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.
Leea is a genus of plants in the family Vitaceae, subfamily Leeoideae, that are native to parts of central Africa, tropical Asia, Australia and Melanesia. It was previously placed in its own family, Leeaceae, based on morphological differences between it and other Vitaceae genera. These differences include ovule number per locule, carpel number, and the absence or presence of a staminoidal tube and floral disc. Pollen structure has also been examined for taxonomic demarcation, though studies have concluded that the pollen of Leeaceae and Vitaceae suggests the families should remain separate while other studies conclude that Leea should be included in Vitaceae.
Dischidia is a genus of plants in the “dog-bane” family Apocynaceae, collectively known as the “milkweeds”. They are epiphytes, native to tropical areas of China, India as well as Bhutan’s southern borders, wherever minimal frost occurs. Additionally, they are known from most areas of Mainland Southeast Asia, including forested areas of Myanmar, Thailand, Vietnam, Cambodia, Laos, and some parts of Indonesia, Malaysia and Singapore. Several species are also native to Papua New Guinea and northeastern Australia.
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.
Goniothalamus is one of the largest palaeotropical genera of plant in family Annonaceae.
Lasianthus is a genus of flowering plants in the family Rubiaceae. They are tropical subshrubs, shrubs, or rarely, small trees. They inhabit the understory of primary forests.
Polyalthia is a genus of flowering plants in the family Annonaceae. There are approximately 90 species distributed from Africa to Asia and the Pacific.
Prismatomeris is a genus of plant in the family Rubiaceae. It includes 17 species native to the Indian subcontinent, Indochina, southern China, and western Malesia.
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.
Mycetia is a genus of flowering plants in the family Rubiaceae. It includes 54 species, ranging from the Indian subcontinent through Indochina, southern China, and Malesia to New Guinea.
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.
Diplospora is a genus of flowering plants in the family Rubiaceae. The genus is found in tropical and subtropical Asia.
Ridsdalea is an Asian genus of plants in the family Rubiaceae; it was named after Dr. Colin Ernest Ridsdale (1944–2017), who was an English botanist and Specialist in tropical plants and Rubiaceae family. The type species is Ridsdalea grandis(Korth.) J.T.Pereira, which was renamed from the basionym Gardenia grandis. Several other species have been reassigned from other genera: notably Rothmannia, which is now reserved for African species. Its native range is southern China, Indo-China, Malesia and New Guinea.
