Reference: Brummitt, R.K. (2001) TDGW - World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Africa
West Tropical Africa
Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sierre Leone.
West-Central Tropical Africa
Central African Republic, Cameroon, Congo, Equatorial Guinea, Gabon, Gulf of Guinea Islands, Zaïre.
Northeast Tropical Africa
East Tropical Africa
South Tropical Africa
Angola, Malawi, Mozambique, Zambia, Zimbabwe.
Southern Africa
Western Indian Ocean
Comoros, Madagascar, Seychelles.
Asia-Temperate
China
China South-Central, China Southeast.
Eastern Asia
Asia-Tropical
Indian Subcontinent
Assam, Bangladesh, India, Sri Lanka.
Indo-China
Andaman Islands, Cambodia, Laos, Myanmar, Nicobar Islands, Thailand, Vietnam.
Malesia
Borneo, Jawa, Lesser Sunda Islands, Peninsular Malaysia, Maluku, Philippines, Sulawesi, Sumatera.
Papuasia
Northern America
Southeastern U.S.A.
Mexico
Mexico Central, Mexico Gulf, 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, Leeward Islands, 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, Paraguay.