Northern America Eastern Canada New Brunswick Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Iowa Kansas Minnesota Missouri Nebraska North Dakota Oklahoma South Dakota Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont West Virginia Northwestern U.S.A. Colorado Idaho Montana Oregon Washington Wyoming South-Central U.S.A. New Mexico Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Florida Georgia Kentucky Maryland Mississippi North Carolina South Carolina Tennessee Virginia Southwestern U.S.A. Utah Western Canada Alberta British Columbia Manitoba Saskatchewan Introduced into Europe Middle Europe Belgium Czechoslovakia Netherlands Northern Europe Denmark Finland Great Britain Norway

Northern America Eastern Canada New Brunswick Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Iowa Kansas Minnesota Missouri Nebraska North Dakota Oklahoma South Dakota Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont West Virginia Northwestern U.S.A. Colorado Idaho Montana Oregon Washington Wyoming South-Central U.S.A. New Mexico Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Florida Georgia Kentucky Maryland Mississippi North Carolina South Carolina Tennessee Virginia Southwestern U.S.A. Utah Western Canada Alberta British Columbia Manitoba Saskatchewan Introduced into Europe Middle Europe Belgium Czechoslovakia Netherlands Northern Europe Denmark Finland Great Britain Norway