Native to:
Altay,
Amur,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Russia,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Ireland,
Italy,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Krasnoyarsk,
Krym,
Kuril Is.,
Magadan,
Mongolia,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Oman,
Poland,
Primorye,
Romania,
Sakhalin,
Sardegna,
Sicilia,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Siberia,
Yugoslavia
Introduced into:
Alaska,
Alberta,
Assam,
British Columbia,
California,
Chatham Is.,
Colorado,
Connecticut,
Delaware,
Fiji,
Guatemala,
Idaho,
Illinois,
India,
Indiana,
Iowa,
Japan,
Jawa,
Kentucky,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Dakota,
Northwest Territories,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Dakota,
Utah,
Vermont,
Vietnam,
Washington,
Wisconsin,
Wyoming