Taxon: Paspalum distichum L.

 
Genus: Paspalum
Family: Poaceae (alt.Gramineae)
  Subfamily: Panicoideae
      Tribe: Paniceae
Nomen number: 26845
Place of publication: Syst. nat. ed. 10, 2:855. 1759
Comment: controversy over typification resolved in Taxon 32:281. 1983
Name Verified on: 11-May-1992 by ARS Systematic Botanists. Last Changed: 06-Dec-2007
Species priority site is: Plant Genetic Resources Conservation Unit, Griffin, GA (S9)
Accessions: 26 in National Plant Germplasm System

Common names:

  • couch paspalum  (Source: Weed CIBA) - English
  • eternity grass  (Source: Food Feed Crops US) - English
  • ginger grass  (Source: Pl Res SEAs) - English
  • joint grass  (Source: Websters Dict) - English
  • knotgrass  (Source: World Econ Pl) - English
  • Mercer grass  (Source: F NZeal) - English
  • seaside millet  (Source: Websters Dict) - English
  • Thompson grass  (Source: F NAmer) - English
  • water couch  (Source: Weed CIBA) - English
  • water-finger grass  (Source: BSBI) - English
  • moddeid  (Source: F Egypt) - Arabic
  • kishū-suzume-no-hie  (Source: Grass Japan) - Japanese Rōmaji
  • grama-de-Joanópolis  (Source: Dict Rehm) - Portuguese
  • capim-arame  (Source: pers. comm.) - Portuguese (Brazil)
  • grama-braba  (Source: pers. comm.) - Portuguese (Brazil)
  • grama-da-praia  (Source: pers. comm.) - Portuguese (Brazil)
  • grama-doce  (Source: pers. comm.) - Portuguese (Brazil)
  • grama-rasteira-da-praia  (Source: pers. comm.) - Portuguese (Brazil)
  • grama colorada  (Source: Dict Rehm) - Spanish
  • gramilla blanca  (Source: Dict Rehm) - Spanish
  • shuang sui que bai  (Source: F ChinaEng) - Transcribed Chinese

Economic Importance:

  • Harmful organism host: crop diseases (mostly of rice fide WorldWeeds 568. 1997)
  • Harmful organism host: crop pests (mostly of rice fide WorldWeeds 568. 1997)
  • Environmental: erosion control (fide Grass SAfr; Pl Res SEAs 4:180. 1992; Invasive Pl Spec)
  • Animal food: fodder (fide Pl Res SEAs 4:180. 1992)
  • Animal food: forage (fide Pl Res SEAs 4:180. 1992)
  • Vertebrate poisons: mammals (fide Econ Pl Aust)
  • Weed: potential seed contaminant (fide Atlas WWeed; Invasive Pl Spec)

Distributional Range:

    Other:

    . exact native range obscure, probable origin neotropics

    Native:

  • Northern America

    • North-Central U.S.A.: United States - Kansas, - Missouri, - Oklahoma
    • Northeastern U.S.A.: United States - New Jersey
    • Northern Mexico: Mexico - Chihuahua, - Coahuila, - Durango, - Nuevo Leon, - San Luis Potosi, - Sonora, - Zacatecas, - Baja Norte, - Baja Sur
    • Northwestern U.S.A.: United States - Idaho, - Oregon, - Washington
    • South-Central U.S.A.: United States - New Mexico, - Texas
    • Southeastern U.S.A.: United States - Alabama, - Arkansas, - Florida, - Georgia, - Kentucky, - Louisiana, - Mississippi, - North Carolina, - South Carolina, - Tennessee, - Virginia
    • Southern Mexico: Mexico - Aguascalientes, - Chiapas, - Guanajuato, - Hidalgo, - Jalisco, - Mexico, - Michoacan, - Morelos, - Oaxaca, - Puebla, - Queretaro, - Tabasco, - Veracruz, - Federal District
    • Southwestern U.S.A.: United States - Arizona, - California, - Nevada, - Utah
  • Southern America

