Piptatheropsis canadensis

Piptatheropsis canadensis

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: Piptatheropsis
Species: Piptatheropsis canadensis

Name

Piptatheropsis canadensis (Poir.) Romasch., P.M.Peterson & Soreng, Taxon 60: 1713 (2011)

Synonyms

• Homotypic
  • Oryzopsis canadensis (Poir.) Torr. ex A.Gray in Manual: 583 (1843)
  • Oryzopsis juncea Britton, Sterns & Poggenb. in Prelim. Cat.: 67 (1888), nom. superfl.
  • Piptatherum canadense (Poir.) Dorn in Vasc. Pl. Wyoming, ed. 3: 377 (2001)
  • Stipa canadensis Poir. in J.B.A.M.de Lamarck, Encycl. 7: 452 (1806)
  • Urachne canadensis (Poir.) Torr. in A.Gray, N. Amer. Gram. 2: 114 (1835)
• Heterotypic
  • Oryzopsis macounii (Scribn.) Beal in Grass. N. Amer. 2: 229 (1896)
  • Stipa juncea Michx. in Fl. Bor.-Amer. 1: 54 (1803), nom. superfl.
  • Stipa macounii Scribn. in J.Macoun, Cat. Canad. Pl. 2(5): 390 (1890)

Distribution

Native distribution areas:
Continental: Northern America Regionalː Canada Alberta, Labrador, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan Regionalː Northern USA Maine, Michigan, Minnesota, New Hampshire, New York, West Virginia, Wisconsin References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Romaschenko, K., Peterson, P.M. & Soreng, R.J. 2011. Phylogenetics of Piptatherum s.l. (Poaceae: Stipeae): Evidence for a new genus, Piptatheropsis, and resurrection of Patis. Taxon 60(6): 1703–1716. DOI: 10.1002/tax.606015 PDF Reference page.  60: 1713

Additional references

• Werier, D. (2017). Catalogue of the Vascular plants of New York state. Memoirs of the Torrey Botanical Club 27: 1-542. New York Botanical Garden.
• Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

Links

• Govaerts, R. et al. 2026. Piptatheropsis canadensis in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 January 26. Reference page. 
• International Plant Names Index. 2026. Piptatheropsis canadensis. Published online. Accessed: January 26 2026. Reference page.

Vernacular names

• English: Canada ricegrass

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