Doubtfully present in:
Idaho
Native to:
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Central European Rus,
Corse,
Czechoslovakia,
Denmark,
France,
Germany,
Great Britain,
Greece,
Hungary,
Ireland,
Italy,
Netherlands,
Northwest European R,
Norway,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
Spain,
Sweden,
Switzerland,
Ukraine,
Yugoslavia
Introduced into:
Alabama,
Antipodean Is.,
Argentina Northeast,
Argentina South,
Azores,
British Columbia,
California,
Canary Is.,
Cape Provinces,
Chatham Is.,
Chile Central,
Delaware,
Hawaii,
Idaho,
India,
Japan,
Kentucky,
Korea,
KwaZulu-Natal,
Madagascar,
Madeira,
Maryland,
New Jersey,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Northern Provinces,
Oregon,
South Australia,
Tasmania,
Tennessee,
Turkey-in-Europe,
Victoria,
Washington,
West Himalaya