Native to:
Albania,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Corse,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
Ireland,
Italy,
Morocco,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Ukraine,
Yugoslavia
Introduced into:
Arkansas,
California,
Chile Central,
Chile South,
Colombia,
Ecuador,
Hawaii,
Idaho,
Irkutsk,
Labrador,
Massachusetts,
Mexico Central,
Mexico Northeast,
Mexico Southwest,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Nova Scotia,
Pennsylvania,
Peru,
South Dakota,
Tasmania,
Tennessee,
Tuva