Northern America Mexico Mexico Central Mexico Northeast Mexico Northwest Mexico Southwest Northwestern U.S.A. Colorado Idaho Montana Oregon Washington Wyoming South-Central U.S.A. New Mexico Texas Southwestern U.S.A. Arizona California Nevada Utah Subarctic America Alaska Western Canada Alberta British Columbia Introduced into Asia-Temperate Western Asia Turkey Europe Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Ireland Norway Sweden Southeastern Europe Bulgaria Greece Italy Romania Yugoslavia Southwestern Europe France Portugal Spain Northern America Northeastern U.S.A. New York

Northern America Mexico Mexico Central Mexico Northeast Mexico Northwest Mexico Southwest Northwestern U.S.A. Colorado Idaho Montana Oregon Washington Wyoming South-Central U.S.A. New Mexico Texas Southwestern U.S.A. Arizona California Nevada Utah Subarctic America Alaska Western Canada Alberta British Columbia Introduced into Asia-Temperate Western Asia Turkey Europe Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Ireland Norway Sweden Southeastern Europe Bulgaria Greece Italy Romania Yugoslavia Southwestern Europe France Portugal Spain Northern America Northeastern U.S.A. New York