Africa Northern Africa Algeria Asia-Temperate Caucasus North Caucasus Transcaucasus China China North-Central China South-Central China Southeast Inner Mongolia Manchuria Tibet Xinjiang Eastern Asia Japan Korea Middle Asia Kazakhstan Uzbekistan Mongolia Mongolia Russian Far East Amur Khabarovsk Primorye Siberia Altay Buryatiya Chita Irkutsk Krasnoyarsk Tuva West Siberia Yakutskiya Western Asia Iran Iraq Asia-Tropical Indian Subcontinent West Himalaya Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia North European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Northern Europe Great Britain Southeastern Europe Albania Bulgaria Greece Italy Romania Turkey-in-Europe Yugoslavia Southwestern Europe France Portugal Sardegna Spain Introduced into Europe Middle Europe Switzerland Northern Europe Denmark Sweden Northern America Eastern Canada Newfoundland Ontario Québec North-Central U.S.A. Illinois Missouri Oklahoma Northeastern U.S.A. Connecticut Indiana Masachusettes New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont Northwestern U.S.A. Washington South-Central U.S.A. Texas Southeastern U.S.A. Arkansas Delaware District of Columbia Florida Kentucky Louisiana Maryland Mississippi Southwestern U.S.A. Arizona California

Africa Northern Africa Algeria Asia-Temperate Caucasus North Caucasus Transcaucasus China China North-Central China South-Central China Southeast Inner Mongolia Manchuria Tibet Xinjiang Eastern Asia Japan Korea Middle Asia Kazakhstan Uzbekistan Mongolia Mongolia Russian Far East Amur Khabarovsk Primorye Siberia Altay Buryatiya Chita Irkutsk Krasnoyarsk Tuva West Siberia Yakutskiya Western Asia Iran Iraq Asia-Tropical Indian Subcontinent West Himalaya Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia North European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Northern Europe Great Britain Southeastern Europe Albania Bulgaria Greece Italy Romania Turkey-in-Europe Yugoslavia Southwestern Europe France Portugal Sardegna Spain Introduced into Europe Middle Europe Switzerland Northern Europe Denmark Sweden Northern America Eastern Canada Newfoundland Ontario Québec North-Central U.S.A. Illinois Missouri Oklahoma Northeastern U.S.A. Connecticut Indiana Masachusettes New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont Northwestern U.S.A. Washington South-Central U.S.A. Texas Southeastern U.S.A. Arkansas Delaware District of Columbia Florida Kentucky Louisiana Maryland Mississippi Southwestern U.S.A. Arizona California