Native to:
Afghanistan,
Amur,
Bulgaria,
China North-Central,
China South-Central,
China Southeast,
Greece,
Inner Mongolia,
Japan,
Khabarovsk,
Korea,
Kuril Is.,
Manchuria,
Nepal,
Pakistan,
Primorye,
Qinghai,
Romania,
Tibet,
Ukraine,
West Himalaya,
Yugoslavia
Introduced into:
Albania,
Argentina South,
Arizona,
Arkansas,
Austria,
Belgium,
British Columbia,
Central European Rus,
Colorado,
Connecticut,
Czechoslovakia,
District of Columbia,
East European Russia,
France,
Germany,
Great Britain,
Hungary,
Illinois,
Indiana,
Iowa,
Ireland,
Italy,
Kansas,
Kentucky,
Krym,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
North Carolina,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Dakota,
South European Russi,
Spain,
Switzerland,
Tennessee,
Utah,
Vermont,
Virginia,
West Virginia,
Wisconsin