672120 Draba nivalis Lilj.
Distribution
Northern Iceland: Scattered
Northern Fennoscandia: Rare
Kanin - Pechora: Scattered
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Frequent
Kharaulakh: Rare
Yana - Kolyma: Rare
West Chukotka: Frequent
South Chukotka: Rare
East Chukotka: Frequent
Western Alaska: Scattered
Northern Alaska - Yukon: Scattered
Central Canada: Frequent
Hudson Bay - Labrador: Frequent
Ellesmere Island: Scattered
Western Greenland: Frequent
Eastern Greenland: Frequent
Polar desert: Scattered
Northern arctic Tundra: Frequent
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Lilj., Utkast Sv. Fl.: 236 (1792). Described from Scandinavia. Material suitable for a lectotype may be available (UPS!).
- Draba caesia Adams, Mém. Soc. Imp. Naturalistes Moscou 5: 108 (1817). Described from the Lena River estuary in Yakutia (Siberia). Syntypes in MW! and G-DC!
2n=
16 (2x). - Europe (N), Siberia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports. Diploid in FCM, Grundt et al. (2005b; Norway, Svalbard, Siberia, Alaska, Canada, Greenland).
Geography: Circumpolar-alpine: ICE NOR RUS SIB RFE ALA CAN GRL.
Notes: Petrovsky, Grundt, and Elven: Draba caesia Adams 1817 has frequently been applied as the priority name for the species considered as D. palanderiana (e.g., Hultén 1968a; Tolmachev 1975b). The syntypes of D. caesia are indistinguishable from D. nivalis and the name is a synonym for D. nivalis.
Grundt and Elven: Draba nivalis is a very widespread arctic-alpine species, comparatively uniform in molecular markers and also in morphology throughout its large range, even if leaf pubescence can vary from totally covering (the most common situation) to only stripes along the margins, or lacking altogether. The subglabrous and glabrous plants occur as populations but scattered here and there within the range of the densely hairy ones. We consider them taxonomically insignificant. Hybrids with D. fladnizensis and D. rupestris are frequent but invariably sterile.
Higher Taxa
- Draba [6721,genus]