672133 Draba juvenilis Kom.
Distribution
Taimyr - Severnaya Zemlya: Rare
Anabar - Onenyo: Rare
Kharaulakh: Rare
Yana - Kolyma: Rare
West Chukotka: Frequent
Wrangel Island: Scattered
South Chukotka: Rare
East Chukotka: Frequent
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Rare
Southern Arcti Tundra: Rare
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Kom., Repert. Spec. Nov. Regni Veg. 13: 167 (1914). Lectotype (LE): Russian Far East: Kamtchatka, Kashkan, Pushchino, 24. June 1909, leg. V.L. Komarov (see Berkutenko 1979: 124).
- Draba longipes Raup, Contr. Arnold Arbor. 6: 165 (1934). Type: Canada: the Northwest Territories, west slope of Mount Selwyn, near small lake, 26. July 1932, leg. H.M. Raup 4122.
- ?Draba prozorovskii Tolm., Trudy Bot. Muz. 22: 173 (1930). Described from Taimyr (Siberia).
2n=
(1) 48 (6x). - Far East (N). - At least three reports, several counts.
(2) 64 (8x). - Far East (N), Canada. - At least three reports, several counts.
Geography: Asian (NE) - amphi-Beringian - Cordilleran: SIB RFE ALA CAN.
Notes: Petrovsky: Draba prozorovskii is probably a marginal form of D. juvenilis in the Taimyr area where D. juvenilis s. str. is not known.
Elven and Petrovsky: Asian (LE, O) and North American (ALA, O) plants of, respectively, D. juvenilis and D. longipes are very similar morphologically (see Berkutenko 1979), especially in their regularly cruciform hairs (very long-stalked with 3-4 horizontal branches). The synonymization is still provisional but accepted by Al-Shehbaz et al. (2010a).
Higher Taxa
- Draba [6721,genus]