Native to:
Algeria,
Angola,
Assam,
Bangladesh,
Botswana,
Cambodia,
Cape Provinces,
Chad,
Chatham Is.,
China South-Central,
China Southeast,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Free State,
India,
Kenya,
Kermadec Is.,
KwaZulu-Natal,
Laos,
Lesotho,
Madagascar,
Mauritania,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nepal,
New South Wales,
New Zealand North,
New Zealand South,
Norfolk Is.,
Northern Provinces,
Pakistan,
Palestine,
Queensland,
Saudi Arabia,
Senegal,
Sinai,
South Australia,
St.Helena,
Sudan,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Tasmania,
Thailand,
Tristan da Cunha,
Uganda,
Victoria,
Vietnam,
West Himalaya,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Alaska,
Albania,
Arizona,
Austria,
Azores,
Baleares,
Belgium,
Bolivia,
British Columbia,
California,
Canary Is.,
Colombia,
Corse,
Denmark,
East Aegean Is.,
Ecuador,
Florida,
France,
Germany,
Great Britain,
Greece,
Guatemala,
Hawaii,
Ireland,
Italy,
Juan Fernández Is.,
Kuril Is.,
Madeira,
Maine,
Maryland,
Massachusetts,
Mauritius,
Mexico Northwest,
Netherlands,
Nevada,
New Brunswick,
New Caledonia,
New Guinea,
Norway,
Nova Scotia,
Oregon,
Paraguay,
Peru,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Québec,
Sakhalin,
Sardegna,
Spain,
Sri Lanka,
Switzerland,
Texas,
Tunisia,
Uruguay,
Washington