Native to:
Albania,
Austria,
France,
Germany,
Italy,
Netherlands,
Spain,
Switzerland,
Yugoslavia
Introduced into:
Alabama,
Alberta,
Bahamas,
Baltic States,
Belarus,
Belgium,
British Columbia,
California,
Central European Rus,
Connecticut,
Czechoslovakia,
Denmark,
East European Russia,
Ecuador,
Florida,
Great Britain,
Greece,
Hungary,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Japan,
Kansas,
Kentucky,
Korea,
Krym,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
New Brunswick,
New Hampshire,
New York,
Newfoundland,
North Dakota,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Poland,
Primorye,
Prince Edward I.,
Québec,
Romania,
Saskatchewan,
South Dakota,
South European Russi,
Sweden,
Texas,
Ukraine,
Vermont,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming