Native to:
Afghanistan,
Albania,
Algeria,
Altay,
Amur,
Assam,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Rus,
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 Russi,
Northwest European R,
Norway,
Pakistan,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
South European Russi,
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,
Cape Provinces,
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,
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