Native to:
Algeria,
Austria,
Belgium,
Central European Rus,
Czechoslovakia,
Denmark,
Finland,
France,
Germany,
Great Britain,
Hungary,
Ireland,
Italy,
Morocco,
Netherlands,
North Caucasus,
Poland,
Romania,
Spain,
Sweden,
Switzerland,
Ukraine,
Yugoslavia
Introduced into:
Alberta,
Argentina South,
British Columbia,
Chile South,
Connecticut,
Costa Rica,
District of Columbia,
Illinois,
Indiana,
Maine,
Maryland,
Massachusetts,
Michigan,
Mississippi,
Montana,
New Brunswick,
New Hampshire,
New Jersey,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
South Carolina,
Tennessee,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin