Native to:
Albania,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Cyprus,
Czechoslovakia,
Denmark,
East European Russia,
France,
Germany,
Great Britain,
Greece,
Hungary,
Italy,
Japan,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Madeira,
Nepal,
Netherlands,
North Caucasus,
Pakistan,
Poland,
Romania,
Sakhalin,
Sicilia,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Ukraine,
West Himalaya,
Yugoslavia
Introduced into:
Alberta,
Argentina South,
British Columbia,
California,
Cape Provinces,
Connecticut,
Finland,
Free State,
Illinois,
Juan Fernández Is.,
KwaZulu-Natal,
Labrador,
Lesotho,
Maine,
Massachusetts,
Mexico Central,
Michigan,
Minnesota,
Nebraska,
New Brunswick,
New Hampshire,
New Jersey,
New York,
New Zealand North,
Newfoundland,
North Carolina,
Northern Provinces,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Québec,
Rhode I.,
South Dakota,
Swaziland,
Tasmania,
Vermont,
Washington,
Wisconsin,
Wyoming