Native to:
Afghanistan,
Alabama,
Albania,
Alberta,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Austria,
Azores,
Baleares,
Belgium,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
British Columbia,
Bulgaria,
Burundi,
Buryatiya,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Chad,
Chatham Is.,
Chile Central,
Chile North,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colombia,
Colorado,
Connecticut,
Corse,
Costa Rica,
Cuba,
Cyprus,
Czechoslovakia,
Delaware,
Desventurados Is.,
District of Columbia,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Ecuador,
Egypt,
Eritrea,
Ethiopia,
Florida,
France,
Free State,
Galápagos,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Gulf of Guinea Is.,
Gulf States,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Juan Fernández Is.,
Kansas,
Kazakhstan,
Kentucky,
Kenya,
Kermadec Is.,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Louisiana,
Madagascar,
Madeira,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Morocco,
Namibia,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Norfolk Is.,
North Carolina,
North Caucasus,
North Dakota,
Northern Territory,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Peru,
Portugal,
Primorye,
Qinghai,
Queensland,
Québec,
Romania,
Rwanda,
Sardegna,
Saskatchewan,
Saudi Arabia,
Sicilia,
Sinai,
Socotra,
Somalia,
South Australia,
South Carolina,
South Dakota,
Spain,
Sudan,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Uganda,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Venezuela,
Vermont,
Victoria,
Vietnam,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia,
Yukon,
Zaïre
Introduced into:
Brazil Northeast,
Denmark,
Finland,
Haiti,
Jamaica,
New Caledonia,
Norway,
Poland,
St.Helena,
Sweden