Native to:
Afghanistan,
Alaska,
Alberta,
Altay,
Amur,
Assam,
Austria,
Baltic States,
Belarus,
British Columbia,
Bulgaria,
Buryatiya,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Corse,
Czechoslovakia,
East European Russia,
East Himalaya,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Idaho,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Michigan,
Minnesota,
Mongolia,
Montana,
Morocco,
Myanmar,
Nepal,
Netherlands,
New Brunswick,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nunavut,
Ontario,
Oregon,
Pakistan,
Poland,
Portugal,
Primorye,
Qinghai,
Québec,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tibet,
Transcaucasus,
Turkey,
Turkmenistan,
Tuva,
Ukraine,
Utah,
Uzbekistan,
Washington,
West Himalaya,
West Siberia,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon