Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Arizona,
Austria,
Azores,
Baleares,
Baltic States,
Belarus,
Belgium,
Botswana,
British Columbia,
Bulgaria,
Buryatiya,
Canary Is.,
Cape Provinces,
Central European Rus,
Chad,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
Djibouti,
East Aegean Is.,
East European Russia,
Egypt,
Eritrea,
Ethiopia,
Finland,
France,
Free State,
Germany,
Greece,
Gulf States,
Hungary,
Idaho,
Inner Mongolia,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kazakhstan,
Kenya,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuwait,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madeira,
Magadan,
Manchuria,
Mauritania,
Mongolia,
Montana,
Morocco,
Namibia,
Nepal,
Netherlands,
Nevada,
New Mexico,
Niger,
North Caucasus,
North European Russi,
Northern Provinces,
Northwest European R,
Norway,
Oman,
Oregon,
Pakistan,
Palestine,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sardegna,
Saudi Arabia,
Selvagens,
Sicilia,
Sinai,
Socotra,
Somalia,
South European Russi,
Spain,
Sudan,
Sweden,
Switzerland,
Tadzhikistan,
Tanzania,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Utah,
Uzbekistan,
Washington,
West Himalaya,
West Siberia,
Western Sahara,
Wyoming,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Aleutian Is.,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arkansas,
Assam,
Bermuda,
Bolivia,
Brazil South,
Brazil Southeast,
California,
Chile Central,
Chile North,
Chile South,
Colombia,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
Ecuador,
Falkland Is.,
Florida,
Georgia,
Great Britain,
Greenland,
Haiti,
Hawaii,
Iceland,
Illinois,
India,
Indiana,
Iowa,
Ireland,
Jamaica,
Kansas,
Kentucky,
Khabarovsk,
Kuril Is.,
Leeward Is.,
Louisiana,
Maine,
Manitoba,
Marquesas,
Maryland,
Massachusetts,
Mauritius,
Mexican Pacific Is.,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Nansei-shoto,
Nebraska,
New Brunswick,
New Caledonia,
New Hampshire,
New Jersey,
New South Wales,
New York,
New Zealand North,
Newfoundland,
Norfolk Is.,
North Carolina,
North Dakota,
Northern Territory,
Northwest Territorie,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Pennsylvania,
Peru,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
Taiwan,
Tasmania,
Tennessee,
Texas,
Uruguay,
Venezuela,
Vermont,
Victoria,
Virginia,
West Virginia,
Western Australia,
Wisconsin,
Yukon,
Zambia,
Zimbabwe