630601b Oxytropis deflexa subsp. dezhnevii (Jurtz.) Jurtz.
Distribution
East Chukotka: Rare
Western Alaska: Rare
Northern Alaska - Yukon: Scattered
Central Canada: Rare
Hudson Bay - Labrador: Scattered
Mid Arctic Tundra: Presence uncertain
Southern Arcti Tundra: Rare
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Jurtz., Fl. Arct. URSS 9, 2: 78 (1986). - Oxytropis deflexa var. dezhnevii Jurtz., Bot. Zhurn. 57: 647 (1972). Holotype (LE): Russian Far East: East Chukotka, "Peninsulae Tschukotskij, pars extremi-orientalis, ad fl. Utaveem", 31. July 1970, leg. B. Yurtsev, J. Kozhevnikov, and A. Neczaev.
- Oxytropis foliolosa Hook., Fl. Bor.-Amer. 1: 146 (1831). Holotype (K): Canada: Alberta, "Ox. foliolosa Hook. Fl. Bor. Amer. Rocky Mountains" Fort Saskatchewan, leg. Drummond? - Oxytropis deflexa var. foliolosa (Hook.) Barneby, Leafl. W. Bot. 5: 111 (1951). - Oxytropis deflexa subsp. foliolosa (Hook.) Cody, Canad. Field-Naturalist 108: 94 (1994).
2n=
16 (2x). - Far East (East Chukotka for "dezhnevii"), Alaska, Canada (for "foliolosa"). - At least five reports.
Geography: Amphi-Beringian (E) - North American: RFE ALA CAN.
Notes: Yurtsev: The East Chukotkan race subsp. dezhnevii has been found in five localities, more or less uniform in each of them. Geographically it is intermediate between subsp. deflexa and subsp. foliolosa, but not morphologically, where it is a marginal type, most distant from subsp. deflexa. The rise of subsp. dezhnevii most probably resulted from a return migration of a North American race subsp. [foliolosa] into the easternmost Chukchi Peninsula (in parallel to many other North American taxa).
Elven and Murray: Subspecies foliolosa reaches the Bering Strait on the American side. Yurtsev identified one western Alaskan specimen (from the Seward Peninsula, ALA) as subsp. dezhnevii rather than as subsp. foliolosa which is our identification of this specimen. Löve and Löve (1975a) included the Chukotkan chromosome report of Yurtsev and Tzvelev (1972) under subsp. foliolosa. Welsh (2001) synonymized subsp. dezhnevii with his var. foliolosa. We do not accept subsp. dezhnevii apart from subsp. foliolosa. However, when the two are synonymized, the name subsp. dezhnevii has priority.
Higher Taxa
- Oxytropis deflexa [630601,species]