Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Amur,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Finland,
France,
Føroyar,
Germany,
Greece,
Gulf States,
Hungary,
Iceland,
India,
Inner Mongolia,
Iran,
Iraq,
Irkutsk,
Italy,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Lebanon-Syria,
Libya,
Magadan,
Manchuria,
Mongolia,
Morocco,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Aleutian Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bangladesh,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
Burundi,
California,
Canary Is.,
Cape Provinces,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Crozet Is.,
Cuba,
Delaware,
District of Columbia,
Djibouti,
Dominican Republic,
Easter Is.,
Ecuador,
El Salvador,
Eritrea,
Ethiopia,
Falkland Is.,
Florida,
Free State,
Galápagos,
Georgia,
Great Britain,
Greenland,
Guatemala,
Gulf of Guinea Is.,
Hainan,
Haiti,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Jamaica,
Japan,
Jawa,
Kansas,
Kentucky,
Kenya,
Kerguelen,
KwaZulu-Natal,
Labrador,
Lesotho,
Louisiana,
Madeira,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mauritius,
Mexican Pacific Is.,
Mexico Central,
Mexico Northwest,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Namibia,
Nansei-shoto,
Nebraska,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
Newfoundland,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Provinces,
Northern Territory,
Northwest Territories,
Nova Scotia,
Nunavut,
Ogasawara-shoto,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Philippines,
Queensland,
Québec,
Rhode I.,
Rwanda,
Réunion,
Saskatchewan,
Socotra,
South Australia,
South Carolina,
South Dakota,
South Georgia,
Sri Lanka,
St.Helena,
Sudan,
Svalbard,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Uganda,
Uruguay,
Utah,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Yukon,
Zaïre,
Zimbabwe