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Taxon: Oryza longistaminata A. Chev. & Roehr.

Genus: Oryza section: Oryza series: Oryza
Family: Poaceae (alt. Gramineae) subfamily: Ehrhartoideae tribe: Oryzeae
Nomen number: 26067
Place of publication: Compt. Rend. Hebd. Séances Acad. Sci. 159:561. 1914
Name verified on: 31-Mar-2009 by ARS Systematic Botanists. Last updated: 31-Mar-2009
Species priority site is: National Small Grains Collection (NSGC).


A declared noxious weed by USDA-APHIS.
A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:
AL*, FL*, MA*, NC*.
ªAquatic. *Terrestrial. °In seed.
noxious weed information from Invaders Database System for northwestern U.S.

Common names:


Economic importance:

  • Animal food: forage   (when juvenile fide Grass Camer)
  • Gene sources: disease resistance for rice   (fide Breed Sci 60:521. 2010)
  • Gene sources: primary genetic relative of rice   (based on genome (AA carrier) constitution & crossability with rice fide Proc Natl Acad Sci 96:14404. 1999)
  • Weed   (forms weedy hybrids with cultivated rice fide IRRI Pap. 138:11. 1989; Atlas WWeed)

Distributional range:

    Northeast Tropical Africa: Sudan
    East Tropical Africa: Kenya; Tanzania; Uganda
    West-Central Tropical Africa: Cameroon; Gabon; Zaire
    West Tropical Africa: Cote D'Ivoire; Ghana; Guinea; Liberia; Mali; Nigeria; Senegal; Sierra Leone
    South Tropical Africa: Angola; Malawi; Mozambique; Zambia; Zimbabwe
    Southern Africa: Botswana; Namibia [n.]; South Africa - Transvaal
    Western Indian Ocean: Madagascar


  • PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource).
  • Brondani, C. et al. 2003. Transferability of microsatellite and sequence tagged site markers in Oryza species. Hereditas (Beijing) 138:187–192.
  • Clayton, W. D. 1968. Studies in the Gramineae: XVII. Kew Bull. 21:488.
  • Exell, A. W. et al., eds. 1960–. Flora zambesiaca.
  • Food and Agriculture Organization of the United Nations (FAO). 2010. Ecocrop (on-line resource).
  • Ge, S. et al. 1999. Phylogeny of rice genomes with emphasis on origins of allotetraploid species. Proc. Natl. Acad. Sci. U.S.A. 96:14400–14405.
  • Gibbs-Russell, G. E. et al. 1990. Grasses of southern Africa. Mem. Bot. Surv. S. Africa vol. 58.
  • Hilu, K. W. & L. V. Sharova. 2002. Evolutionary implications of substitution patterns in prolamin genes of Oryza glaberrima (African rice, Poaceae) and related species. Amer. J. Bot. 89:211–219.
  • Jena, K. K. 2010. The species of the genus Oryza and transfer of useful genes from wild species into cultivated rice, O. sativa. Breed. Sci. 60:518–523.
  • Keay, R. W. J. & F. N. Hepper. 1953–1972. Flora of west tropical Africa, ed. 2.
  • Morishima, H. 1984. Wild plants and domestication. P. 6 in: Tsunoda, S. & N. Takahashi, eds., Biology of rice. [= O. perennis Moench].
  • Porcher, M. H. et al. Searchable World Wide Web Multilingual Multiscript Plant Name Database (MMPND) (on-line resource).
  • Seed Regulatory and Testing Division, Agricultural Marketing Service, U.S.D.A. State noxious-weed seed requirements recognized in the administration of the Federal Seed Act (updated annually).
  • Sharma, S. D. 2003. Nomenclatural confusions in genus Oryza. P. 354 in: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza.
  • Sharma, S. D. 2003. Species of genus Oryza and their interrelationships. P. 80 in: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza.
  • Sweeney, M. & S. McCouch. 2007. The complex history of the domestication of rice. Ann. Bot. (Oxford) 100:951–957. [this review summarizes what is known about Oryza glaberrima & O. sativa domestication, it cites this taxon].
  • Tateoka, T. 1963. Taxonomic studies of Oryza. III. Key to the species and their enumeration. Bot. Mag. (Tokyo) 76:169. [= O. barthii A. Chev.].
  • Turrill, W. B. et al., eds. 1952–. Flora of tropical East Africa.
  • Vaughan, D. A. 1989. The genus Oryza L. Current status of taxonomy. Int. Rice Res. Inst. Techn. Pap. 138:10, 16.
  • Vaughan, D. A. 2003. Diversity in the Oryza genus. Curr. Opin. Pl. Biol. 6:140.
  • Vaughan, D. A. 2003. Revised key to species in genus Oryza. P. 348 in: Nanda, J. S. & S. D. Sharma, eds., Monograph on Genus Oryza.
  • Zhu, Q. & S. Ge. 2005. Phylogenetic relationships among A-genome species of the genus Oryza revealed by intron sequences of four nuclear genes. New Phytol. 167:249–265.
  • Zhu, T. et al. 2014. Phylogenetic relationships and genome divergence among the AA-genome species of the genus Oryza as revealed by 53 nuclear genes and 16 intergeneric regions. Molec. Phylogenet. Evol. 70:348–361.
  • Zon, A. P. M. van der. 1992. Graminées du Cameroun.


Check other web resources for Oryza longistaminata A. Chev. & Roehr.:


  • 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.
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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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