Native to:
Alabama,
Alaska,
Albania,
Alberta,
Aleutian Is.,
Algeria,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Baleares,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
California,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Connecticut,
Corse,
Costa Rica,
Cyprus,
East Aegean Is.,
Ecuador,
Egypt,
Ethiopia,
Florida,
France,
Georgia,
Greece,
Guatemala,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Italy,
Kansas,
Kentucky,
Kenya,
Kriti,
Lebanon-Syria,
Libya,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mauritania,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Montana,
Morocco,
Nebraska,
Nevada,
New Mexico,
New York,
Niger,
North Carolina,
North Dakota,
Northwest Territorie,
Nunavut,
Oklahoma,
Ontario,
Oregon,
Palestine,
Panamá,
Paraguay,
Pennsylvania,
Peru,
Portugal,
Québec,
Rhode I.,
Sardegna,
Saskatchewan,
Senegal,
Sicilia,
Sinai,
Somalia,
South Carolina,
South Dakota,
Spain,
Tanzania,
Texas,
Tunisia,
Turkey,
Turkey-in-Europe,
Uruguay,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Western Sahara,
Wisconsin,
Wyoming,
Yugoslavia,
Yukon
Introduced into:
Assam,
Austria,
Azores,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Canary Is.,
Cape Provinces,
Central European Rus,
China North-Central,
China Southeast,
Czechoslovakia,
Denmark,
Dominican Republic,
East European Russia,
Falkland Is.,
Finland,
Germany,
Great Britain,
Hawaii,
Hungary,
India,
Ireland,
Jamaica,
Jawa,
Kazakhstan,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
Labrador,
Madeira,
Malawi,
Mongolia,
Nepal,
Netherlands,
New Guinea,
New South Wales,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North European Russi,
Northwest European R,
Norway,
Pakistan,
Poland,
Queensland,
Romania,
Rwanda,
Sakhalin,
South Australia,
South European Russi,
Sweden,
Switzerland,
Tasmania,
Transcaucasus,
Uganda,
Ukraine,
Victoria,
West Siberia,
Western Australia,
Zaïre,
Zimbabwe