Oryzopsis asperifolia

Taxonavigation

Taxonavigation: Poales
Classification System: APG IV Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Cladus: Angiosperms Cladus: Monocots Cladus: Commelinids Ordo: Poales

Familia: Poaceae
Subfamilia: Pooideae
Tribus: Stipeae
Genus: Oryzopsis
Species: Oryzopsis asperifolia

Oryzopsis asperifolia Michx., Fl. Bor.-Amer. 1: 51 (1803)

Homotypic
- Urachne asperifolia (Michx.) Trin. in Gram. Unifl. Sesquifl.: 174 (1824)
Heterotypic
- Dilepyrum angustifolium Raf. in Med. Fl. 2: 249 (1830), nom. nud.
- Oryzopsis aspera Muhl. in Cat. Pl. Amer. Sept.: 11 (1813), orth. var.
- Oryzopsis leucosperma Walp. in Ann. Bot. Syst. 3: 728 (1853), pro syn.
- Oryzopsis mutica Link in Enum. Hort. Berol. Alt. 1: 41 (1821)
- Urachne leucosperma Link in Hort. Berol. 1: 94 (1827)
- Urachne mutica (Link) Steud. in Nomencl. Bot., ed. 2, 2: 731 (1841)

Native distribution areas:

Continental: Cosmopolitan
- Regionalː Subarctic America to N. & W. Central U.S.A.
  - Alberta, British Columbia, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Ohio, Ontario, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Yukon

Michaux, A. 1803. Flora Boreali-Americana: sistens caracteres plantarum quas in America septentrionali collegit et detexit Andreas Michaux. Vol. 1. Parisiis et Argentorati: fratres Levrault. BHL Reference page. 1:51, t. 9.

Clayton, W.D., Harman, K.T. & Williamson, H. 2006. World Grass Species – Synonymy database. The Board of Trustees of the Royal Botanic Gardens, Kew. Available for download as an Access file from Synonymy database. Reference page.
Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

Govaerts, R. et al. 2026. Oryzopsis asperifolia in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 January 25. Reference page.
International Plant Names Index. 2026. Oryzopsis asperifolia. Published online. Accessed: January 25 2026. Reference page.
USDA, ARS, Germplasm Resources Information Network. Oryzopsis asperifolia in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06. Reference page.