27:64. 1990, as C. alternifolius subsp. flabelliformis)
  
• Medicines: folklore   (fide Kew Bull 56:282. 2001, as C. alternifolius subsp. flabelliformis)
  
• Social: religious/secular   (fide Kew Bull 56:282. 2001, as C. alternifolius subsp. flabelliformis)
  
• Weed   (fide Weed CIBA)
  

Distributional range:

• AFRICA
  Northeast Tropical Africa: Eritrea; Ethiopia; Somalia; Sudan
  East Tropical Africa: Kenya; Tanzania; Uganda
  West-Central Tropical Africa: Burundi; Rwanda; Zaire
  South Tropical Africa: Angola; Malawi; Mozambique; Zambia; Zimbabwe
  Southern Africa: South Africa - KwaZulu-Natal
  Western Indian Ocean: Madagascar; Mauritius; Reunion
• ASIA-TEMPERATE
  Arabian Peninsula: Saudi Arabia; Yemen

• AFRICA
  Macaronesia: Cape Verde; Portugal - Azores; Spain - Canary Islands
  Northern Africa: Egypt; Morocco
  West Tropical Africa: Benin
• ASIA-TEMPERATE
  China: China [s.]
  Eastern Asia: Taiwan
• ASIA-TROPICAL
  Indian Subcontinent: Pakistan; Sri Lanka
  Indo-China: Thailand
  Malesia: Indonesia; Philippines
• AUSTRALASIA
  New Zealand: New Zealand
• NORTHERN AMERICA
  Southeastern U.S.A.: United States - Florida, Louisiana
  South-Central U.S.A.: United States - Texas
  Southwestern U.S.A.: United States - California
  Northern Mexico: Mexico - Baja Norte, Chihuahua, Nuevo Leon, Sinaloa, Sonora, Tamaulipas
  Southern Mexico: Mexico - Chiapas, Colima, Federal District, Jalisco, Morelos, Oaxaca, Tabasco, Veracruz, Yucatan
• PACIFIC
  North-Central Pacific: United States - Hawaii
  South-Central Pacific: French Polynesia - Society Islands
  Southwestern Pacific: Fiji
• SOUTHERN AMERICA
  Caribbean: Jamaica; Puerto Rico
  Mesoamerica: Costa Rica

• also cultivated

References:

• Arnold, T. H. & B. C. De Wet, eds. 1993. Plants of southern Africa: names and distribution. Mem. Bot. Surv. S. Africa no. 62.
• Baijnath, H. 1975. A study of Cyperus alternifolius L., sens. lat. (Cyperaceae). Kew Bull. 30:521–526.
• CIBA-GEIGY, Basel, Switzerland. Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988)
• Davidse, G. et al., eds. 1994. Flora mesoamericana.
• FNA Editorial Committee. 1993–. Flora of North America.
• Gordon-Gray, K. D. 1995. Cyperaceae in Natal. [= C. alternifolius subsp. flabelliformis Kuk.].
• Govaerts, R. & D. A. Simpson. 2007. World checklist of Cyperaceae, sedges. [= C. alternifolius subsp. flabelliformis Kuk.].
• Haines, R. W. & K. A. Lye. 1983. Sedges and rushes of East Africa.
• Jessop, J. P. & H. R. Toelken, eds. 1986. Flora of South Australia, ed. 4.
• Kukkonen, I. 1990. On the nomenclatural problems of Cyperus alternifolius. Ann. Bot. Fenn. 27:59–66. [= C. alternifolius subsp. flabelliformis Kuk.].
• Miyazaki, A. et al. 1997. on the photosynthetic production and water cleaning ability of Cyperus alternifolius L. grown by the floating culture system. Jap. J. Crop Sci. 66:325–326.
• Molina G., A. M. 2011. Review of Cyperaceae data for World Economic Plants, ed. 2. pers. comm. via e–mail on 31 Mar.
• Stanley, T. D. & E. M. Ross. 1983–1989. Flora of south-eastern Queensland.
• Thulin, M., ed. 1993–. Flora of Somalia. [= C. alternifolius subsp. flabelliformis Kuk.].
• Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Syst. Bot. Monogr. 43:20.
• Tutin, T. G. et al., eds. 1964–1980. Flora europaea. [mentions].
• Walters, S. M. et al., eds. 1986–. European garden flora.

More:

Search AGRICOLA article citation database for citations referencing Cyperus involucratus.

Search NCBI's Entrez search engine for PubMed citations referencing Cyperus involucratus.

Search Biodiversity Heritage Library for historical publications referencing Cyperus involucratus.

Synonyms:

• (=) Cyperus alternifolius subsp. flabelliformis Kük.
  (previously associated with 1 accession)
• (=) Cyperus flabelliformis Rottb.
  

Check other web resources for Cyperus involucratus Rottb.:

• Flora Europaea: Database of European Plants (ESFEDS)
• Flora of North America: Collaborative Floristic Effort of North American Botanists
• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• SIBIS: South African National Biodiversity Institute's (SANBI) Integrated Biodiversity System
• On-line Flora of Zimbabwe
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• Mansfeld: Mansfeld's World Database of Agricultural and Horticultural Crops
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Images:

• GRIN Images of germplasm accessions.

More:

• Check PlantSystematics.org for additional images
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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