810401 Euphrasia wettsteinii G. Gusarova
Distribution
Northern Iceland: Frequent
Northern Fennoscandia: Frequent
Kanin - Pechora: Scattered
Svalbard - Franz Joseph Land: Rare
Polar Ural - Novaya Zemlya: Scattered
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Rare
Hudson Bay - Labrador: Scattered
Ellesmere Island: Rare
Western Greenland: Frequent
Eastern Greenland: Frequent
Northern arctic Tundra: Rare
Mid Arctic Tundra: Scattered
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- G. Gusarova, Bot. Zhurn. 89: 1103-1104 (2005). Holotype (LECB): European Russia: "Karelia, Mare Beloje, Sinus Kandalakshskij, Guba Tschupinskaja, insula Srednij", 17. Sept. 1996, leg. G. Gusarova.
- Euphrasia arctica auct., non Lange ex Rostr. (1870-1871).
- Euphrasia frigida auct., non Pugsley (1930).
2n=
44 (4x). - Europe (NW), Greenland. - Löve and Löve (1956b); Jørgensen et al. (1958).
The assignment of these two reports under this species name is uncertain.
Geography: North American (NE) - amphi-Atlantic - European (N) - Asian (NW): ICE NOR RUS SIB CAN GRL.
Notes: Gusarova and Elven: A common eglandular, small-flowered plant in the North Atlantic regions has for several decades been considered under the name Euphrasia frigida. The Greenland type of E. frigida designated by Pugsley (1933) is glandular, large-flowered, and differs also in other aspects from the plant that has gone by that name. The name E. wettsteinii therefore replaces the name E. frigida for the plants in northern Europe and Canada and also for a major part of the Greenland plants. Euphrasia wettsteinii is early and small-flowered, eglandular, and the only species with a major range in the Arctic from northeastern Canada across Greenland and northern Europe to northwestern Siberia. It is, however, polymorphic and may fall apart into several taxa when further investigated. The Icelandic plants, for instance, differ from the Fennoscandian ones (i.e., from the type region).
Higher Taxa
- Euphrasia [8104,genus]