Castanopsis lucida is a tree in the family Fagaceae. The specific epithet Latin: [[:wikt:lucidus|lucida]] is from the Latin meaning 'shining', referring to the leaf surface.
Castanopsis lucida grows as a tree up to 20m (70feet) tall with a trunk diameter of up to 40cm (20inches). The brown bark is glabrescent, lenticellate, fissured or occasionally smooth. The coriaceous leaves measure up to 21cm (08inches) long. Its ovoid nuts measure up to 21NaN1 long.
Castanopsis lucida grows naturally in Borneo, Peninsular Malaysia and Singapore. Its habitat is hill dipterocarp forests up to 500m (1,600feet) elevation.
The bark produces tannin. The nuts are considered edible.