Native to:
Alaska,
Albania,
Alberta,
Algeria,
Austria,
Baltic States,
Belgium,
British Columbia,
Bulgaria,
Central European Rus,
Connecticut,
Corse,
Czechoslovakia,
Denmark,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
Idaho,
Indiana,
Iran,
Italy,
Krym,
Labrador,
Maine,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Montana,
Morocco,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Nunavut,
Ohio,
Ontario,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Vermont,
Wisconsin,
Yakutskiya,
Yugoslavia