Panarctic Flora


341606b Deschampsia sukatschewii subsp. orientalis (Hultén) Tzvelev


West Chukotka: Rare
Wrangel Island: Rare
South Chukotka: Rare
East Chukotka: Rare
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Scattered
Hudson Bay - Labrador: Scattered
Southern Arcti Tundra: Rare
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent

2n= (1) 24 26 (2x). - Far East (N), Canada. - At least three reports.
(2) 42 (ca. 3x). - Far East (N). - At least three reports.
(3) 52 (4x). - Far East (N). - Zhukova and Petrovsky (1976); Petrovsky and Zhukova (1981).

Geography: Asian (NE) - amphi-Beringian - North American (N): RFE ALA CAN.

Notes: As circumscribed here, subsp. orientalis includes a majority of the lowland plants in Chukotka, around the Bering Strait, and along the coasts of northern Alaska and at least northwestern Canada. Moreover, there is a report under this name of a diploid chromosome number from Churchill on Hudson Bay, Manitoba (Löve and Löve 1981a).

Barkworth's (2007b) merger of subsp. orientalis and subsp. borealis may be justified, in which case the name subsp. orientalis has priority based on Hultén (1927).

Higher Taxa