- Continental: Europe
- Regional: Southwestern Europe
- Baleares, Corse, France, Portugal, Sardegna, Spain.
- Regional: Southeastern Europe
- Albania, Bulgaria, Greece, Italy, Kriti, Sicilia, Turkey-in-Europe, Yugoslavia.
- Continental: Africa
- Regional: Northern Africa
- Algeria, Egypt, Libya, Morocco, Tunisia.
- Regional: Macaronesia
- Canary Islands, Cape Verde, Madeira.
- Regional: West Tropical Africa
- Benin, Burkina, Ghana, Guinea-Bissau, Guinea, Ivory Coast, Liberia, Mali, Nigeria, Niger, Senegal, Sierra Leone, Togo.
- Regional: West-Central Tropical Africa
- Burundi, Central African Republic, Cameroon, Congo, Equatorial Guinea, Gabon, Gulf of Guinea Islands, Rwanda, Zaire.
- Regional: Northeast Tropical Africa
- Chad, Ethiopia, Socotra, Sudan.
- Regional: East Tropical Africa
- Regional: South Tropical Africa
- Angola, Malawi, Mozambique, Zambia, Zimbabwe.
- Regional: Southern Africa
- Botswana, Cape Provinces, Lesotho, Namibia, KwaZulu-Natal, Free State, Swaziland, Northern Provinces.
- Regional: Western Indian Ocean
- Comoros, Mauritius, Madagascar.
- Continental: Asia-Temperate
- Regional: Middle Asia
- Kazakhstan, Kirgizstan, Turkmenistan, Tadzhikistan, Uzbekistan (introduced).
- Regional: Caucasus
- North Caucasus, Transcaucasus (introduced).
- Regional: Western Asia
- Afghanistan, Cyprus, East Aegean Islands, Iran, Iraq, Lebanon-Syria, Palestine, Sinai, Turkey.
- Regional: Arabian Peninsula
- Kuwait, Oman, Saudi Arabia, Yemen.
- Regional: China
- China South-Central (introduced), Hainan, Inner Mongolia, Manchuria, China North-Central, China Southeast, Tibet, Xinjiang (introduced).
- Regional: Eastern Asia
- Japan, Korea, Nansei-shoto, Ogasawara-shoto, Taiwan (introduced).
- Continental: Asia-Tropical
- Regional: Indian Subcontinent
- Assam, Bangladesh, East Himalaya, India, Nepal, Pakistan, Sri Lanka, West Himalaya (introduced).
- Regional: Indo-China
- Andaman Islands, Cambodia, Laos (introduced), Myanmar, Nicobar Islands, South China Sea (introduced), Thailand, Vietnam.
- Regional: Malesia
- Borneo, Cocos (Keeling) Islands (introduced), Jawa, Lesser Sunda Islands, Malaya, Maluku (introduced), Philippines, Sulawesi (introduced), Sumatera, Christmas Island (introduced).
- Regional: Papuasia
- Bismarck Archipelago (introduced), New Guinea, Solomon Islands.
- Continental: Australasia
- Regional: Australia
- Norfolk Islands (introduced).
- Regional: New Zealand
- Kermadec Islands, New Zealand North (introduced).
- Continental: Pacific
- Regional: Southwestern Pacific
- Fiji, New Caledonia, Samoa, Tonga, Vanuatu, Wallis-Futuna Islands (introduced).
- Regional: Northwestern Pacific
- Caroline Islands, Marianas.
- Continental: Northern America
- Regional: Northwestern U.S.A.
- Regional: Southwestern U.S.A.
- Arizona, California, Nevada, Utah.
- Regional: South-Central U.S.A.
- Regional: Southeastern U.S.A.
- Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, Virginia (introduced).
- Regional: Mexico
- Mexico Gulf, Mexico Southwest, Mexico Southeast.
- Continental: Southern America
- Regional: Central America
- Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama.
- Regional: Caribbean
- Bahamas, Cayman Islands, Cuba, Dominican Republic, Haiti, Jamaica, Leeward Islands, Puerto Rico, Trinidad-Tobago, Windward Islands.
- Regional: Northern South America
- French Guiana, Guyana, Suriname, Venezuela.
- Regional: Western South America
- Bolivia, Colombia, Ecuador, Peru.
- Regional: Brazil
- Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil South.
- Regional: Southern South America
- Argentina Northeast, Argentina South, Argentina Northwest, Chile Central, Chile North, Chile South, Paraguay, Uruguay.
References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
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