Native to:
Alabama,
Alberta,
Arizona,
Arkansas,
Bahamas,
Belize,
Bolivia,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
California,
Cayman Is.,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Dominican Republic,
Ecuador,
El Salvador,
Florida,
French Guiana,
Galápagos,
Georgia,
Guatemala,
Haiti,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Jamaica,
Kansas,
Kentucky,
Leeward Is.,
Louisiana,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nicaragua,
North Carolina,
North Dakota,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Panamá,
Pennsylvania,
Peru,
Prince Edward I.,
Puerto Rico,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
Suriname,
Tennessee,
Texas,
Trinidad-Tobago,
Turks-Caicos Is.,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Windward Is.,
Wisconsin,
Wyoming
Introduced into:
Afghanistan,
Albania,
Algeria,
Altay,
Amur,
Angola,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Cambodia,
Canary Is.,
Cape Provinces,
Caroline Is.,
Chagos Archipelago,
China North-Central,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Fiji,
Finland,
France,
Free State,
Germany,
Great Britain,
Greece,
Hawaii,
Hungary,
India,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Italy,
Japan,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madeira,
Marianas,
Marquesas,
Marshall Is.,
Mauritius,
Morocco,
Mozambique,
Nepal,
Netherlands,
New Guinea,
New South Wales,
Newfoundland,
Niue,
Norfolk Is.,
North Caucasus,
Northern Provinces,
Northwest European R,
Norway,
Pakistan,
Palestine,
Philippines,
Poland,
Portugal,
Primorye,
Queensland,
Romania,
Réunion,
Sakhalin,
Sardegna,
Sicilia,
Sinai,
South Australia,
South European Russi,
Spain,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tasmania,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Uzbekistan,
Victoria,
Vietnam,
Wake I.,
West Himalaya,
West Siberia,
Western Australia,
Yakutskiya,
Yugoslavia,
Zambia,
Zimbabwe