Native to:
Albania,
Austria,
Baltic States,
Belarus,
Bulgaria,
Central European Rus,
Czechoslovakia,
East European Russia,
Finland,
France,
Germany,
Greece,
Hungary,
Italy,
North European Russi,
Northwest European R,
Norway,
Poland,
Romania,
Sweden,
Switzerland,
Turkey-in-Europe,
Ukraine,
Yugoslavia
Introduced into:
Belgium,
Connecticut,
Denmark,
Føroyar,
Great Britain,
Iceland,
Illinois,
Ireland,
Kentucky,
Korea,
Maine,
Massachusetts,
Michigan,
Minnesota,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New South Wales,
New York,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Québec,
Rhode I.,
South European Russi,
Spain,
Vermont,
Virginia,
West Virginia,
Wisconsin