672125 Draba cinerea Adams
Distribution
Kanin - Pechora: Rare
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Frequent
Anabar - Onenyo: Scattered
Kharaulakh: Frequent
Yana - Kolyma: Rare
West Chukotka: Frequent
Wrangel Island: Frequent
South Chukotka: Rare
East Chukotka: Scattered
Western Alaska: Frequent
Northern Alaska - Yukon: Frequent
Central Canada: Scattered
Hudson Bay - Labrador: Scattered
Ellesmere Island: Rare
Western Greenland: Scattered
Eastern Greenland: Rare
Mid Arctic Tundra: Rare
Southern Arcti Tundra: Scattered
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Adams, Mém. Soc. Imp. Naturalistes Moscou 5: 103 (1817). Syntypes (MW!, G-DC!, LE?): Siberia: Yakutia, "habitat in Sibiria septentrionali ad ostium fluvii Dschulamda in Lenam, prope urbem Schigansk", leg. Adams. See notes.
2n=
(1) 32 (4x). - Siberia (N). - Zhukova and Petrovsky (1984, for subsp. brachysiliqua).
(2) 48 (6x). - Europa (N), Russia (N), Siberia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports.
(3) 56 (7x). - Far East (Wrangel Island). - Zhukova and Petrovsky (1984).
(4) 64 (8x). - Far East (West Chukotka). - Zhukova and Petrovsky (1984).
Tetraploid (2n = 32, for subsp. brachysiliqua), heptaploid (2n = 56), and octoploid (2n = 64) numbers are reported from northeastern Asia (Zhukova and Petrovsky 1984). In view of the very varied concept of D. cinerea applied throughout time and across regions, all chromosome number reports except those of the wellproved hexaploids need to be checked against vouchers before acceptance.
Geography: Circumboreal-polar: RUS SIB RFE ALA CAN GRL.
Notes: Murray, Solstad, and Elven: No type seems to have been designated for the name Draba cinerea. The MW specimen looks strange (atavistic?) and does not fit very well the protologue or the current concept of this species or any other arctic or near arctic Draba we are familiar with. The two specimens in G-DC (ex Herb. Steven, "ad Lenam inferiorem" in Adams' handwriting; ex Herb. Fischer, "in boreal ad Lenam") are similar to each other and fit the protologue and the current usage of the species name. Collecting along Lena River in 2004, including the type area of Schigansk, Elven and Solstad found only characteristic D. cinerea in their concept (and in abundance). The Herb. Stevens G-DC specimen would be an unambiguous lectotype and would confirm the usage established in Russia, northwestern Europe, and Greenland, mostly also in North America.
Draba cinerea as currently considered occurs in the northern parts of Norway and Finland but does not reach the Arctic there. Se notes under D. arctica. There are a few Icelandic specimens (ICEL) strongly resembling this species in many features but not yet confirmed as to identity or provenience.
Draba cinerea is polymorphic even after exclusion of D. arctica, D. arctogena, D. oblongata, and others. Andersen (2003) found two groups - both in isoenzymes and morphology - in Greenland and northern Fennoscandian populations assigned to D. cinerea (the same two groups present in both areas), one of these with only stellate hairs ("cinerea" s. str.), the other with both stellate and simple hairs (and some other differences). He also found Alaskan D. cinerea to differ from northern European D. cinerea in isoenzymes. We suspect that studies including populations from more areas and utilizing more markers would increase the problems in circumscribing one clear species. Mossberg and Stenberg (2003: 225) accepted the second part of the Fennoscandian plants as a D. sp. besides D. cinerea.
Higher Taxa
- Draba [6721,genus]