Carex feta, the green-sheathed sedge or greensheath sedge, is a species of flowering plant in the family Cyperaceae, native to southwestern British Columbia in Canada, and Washington, Oregon, and California in the United States.[1][2]

Carex feta
In the Hetch Hetchy valley
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Species:
C. feta
Binomial name
Carex feta
Synonyms[1]
  • Carex feta var. multa L.H.Bailey
  • Carex straminea var. mixta L.H.Bailey

Description

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The leaf blade is between 2.5 and 5 mm long, with a triangular white patch. The open inflorescence is between 30 and 80 mm long, which are white-green to pale gold in color. The fruit is between 3 and 4.2 mm in diameter, green to pale gold in color, and either ovate or wide-ovate. The fruiting time is between the months of May and August. It is similar to Carex fracta, but the spikelets are smaller and more distinct.[3] It is between 50 and 100 centimeters in height. The inflorescence is elongated but with overlapping ovate spikes. The female scales are 2.7 to 3.5 mm long, and either straw-colored or brown. The perigynia is ovate or broadly ovate with a white tipped beak.[4] Its chromosome number is n = 33.[5]

References

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  1. ^ a b "Carex feta L.H.Bailey". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 14 September 2022.
  2. ^ "Carex feta L. H. Bailey". The Calflora Database. Calflora. 2022. Retrieved 14 September 2022.
  3. ^ "Carex feta". ucjeps.berkeley.edu. Retrieved 2023-09-25.
  4. ^ "OregonFlora". oregonflora.org. Retrieved 2023-09-26.
  5. ^ Rothrock, P. E.; Reznicek, A. A. (1998). "Documented Chromosome Numbers 1998: 1. Chromosome Numbers in Carex Section Ovales (Cyperaceae): Additions, Variations, and Corrections". SIDA, Contributions to Botany. 18 (2): 587–592. JSTOR 41967648.