Panarctic Flora


361215 Ranunculus sulphureus var. sulphureus] Sol.


Northern Fennoscandia: Scattered
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Frequent
Anabar - Onenyo: Frequent
Kharaulakh: Frequent
Yana - Kolyma: Frequent
West Chukotka: Frequent
Wrangel Island: Frequent
South Chukotka: Rare
East Chukotka: Frequent
Western Alaska: Scattered
Northern Alaska - Yukon: Frequent
Central Canada: Frequent
Hudson Bay - Labrador: Frequent
Ellesmere Island: Frequent
Western Greenland: Scattered
Eastern Greenland: Frequent
Polar desert: Frequent
Northern arctic Tundra: Frequent
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Scattered

2n= (1) 64 (8x). - Russia (N), Siberia (S). - At least four reports.
(2) ca. 76. - Far East (Kamtchatka). - Sokolovskaya (1963).
(3) 80 (10x). - Europe (N), Far East (N), Canada. - At least four reports.
(4) ca. 84. - Far East (N), Canada. - Mosquin and Hayley (1966); Zhukova et al. (1973).
(5) 96 96-ca. 98 (12x). - Europe (N), Russia (N), Siberia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports.
Löve and Löve (1975a) omitted reports of all other numbers than 2n = 96 for this species.
Not included: A report of 2n = ca. 56 from eastern Greenland (Böcher 1938a), see Jørgensen et al. (1958: 63). Possibly confused with R. nivalis. Reports of 2n = 42 from Melville and Devon islands in arctic Canada (Mosquin and Hayley 1966; Scott 1974a) should be checked against vouchers.

Geography: Circumpolar-alpine: NOR RUS SIB RFE ALA CAN GRL.

Notes: In addition to the mainly arctic var. sulphureus there is a non-arctic var. intercedens Hultén in Kamtchatka and the Aleutian Islands.

The name Ranunculus altaicus Laxm. has sometimes been applied to arctic plants. Ranunculus altaicus is a related but diploid (2n = 16, Krasnikov and Schaulo 1986) southern Siberian species differing also in morphological characters.

Higher Taxa