f. Psiloxylon mauritianum (known locally as "bois bigaignon") is a species of flowering plant, the sole species of the genus Psiloxylon.

It is endemic to the Mascarene Islands (Mauritius and Réunion) in the Indian Ocean.

[1] It is a white-barked evergreen tree, bearing essential oils.

It is dioecious,[1] with male and female flowers on separate individuals.

It is traditionally used as a medicinal plant, and appears contain compounds that inhibit the growth of Staphylococcus aureus.