Native to:
Albania,
Austria,
Baltic States,
Belarus,
Bulgaria,
Central European Russia,
Connecticut,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
East European Russia,
Finland,
France,
Germany,
Hungary,
Illinois,
Indiana,
Iowa,
Italy,
Kentucky,
Labrador,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Carolina,
North Dakota,
North European Russia,
Norway,
Nova Scotia,
Ohio,
Ontario,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
South Dakota,
Spain,
Sweden,
Switzerland,
Tennessee,
Ukraine,
Vermont,
Virginia,
West Virginia,
Wisconsin,
Yugoslavia
Extinct in:
Belgium,
Great Britain,
Netherlands