Jump to: SynonymsCommon NamesEconomic ImportanceDistributional RangeReferencesOther Web References

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

Genus: Megathyrsus
Family: Poaceae (alt.Gramineae)
Subfamily: Panicoideae
Tribe: Paniceae
Subtribe: Melinidinae
Nomen number: 447623
Place of publication: Austrobaileya 6:572. 2003
Link to protologue:
Name Verified on: 05-Jan-2005 by ARS Systematic Botanists.
Accessions: 442 (281 active, 249 available) in National Plant Germplasm System (Map)

Autonyms (not in current use), synonyms and invalid designations:

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

Common names:

Economic Importance:

  • Animal food: fodder (as P. maximum) forage (the most important cultivated forage grass in tropical America, as P. maximum)
  • Vertebrate poisons:
  • Weed: potential seed contaminant (as P. maximum) potential seed contaminant (as P. maximum)

Distributional Range:


    • NORTHEAST TROPICAL AFRICA: Eritrea, Ethiopia, Somalia, Sudan
    • EAST TROPICAL AFRICA: Kenya, Tanzania, Uganda
    • WEST-CENTRAL TROPICAL AFRICA: Cameroon, Democratic Republic of the Congo
    • WEST TROPICAL AFRICA: Benin, Cote D'Ivoire, Ghana, Liberia, Nigeria, Senegal, Sierra Leone
    • SOUTH TROPICAL AFRICA: Angola, Malawi, Mozambique, Zambia, Zimbabwe
    • SOUTHERN AFRICA: Botswana, Eswatini, Lesotho, Namibia, South Africa
    • WESTERN INDIAN OCEAN: Madagascar, Mauritius



    • CHINA: China [Guangdong Sheng]
    • EASTERN ASIA: Japan, Taiwan


    • AUSTRALIA: Australia [New South Wales, Northern Territory, Queensland, South Australia (s.e.), Western Australia]
    • NEW ZEALAND: New Zealand

    Northern America
    • SOUTHEASTERN U.S.A.: United States [Florida]
    • Mexico

    • NORTH-CENTRAL PACIFIC: United States [Hawaii]

    Southern America
    • CARIBBEAN: Bahamas, Cuba, Guadeloupe, Hispaniola, Jamaica, United States [Puerto Rico]
    • CENTRAL AMERICA: Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
    • NORTHERN SOUTH AMERICA: French Guiana, Guyana
    • BRAZIL: Brazil [Amazonas, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, São Paulo]
    • WESTERN SOUTH AMERICA: Bolivia, Colombia, Ecuador, [Galápagos] Ecuador, [Galápagos] Peru
    • SOUTHERN SOUTH AMERICA: Argentina, Paraguay


  1. Acevedo-Rodríguez, P. & M. T. Strong. Flora of the West Indies (on-line resource).
  2. Barbosa de Sousa, A. C. et al. 2011. Molecular diversity and genetic structure of Guineagrass (Panicum maximum Jacq.), a tropical pasture grass. Trop. Pl. Biol. 4:185-202. Note: = Panicum maximum Jacq.
  3. Forzza, R. C. et al., coord. Lista de espécies da flora do Brasil (on-line resource).
  4. Giraldo-Cañas, D. 2011. Catálogo de la familia Poaceae en Colombia. Darwiniana 49:139-247.
  5. Howell, C. J. & J. W. D. Sawyer. 2006. New Zealand naturalised vascular plant checklist Note: = Panicum maximum Jacq.
  6. Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares. Note: recognizes vars. maximus and pubiglumis
  7. International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
  8. Kabelo, M. & D. Mafokate. 2004. A checklist of Botswana grasses. S. African Bot. Diversity Network Rep. 24:1-16. Note: = Panicum maximum Jacq.
  9. Randall, R. P. 2007. The introduced flora of Australia and its weed status.
  10. Rehm, S. 1994. Multilingual dictionary of agronomic plants Note: = Panicum maximum Jacq.
  11. Tovar, Ó. 1993. Las gramíneas (Poaceae) del Perú. Ruizia 13:322. Note: = Panicum maximum Jacq.
  12. Villaseñor, J. L. & F. J. Espinoza-Garcia. 2004. The alien flowering plants of Mexico. Diversity & Distrib. 10:113-123. Note: = Panicum maximum Jacq.
  13. Wagner, W. L. et al. Flora of the Hawaiian Islands (on-line resource). Note: = Urochloa maxima (Jacq.) R. D. Webster
  14. Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Panicum maximum Jacq.
  15. Wunderlin, R. & B. Hansen. Atlas of Florida vascular plants (on-line resource). Note: = Panicum maximum Jacq.
  16. Catalogue of New World grasses (Poaceae) (on-line resource).
  17. Plants of southern Africa: an online checklist. Note: = Panicum maximum Jacq.

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

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2020. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=447623. Accessed 13 July 2020.