Native to:
Alabama,
Alaska,
Alberta,
Altay,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bahamas,
Belize,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
California,
Chile Central,
Chile North,
Chile South,
China North-Central,
China Southeast,
Chita,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
Ecuador,
Falkland Is.,
Florida,
Georgia,
Guatemala,
Haiti,
Honduras,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Jamaica,
Kansas,
Kazakhstan,
Kentucky,
Kirgizstan,
Krasnoyarsk,
Labrador,
Louisiana,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
Nicaragua,
North Carolina,
North Dakota,
Northwest Territories,
Nova Scotia,
Nunavut,
Ohio,
Oklahoma,
Ontario,
Oregon,
Paraguay,
Pennsylvania,
Peru,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Carolina,
South Dakota,
Tadzhikistan,
Tennessee,
Texas,
Tuva,
Uruguay,
Utah,
Uzbekistan,
Venezuela,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yukon
Introduced into:
Albania,
Algeria,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Bermuda,
Botswana,
Bulgaria,
Canary Is.,
Cape Provinces,
China South-Central,
Christmas I.,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Egypt,
El Salvador,
Ethiopia,
Fiji,
Finland,
France,
Free State,
French Guiana,
Germany,
Gilbert Is.,
Great Britain,
Greece,
Gulf States,
Guyana,
Hawaii,
Hungary,
India,
Iran,
Iraq,
Ireland,
Italy,
Jawa,
Korea,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madeira,
Marianas,
Mauritania,
Mauritius,
Morocco,
Namibia,
Netherlands,
New Caledonia,
New South Wales,
New Zealand North,
Niue,
Norfolk Is.,
North Caucasus,
Northern Provinces,
Northern Territory,
Northwest European Russia,
Norway,
Ogasawara-shoto,
Pakistan,
Palestine,
Poland,
Portugal,
Puerto Rico,
Queensland,
Romania,
Réunion,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South Australia,
South European Russia,
Spain,
Swaziland,
Sweden,
Switzerland,
Taiwan,
Tasmania,
Transcaucasus,
Tubuai Is.,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Victoria,
West Himalaya,
Western Australia,
Yugoslavia,
Zimbabwe