Native to:
Alaska,
Alberta,
Altay,
Amur,
Arizona,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
Central European Rus,
Chita,
Colorado,
Connecticut,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greenland,
Hungary,
Iceland,
Idaho,
Irkutsk,
Italy,
Kamchatka,
Kazakhstan,
Kentucky,
Khabarovsk,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Montana,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Oregon,
Pennsylvania,
Poland,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
Spain,
Sweden,
Switzerland,
Tennessee,
Turkey,
Tuva,
Ukraine,
Utah,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Yakutskiya,
Yugoslavia,
Yukon