Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Amur,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Buryatiya,
California,
Central European Rus,
China North-Central,
China South-Central,
Chita,
Colorado,
Czechoslovakia,
East European Russia,
Finland,
France,
Georgia,
Germany,
Great Britain,
Greenland,
Inner Mongolia,
Ireland,
Irkutsk,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Manchuria,
Manitoba,
Minnesota,
Mongolia,
Montana,
Netherlands,
New Hampshire,
New York,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Nunavut,
Ontario,
Oregon,
Primorye,
Québec,
Sakhalin,
Saskatchewan,
South European Russi,
Sweden,
Switzerland,
Transcaucasus,
Tuva,
Vermont,
Washington,
West Siberia,
Xinjiang,
Yakutskiya,
Yukon