Gentianaceae is a family of flowering plants of 103 genera and about 1600 species.
Combretum, the bushwillows or combretums, make up the type genus of the family Combretaceae. The genus comprises about 272 species of trees and shrubs, most of which are native to tropical and southern Africa, about 5 to Madagascar, but there are others that are native to tropical Asia, New Guinea and the Bismarck Archipelago, Australia, and tropical America. Though somewhat reminiscent of willows (Salix) in their habitus, they are not particularly close relatives of these.
Olea is a genus of about 40 species in the family Oleaceae, native to warm temperate and tropical regions of the Middle East, southern Europe, Africa, southern Asia, and Australasia. They are evergreen trees and shrubs, with small, opposite, entire leaves. The fruit is a drupe. Leaves of Olea contain trichosclereids.
Strychnos is a genus of flowering plants, belonging to the family Loganiaceae. The genus includes about 100 accepted species of trees and lianas, and more than 200 that are as yet unresolved. The genus is widely distributed around the world's tropics and is noted for the presence of poisonous indole alkaloids in the roots, stems and leaves of various species. Among these alkaloids are the well-known and virulent poisons strychnine and curare.
Cissus is a genus of approximately 350 species of lianas in the grape family (Vitaceae). They have a cosmopolitan distribution, though the majority are to be found in the tropics.
Chionanthus, common name: fringetrees, is a genus of about 150 species of flowering plants in the family Oleaceae.
Boscia is a genus of plant in family Capparaceae. It contains the following species:
Jollydora is a genus of plant in family Connaraceae. It contains the following species :
Tetracera is a genus of flowering plants of the Dilleniaceae family; several species are lianas.
Connarus is a genus of plants in the family Connaraceae.
Paxia is a genus of plants in the family Connaraceae, first described in 1891. It is native to west-central Africa.
Rourea is a genus of plants in the family Connaraceae. They are found worldwide across the tropics and subtropics.
Caiophora is a genus of flowering plants belonging to the family Loasaceae.
Chytranthus is a genus of flowering plants belonging to the family Sapindaceae.
