Native to:
Alaska,
Alberta,
Arizona,
British Columbia,
California,
Colorado,
Connecticut,
Delaware,
Idaho,
Illinois,
Iowa,
Kansas,
Kentucky,
Labrador,
Maine,
Manitoba,
Maryland,
Massachusetts,
Mexico Northeast,
Mexico Northwest,
Mexico Southwest,
Michigan,
Minnesota,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Dakota,
Northwest Territorie,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Prince Edward I.,
Québec,
Rhode I.,
Saskatchewan,
South Dakota,
Utah,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
Yukon
Introduced into:
Austria,
Belgium,
Czechoslovakia,
Denmark,
Finland,
Great Britain,
Ireland,
Norway,
Poland,
Sweden,
Switzerland