Native to:
Albania,
Algeria,
Austria,
Belgium,
Bulgaria,
Czechoslovakia,
France,
Germany,
Greece,
Hungary,
Iran,
Italy,
Kriti,
Morocco,
Netherlands,
Poland,
Romania,
Spain,
Switzerland,
Transcaucasus,
Turkey,
Ukraine,
Yugoslavia
Introduced into:
Baltic States,
Belarus,
Central European Russia,
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 Russia,
Ohio,
Ontario,
Pennsylvania,
Québec,
South Dakota,
South European Russia,
Sweden,
Tadzhikistan,
Turkey-in-Europe,
Vermont,
West Himalaya,
West Virginia,
Wisconsin,
Xinjiang