Native to:
Albania,
Algeria,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Russia,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Hungary,
Iceland,
Ireland,
Irkutsk,
Italy,
Massachusetts,
Michigan,
Mongolia,
Morocco,
Netherlands,
New Hampshire,
New York,
Newfoundland,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Nova Scotia,
Ontario,
Poland,
Portugal,
Québec,
Romania,
Sicilia,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Ukraine,
Vermont,
West Siberia,
Yugoslavia
Introduced into:
Chatham Is.,
Costa Rica,
Idaho,
New Zealand North,
New Zealand South,
Oregon,
South Georgia,
Tasmania