Native to:
Altay,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Central European Russia,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Krasnoyarsk,
Netherlands,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Poland,
Portugal,
Romania,
Saudi Arabia,
Sicilia,
South European Russia,
Spain,
Sweden,
Switzerland,
Ukraine,
West Siberia,
Yugoslavia
Introduced into:
Alaska,
Amur,
Connecticut,
Greenland,
Idaho,
Iowa,
Kamchatka,
Khabarovsk,
Kuril Is.,
Labrador,
Maine,
Maryland,
Massachusetts,
Michigan,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
Nova Scotia,
Ohio,
Oregon,
Pennsylvania,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Vermont,
Washington,
West Virginia