Asia-Temperate Caucasus North Caucasus Transcaucasus Western Asia East Aegean Is. Turkey Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia Krym North European Russia Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Yugoslavia Southwestern Europe Corse France Portugal Sardegna Spain Introduced into Africa Macaronesia Azores Europe Southeastern Europe Kriti Northern America Eastern Canada Newfoundland North-Central U.S.A. Illinois Northeastern U.S.A. New York Vermont Northwestern U.S.A. Oregon Washington Southeastern U.S.A. Virginia Western Canada British Columbia

Asia-Temperate Caucasus North Caucasus Transcaucasus Western Asia East Aegean Is. Turkey Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia Krym North European Russia Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Yugoslavia Southwestern Europe Corse France Portugal Sardegna Spain Introduced into Africa Macaronesia Azores Europe Southeastern Europe Kriti Northern America Eastern Canada Newfoundland North-Central U.S.A. Illinois Northeastern U.S.A. New York Vermont Northwestern U.S.A. Oregon Washington Southeastern U.S.A. Virginia Western Canada British Columbia