Native to:
Alaska,
Albania,
Alberta,
Aleutian Is.,
Arizona,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
California,
Central European Russia,
Colorado,
Connecticut,
Czechoslovakia,
East European Russia,
France,
Georgia,
Germany,
Greece,
Hungary,
Idaho,
Illinois,
Indiana,
Iowa,
Italy,
Kentucky,
Labrador,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
Netherlands,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Poland,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Saskatchewan,
South Dakota,
South European Russia,
Spain,
Switzerland,
Tennessee,
Ukraine,
Utah,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
Yugoslavia,
Yukon
Introduced into:
Bolivia,
Denmark,
Finland,
Great Britain,
Ireland,
Kazakhstan,
New Zealand South,
Norway,
Sweden