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