Native to:
Alabama,
Alaska,
Algeria,
Amur,
Angola,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Austria,
Azores,
Baleares,
Belgium,
Bolivia,
Botswana,
Brazil South,
British Columbia,
Bulgaria,
Burundi,
Buryatiya,
California,
Cameroon,
Canary Is.,
Cape Provinces,
Central African Repu,
Central European Rus,
Chad,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
China South-Central,
Colombia,
Colorado,
Connecticut,
Corse,
Costa Rica,
Crozet Is.,
Cyprus,
Czechoslovakia,
Denmark,
Dominican Republic,
East Aegean Is.,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Eritrea,
Ethiopia,
Falkland Is.,
Finland,
France,
Free State,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Gulf of Guinea Is.,
Gulf States,
Iceland,
Idaho,
India,
Inner Mongolia,
Iran,
Iraq,
Italy,
Japan,
Kansas,
Kazakhstan,
Kenya,
Kerguelen,
Khabarovsk,
Korea,
Kriti,
Kuwait,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Louisiana,
Macquarie Is.,
Madagascar,
Madeira,
Maine,
Malawi,
Manchuria,
Marion-Prince Edward,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Minnesota,
Mississippi,
Mongolia,
Montana,
Morocco,
Mozambique,
Namibia,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nigeria,
Norfolk Is.,
North European Russi,
Northern Provinces,
Northern Territory,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Oklahoma,
Oman,
Ontario,
Oregon,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Peru,
Portugal,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Rwanda,
Sakhalin,
Sardegna,
Saskatchewan,
Saudi Arabia,
Selvagens,
Sicilia,
Socotra,
Somalia,
South Australia,
South Carolina,
South European Russi,
Spain,
Sudan,
Swaziland,
Sweden,
Tadzhikistan,
Taiwan,
Tanzania,
Tasmania,
Texas,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Uganda,
Ukraine,
Uruguay,
Utah,
Venezuela,
Vermont,
Victoria,
Washington,
West Himalaya,
Western Australia,
Western Sahara,
Wyoming,
Xinjiang,
Yemen,
Yugoslavia,
Yukon,
Zambia,
Zaïre,
Zimbabwe
Extinct in:
Baltic States,
Delaware,
Poland
Introduced into:
China North-Central,
Hawaii,
Ireland,
Juan Fernández Is.,
St.Helena,
Tristan da Cunha