Native to:
Afghanistan,
Albania,
Altay,
Amur,
Angola,
Assam,
Benin,
Bulgaria,
Cameroon,
China North-Central,
China South-Central,
China Southeast,
Congo,
East Himalaya,
Ethiopia,
Greece,
Guinea,
Inner Mongolia,
Iran,
Iraq,
Italy,
Japan,
Kazakhstan,
Kenya,
Khabarovsk,
Kirgizstan,
Korea,
Kriti,
Krym,
Kuril Is.,
Laos,
Madagascar,
Malawi,
Manchuria,
Mongolia,
Mozambique,
Myanmar,
Nepal,
North Caucasus,
Northern Provinces,
Pakistan,
Primorye,
Qinghai,
Rwanda,
South European Russi,
Tadzhikistan,
Taiwan,
Tanzania,
Tibet,
Togo,
Transcaucasus,
Turkey,
Turkmenistan,
Uganda,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Buryatiya,
California,
Central European Rus,
Chita,
Connecticut,
Czechoslovakia,
Delaware,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Gulf States,
Hainan,
Hungary,
Illinois,
India,
Indiana,
Iowa,
Ireland,
Irkutsk,
Kentucky,
Krasnoyarsk,
Kuwait,
Lebanon-Syria,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
North Carolina,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Oman,
Ontario,
Oregon,
Palestine,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Saudi Arabia,
Sinai,
Spain,
Sweden,
Switzerland,
Tennessee,
Turkey-in-Europe,
Tuva,
Utah,
Vermont,
Vietnam,
Virginia,
Washington,
Wisconsin,
Yemen