Reference: Brummitt, R.K. (2001) TDGW - World Geographical Scheme for Recording Plant Distributions, 2nd EditionEurope
Northern Europe
Denmark, Finland, Great Britain, Ireland, Norway, Sweden. Middle Europe
Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland, Switzerland. Southwestern Europe
France, Portugal, Sardegna, Spain. Southeastern Europe
Bulgaria, Greece, Italy, Romania, Turkey-in-Europe, Yugoslavia. Eastern Europe
Belarus, Baltic States, Central European Russia, East European Russia, North European Russia, South European Russia, Northwest European Russia, Ukraine. Africa
West Tropical Africa
Burkina, Gambia, Ghana, Guinea-Bissau, Ivory Coast, Mali, Nigeria, Niger, Senegal. West-Central Tropical Africa
Northeast Tropical Africa
Western Indian Ocean
Asia-Temperate
Siberia
Altay, Buryatiya, Chita, Irkutsk Krasnoyarsk, Tuva, West Siberia, Yakutiya. Russian Far East
Amur, Kamchatka, Khabarovsk, Magadan, Primorye, Sakhalin. Middle Asia
Kazakhstan, Kirgizstan, Tadzhikistan, Uzbekistan. Caucasus
North Caucasus, Transcaucasus. Western Asia
Afghanistan, Iran, Iraq, Turkey. China
China South-Central, Hainan, Inner Mongolia, Manchuria, China North-Central, China Southeast, Tibet, Xinjiang. Mongolia
Eastern Asia
Japan, Korea, Nansei-shoto, Taiwan. Asia-Tropical
Indian Subcontinent
Assam, Bangladesh, East Himalaya, India, Nepal, Pakistan, West Himalaya. Indo-China
Cambodia, Laos, Myanmar, Nicobar Islands, Thailand, Vietnam, Jawa, Peninsular Malaysia, Philippines, Sulawesi, Sumatera. Northern America Subarctic America
Alaska, Northwest Territories, Yukon. Western Canada
Alberta, British Columbia, Manitoba, Saskatchewan. Eastern Canada
Labrador, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Isle, Québec. Northwestern U.S.A.
Colorado, Idaho, Montana, Oregon, Washington, Wyoming. North-Central U.S.A.
Illinois, Iowa, Kansas, Minnesota, Missouri, North Dakota, Nebraska, Oklahoma, South Dakota, Wisconsin. Northeastern U.S.A.
Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Islands, Vermont, West Virginia. Southwestern U.S.A.
Arizona, California, Nevada, Utah. South-Central U.S.A.
Southeastern U.S.A.
Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, District of Columbia. Mexico Mexico Central, Mexico Northeast, Mexico Gulf, Mexico Northwest, Mexico Southwest, Mexico Southeast. Southern America Central America Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama. Caribbean Bahamas, Cayman Islands, Cuba, Dominican Republic, Haiti, Jamaica, Puerto Rico, Trinidad-Tobago, Windward Islands. Northern South America French Guiana, Guyana, Suriname, Venezuela. Western South America Bolivia, Colombia, Ecuador, Peru. Brazil Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil North, Brazil South. Southern South America Argentina Northeast, Argentina Northwest, Chile Central, Chile South, Paraguay, Uruguay. 
Native distribution areas
Selected Weblinks
