What is "aetoxylon"

Aetoxylon is a single species genus ( monotypic) of trees only found ( endemic) in Borneo, of the flowering plant family Thymelaeaceae. the World Checklist of Selected Plant Families recognises the single species Aetoxylon sympetalum.

Aetoxylon sympetalum grows as a tree up to tall, with a trunk diameter of up to . Bark is dark brown to black. Fruit is reddish brown, up to in diameter. The specific epithet sympetalum is from the Latin meaning "united petals". Habitat is lowland forests from sea-level to altitude.