Phytelephas is a genus of six known species of dioecious palms in the family Arecaceae (order Arecales), commonly called ivory palms, ivory-nut palms, or tagua palms. The genus is native to tropical South America, ranging from southern Panama along the Andes through Ecuador, Colombia, Peru, Bolivia, and into northwestern Brazil.
These are medium-sized to tall palms, reaching up to 20 metres in height, with long pinnate leaves. The plants are dioecious — male and female flowers are borne on separate individuals. Male plants produce catkins up to 0.9 metres long, each bearing up to one thousand stamens, the greatest number of any monocot. The fruits contain hard, white seeds whose endosperm — called tagua nuts or jarina seeds — closely resembles elephant ivory in texture and colour.
The genus is best known for this vegetable ivory, which is harvested from the seeds and traded under names such as tagua, corozo, jarina, and marfil-vegetal. When dried, the endosperm can be carved and dyed like elephant ivory and is widely used for buttons, beads, figurines, and jewellery. It has also found use in the production of bagpipes. The ivory palm trade supports local economies in South America, provides communities with an economic alternative to clearing rainforest for agriculture, and reduces pressure on elephant populations by substituting for animal ivory.
The two most commercially important species are P. macrocarpa (large-fruited ivory palm), the primary source of internationally traded palm ivory from Brazil, and P. aequatorialis (Ecuadorean ivory palm), the species most widely harvested in Ecuador. In their native range, the palms are also used as a food source and for construction timber.
Etymology
The name Phytelephas is a compound of the Greek words phyton (plant) and elephas (elephant), meaning "plant elephant" or "plant ivory" — a direct reference to the ivory-like hardness and colour of the seeds. The common names ivory palm, ivory-nut palm, and tagua palm carry the same allusion, while tagua derives from a local South American vernacular term for the nuts.
Distribution
Phytelephas species occur in humid lowland and foothill forests from southern Panama southward along the Andean foothills through Colombia, Ecuador, Peru, Bolivia, and into northwestern Brazil. The genus is largely concentrated in western Amazonia and the Pacific-facing Andean slopes; individual species have restricted ranges within this broader area, with P. aequatorialis centred on Ecuador and P. macrocarpa extending into Peru and Brazil.
Cultural Uses
Tagua nuts (the dried endosperm of Phytelephas seeds) have been carved in South America for centuries and entered global trade during the nineteenth century as a substitute for elephant ivory — at one point supplying roughly 20 percent of the world's ivory-like material for buttons. Trade declined when plastic buttons became widespread, but revived with renewed interest in sustainable and wildlife-friendly materials. Today, tagua is used for buttons, beads, figurines, jewellery, and specialty items such as bagpipe chanters. In their native communities, the palms also provide edible young endosperm (consumed like coconut jelly), thatch from leaves, and timber for local construction.
