Native to:
Afghanistan,
Alaska,
Albania,
Algeria,
Altay,
Amur,
Angola,
Assam,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Botswana,
Bulgaria,
Buryatiya,
Cape Provinces,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Finland,
France,
Free State,
Germany,
Great Britain,
Greece,
Gulf States,
Hainan,
Hungary,
India,
Inner Mongolia,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Magadan,
Manchuria,
Mongolia,
Morocco,
Mozambique,
Namibia,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
North European Russia,
Northern Provinces,
Northwest European Russia,
Norway,
Oman,
Pakistan,
Palestine,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South European Russia,
Spain,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tanzania,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
Vietnam,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia,
Yukon,
Zambia,
Zaïre
Introduced into:
Alabama,
Alberta,
Argentina South,
Arizona,
Arkansas,
Bangladesh,
Bolivia,
British Columbia,
California,
Chile Central,
Colorado,
Connecticut,
Delaware,
Florida,
Georgia,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Kansas,
Kentucky,
Kermadec Is.,
Louisiana,
Maine,
Manitoba,
Marianas,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Peru,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
South Dakota,
Tasmania,
Tennessee,
Texas,
Trinidad-Tobago,
Utah,
Venezuela,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming