Galium is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, occurring in the temperate zones of both the Northern and Southern Hemispheres. Some species are informally known as bedstraw.
Diodia is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from southern and eastern United States, South America, Central America, Mexico, the West Indies and tropical Africa.
Psychotria is a genus of flowering plants in the family Rubiaceae. It contains 1,582 species and is therefore one of the largest genera of flowering plants. The genus has a pantropical distribution and members of the genus are small understorey trees in tropical forests. Some species are endangered or facing extinction due to deforestation, especially species of central Africa and the Pacific.
Alleizettella is a genus of flowering plants in the family Rubiaceae. It is restricted to southeastern China and northern Vietnam. The genus commemorates French botanist Aymar Charles d'Alleizette.
Erithalis is a genus of flowering plants in the family Rubiaceae. The genus is found from southern Florida to tropical America.
Guettarda is a plant genus in the family Rubiaceae. Most of these plants are known by the common name Velvetseed. Estimates of the number of species range from about 50 to 162. Most of the species are neotropical. Twenty are found in New Caledonia and one reaches Australia. A few others are found on islands and in coastal areas of the Indian and Pacific Oceans.
Boholia is a monotypic genus of flowering plants in the family Rubiaceae. It was described by Elmer Drew Merrill in 1926. The genus contains only one species, viz. Boholia nematostylis, which is native to Sumatra and the Lesser Sunda Islands of Indonesia and the Philippines.
Theligonum is a genus of flowering plants in the family Rubiaceae. It was described by Carl Linnaeus in 1753. The genus is found from Macaronesia to the Mediterranean Basin, and from China to temperate eastern Asia. It is the only genus in the tribe Theligoneae.
Ceuthocarpus is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Ceuthocarpus involucratus, which is endemic to Cuba.
Crossopteryx is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Crossopteryx febrifuga, which is found in tropical and southern Africa.
Cyanoneuron is a genus of flowering plants in the family Rubiaceae. The genus is found on Borneo and Sulawesi.
Deccania is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Deccania pubescens, which is endemic to India.
Dibrachionostylus is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Dibrachionostylus kaessneri, which is endemic to Kenya.
Diyaminauclea is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Diyaminauclea zeylanica, which is endemic to Sri Lanka.
Dolichodelphys is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Dolichodelphys chlorocrater, which is found in Venezuela, Colombia, Ecuador, and Peru.
Dunnia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Dunnia sinensis, which is endemic to Guangdong.
Durringtonia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Durringtonia paludosa, which is endemic to Australia.
Eizia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Eizia mexicana, which is found in Chiapas and Guatemala.
Eleuthranthes is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Eleuthranthes liberiflora, which is endemic to Western Australia.
Trailliaedoxa is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Trailliaedoxa gracilis, which is endemic to south-central China. It is also the only species in the tribe Trailliaedoxeae.
