Monotypic Apocynaceae genera

Nerium oleander ( ), commonly known as oleander, rose laurel, be-still tree or rosebay, is a shrub or small tree cultivated worldwide in temperate and subtropical areas as an ornamental and landscaping plant. It is the only species currently classified in the genus Nerium, belonging to subfamily Apocynoideae of the dogbane family Apocynaceae. It is so widely cultivated that no precise region of origin has been identified, though it is usually associated with the Mediterranean Basin.

Stelmagonum hahnianum is a species of flowering plants belonging to the family Apocynaceae. It is the sole representative of the genus Stelmagonum.

Gyrostelma is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Gyrostelma oxypetaloides.

Amalocalyx is a genus of plant in family Apocynaceae consisting of lianas often found clinging to trees. It was first described as a genus in 1898.

Notechidnopsis is a group of plants in the family Apocynaceae first described as a genus in 1985. It contains only one recognized species, Notechidnopsis tessellata, native to Cape Province in South Africa.

Ophionella is a group of plants in the family Apocynaceae first described as a genus in 1981. It contains only one accepted species, Ophionella arcuata, native to Eastern Cape Province of South Africa.

Lavrania is a monospecific genus of plants in family Apocynaceae. Its only species is Lavrania haagnerae, endemic to Namibia. Its natural habitat is rocky areas.

Edithcolea is a monotypic genus with a single species Edithcolea grandis (Persian carpet flower). Once classified in the family Asclepiadaceae, it is now in the subfamily Asclepiadoideae of the dogbane family Apocynaceae. It is native to eastern Africa and to the Arabian Peninsula.

Whitesloanea (also White-sloanea) is a monotypic genus of flowering plants belonging to the family Apocynaceae. It has only one known species, Whitesloanea crassa (N.E.Br.) Chiov.

Picralima is a plant genus in the family Apocynaceae, first described as a genus in 1896. It contains only one known species, Picralima nitida (aka Picralima Klaineana), native to tropical Africa (Benin, Ghana, Ivory Coast, Nigeria, Gabon, Cameroon, Cabinda, Central African Republic, Republic of Congo, Zaire, Uganda).

Cionura is a genus of perennial plants found through the Mediterranean regions, the South and Eastern parts of the Balkan peninsula and Asia Minor to Afghanistan. It contains only one known species, Cionura erecta.

Ixodonerium is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1933. It contains only one known species, Ixodonerium annamense, endemic to Vietnam.

Allowoodsonia is a plant genus in the family Apocynaceae, first described in 1967. It contains only one known species, Allowoodsonia whitmorei, endemic to the Solomon Islands in the SW Pacific.

Eucorymbia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1905. It contains only one known species, '''Eucorymbia alba,''' native to Borneo, Sumatra, and peninsular Malaysia.

Clitandra is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1849. A total of 46 names have been coined since that time for species, subspecies, and varieties within the genus, but most of them have been transferred to other genera. The genus is currently regarded as containing only one species, Clitandra cymulosa, native to tropical Africa (from Sierra Leone to Tanzania, south to Angola).

Solenostemma is a genus of plants in the family Apocynaceae, It was established as a genus in 1825. It contains only one known species, Solenostemma arghel, native to North Africa and the Arabian Peninsula.

Calocrater is a genus of plant in the family Apocynaceae first described as a genus in 1895. It contains only one known species, Calocrater preussii, native to central Africa (Cameroon, Gabon, Congo-Brazzaville).

Stephanostema is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1904. It contains only one known species, Stephanostema stenocarpum, found only in the Uzaramo District in eastern Tanzania.

Holostemma is a genus of flowering plants in the family Apocynaceae. The genus was first described in 1810. As presently constituted, the genus contains only one known species, Holostemma ada-kodien, native to southern Asia (China, Nepal, Pakistan, India, Sri Lanka, Myanmar, Thailand).

Parepigynum is a genus of liana in the family Apocynaceae, first described as a genus in 1973. It contains only one known species, Parepigynum funingense, native to Guizhou and Yunnan Provinces in China.

Graphistemma is a species of plants in the Apocynaceae first described as a genus in 1876. It contains only one known species, Graphistemma pictum, native to Vietnam and S China (Guangdong, Guangxi, Hainan).

Hancornia is a genus of flowering plant in the family Apocynaceae, first described as a genus in 1812. It is native to South America (Brazil, Peru, Bolivia, Paraguay). It contains only one known species, Hancornia speciosa, commonly called mangabeira, which produces fruits known as mangabas.

Microplumeria is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1889. It contains only one known species, Microplumeria anomala, native to the Amazon Basin of Venezuela, Colombia, and Brazil.

Vailia is a monotypic genus of flowering plants belonging to the family Apocynaceae. It just contains one species, Vailia mucronata Rusby.

Dewevrella is a genus of plants first described in 1907. It contains only one known species, Dewevrella cochliostema, native to central Africa (Gabon, Republic of Congo, Democratic Republic of the Congo).

Papuechites is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1925. It contains only one known species, Papuechites aambe, native to New Guinea, the Bismarck Archipelago, and the Indonesian Province of Maluku.

Pycnobotrya is a monotypic genus of plant in the family Apocynaceae found in tropical Africa. the World Checklist of Selected Plant Families recognises the single species Pycnobotrya nitida.

Baharuia is a plant genus in the family Apocynaceae, first described as a genus in 1995. It contains only one known species, Baharuia gracilis, native to Borneo and northern Sumatra.

