Castanopsis borneensis

Castanopsis borneensis is a tree in the family Fagaceae. The specific epithet "" is from the Latin, meaning "of Borneo".
Description.
"Castanopsis borneensis" grows as a tree up to tall with a trunk diameter of up to . The bark is smooth or fissured. The coriaceous leaves measure up to long. Its ovoid nuts measure up to long.
Distribution and habitat.
"Castanopsis borneensis" is endemic to Borneo. Its habitat is lowland dipterocarp and "kerangas" forests from sea-level to altitude.