Native to:
China North-Central,
China South-Central,
Tibet
Introduced into:
Afghanistan,
Albania,
Alberta,
Altay,
Amur,
Bangladesh,
Belgium,
Buryatiya,
Central European Rus,
China Southeast,
Chita,
Czechoslovakia,
Denmark,
East European Russia,
East Himalaya,
Finland,
France,
Germany,
Great Britain,
Inner Mongolia,
Ireland,
Irkutsk,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Krasnoyarsk,
Magadan,
Maine,
Manchuria,
Massachusetts,
Michigan,
Mongolia,
Myanmar,
Nepal,
Netherlands,
New Brunswick,
New Hampshire,
New York,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ontario,
Pakistan,
Pennsylvania,
Poland,
Primorye,
Qinghai,
Québec,
Rhode I.,
Romania,
Sakhalin,
Saskatchewan,
South European Russi,
Sweden,
Tadzhikistan,
Transcaucasus,
Tuva,
Ukraine,
Vermont,
West Himalaya,
West Siberia,
West Virginia,
Xinjiang,
Yakutskiya,
Yugoslavia