Castanopsis psilophylla is a tree in the family Fagaceae. The specific epithet psilophylla means 'smooth leaves'.
Castanopsis psilophylla grows as a tree up to 30m (100feet) tall with a trunk diameter of up to 50cm (20inches). The brown bark is smooth or with fine fissures. The coriaceous leaves measure up to 15cm (06inches) long. Its ovoid nuts measure up to 21NaN1 long and are considered edible.
Castanopsis psilophylla grows naturally in Borneo and the Philippines. Its habitat is hill dipterocarp forests up to 1000m (3,000feet) elevation.