Native to:
Afghanistan,
Albania,
Altay,
Assam,
Austria,
Belgium,
Borneo,
Bulgaria,
China North-Central,
China South-Central,
China Southeast,
Corse,
Czechoslovakia,
East Himalaya,
France,
Georgia,
Germany,
Greece,
Hainan,
Hungary,
India,
Iran,
Iraq,
Italy,
Japan,
Kazakhstan,
Korea,
Kuril Is.,
Manchuria,
Myanmar,
Nansei-shoto,
Nepal,
Netherlands,
North Caucasus,
Pakistan,
Philippines,
Poland,
Primorye,
Qinghai,
Romania,
Spain,
Sri Lanka,
Switzerland,
Taiwan,
Tibet,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Ukraine,
Vietnam,
West Himalaya,
Xinjiang,
Yugoslavia
Introduced into:
Inner Mongolia,
Laos,
New South Wales,
Northern Territory,
Queensland,
South Australia,
Tasmania,
Victoria,
Western Australia