Native to:
Afghanistan,
Albania,
Algeria,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East Himalaya,
France,
Germany,
Great Britain,
Greece,
Hungary,
Iran,
Iraq,
Ireland,
Italy,
Japan,
Korea,
Kriti,
Krym,
Laos,
Lebanon-Syria,
Madeira,
Morocco,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
Northwest European R,
Norway,
Pakistan,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Taiwan,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
Vietnam,
West Himalaya,
Yugoslavia
Introduced into:
Alabama,
Argentina Northeast,
Argentina Northwest,
Florida,
Hawaii,
Illinois,
Juan Fernández Is.,
Kentucky,
Maryland,
Mexico Northwest,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Oregon,
Queensland,
South Australia,
Tasmania,
Victoria,
Western Australia