Native to:
Albania,
Algeria,
Austria,
Belgium,
Bulgaria,
Czechoslovakia,
France,
Germany,
Greece,
Hungary,
Iran,
Italy,
Morocco,
Netherlands,
Poland,
Romania,
Spain,
Switzerland,
Transcaucasus,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
Baltic States,
Belarus,
Central European Rus,
China North-Central,
Connecticut,
Delaware,
Denmark,
East European Russia,
Falkland Is.,
Finland,
Great Britain,
Iceland,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Japan,
Kentucky,
Korea,
Kuril Is.,
Labrador,
Maine,
Manchuria,
Maryland,
Massachusetts,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Dakota,
North European Russi,
Ohio,
Ontario,
Pennsylvania,
Québec,
South Dakota,
South European Russi,
Sweden,
Tadzhikistan,
Turkey-in-Europe,
Vermont,
West Himalaya,
West Virginia,
Wisconsin,
Xinjiang