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Africa East Tropical Africa Kenya Tanzania Uganda Macaronesia Canary Is. Madeira Northeast Tropical Africa Eritrea Ethiopia Sudan Northern Africa Algeria Libya Morocco Tunisia West-Central Tropical Africa Rwanda Zaire Asia-Temperate Arabian Peninsula Gulf States Oman Saudi Arabia Yemen Caucasus North Caucasus Transcaucasus China China North-Central China South-Central China Southeast Inner Mongolia Manchuria Qinghai Tibet Eastern Asia Japan Korea Nansei-shoto Ogasawara-shoto Taiwan Middle Asia Kazakhstan Kirgizistan Tadzhikistan Turkmenistan Uzbekistan Western Asia Afghanistan Cyprus East Aegean Is. Iran Iraq Lebanon-Syria Palestine Turkey Asia-Tropical Indian Subcontinent Assam East Himalaya India Nepal Pakistan West Himalaya Indo-China Myanmar Thailand Vietnam Malesia Philippines 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 Iceland Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Kriti Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe Baleares Corse France Portugal Sardegna Spain Northern America Eastern Canada Labrador Ontario Québec Mexico Mexico Central Mexico Gulf Mexico Northeast Mexico Northwest Mexico Southeast Mexico Southwest North-Central U.S.A. Illinois Iowa Kansas Missouri Nebraska Oklahoma South Dakota Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan 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 Texas Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Georgia Kentucky Louisiana Maryland Mississippi North Carolina South Carolina Tennessee Virginia Southwestern U.S.A. Arizona California Nevada Utah Subarctic America Alaska Greenland Yukon Western Canada Alberta British Columbia Saskatchewan Southern America Central America El Salvador Guatemala Southern South America Argentina Northeast Argentina Northwest Western South America Bolivia Peru Introduced into Antarctic Subantarctic Islands Falkland Is. Asia-Temperate Russian Far East Primorye Siberia West Siberia Australasia Australia Tasmania New Zealand New Zealand South Northern America Eastern Canada New Brunswick Newfoundland Nova Scotia Prince Edward I. North-Central U.S.A. Minnesota Wisconsin Northeastern U.S.A. New Hampshire Southeastern U.S.A. Florida Western Canada Manitoba Southern America Brazil Brazil South Caribbean Cuba Dominican Republic Central America Costa Rica Northern South America Venezuela Southern South America Argentina South Chile Central Chile South Western South America Colombia