Carex annectens

Carex annectens, sometimes called yellow-fruited fox sedge, is a species of sedge native to most of the eastern United States and southeastern Canada.[2][1] It is common in prairies and high-water table fallow fields. In the Chicago area, its coefficient of conservatism is 3 (out of 10),[3] and in Michigan, it is only 1,[4] indicating its relatively low fidelity to high quality habitats.

Carex annectens
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Section: Carex sect. Multiflorae
Species:
C. annectens
Binomial name
Carex annectens
(E.P.Bicknell) E.P.Bicknell
Synonyms[1]

It is often confused with Carex vulpinoidea.[4] It can be distinguished from C. vulpinoidea by its longer leaves (exceeding the height of the flowering stems), the more elongated perigynia, and the longer flowering spikes (often more than 5.5 cm long).[3] Like many sedges, the perigynia of Carex annectens begin to ripen in June.[3]

Taxonomy

It was first formally described as Carex xanthocarpa var. annectens in 1896 by American botanist Eugene P. Bicknell.[5]

Two varieties are sometimes accepted:[4][3]

  • C. annectens var. annectens – large-seeded fox sedge
  • C. annectens var. xanthocarpa – small-seeded fox sedge
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References
  1. "Carex annectens (E.P.Bicknell) E.P.Bicknell". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 27 December 2019.
  2. Brouillet L, Desmet P, Coursol F, Meades SJ, Favreau M, Anions M, Bélisle P, Gendreau C, Shorthouse D, and contributors (2010+). "Carex annectens (E.P.Bicknell) E.P.Bicknell". data.canadensys.net. Database of Vascular Plants of Canada (VASCAN). Retrieved 27 December 2019.CS1 maint: uses authors parameter (link)
  3. Wilhelm, Gerould; Rericha, Laura (2017). Flora of the Chicago Region: A Floristic and Ecological Synthesis. Indiana Academy of Sciences.
  4. Reznicek, A. A.; Voss, E. G.; Walters, B. S., eds. (February 2011). "Carex annectens". Michigan Flora Online. University of Michigan Herbarium.
  5. "Carex annectens (E.P.Bicknell) E.P.Bicknell". ipni.org. International Plant Names Index. Retrieved 27 December 2019.
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