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Taxon: Nassella tenuissima (Trin.) Barkworth

Genus: Nassella
Family: Poaceae (alt. Gramineae) subfamily: Pooideae tribe: Stipeae
Nomen number: 402094
Place of publication: Taxon 39:612. 1990
Name verified on: 15-Apr-2004 by ARS Systematic Botanists. Last updated: 09-May-2011
Species priority site is: Western Regional PI Station (W6).
Accessions: 2 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.

Common names:

  • Argentine needlegrass   (Source: BSBI ) – English
  • fine-stem needlegrass   (Source: Grass Tex [as Stipa tenuissima]) – English
  • white tussock   (Source: Weeds SAfr [as Stipa tenuissima]) – English
  • witpolgras   (Source: Weeds SAfr 2001 ) – Afrikaans
  • svansfjädergräs   (Source: Vara kulturvaxt namn ) – Swedish

Economic importance:


Distributional range:

      Native: (links to other web resources are provided for some distributions)
  • NORTHERN AMERICA (Check conservation status in U.S. & Canada in NatureServe Explorer database)
    South-Central U.S.A.: United States - New Mexico, Texas
    Northern Mexico: Mexico - Coahuila, Durango [e.], Nuevo Leon, San Luis Potosi, Tamaulipas, Zacatecas
    Southern Mexico: Mexico - Aguascalientes, Guanajuato, Hidalgo, Mexico, Oaxaca, Puebla, Tlaxcala, Veracruz
    Southern South America: Argentina - Buenos Aires, Catamarca, Cordoba, Entre Rios, La Pampa, La Rioja, Mendoza, Rio Negro, San Juan, San Luis, Santa Cruz, Santa Fe, Santiago del Estero, Tucuman; Chile

    Southern Africa: South Africa
    Australia: Australia
    New Zealand: New Zealand




Check other web resources for Nassella tenuissima (Trin.) Barkworth:


  • 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: (24 November 2015)

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