Native to:
Afghanistan,
Albania,
Algeria,
Austria,
Baleares,
Baltic States,
Belgium,
Bulgaria,
China South-Central,
China Southeast,
Corse,
Czechoslovakia,
Denmark,
France,
Germany,
Great Britain,
Greece,
Hungary,
Inner Mongolia,
Ireland,
Italy,
Japan,
Kazakhstan,
Kirgizstan,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Manchuria,
Morocco,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
Pakistan,
Poland,
Portugal,
Qinghai,
Romania,
Sardegna,
Sicilia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkmenistan,
Ukraine,
Uzbekistan,
Xinjiang,
Yugoslavia
Introduced into:
Arkansas,
Assam,
California,
Kentucky,
Louisiana,
New York,
North Carolina,
Oklahoma,
Tennessee