Panarctic Flora


341607 Deschampsia obensis Roshev.


Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Scattered
Anabar - Onenyo: Scattered
Kharaulakh: Scattered
Yana - Kolyma: Rare
West Chukotka: Rare
East Chukotka: Rare
Southern Arcti Tundra: Rare
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent

2n= (1) 42 >44. - Far East (West Chukotka). - Zhukova and Petrovsky (1975).
(2) 52 (4x). - Far East (West Chukotka). - Zhukova and Petrovsky (1980).

Geography: European (NE) - Asian (N): SIB RFE.

Notes: Tzvelev: I consider Deschampsia obensis a distinct species, common in some areas, but closely related to both D. sukatschewii and D. beringensis.

Elven: It differs from both of these in very diffuse tussocks and from D. sukatschewii in its larger spikelets. Nikiforova (1990a) considered D. obensis and D. submutica two species. Deschampsia submutica is distinguished from D. obensis by much more numerous and smaller (3-4 mm vs. 4.5-6 mm) spikelets.

Higher Taxa