Native to:
Altay,
Amur,
Assam,
Bangladesh,
Buryatiya,
China North-Central,
Chita,
East Himalaya,
Irkutsk,
Kazakhstan,
Kirgizstan,
Korea,
Krasnoyarsk,
Manchuria,
Nepal,
Pakistan,
Primorye,
Tuva,
Uzbekistan,
West Himalaya,
West Siberia,
Yakutskiya
Introduced into:
Alabama,
Albania,
Andaman Is.,
Arkansas,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
California,
Cape Provinces,
Central European Rus,
Colorado,
Connecticut,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East European Russia,
Finland,
France,
Free State,
Føroyar,
Georgia,
Germany,
Great Britain,
Hungary,
Iceland,
Illinois,
Indiana,
Iowa,
Ireland,
Italy,
Jawa,
Kansas,
Kentucky,
Krym,
Louisiana,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Nebraska,
Netherlands,
New Brunswick,
New Guinea,
New Hampshire,
New Jersey,
New York,
North Carolina,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Poland,
Québec,
Rhode I.,
Romania,
Sicilia,
South Carolina,
South European Russi,
Svalbard,
Sweden,
Switzerland,
Tennessee,
Texas,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Ukraine,
Vermont,
Virginia,
West Virginia,
Wisconsin,
Yugoslavia