Africa Northern Africa Algeria Tunisia Asia-Temperate Caucasus North Caucasus Transcaucasus Western Asia Iran 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 Great Britain Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe France Portugal Spain Introduced into Asia-Temperate Siberia Irkutsk Australasia Australia Tasmania New Zealand New Zealand North New Zealand South Northern America Eastern Canada Newfoundland Nova Scotia Ontario Québec North-Central U.S.A. Illinois Iowa Kansas 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. Oregon Washington South-Central U.S.A. Texas Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Florida Georgia Kentucky Louisiana Maryland Mississippi North Carolina South Carolina Tennessee Virginia Southwestern U.S.A. Utah Western Canada British Columbia Southern America Northern South America Venezuela

Africa Northern Africa Algeria Tunisia Asia-Temperate Caucasus North Caucasus Transcaucasus Western Asia Iran 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 Great Britain Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe France Portugal Spain Introduced into Asia-Temperate Siberia Irkutsk Australasia Australia Tasmania New Zealand New Zealand North New Zealand South Northern America Eastern Canada Newfoundland Nova Scotia Ontario Québec North-Central U.S.A. Illinois Iowa Kansas 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. Oregon Washington South-Central U.S.A. Texas Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Florida Georgia Kentucky Louisiana Maryland Mississippi North Carolina South Carolina Tennessee Virginia Southwestern U.S.A. Utah Western Canada British Columbia Southern America Northern South America Venezuela