Native to:
Afghanistan,
Alabama,
Albania,
Alberta,
Algeria,
Arizona,
Arkansas,
Assam,
Azores,
Bahamas,
Bangladesh,
Bismarck Archipelago,
British Columbia,
Bulgaria,
California,
Cambodia,
Canary Is.,
Caroline Is.,
China North-Central,
China South-Central,
China Southeast,
Colorado,
Connecticut,
Cook Is.,
Costa Rica,
Cuba,
Cyprus,
Delaware,
District of Columbia,
East Aegean Is.,
East Himalaya,
El Salvador,
Fiji,
Florida,
France,
Georgia,
Greece,
Guatemala,
Hainan,
Hawaii,
Honduras,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Iran,
Iraq,
Italy,
Japan,
Jawa,
Kansas,
Kentucky,
Korea,
Kriti,
Krym,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Louisiana,
Madeira,
Maine,
Maluku,
Manitoba,
Marianas,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Morocco,
Myanmar,
Nansei-shoto,
Nebraska,
Nepal,
Nevada,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New Mexico,
New York,
Nicaragua,
Niue,
North Carolina,
North Caucasus,
North Dakota,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Palestine,
Pennsylvania,
Philippines,
Portugal,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Samoa,
Saskatchewan,
Sicilia,
Sinai,
Society Is.,
Solomon Is.,
South Carolina,
South Dakota,
Spain,
Sulawesi,
Sumatera,
Tadzhikistan,
Taiwan,
Tennessee,
Texas,
Thailand,
Tibet,
Tonga,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Utah,
Uzbekistan,
Vanuatu,
Vermont,
Vietnam,
Virginia,
Wallis-Futuna Is.,
Washington,
West Himalaya,
West Virginia,
Wisconsin,
Wyoming,
Yugoslavia
Introduced into:
Austria,
Czechoslovakia,
Germany,
Great Britain,
Hungary,
Inner Mongolia,
Kazakhstan,
Newfoundland,
Poland,
Romania,
South European Russi,
Switzerland,
Trinidad-Tobago,
Tunisia