    • Brazil: Brazil - Bahia, - Mato Grosso do Sul, - Minas Gerais, - Para, - Parana, - Pernambuco, - Rio Grande do Sul, - Santa Catarina, - Sao Paulo, - Sergipe
    • Caribbean: Cuba; Dominica; Grenada; Guadeloupe; Hispaniola; Jamaica; Martinique; Puerto Rico; St. Lucia; St. Vincent and Grenadines - St. Vincent
    • Mesoamerica: Costa Rica; El Salvador; Guatemala; Honduras; Nicaragua
    • Northern South America: French Guiana; Guyana; Suriname; Venezuela
    • Southern South America: Argentina; Chile; Paraguay; Uruguay
    • Western South America: Bolivia; Colombia; Ecuador; Peru

  • Naturalized:

  • Africa

    • Macaronesia: Portugal - Azores, - Madeira Islands; Spain - Canary Islands
    • Northern Africa: Algeria; Egypt; Libya; Morocco; Tunisia
    • South Tropical Africa: Zimbabwe
    • Southern Africa: Lesotho; Namibia; South Africa - KwaZulu-Natal, - Free State, - Eastern Cape, - Northern Cape, - Western Cape, - Gauteng, - Limpopo, - Mpumalanga, - North West; Swaziland
    • Western Indian Ocean: Mauritius
  • Asia-Temperate

    • Arabian Peninsula: Saudi Arabia
    • Caucasus: Azerbaijan
    • China: China - Anhui, - Fujian, - Guangxi, - Hainan, - Henan, - Hubei, - Hunan, - Jiangsu, - Shandong, - Sichuan, - Yunnan, - Zhejiang
    • Eastern Asia: Japan - Kyushu, - Ryukyu Islands, - Shikoku; Taiwan
    • Western Asia: Cyprus; Egypt - Sinai; Iran; Iraq; Israel; Lebanon; Syria; Turkey
  • Asia-Tropical

    • Indian Subcontinent: Bangladesh; India - Assam, - Bihar, - Himachal Pradesh, - Jammu and Kashmir, - Kerala, - Maharashtra, - Manipur, - Meghalaya, - Nagaland, - Uttar Pradesh, - West Bengal, - Delhi; Nepal; Pakistan; Sri Lanka
    • Indo-China: Laos; Thailand; Vietnam
    • Malesia: Indonesia; Malaysia; Philippines
    • North Indian Ocean: India - Andaman and Nicobar
  • Australasia

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

    • East Europe: Ukraine - Krym
    • Northern Europe: United Kingdom
    • Southeastern Europe: Albania; Bulgaria; Croatia; Greece; Italy; Slovenia
    • Southwestern Europe: France; Portugal; Spain
  • Pacific

    • Northwestern Pacific: Micronesia

References:

