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Taxon: Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs

Genus: Megathyrsus
Family: Poaceae (alt. Gramineae) subfamily: Panicoideae tribe: Paniceae
Nomen number: 447623
Place of publication: Austrobaileya 6:572. 2003
Name verified on: 05-Jan-2005 by ARS Systematic Botanists. Last updated: 03-Feb-2005
No species priority site assigned.
Accessions: 281 in National Plant Germplasm System.
  • all available ) NPGS accessions. or .
  • all available ) NPGS accessions by country.
  • Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

See also subordinate taxa:

Common names:

  • green panic grass   (Source: Pl Res SEAs 4:172. [as P. maximum]) – English
  • Guinea grass   (Source: World Econ Pl ) – English
  • herbe de Guinée   (Source: Dict Rehm [as P. maximum]) – French
  • Guineagras   (Source: Dict Rehm [as P. maximum]) – German
  • erba della Guinea   (Source: Mult Glossary Crops ) – Italian
  • capim-colonião   (Source: Dict Rehm [as P. maximum]) – Portuguese (Brazil)
  • mijo de Guinea   (Source: Dict Rehm [as P. maximum]) – Spanish
  • pasto Guinea   (Source: Dict Rehm [as P. maximum]) – Spanish
  • guineagräs   (Source: Vara kulturvaxt namn ) – Swedish

Economic importance:

  • Animal food: fodder   (fide Blumea 41:197. 1996, as P. maximum)
  • Animal food: forage   (the most important cultivated forage grass in tropical America fide Grass US, as P. maximum)
  • Vertebrate poisons: mammals   (fide Kellerman et al., as Panicum maximum)
  • Weed: potential seed contaminant   (fide Weed CIBA, as P. maximum; Invasive Pl Spec, as P. maximum)

Distributional range:

    Northeast Tropical Africa: Eritrea; Ethiopia; Somalia; Sudan
    East Tropical Africa: Kenya; Tanzania; Uganda
    West-Central Tropical Africa: Cameroon; Zaire
    West Tropical Africa: Benin; Cote D'Ivoire; Ghana; Liberia; Nigeria; Senegal; Sierra Leone
    South Tropical Africa: Angola; Malawi; Mozambique; Zambia; Zimbabwe
    Southern Africa: Botswana; Lesotho; Namibia; South Africa; Swaziland
    Western Indian Ocean: Madagascar; Mauritius
    Arabian Peninsula: Yemen

      Naturalized: (links to other web resources are provided for some distributions)
    Australia: Australia - New South Wales, Northern Territory, Queensland, South Australia [s.e.], Western Australia
    New Zealand: New Zealand
    Southeastern U.S.A.: United States - Florida
    North-Central Pacific: United States - Hawaii
    Caribbean: Bahamas; Cuba; Guadeloupe; Hispaniola; Jamaica; Puerto Rico
    Mesoamerica: Costa Rica; El Salvador; Guatemala; Honduras; Nicaragua; Panama
    Northern South America: French Guiana; Guyana
    Brazil: Brazil - Amazonas, Goias, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Sao Paulo
    Western South America: Bolivia; Colombia; Ecuador - Galapagos Islands; Peru
    Southern South America: Argentina; Paraguay

    China: China - Guangdong
    Eastern Asia: Japan; Taiwan




Check other web resources for Megathyrsus maximus (Jacq.) B. K. Simon & S. W. L. Jacobs:


  • Check for additional images
  • Google 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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Cite as:
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN) [Online Database].
National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: (27 November 2015)

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