''Ptychopyxis'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...

of the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Euphorbiaceae Euphorbiaceae (), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of Euphorbia, the type genus of the family. Most spurges, such as ''Euphorbia paralias'', ar ...

first described in 1861. It is native to

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

and

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

.Kew World Checklist of Selected Plant Families
/ref>Stoops, E. & van Welzen, P.C. (2013). A revision of ''Ptychopyxis'' (Euphorbiaceae) in southeast Asia. Nordic Journal of Botany 31: 94-112. ;Species # '' Ptychopyxis arborea'' - Borneo # '' Ptychopyxis bacciformis'' - Vietnam, Borneo, Sumatra, Philippines, W Malaysia # '' Ptychopyxis caput-medusae'' - W Malaysia # '' Ptychopyxis chrysantha'' - New Guinea # '' Ptychopyxis costata'' - Borneo, Sumatra, W Malaysia # '' Ptychopyxis glochidiifolia'' -

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

Sarawak Sarawak ( , ) is a States and federal territories of Malaysia, state of Malaysia. It is the largest among the 13 states, with an area almost equal to that of Peninsular Malaysia. Sarawak is located in East Malaysia in northwest Borneo, and is ...

Brunei Brunei, officially Brunei Darussalam, is a country in Southeast Asia, situated on the northern coast of the island of Borneo. Apart from its coastline on the South China Sea, it is completely surrounded by the Malaysian state of Sarawak, with ...

Kalimantan Timur East Kalimantan (Indonesian: ) is a province of Indonesia. Its territory comprises the eastern portion of Borneo/Kalimantan. It had a population of about 3.03 million at the 2010 census (within the current boundary),Biro Pusat Statistik, Jakarta ...

# '' Ptychopyxis grandis'' - Borneo # '' Ptychopyxis javanica'' - S Thailand, Vietnam, W Malaysia, Borneo, Sumatra, Java # '' Ptychopyxis kingii'' - W Malaysia, E Sumatra,

Sabah Sabah () is a States and federal territories of Malaysia, state of Malaysia located in northern Borneo, in the region of East Malaysia. Sabah has land borders with the Malaysian state of Sarawak to the southwest and Indonesia's North Kalima ...

# '' Ptychopyxis plagiocarpa'' - S Thailand, S Myanmar ;formerly included moved to '' Koilodepas'' # '' Ptychopyxis frutescens - Koilodepas frutescens'' # '' Ptychopyxis thwaitesii - Podadenia sapida''

References

Pycnocomeae Euphorbiaceae genera {{Euphorbiaceae-stub