Gymnostemon

{{Short description|Genus of trees}}

{{speciesbox

|status = VU

|status_system = IUCN2.3

|status_ref = {{cite iucn |author=Assi, A. |date=1998 |title=Gymnostemon zaizou |volume=1998 |page=e.T32225A9688992 |doi=10.2305/IUCN.UK.1998.RLTS.T32225A9688992.en |access-date=16 November 2021}}

|genus = Gymnostemon

|parent_authority = Aubrév. & Pellegr.

|species = zaizou

|authority = Aubrév. & Pellegr.

}}

Gymnostemon is a monotypic genus of plants in the family Simaroubaceae. The sole species, Gymnostemon zaizou, is semi-deciduous forest tree. It is endemic to Côte d'Ivoire and threatened by habitat loss throughout its native range of the Sassandra River Basin.{{ Cite document | first = J-BLF | last = Avit |author2=Patrick Leon Pedia |author3=Yacouba Sankaré | title = Ministère de l'Environnement et de la Forêt diversite biologique de la Cote D'Ivoire (Rapport de synthèse) | publisher = United Nations Environment Programme | year = 1999 }} G. zaizou is a commercial hardwood species that is well-adapted to the heavy rainfall of western Africa. Wood from this species of tree is also used locally to make barred percussion instruments.{{cite journal|last = Brancheriau|first = Loïc|author2=Henri Baillères |author3=Pierre Détienne |author4=Richard Kronland |author5=Bloen Metzger |title = Classifying xylophone bar materials by perceptual, signal processing and wood anatomy analysis|journal = Annals of Forest Science |volume = 63|pages = 73–81|publisher = EDP Sciences|year = 2006| issue=1 |doi = 10.1051/forest:2005099|url = http://www.afs-journal.org/articles/forest/pdf/2006/01/F6008.pdf|doi-access = free| bibcode=2006AnFSc..63...73B }}