Found exclusively within the dense tropical landscapes of Gabon, Iridosma stands as a unique botanical lineage within the Simaroubaceae family. This monotypic genus contains only a single accepted species, which thrives in the warm, humid climate of equatorial Africa.
First documented in the mid-20th century, the plant remains a subject of specialized botanical interest due to its highly restricted geographic distribution and distinct morphological traits.
This plant grows as a robust tree characterized by impressive, glabrous leaves that can reach up to 60 centimeters in length. The foliage is pinnately compound, typically featuring 23 coriaceous, or leather-like, leaflets measuring about 8 to 15 centimeters long.
Its reproductive structures consist of fragrant, hermaphroditic flowers arranged in branched panicles. The overall leaf structure has been noted by botanists to closely resemble that of Quassia grandifolia.
The genus was first formally described by botanists André Aubréville and François Pellegrin in 1962 based on specimens collected in Gabon. In historical taxonomic records, the plant was initially associated with the name Mannia letestui before its current classification was established.
Picrasma
A genus of deciduous trees and shrubs known for their extremely bitter bark and medicinal …
Brucea
Brucea is a genus of evergreen shrubs and small trees in the family Simaroubaceae, native …
Castela
Castela is a genus of dioecious, extremely thorny shrubs and small trees in the family …
Simarouba
A genus of neotropical trees and shrubs famous for their lightweight timber and therapeutic bark.