Sphenopholis intermedia

Taxonavigation

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

Familia: Poaceae
Subfamilia: Pooideae
Tribus: Poeae
Subtribus: Aveninae
Genus: Sphenopholis
Species: Sphenopholis intermedia

Name

Sphenopholis intermedia (Rydb.) Rydb., Bull. Torrey Bot. Club 36: 533 (1909)

Synonyms

Homotypic
- Eatonia intermedia Rydb. in Bull. Torrey Bot. Club 32: 602 (1905)
- Graphephorum rydbergii D.L.Fu in Amer. J. Agric. Forest. 12: 250 (2024)
Heterotypic
- Aira controversa Steud. in Syn. Pl. Glumac. 1: 224 (1854), tentatively listed as a synonym.
- Eatonia longiflora (Vasey ex L.H.Dewey) Beal in Grass. N. Amer. 2: 494 (1896)
- Eatonia pensylvanica var. longiflora Vasey ex L.H.Dewey in Contr. U.S. Natl. Herb. 2: 544 (1894)
- Eatonia pensylvanica var. major (Torr.) A.Gray in Manual, ed. 2: 558 (1856)
- Koeleria pensylvanica var. major (Torr.) Torr. in Fl. New York 2: 469 (1843)
- Koeleria truncata var. major Torr. in Fl. N. Middle United States 1: 117 (1823)
- Reboulea × pallens var. longiflora (Vasey ex L.H.Dewey) Farw. in Rep. (Annual) Michigan Acad. Sci. 17: 182 (1916)
- Reboulea × pallens var. major (Torr.) Farw. in Rep. (Annual) Michigan Acad. Sci. 17: 182 (1916)
- Reboulea pensylvanica var. major (Torr.) A.Gray in Manual: 591 (1848)
- Sphenopholis intermedia var. macranthera B.Boivin in Provancheria 12: 55 (1981)
- Sphenopholis intermedia var. pilosa Dore in Naturaliste Canad. 103: 564 (1976)
- Sphenopholis longiflora (Vasey ex L.H.Dewey) Hitchc. in J. Washington Acad. Sci. 23: 453 (1933)
- Sphenopholis obtusata var. major (Torr.) Erdman in Iowa State J. Sci. 39: 310 (1968)
- Sphenopholis × pallens var. longiflora (Vasey ex L.H.Dewey) Scribn. in Rhodora 8: 145 (1906)
- Sphenopholis × pallens var. major (Torr.) B.L.Rob. in Rhodora 10: 65 (1908)
- Sphenopholis × pallens subsp. major (Torr.) Scribn. in Rhodora 8: 145 (1906)
- Vilfa alba Buckley in Proc. Acad. Nat. Sci. Philadelphia 14: 89 (1862), nom. illeg.

Distribution

Native distribution areas:

Continental: Northern America
- Regional: USA
  - Alabama, Alaska, Arizona, Arkansas, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
- Regional: Canada
  - Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Northwest Territories, Nova Scotia, Prince Edward I., Québec, Saskatchewan, Yukon

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2^nd Edition

References

Primary references

Rydb., (1909) Bulletin of the Torrey Botanical Club 36: 533

Additional references

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.

Links

Govaerts, R. et al. 2025. Sphenopholis intermedia in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2025 November 19. Reference page.
Tropicos.org 2025. Sphenopholis intermedia. Missouri Botanical Garden. Published online. Accessed: 19 November 2025. Reference page.
International Plant Names Index. 2025. Sphenopholis intermedia. Published online. Accessed: November 19 2025. Reference page.

Vernacular names

English: slender wedgescale