Native to:
Afghanistan,
Altay,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Chad,
China North-Central,
China South-Central,
China Southeast,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Germany,
Greece,
Hungary,
Iran,
Iraq,
Irkutsk,
Italy,
Kazakhstan,
Kirgizstan,
Krasnoyarsk,
Krym,
Lebanon-Syria,
Mongolia,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Poland,
Romania,
South European Russi,
Sweden,
Tadzhikistan,
Tibet,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Siberia,
Xinjiang,
Yugoslavia
Introduced into:
Alberta,
Amur,
Bangladesh,
British Columbia,
Canary Is.,
Cape Provinces,
Colorado,
Dominican Republic,
Ecuador,
Finland,
France,
Free State,
Great Britain,
Haiti,
Illinois,
Iowa,
Ireland,
Japan,
Kamchatka,
Kansas,
Khabarovsk,
Korea,
Lesotho,
Magadan,
Manitoba,
Massachusetts,
Minnesota,
Missouri,
Montana,
Namibia,
Nebraska,
New Brunswick,
New York,
North Dakota,
Northern Provinces,
Nova Scotia,
Ogasawara-shoto,
Ontario,
Oregon,
Pennsylvania,
Primorye,
Prince Edward I.,
Québec,
Saskatchewan,
South Dakota,
Virginia,
Wisconsin,
Wyoming