Native to:
China North-Central,
China Southeast,
Inner Mongolia,
Korea,
Manchuria,
Qinghai
Introduced into:
Afghanistan,
Alabama,
Argentina Northwest,
Arkansas,
Assam,
Bermuda,
California,
Cape Provinces,
Chile Central,
Chile North,
Cuba,
Delaware,
District of Columbia,
Dominican Republic,
East Himalaya,
Fiji,
Florida,
Free State,
Georgia,
Haiti,
Iran,
Iraq,
Japan,
Jawa,
Kentucky,
Kirgizstan,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Louisiana,
Maryland,
Mexico Central,
North Carolina,
North Caucasus,
Northern Provinces,
Pakistan,
Puerto Rico,
South Carolina,
Tadzhikistan,
Tennessee,
Thailand,
Transcaucasus,
Tristan da Cunha,
Tubuai Is.,
Turkmenistan,
Uzbekistan,
Vietnam,
Virginia,
West Himalaya,
Zimbabwe