Native to:
Afghanistan,
Alaska,
Alberta,
Altay,
Amur,
Arizona,
Baltic States,
British Columbia,
Bulgaria,
Buryatiya,
California,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Connecticut,
East European Russia,
East Himalaya,
France,
Great Britain,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Mongolia,
Montana,
Nepal,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Northwest Territorie,
Nova Scotia,
Nunavut,
Ohio,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Primorye,
Qinghai,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Dakota,
Spain,
Sweden,
Tadzhikistan,
Tibet,
Transcaucasus,
Turkey,
Tuva,
Utah,
Uzbekistan,
Vermont,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Austria,
Belarus,
Central European Rus,
Germany,
Norway