Africa East Tropical Africa Kenya Tanzania Uganda Macaronesia Madeira Northeast Tropical Africa Ethiopia Northern Africa Algeria Morocco West-Central Tropical Africa Burundi Congo Rwanda Zaire Antarctic Subantarctic Islands Falkland Is. Asia-Temperate Caucasus North Caucasus Transcaucasus Eastern Asia Japan Taiwan Russian Far East Kamchatka Khabarovsk Kuril Is. Magadan Sakhalin Siberia Krasnoyarsk West Siberia Western Asia Iran Turkey Asia-Tropical Indian Subcontinent Nepal West Himalaya Malesia Borneo Philippines Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia North European Russia Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Iceland Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe Corse France Portugal Sardegna Spain Northern America Eastern Canada Labrador New Brunswick Newfoundland Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Minnesota Missouri North Dakota Oklahoma Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Vermont West Virginia 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 Subarctic America Greenland Southern America Southern South America Argentina Northeast Argentina Northwest Argentina South Chile Central Chile North Chile South Uruguay Introduced into Africa Southern Africa Cape Provinces Antarctic Subantarctic Islands South Georgia Tristan da Cunha Australasia New Zealand New Zealand North New Zealand South Northern America Mexico Mexico Central Northeastern U.S.A. Rhode I. Northwestern U.S.A. Colorado Idaho Oregon Washington Wyoming Southwestern U.S.A. California Subarctic America Alaska Aleutian Is. Yukon Western Canada British Columbia Pacific North-Central Pacific Hawaii Southern America Brazil Brazil South Brazil West-Central Central America Costa Rica Western South America Ecuador

Africa East Tropical Africa Kenya Tanzania Uganda Macaronesia Madeira Northeast Tropical Africa Ethiopia Northern Africa Algeria Morocco West-Central Tropical Africa Burundi Congo Rwanda Zaire Antarctic Subantarctic Islands Falkland Is. Asia-Temperate Caucasus North Caucasus Transcaucasus Eastern Asia Japan Taiwan Russian Far East Kamchatka Khabarovsk Kuril Is. Magadan Sakhalin Siberia Krasnoyarsk West Siberia Western Asia Iran Turkey Asia-Tropical Indian Subcontinent Nepal West Himalaya Malesia Borneo Philippines Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia North European Russia Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Denmark Finland Føroyar Great Britain Iceland Ireland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe Corse France Portugal Sardegna Spain Northern America Eastern Canada Labrador New Brunswick Newfoundland Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Minnesota Missouri North Dakota Oklahoma Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Vermont West Virginia 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 Subarctic America Greenland Southern America Southern South America Argentina Northeast Argentina Northwest Argentina South Chile Central Chile North Chile South Uruguay Introduced into Africa Southern Africa Cape Provinces Antarctic Subantarctic Islands South Georgia Tristan da Cunha Australasia New Zealand New Zealand North New Zealand South Northern America Mexico Mexico Central Northeastern U.S.A. Rhode I. Northwestern U.S.A. Colorado Idaho Oregon Washington Wyoming Southwestern U.S.A. California Subarctic America Alaska Aleutian Is. Yukon Western Canada British Columbia Pacific North-Central Pacific Hawaii Southern America Brazil Brazil South Brazil West-Central Central America Costa Rica Western South America Ecuador