Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Rus,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Ethiopia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
India,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Kenya,
Kirgizstan,
Krasnoyarsk,
Kriti,
Krym,
Lebanon-Syria,
Madeira,
Mongolia,
Morocco,
Nepal,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Pakistan,
Palestine,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tanzania,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Yugoslavia,
Zimbabwe
Introduced into:
Alabama,
Aleutian Is.,
Amsterdam-St.Paul Is,
Amur,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Bahamas,
Bangladesh,
Bermuda,
Bolivia,
Brazil South,
California,
Canary Is.,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile North,
Chita,
Colombia,
Colorado,
Costa Rica,
Crozet Is.,
Cuba,
Dominican Republic,
Easter Is.,
Ecuador,
Falkland Is.,
Fiji,
Free State,
Guatemala,
Haiti,
Hawaii,
Honduras,
Idaho,
Illinois,
Inner Mongolia,
Jamaica,
Japan,
Jawa,
Juan Fernández Is.,
Kamchatka,
Kentucky,
Kerguelen,
Kermadec Is.,
Khabarovsk,
Korea,
Kuril Is.,
KwaZulu-Natal,
Labrador,
Magadan,
Maryland,
Mexico Southwest,
Minnesota,
Nansei-shoto,
Nevada,
New Guinea,
New Mexico,
New South Wales,
New Zealand North,
New Zealand South,
Newfoundland,
Nicaragua,
Norfolk Is.,
Northern Provinces,
Oregon,
Panamá,
Peru,
Primorye,
Queensland,
Réunion,
Sakhalin,
South Georgia,
Sri Lanka,
St.Helena,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Uruguay,
Venezuela,
Vermont,
Victoria,
Washington,
Western Australia,
Wisconsin,
Yakutskiya