Kobresia sibirica

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Siberian bog sedge
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Cyperaceae
Genus: Kobresia
Species: K. sibirica
Binomial name
Kobresia sibirica
(Turcz. ex Ledeb.) Boeckeler
  • Elyna sibirica Turcz.
  • Kobresia arctica A.E.Porsild
  • Kobresia bellardii var. macrocarpa (Clokey) H.D.Harr.
  • Kobresia hyperborea A.E.Porsild
  • Kobresia hyperborea var. alaskana Duman
  • Kobresia hyperborea var. lepagei Duman
  • Kobresia macrocarpa Clokey ex Mack.
  • Kobresia schoenoides var. lepagei (Duman) B.Boivin

Kobresia sibirica, the Siberian bog sedge, is a plant species known from arctic and alpine tundra in Siberia, the Russian Far East, Alaska, Yukon, the Canadian Northwest Territories, Nunavut, British Columbia, Colorado (several counties in the Rockies), Utah (Duchesne County), Montana (Carbon County), and Wyoming (Park County). Some authorities have considered the North American collections as distinct species (K. macrocarpa, described from Colorado,[2] and K. hyperborea from the Canadian Arctic),[3] but they are more often tentatively regarded as conspecific with K. siberica pending further investigation.[4][5][6][7]

Kobresia sibirica is a perennial herb spreading by means of underground rhizomes. Culms are up to 40 cm tall. Leaves are narrow and thread-like, up to 15 cm long. Lower spikelets generally have both pistillate and staminate flowers, while uppermost spikelets are staminate only.[4][8][9][10][11][12]


  1. ^ The Plant List
  2. ^ Clokey, Ira Waddell, ex Mackenzie, Kenneth Kent. 1931. North American Flora 18(1): 5.
  3. ^ Porsild, Alf Erling. 1951. Bulletin of the National Museum of Canada 121: 103.
  4. ^ a b Flora of North America v 23 p 253. Kobresia sibirica
  5. ^ BONAP (Biota of North America Program) floristic synthesis, Kobresia sibirica
  6. ^ Tolmatchev, A. I. 1966. Cyperaceae. Arkticheskaia Flora SSSR 3: 1–176.
  7. ^ Czerepanov, S. K. 1981. Sosudistye Rasteniia SSSR 509 pages. Nauka, Leningradskoe Otd-nie, Leningrad.
  8. ^ photo of herbarium specimen at Missouri Botanical Garden, isotype of Kobresia macrocarpa (synonym of Kobresia sibirica) collected in Colorado
  9. ^ Turczaninow, Nicolai Stepanowitsch, in Ledebour, Carl (Karl) Friedrich von. 1852. Flora Rossica 4(13): 262.
  10. ^ Boeckeler, Johann Otto. 1875. Linnaea 39: 7.
  11. ^ Cody, W. J. 1996. Flora of the Yukon Territory i–xvii, 1–669. NRC Research Press, Ottawa.
  12. ^ Welsh, S. L. 1974. Anderson's Flora of Alaska and Adjacent Parts of Canada i–xvi, 1–724. Brigham Young University Press, Provo.