Diospyros cauliflora, also known as Apunan, is a native ebony species.
A relatively small tree that grows up to 8 meters tall in the wild. The leaves are oblong to lanceolate with an acute to cuneate base and a cuspidate or caudate apex, the texture ranges from papery to leathery and is glabrous on all sides. The flowers are usually found on the trunk of the tree hence the specific epithet, staminate flowers are arranged in a cyme while pistillate flowers are typically solitary but can also be cymose. The corolla of both flowers are 4-merous and ovoid to urceolate with black hairs on the outside while being smooth on the inside. Staminate flowers are pubescent with 16-20 stamens in each flower. Pistillate flowers also have an ovary that is rudimentarily hirsute and ovoid. The fruit itself has an ovoid or ellipsoid shape to it with a leathery and glabrous pericarp, the apex is slightly apiculate and is rounded or obtuse at both ends.This slow growing tree is used as a heavy hardwood for house construction. The seeds are recalcitrant, which means it needs to be sown immediately. The fallen mature fruit can be planted straight into potting media.