Gardenia is a genus of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, Asia, Madagascar, Pacific Islands, and Australia.
Litsea is a genus of evergreen or deciduous trees or shrubs belonging to the laurel family, Lauraceae. The genus includes a large number of accepted species in tropical and subtropical areas of North America and Asia.
Ixora is a genus of flowering plants in the family Rubiaceae. It is the only genus in the tribe Ixoreae. It consists of tropical evergreen trees and shrubs and holds around 544 species. Though native to the tropical and subtropical areas throughout the world, its centre of diversity is in Tropical Asia. Ixora also grows commonly in subtropical climates in the United States, such as Florida where it is commonly known as West Indian jasmine.
Canthium is a genus of flowering plants in the family Rubiaceae. They are shrubs and small trees. The leaves are deciduous and the stems are usually thorny.
Pseuderanthemum is a genus of plants in family Acanthaceae with a pantropical distribution.
Saprosma is a genus of flowering plants in the family Rubiaceae. There are about 40 species distributed from south China to tropical Asia.
Urophyllum is a genus of flowering plant in the family Rubiaceae, native to from south China to Tropical Asia. The genus was established by Nathaniel Wallich in 1824.
Argostemma is a genus of flowering plants in the family Rubiaceae. It can be found in (sub)tropical Asia and western and west-central tropical Africa.
Hedyotis (starviolet) is a genus of flowering plants in the family Rubiaceae. Many species of this genus such as Hedyotis biflora, H. corymbosa and H. diffusa are well known medicinal plants. Hedyotis is native to tropical and subtropical Asia and to islands of the northwest Pacific. It comprises about 115 species. The type species for the genus is Hedyotis fruticosa.
Mussaenda is a genus of flowering plants in the family Rubiaceae. They are native to the African and Asian tropics and subtropics. Several species are cultivated as ornamental plants.
Chassalia is a genus of flowering plants in the family Rubiaceae. The genus is found from tropical Africa to (sub)tropical Asia.
Eumachia is a genus of flowering plant in the family Rubiaceae. Its species are native to tropical and subtropical regions worldwide. The genus was established by Augustin Pyramus de Candolle in 1830.