Native to:
Albania,
Alberta,
Algeria,
Altay,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Canary Is.,
Central European Rus,
China North-Central,
Connecticut,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Inner Mongolia,
Ireland,
Italy,
Japan,
Kazakhstan,
Kirgizstan,
Krym,
Lebanon-Syria,
Maine,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Morocco,
Netherlands,
New Brunswick,
New York,
New Zealand South,
Newfoundland,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Ohio,
Ontario,
Palestine,
Pennsylvania,
Philippines,
Poland,
Portugal,
Québec,
Romania,
Sicilia,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Vermont,
West Himalaya,
West Siberia,
Wisconsin,
Yakutskiya,
Yugoslavia