862806 Tephroseris tundricola (Tolm.) Holub
Distribution
Polar Ural - Novaya Zemlya: Rare
Yamal - Gydan: Rare
Taimyr - Severnaya Zemlya: Scattered
Anabar - Onenyo: Rare
Kharaulakh: Scattered
Yana - Kolyma: Rare
West Chukotka: Rare
Wrangel Island: Presence uncertain
South Chukotka: Presence uncertain
East Chukotka: Presence uncertain
Western Alaska: Rare
Southern Arcti Tundra: Scattered
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Holub, Folia Geobot. Phytotax. 8: 174 (1973). - Senecio tundricola Tolm., Dokl. Akad. Nauk SSSR, ser. A., 1928: 266 (1928). Described from northwestern Siberia. - Senecio integrifolius subsp. tundricola (Tolm.) Chater, Bot. J. Linn. Soc. 68: 276 (1974).
2n=
(1) 72 (4x, x = 18). - Russia (N). - Lavrenko and Serditov (1987).
(2) 80 (4x, x = 20). - Siberia (N), Far East (N). - Yurtsev and Zhukova (1982); Zhukova and Petrovsky (1987b).
(3) 90. - Siberia. - Krogulevich and Rostovtseva (1984).
(4) 96 (4x, x = 24). - Russia (N). - Lavrenko et al. (1988, 1989).
The reports of 2n = 72, 90, and 96 have been referred under T. integrifolia (s. lat.) but are here assigned under T. tundricola.
Geography: Asian (N) - amphi-Beringian (W): RUS SIB RFE ALA.
Notes: Murray and Elven: There are numerous arctic specimens (LE) annotated as Tephroseris tundricola from throughout the northern Russian Far East. Some Alaskan plants (ALA) are not very different either. Barkley and Murray (2006) accepted T. tundricola from the Bering Strait areas in western Alaska. See, however, the Russian accounts where the eastern limit of T. tundricola is mapped in West Chukotka, whereas the East Chukotka plants up to the Bering Strait are considered to belong to T. integrifolia.
Higher Taxa
- Tephroseris [8628,genus]