  • Webster's third new international dictionary. 1961 (Websters Dict)
  • Adams, C. Flowering plants of Jamaica. 1972 (F Jam)
  • Allan, H. H. B. et al. Flora of New Zealand. 1961- (F NZeal)
  • Botanical Society of the British Isles BSBI taxon database (on-line resource). (BSBI)
  • Boulos, L. Flora of Egypt. 1999- (F Egypt)
  • Brako, L. & J. L. Zarucchi Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45. 1993 (L Peru)
  • Brummitt, R. K. 1983. Report of the Committee for Spermatophyta: 25 (Taxon) 32:281.
  • Catasús Guerra, L. J. 2002. Las gramíneas (Poaceae) de Cuba, II Cavanillesia Altera 3:1-163.
  • CIBA-GEIGY, Basel, Switzerland Documenta CIBA-GEIGY (Grass weeds 1. 1980, 2. 1981; Monocot weeds 3. 1982; Dicot weeds 1. 1988) (Weed CIBA)
  • Dassanayake, M. D. & F. R. Fosberg, eds. A revised handbook to the flora of Ceylon. 1980- (F Ceylon)
  • Davidse, G. et al., eds. Flora mesoamericana. 1994 (F Mesoamer)
  • Davis, P. H., ed. Flora of Turkey and the east Aegean islands. 1965-1988 (F Turk)
  • Euro+Med Editorial Committee Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). (EuroMed Plantbase)
  • Exell, A. W. et al., eds. Flora zambesiaca. 1960- (F Zamb)
  • FNA Editorial Committee Flora of North America. 1993- (F NAmer)
  • Food and Agriculture Organization of the United Nations (FAO) 2010. Ecocrop (on-line resource). (Ecocrop)
  • Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource). (L Brasil Online)
  • George, A. S., ed. Flora of Australia. 1980- (F Aust)
  • Germishuizen, G. & N. L. Meyer, eds. Plants of southern Africa: an annotated checklist. Strelitzia 14. 2003 (Pl SAfr ed2)
  • Gibbs-Russell, G. E. et al. Grasses of southern Africa. Mem. Bot. Surv. S. Africa vol. 58. 1990 (Grass SAfr)
  • Groth, D. 2005. pers. comm. (pers. comm.)
  • Herrera-Arrieta, Y. Las Gramíneus de Durango. 2001 (Grass Durango)
  • Holm, L. et al. A geographical atlas of world weeds. 1979 (Atlas WWeed)
  • Holm, L. et al. World weeds: natural histories and distribution. 1997 (WorldWeeds) 568.
  • Howard, R. Flora of the lesser Antilles. 1974-1989 (F LAnt)
  • Hubbard, C. E. & R. E. Vaughan The grasses of Mauritius and Rodriguez. 1940 (Grass Mauritius)
  • Koning, R. de & M. S. M. Sosef 1985. The Malesian species of Paspalum L. (Gramineae) (Blumea) 30:295-297.
  • Koyama, T. Grasses of Japan and its neighboring regions. 1987 (Grass Japan)
  • Lazarides, M. & B. Hince CSIRO Handbook of Economic Plants of Australia. 1993 (Econ Pl Aust)
  • León (J. S. Sauget) & Alain (E. E. Liogier) Flora de Cuba. 1946-1962; suppl. 1969 (F CubaLeon)
  • Liogier, H. A. & L. F. Martorell Flora of Puerto Rico and adjacent islands: a systematic synopsis, ed. 2. 2000 (F PR ed2)
  • Markle, G. M. et al., eds. Food and feed crops of the United States, ed. 2. 1998 (Food Feed Crops US)
  • McVaugh, R. Flora Novo-Galiciana. 1983- (F NGalicia)
  • Migahid, A. M. Flora of Saudi Arabia, ed. 3. 1988-1990 (F Saudi ed3)
  • Nasir, E. & S. I. Ali, eds. Flora of [West] Pakistan. 1970- (F Pak)
  • Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource). (Pl Names)
  • Rehm, S. Multilingual dictionary of agronomic plants. 1994 (Dict Rehm)
  • Renvoize, S. A. & W. D. Clayton 1980. (528) Proposal to reject the name Paspalum distichum L. Syst. Nat. ed. 10,2:855 (1759) (Taxon) 29:339-340.
  • Sell, P. & G. Murrell Flora of Great Britain and Ireland. 1996- (F GB Ire)
  • Sreekumar, P. V. & V. J. Nair Flora of Kerala - grasses. 1991 (Grass Kerala)
  • Standley, P. C. & J. A. Steyermark Flora of Guatemala. 1946-1976 (F Guat)
  • Stevens, W. D. et al., eds. Flora de Nicaragua. Monogr. Syst. Bot. Missouri Bot. Gard. 85(1-3). 2001 (F Nicaragua)
  • 't Mannetje, L. & R. M. Jones, eds. 1992. Forages (Pl Res SEAs) 4:180.
  • Tovar, Ó. 1993. Las gramíneas (Poaceae) del Perú (Ruizia) 13:360-361.
  • Virginia Botanical Associates Digital atlas of the Virginia flora (on-line resource). (Atlas Virginia)
  • Weber, E. Invasive plant species of the world: a reference guide to environmental weeds. 2003 (Invasive Pl Spec)
  • Wu Zheng-yi & P. H. Raven et al., eds. Flora of China (English edition). 1994- (F ChinaEng)
  • Zuloaga, F. O. et al. Catalogo de la familia Poaceae en la Republica Argentina. Monogr. Syst. Bot. Missouri Bot. Gard. 47. 1994 (L Grass Argent)
  • Zuloaga, F. O. et al. 2003. Catalogue of New World grasses (Poaceae): III. Subfamilies Panicoideae, Aristidoideae, Arundinoideae, and Danthonioideae Contr. U.S. Natl. Herb. 46:463.

Synonyms:

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