Native to:
Afghanistan,
Albania,
Altay,
Amur,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Hungary,
Iceland,
Inner Mongolia,
Iran,
Ireland,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Manchuria,
Mongolia,
Morocco,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Pakistan,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sardegna,
Sicilia,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tibet,
Transcaucasus,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yugoslavia
Introduced into:
Alaska,
Alberta,
Aleutian Is.,
Argentina Northeast,
Argentina South,
British Columbia,
Chad,
Chile South,
Connecticut,
Haiti,
Labrador,
Maine,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
New Brunswick,
New Hampshire,
New York,
Newfoundland,
Nova Scotia,
Ontario,
Oregon,
Pennsylvania,
Québec,
Saskatchewan,
Svalbard,
Vermont,
Wisconsin