Native to:
Bangladesh,
East Himalaya,
India,
Maldives,
Myanmar,
Nepal,
Pakistan,
Sri Lanka,
West Himalaya
Introduced into:
Afghanistan,
Alabama,
Albania,
Alberta,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Arizona,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bermuda,
Botswana,
Brazil North,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
Buryatiya,
California,
Cameroon,
Canary Is.,
Caroline Is.,
Central European Rus,
Chatham Is.,
China South-Central,
China Southeast,
Chita,
Colombia,
Colorado,
Comoros,
Connecticut,
Cuba,
Cyprus,
Czechoslovakia,
Delaware,
District of Columbia,
Dominican Republic,
East European Russia,
Egypt,
Florida,
France,
French Guiana,
Georgia,
Germany,
Great Britain,
Greece,
Gulf States,
Guyana,
Haiti,
Hawaii,
Honduras,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kansas,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krym,
Lebanon-Syria,
Leeward Is.,
Lesotho,
Libya,
Louisiana,
Madagascar,
Madeira,
Maine,
Manitoba,
Marianas,
Maryland,
Massachusetts,
Mauritius,
Mexico Central,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Nansei-shoto,
Nebraska,
Nevada,
New Brunswick,
New Caledonia,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northern Provinces,
Northwest European R,
Nova Scotia,
Ohio,
Oman,
Ontario,
Oregon,
Palestine,
Pennsylvania,
Philippines,
Poland,
Primorye,
Prince Edward I.,
Puerto Rico,
Québec,
Rhode I.,
Romania,
Sardegna,
Saskatchewan,
Saudi Arabia,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tasmania,
Tennessee,
Texas,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Vermont,
Vietnam,
Virginia,
Washington,
West Siberia,
Wisconsin,
Wyoming,
Yakutskiya,
Yemen,
Yugoslavia