Anatropanthus is a species of plants in the family Apocynaceae first described as a genus in 1908. It contains only one known species, Anatropanthus borneensis , endemic to the Island of Borneo. This species has been subsumed into genus Hoya as of 2020 under the name Hoya insularis.

Dolichopetalum is a genus of plants in the family Apocynaceae, first described as a genus in 1973. It contains only one known species, Dolichopetalum kwangsiense, endemic to China, known from the Provinces of Guangxi, Guizhou, and Yunnan.

Oreosparte is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Oreosparte celebica.

Cyclocotyla is a genus of plants first described in 1908. It contains only one known species, Cyclocotyla congolensis, native to central Africa (Nigeria, Cameroon, Gabon, Central African Republic, Republic of Congo, Democratic Republic of the Congo).

Myriopteron is a species of plants in the family Apocynaceae first described as a genus in 1844. It contains only one known species, Myriopteron extensum, native to Southeast Asia, India, and southern China. It can be found in Bangladesh.

Margaretta is a genus of plants in the family Apocynaceae first described as a genus in 1875. A dozen names have been proposed as species within Margaretta, but at present only one, Margaretta rosea, is categorized as "accepted" by The Plant List. Most of the rest are "unresolved," in other words, of uncertain affinity. Margaretta rosea is native to Uganda in eastern Africa.

Schizozygia is a monotypic genus of plant in the family Apocynaceae found in tropical Africa and the Comoros. , Plants of the World Online recognises the single species Schizozygia coffaeoides.

thumb|right|Thyrsanthella difformis flower

Spirolobium is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1889. It includes only one known species, Spirolobium cambodianum, native to Southeast Asia (Vietnam, Laos, Cambodia, Thailand, Malaysia, Borneo).

Pycnorhachis is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Pycnorhachis maingayi.

Diplorhynchus is a monotypic genus of plant in the family Apocynaceae native to tropical and southern Africa. , Plants of the World Online recognises the single species Diplorhynchus condylocarpon.

Cycladenia humilis is the sole member of the monotypic genus Cycladenia. Known by the common name Sacramento waxydogbane, it is an uncommon plant native to the southwestern United States. Collections have mostly been from California, although the species has also been reported from Utah and Arizona, mostly on gypsum soils. It is found at some elevation in several mountain ranges in the region. One of the four varieties of this plant, called the Jones cycladenia, is considered a threatened taxon. This is a fleshy perennial herb with dull green leaves and pinkish lavender flowers. The flowers be

Heynella is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Heynella lactea.

Farquharia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1912. It contains only one recognized species, Farquharia elliptica, native to tropical western and central Africa (Ghana, Ivory Coast, Nigeria, Cameroon, Gabon, Republic of Congo and Democratic Republic of the Congo).

Mahawoa is a monotypic genus of flowering plants belonging to the family Apocynaceae. The only species is Mahawoa montana.

Mortoniella is a monotypic genus of flowering plants in the family Apocynaceae, first described as a genus in 1939. It contains only one known species, Mortoniella pittieri, native to Central America (Belize, Costa Rica, Nicaragua).

Odontanthera is a genus of plants in the family Apocynaceae first described as a genus in 1883. It contains only one recognized species, Odontanthera radians, a rare plant native to the shores of the Red Sea.

Craspidospermum is a monotypic genus of plant in the family Apocynaceae endemic to Madagascar. the World Checklist of Selected Plant Families recognises the single species Craspidospermum verticillatum (Malagasy: Vandrika).

Elytropus is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1860. It contains only one known species, Elytropus chilensis, native to Chile and to Rio Negro Province in Argentina.

Atherandra is a genus of flowering plants belonging to the family Apocynaceae. The only species is Atherandra acutifolia.

Hypolobus is a species of plants in the family Apocynaceae first described as a genus in 1885. It contains only one known species, Hypolobus infractus, endemic to the State of Bahia in Brazil.

Stipecoma is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1860. It contains only one known species, Stipecoma peltigera, native to Brazil and Bolivia.

Maclaudia is a monotypic genus of flowering plants belonging to the family Apocynaceae. It only contains one known species, Maclaudia felixii Venter & R.L.Verh.

Baseonema is a genus of flowering plants belonging to the family Apocynaceae.

Zygostelma benthamii is a species of flowering plant in the family Apocynaceae native to Southeast Asia. It is the only species in the genus Zygostelma and was first formally named in 1890.

Campestigma is a species of plants in the family Apocynaceae first described as a genus in 1912. It contains only one known species, Campestigma purpurea, native to Laos and Vietnam.

Oncinema is a genus of plants in the family Apocynaceae first described as a genus in 1834. It contains only one known species, Oncinema lineare , native to South Africa.

Amphineurion is a genus of plants in the family Apocynaceae, first described as a genus in 1948. It contains only one known species, Amphineurion marginatum, native to Cambodia, S China (Guangdong, Hainan), India, Indonesia, Laos, Malaysia, Philippines, Thailand and Vietnam.

Chamaeclitandra is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1953. It contains only one known species, Chamaeclitandra henriquesiana, native to tropical Africa.

Nautonia is a group of plants in the family Apocynaceae first described as a genus in 1844. It contains only one known species, Nautonia nummularia, native to Brazil.

Rhigospira is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1878 by John Miers. The species, Rhigospira quadrangularis was first described as Ambelania quadrangularis by Johannes Müller Argoviensis in 1860 but was transferred to the genus, Rhigospira, in 1878 by John Miers. The genus contains only one known species, Rhigospira quadrangularis, native to northwestern South America (Colombia, Venezuela, Peru, NW Brazil).

species of plant