Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Angola,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Burundi,
Canary Is.,
Cape Provinces,
Cape Verde,
Central African Repu,
Central European Rus,
Chad,
China North-Central,
China South-Central,
China Southeast,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
France,
Free State,
Germany,
Great Britain,
Greece,
Hungary,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Italy,
Japan,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Kriti,
Krym,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Manchuria,
Morocco,
Mozambique,
Namibia,
Nepal,
Netherlands,
North Caucasus,
North European Russi,
Northern Provinces,
Northwest European R,
Pakistan,
Palestine,
Poland,
Portugal,
Qinghai,
Romania,
Rwanda,
Sardegna,
Saudi Arabia,
Sicilia,
South European Russi,
Spain,
Sudan,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Tanzania,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yemen,
Yugoslavia,
Zaïre,
Zimbabwe
Introduced into:
British Columbia,
Colorado,
Connecticut,
Finland,
Illinois,
Indiana,
Kentucky,
Maine,
Maryland,
Massachusetts,
Michigan,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Norway,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Utah,
Vermont,
Washington,
West Virginia,
Wisconsin