Carex amphibola

Carex amphibola, known as gray sedge,[2] is a species of flowering plant in the family Cyperaceae.[1] It was first formally named in 1855.[3] Carex amphibola is native to the eastern United States and Canada.[1]

Carex amphibola
Closeup of the perigynia
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Section: Carex sect. Griseae
Species:
C. amphibola
Binomial name
Carex amphibola

Carex amphibola is commonly confused with Carex grisea, which has somewhat greener perigynia with more rounded tips, versus the gray-green coloring and angular tips of C. amphibola perigynia. The perigynia of C. amphibola are somewhat more clustered and spreading at maturity, while those of C. grisea are strongly ascending.[2]

Carex amphibola grows in mesic decidous forests, often in loamy areas near streams.[4]

References

  1. "Carex amphibola Steud". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 9 August 2020.
  2. Wilhelm, Gerould; Rericha, Laura (2017). Flora of the Chicago Region: A Floristic and Ecological Synthesis. Indiana Academy of Sciences.
  3. "Carex amphibola Steud". ipni.org. International Plant Names Index. Retrieved 9 August 2020.
  4. Naczi, Robert F. C.; Bryson, Charles T. (2002). "Carex griseae". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 23. New York and Oxford. Retrieved 9 August 2020 via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.


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