''Caryodendron'' is a plant

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 ...

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 as a genus in 1860. The genus includes '' C. orinocense'', known as the Inchi tree or Tacay nut. It is native to

Central America Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to the southwest. Central America is usually ...

and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

.Kew World Checklist of Selected Plant Families
/ref> They are

dioecious Dioecy ( ; ; adj. dioecious, ) is a characteristic of certain species that have distinct unisexual individuals, each producing either male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is ...

trees.Flowering Plants. Eudicots: Malpighiales. Germany, Springer Berlin Heidelberg, 2013. ;Species # '' Caryodendron amazonicum'' Ducke - Amazonas in Brazil # '' Caryodendron angustifolium'' Standl. - Costa Rica, Panama, Colombia # '' Caryodendron janeirense'' Müll.Arg. -

Rio de Janeiro Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...

# '' Caryodendron orinocense'' H.Karst - Colombia, Venezuela, Ecuador

References

Euphorbiaceae genera Acalyphoideae Dioecious plants Taxa named by Gustav Karl Wilhelm Hermann Karsten {{Euphorb-stub