641060c Potentilla anserina subsp. groenlandica Tratt.
Distribution
Northern Iceland: Scattered
Northern Fennoscandia: Frequent
Kanin - Pechora: Frequent
Polar Ural - Novaya Zemlya: Rare
Kharaulakh: Rare
West Chukotka: Scattered
South Chukotka: Frequent
East Chukotka: Frequent
Western Alaska: Frequent
Northern Alaska - Yukon: Rare
Central Canada: Scattered
Hudson Bay - Labrador: Scattered
Western Greenland: Frequent
Eastern Greenland: Scattered
Mid Arctic Tundra: Presence uncertain
Southern Arcti Tundra: Scattered
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- Tratt., Rosac. Monogr. 4: 13 (1824). Described from Greenland. - Potentilla egedii var. groenlandica (Tratt.) Polunin, Rhodora 41: 40 (1939). - Argentina anserina subsp. groenlandica (Tratt.) Á. Löve, Taxon 19: 300 (1970).
- Potentilla egedii Wormsk., Fl. Dan. 9, 27: 5, t. 1578 (1818). Holotype: Greenland: Holsteinborg. Wormskiold, Fl. Dan. 9, 27: t. 1578. 1818. (see Rousi 1965: 103). A specimen (C) cited by Wormskiold, leg. Giesecke, has not been found. - Argentina egedii (Wormsk.) Rydb., Monogr. N. Amer. Potentill.: 158 (1898). - Potentilla anserina subsp. egedii (Wormsk.) Hiitonen, Suom. Kasvio: 449 (1933). - Argentina anserina subsp. egedii (Wormsk.) Á. Löve & Ritchie, Canad. J. Bot. 44: 435 (1966).
2n=
(1) 28 (4x). - Europe (N), Russia (N), Far East (N), Alaska, Canada, Greenland. - Numerous reports.
(2) 35 (5x). - Europe (N), Russia (N). - Erlandsson (1942b).
(3) 42 (6x). - Europe (Norway). - Erlandsson (1942b, four populations).
Also 2n = 28 (4x) from western Alaska (Murray and Kelso 1997), in the meeting zone between subsp. groenlandica and subsp. pacifica.
Geography: Amphi-Beringian - North American (N) - amphi-Atlantic - European (N): ICE NOR RUS SIB RFE ALA CAN GRL.
Notes: We provisionally accept the name subsp. groenlandica to have priority for this subspecies (see, e.g., Soják 1969; Löve 1970a). The characters reported for subsp. groenlandica are in some ways intermediate between subsp. egedii and subsp. anserina and could be due to hybridization. Similar plants are absent from the North Pacific regions where subsp. anserina also is absent. However, plants with the "groenlandica" appearance occur geographically independent of subsp. anserina, and in the absence of more "typical "egedii", in Iceland and in parts of Greenland and northern Scandinavia. We therefore assume that "groenlandica" and "egedii" are parts of the polymorphy within a single race
Yurtsev: On the Gilmimlinei Hot Springs (East Chukotka) is a rather peculiar var. thermalis Jurtz. with laciniate bractlets.
Higher Taxa
- Potentilla anserina [641060,species]