Native to:
Alaska,
Albania,
Alberta,
Altay,
Amur,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
Central European Rus,
China North-Central,
China South-Central,
Chita,
Colorado,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Illinois,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Magadan,
Manchuria,
Manitoba,
Minnesota,
Mongolia,
Montana,
Morocco,
Nepal,
Netherlands,
New Mexico,
New York,
North Caucasus,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Ontario,
Poland,
Primorye,
Qinghai,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
South European Russi,
Sweden,
Switzerland,
Tibet,
Transcaucasus,
Turkey,
Tuva,
Ukraine,
Utah,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon