Native to:
Albania,
Algeria,
Altay,
Austria,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Cameroon,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Gulf of Guinea Is.,
Hawaii,
Hungary,
India,
Inner Mongolia,
Iran,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Lebanon-Syria,
Madeira,
Manchuria,
Mongolia,
Morocco,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Pakistan,
Philippines,
Poland,
Portugal,
Primorye,
Romania,
Sardegna,
Socotra,
South European Russi,
Spain,
Sweden,
Switzerland,
Taiwan,
Thailand,
Tibet,
Transcaucasus,
Turkey,
Turkmenistan,
Tuva,
Ukraine,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia
Extinct in:
Sri Lanka
Introduced into:
Maryland,
Massachusetts,
Michigan,
New York,
Nova Scotia,
Ontario,
Pennsylvania,
West Virginia