Ayapana is a small genus of perennial herbs belonging to the family Asteraceae (the daisy family), placed within the order Asterales. The genus is native to the Neotropics, with its range spanning South America, Central America, and the West Indies, from the Lesser Antilles and Trinidad south through Colombia, Venezuela, Ecuador, Peru, Bolivia, and northern Brazil. Species grow as herbs with opposite, lance-shaped leaves that are typically three-veined — a feature reflected in the name of the best-known member, Ayapana triplinervis.
Historically, the species now placed in Ayapana were classified within the large and heterogeneous genus Eupatorium. The genus was segregated by botanists R.M. King and H. Robinson as part of their major revision of the tribe Eupatorieae within Asteraceae. With only a handful of accepted species recognized by GBIF, Ayapana is a relatively small genus.
The most widely known species is Ayapana triplinervis, which has a long history of use in traditional medicine across the Caribbean and South America. Its leaves are used in folk remedies and the plant is cultivated in some tropical regions for this purpose.
Distribution
Ayapana is native to South America, Central America, and the West Indies. Species occur across a broad Neotropical range including Trinidad, the Lesser Antilles, Colombia, Venezuela, Ecuador, Peru, Bolivia, Panama, Costa Rica, French Guiana, and northern Brazil (Amapá, Amazonas, Pará).
Taxonomy Notes
Species of Ayapana were historically included in the large genus Eupatorium before being segregated by R.M. King and H. Robinson in their revision of the tribe Eupatorieae (Asteraceae). GBIF recognizes the genus as accepted within Asteraceae, order Asterales.
Cultural Uses
The leaves of Ayapana triplinervis are commonly used medicinally across the Caribbean and tropical South America, making it the most economically significant member of the genus.
