Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Amur,
Assam,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
China North-Central,
China South-Central,
Chita,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Finland,
France,
Germany,
Greece,
Hungary,
India,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Krasnoyarsk,
Krym,
Kuril Is.,
Laos,
Mongolia,
Myanmar,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Pakistan,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
British Columbia,
Caroline Is.,
Christmas I.,
Colombia,
Connecticut,
Costa Rica,
Cuba,
Delaware,
District of Columbia,
Fiji,
Florida,
Georgia,
Great Britain,
Greenland,
Guatemala,
Haiti,
Hawaii,
Honduras,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Jawa,
Kansas,
Kentucky,
Libya,
Louisiana,
Magadan,
Maine,
Maldives,
Manitoba,
Marianas,
Maryland,
Massachusetts,
Mexico Southeast,
Michigan,
Minnesota,
Missouri,
Montana,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Carolina,
Tennessee,
Vermont,
Vietnam,
Virginia,
Washington,
West Virginia,
Wisconsin