Carex flexuosa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Subgenus: Carex subg. Carex
Section: Carex sect. Hymenochlaenae
Species:
C. flexuosa
Binomial name
Carex flexuosa
Synonyms[1]

Carex debilis var. rudgei L.H.Bailey

Carex flexuosa, commonly called flexuous white-edge sedge,[2] or Rudge's white-edge sedge,[3] is a species of flowering plant in the sedge family, Cyperaceae. It is native to the eastern North America, where it is found in eastern Canada, the northeastern and midwestern United States, and southward in the Appalachian Mountains.[4] Its natural habitat is in upland forests, rock outcrops, and Appalachian balds.[2] It is typically found in areas with acidic soil.[5]

Carex flexuosa is a clumping perennial. It is similar to Carex debilis, of which it is frequently considered a variety, as Carex debilis var. rudgei.[4][5][1][6] Carex flexuosa can be distinguished from C. debilis by its smaller perigynia that are broadest near the middle. It is also similar to Carex allegheniensis, from which Carex flexuosa can be distinguished by its glabrous (hairless) perigynia.[2][7]

References

  1. 1 2 "Carex flexuosa Muhl. ex Willd". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 8 January 2019.
  2. 1 2 3 Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
  3. ↑ Weakley, Alan S. (2018), Flora of the Southern and Mid-Atlantic States, working draft of 20 August 2018, University of North Carolina Herbarium, North Carolina Botanical Garden, University of North Carolina at Chapel Hill
  4. 1 2 USDA, NRCS (n.d.). "Carex debilis var. rudgei". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 6 January 2019.
  5. 1 2 Carex debilis var. rudgei Flora of North America
  6. ↑ Brouillet L, Desmet P, Coursol F, Meades SJ, Favreau M, Anions M, Bélisle P, Gendreau C, Shorthouse D, et al. (2010). "Carex debilis var. rudgei L.H. Bailey". Database of Vascular Plants of Canada (VASCAN). Retrieved 8 January 2019.
  7. ↑ Chester, Edward (2015). Guide to the Vascular Plants of Tennessee.
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