Carex rossii

Carex rossii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Species: C. rossii
Binomial name
Carex rossii
Boott[Note 1]
Synonyms [2][3]

Carex rossii, commonly known as Ross's sedge, is a hardy, monoecious species of sedge that is often a pioneer species in areas with little or no established vegetation, or in places where disturbance has occurred. It flowers in May and June.[11][12]

Description

Carex rossii produces a dense clump, or solid mat of slender stems up to about 40 centimetres (16 in) from a shallow network of rhizomes. The pale to dark green leaves are usually longer than the stems. The inflorescences contain one or more staminate flower spikes above more rounded pistillate spikes. The fruit is three-sided, and covered in a greenish or brownish perigynium.[11][12]

Distribution

Carex rossii is native to, and sometimes abundant in, Alaska and subarctic Canada (Nunavut, Northwest Territories, and Yukon Territory); western Canada (Alberta, British Columbia, Manitoba, and Saskatchewan); and the contiguous U.S. (Arizona, California, Colorado, the Dakotas, Idaho, Minnesota, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming.) It is found only sporadically in Ontario, Michigan, and Nebraska.[3][11][13]

Habitat

Carex rossii grows in many habitat types, including wet and dry areas in forest, sagebrush, prairie, and alpine meadows.[11][12]

Notes

  1. ↑ C. rossii was first described in Flora Boreali-Americana; or, the botany of the northern parts of British America ... (Hooker), 2(11): 222 (-223). 1839.[1]
  2. ↑ C. brevipes was published in Index Kewensis Plantarum Phanerogamarum ... , 1(1): 428. 1893. Oxford.[4]
  3. ↑ C. deflexa var. farwellii was published in An Illustrated Flora of the Northern United States (Britton & Brown), 1: 334. 1896.[5]
  4. 1 2 C. deflexa var. media, and C. d. var. rossii were both published in Memoirs of the Torrey Botanical Club, 1: 43. 1889.[6][7]
  5. ↑ C. diversistylis was published in Madroño; Journal of the California Botanical Society, 11: 277. 1952. Berkeley, California.[8]
  6. ↑ C. farwellii was published in Bulletin of the Torrey Botanical Club, 37: 244. 1910. New York.[9]
  7. ↑ C. novae-angliae var. rossii was published in Botanical Gazette; Paper of Botanical Notes, 10: 207. 1885 Crawfordsville, Indiana, Chicago, Illinois.[10]

References

  1. ↑ "Plant Name Details for Carex rossii". IPNI. Retrieved August 23, 2010. Type Information: Locality: "Hab. N. W. Coast. Douglas. Rocky Mountains. Drummond" (sic)
  2. ↑ "Name - Carex rossii Boott synonyms". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved August 23, 2010.
  3. 1 2 "Profile for Carex rossii (Ross' sedge)". PLANTS Database. USDA, NRCS. Retrieved August 2, 2010.
  4. ↑ "Plant Name Details for Carex brevipes". IPNI. Retrieved August 23, 2010.
  5. ↑ "Plant Name Details for Carex deflexa var. farwellii". IPNI. Retrieved August 23, 2010.
  6. ↑ "Plant Name Details for Carex deflexa var. media". IPNI. Retrieved August 23, 2010.
  7. ↑ "Plant Name Details for Carex deflexa var. rossii". IPNI. Retrieved August 23, 2010.
  8. ↑ "Plant Name Details for Carex diversistylis". IPNI. Retrieved August 23, 2010. Notes: U.S.A. (Oregon)
  9. ↑ "Plant Name Details for Carex farwellii". IPNI. Retrieved August 23, 2010.
  10. ↑ "Plant Name Details for Carex novae-angliae var. rossii". IPNI. Retrieved August 23, 2010.
  11. 1 2 3 4 Anderson, Michelle D. (2008). "Carex rossii". Fire Effects Information System (online). Rocky Mountain Research Station, Fire Sciences Laboratory (Producer): U.S.D.A; Forest Service. Retrieved August 23, 2010.
  12. 1 2 3 Raymond Cranfill (1993). "Jepson Manual treatment for CAREX rossii". Jepson Manual Online. University & Jepson Herbaria; Regents of the University of California. Retrieved August 24, 2010.
  13. ↑ GRIN (July 18, 2008). "Carex rossii information from NPGS/GRIN". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Retrieved August 23, 2010.

External links

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