Carex amphibola

Carex amphibola
Closeup of the perigynia
Scientific classification Edit this 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
Synonyms[1]
  • Carex grisea var. amphibola (Steud.) Kük.
  • Carex grisea var. minor Olney
  • Carex laxiflora Elliott, nom. illeg.

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 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 deciduous forests, often in loamy areas near streams.[4]

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