Native to:
Belgium,
France,
Germany,
Great Britain,
Netherlands,
Spain
Introduced into:
Austria,
Baltic States,
British Columbia,
Bulgaria,
Central European Rus,
Colorado,
Connecticut,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
Hungary,
Iceland,
Illinois,
Indiana,
Iowa,
Ireland,
Italy,
Japan,
Kazakhstan,
Korea,
Krym,
Labrador,
Maine,
Manchuria,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Montana,
Myanmar,
New Brunswick,
New Hampshire,
New Jersey,
New York,
North Carolina,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South European Russi,
Sweden,
Switzerland,
Tadzhikistan,
Tennessee,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Uzbekistan,
Vermont,
Virginia,
Washington,
West Himalaya,
West Virginia,
Wisconsin,
Wyoming,
Yugoslavia