Acanthaceae is a family of dicotyledonous flowering plants containing almost 250 genera and about 2500 species. Most are tropical herbs, shrubs, or twining vines; some are epiphytes. Only a few species are distributed in temperate regions. The four main centres of distribution are Indonesia and Malaysia, Africa, Brazil, and Central America. Representatives of the family can be found in nearly every habitat, including dense or open forests, scrublands, wet fields and valleys, sea coast and marine areas, swamps, and mangrove forests.
Phelline is a genus of shrubs and the sole member of the family Phellinaceae, one of the three families of flowering plants that are endemic to New Caledonia. It is placed in the order Asterales and is related to two other small plant families: Alseuosmiaceae and Argophyllaceae. It contains ten species.
Bullockia is a genus of flowering plants in the family Rubiaceae. It was originally described as a subgenus of Canthium. The genus is distributed in eastern and southern Africa from Ethiopia to Transvaal, as well as Madagascar in bushland, woodland, savannas, and dry, deciduous forests.
Breonia is a genus of flowering plants in the family Rubiaceae. It is endemic to Madagascar. Most species are trees, rarely shrubs.
Vanguerieae is a tribe of flowering plants in the family Rubiaceae and contains about 655 species in 30 genera. It is one of the most species-rich groups within the family and it is distributed all over the Paleotropics.
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.
Peponidium is a genus of flowering plants in the family Rubiaceae. The genus is endemic to Madagascar, except for Peponidium ovato-oblongum and Peponidium venulosum that are found on the Comoros, and Peponidium carinatum and Peponidium celastroides that are found on the Seychelles.
Pentanisia is a genus of flowering plants in the family Rubiaceae.
Chamaepentas is a genus of flowering plants in the family Rubiaceae. It is native to tropical Africa.
Dirichletia is a genus of flowering plants in the family Rubiaceae. The genus is found northeastern tropical Africa to Namibia.
Dolichopentas is a genus of flowering plants in the family Rubiaceae. The genus is found in tropical Africa.
Cinchonoideae is a subfamily of flowering plants in the family Rubiaceae and contains about 1700 species in 10 tribes.
Rubioideae Juss., 1789 is a subfamily of flowering plants in the family Rubiaceae and contains about 7600 species in 27 tribes.
Knoxieae is a tribe of flowering plants in the family Rubiaceae and contains about 131 species in 16 genera. Its representatives are found in Tropical and Southern Africa, the islands in the Western Indian Ocean, the Arabian Peninsula, Tropical and Subtropical Asia, and Northern Australia.
Palicoureeae is a tribe of flowering plants in the family Rubiaceae and contains about 817 species in 11 genera. Its representatives are found in the tropics and subtropics.
Gynochthodes is a genus of flowering plants in the family Rubiaceae. The genus is found from Madagascar to tropical and subtropical Asia and the Pacific region.
Triainolepis is a genus of flowering plants belonging to the family Rubiaceae.
Phyllopentas is a genus of flowering plants belonging to the family Rubiaceae.
Rhodopentas is a genus of flowering plants belonging to the family Rubiaceae.
