Native to:
Alaska,
Alberta,
Altay,
Amur,
Arizona,
Austria,
Baltic States,
Belarus,
British Columbia,
California,
Central European Russia,
China North-Central,
Colorado,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Greenland,
Idaho,
Inner Mongolia,
Italy,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Magadan,
Manitoba,
Mexico Northeast,
Mexico Northwest,
Minnesota,
Mongolia,
Montana,
Nevada,
New Mexico,
North Caucasus,
North Dakota,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nunavut,
Ontario,
Oregon,
Poland,
Primorye,
Québec,
Romania,
Saskatchewan,
South Dakota,
South European Russia,
Sweden,
Switzerland,
Texas,
Transcaucasus,
Ukraine,
Utah,
Washington,
West Himalaya,
West Siberia,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Extinct in:
Newfoundland