Native to:
Albania,
Algeria,
Altay,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Connecticut,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Hungary,
Iceland,
Illinois,
Indiana,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Krasnoyarsk,
Kriti,
Krym,
Labrador,
Maine,
Massachusetts,
Michigan,
Morocco,
Netherlands,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North European Russi,
Northwest European R,
Norway,
Nunavut,
Ohio,
Ontario,
Pennsylvania,
Poland,
Portugal,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tennessee,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Vermont,
West Siberia,
West Virginia,
Wisconsin,
Yakutskiya,
Yugoslavia
Introduced into:
Argentina Northeast,
Argentina Northwest,
Argentina South,
British Columbia,
Kamchatka,
Montana,
New South Wales,
New Zealand North,
New Zealand South,
Oregon,
South Australia,
Tasmania,
Victoria,
Washington