Native to:
Afghanistan,
Alabama,
Albania,
Alberta,
Algeria,
Angola,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Belize,
Benin,
Bolivia,
Botswana,
Brazil South,
Brazil Southeast,
British Columbia,
Bulgaria,
Burkina,
California,
Cambodia,
Cameroon,
Canary Is.,
Cape Provinces,
Cape Verde,
Central African Repu,
Central European Rus,
Chad,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colombia,
Colorado,
Connecticut,
Corse,
Costa Rica,
Cyprus,
Czechoslovakia,
Delaware,
Denmark,
Dominican Republic,
East Aegean Is.,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Florida,
France,
Free State,
Galápagos,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Guinea,
Gulf of Guinea Is.,
Gulf States,
Hainan,
Haiti,
Hawaii,
Honduras,
Hungary,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Iran,
Iraq,
Ireland,
Italy,
Jamaica,
Japan,
Jawa,
Juan Fernández Is.,
Kansas,
Kazakhstan,
Kentucky,
Kermadec Is.,
Korea,
Kriti,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Libya,
Louisiana,
Madagascar,
Madeira,
Maine,
Malawi,
Mali,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Mauritius,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Nicaragua,
Norfolk Is.,
North Carolina,
North Caucasus,
Northern Provinces,
Northern Territory,
Nova Scotia,
Ohio,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Philippines,
Poland,
Portugal,
Prince Edward I.,
Puerto Rico,
Queensland,
Québec,
Rhode I.,
Romania,
Rwanda,
Réunion,
Sardegna,
Saskatchewan,
Saudi Arabia,
Senegal,
Sicilia,
Sinai,
South Australia,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sri Lanka,
Sudan,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tasmania,
Tennessee,
Texas,
Thailand,
Tibet,
Transcaucasus,
Tubuai Is.,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Venezuela,
Vermont,
Victoria,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Antipodean Is.,
Chatham Is.,
Cuba,
Falkland Is.,
Malaya,
Tristan da Cunha