Castanopsis borneensis

Castanopsis borneensis is a tree in the family Fagaceae. The specific epithet borneensis is from the Latin, meaning 'of Borneo'.

Description
Castanopsis borneensis grows as a tree up to 20 m tall with a trunk diameter of up to 30 cm. The bark is smooth or fissured. The coriaceous leaves measure up to 11 cm long. Its ovoid nuts measure up to 2 cm long.

Distribution and habitat
Castanopsis borneensis is endemic to Borneo. Its habitat is lowland dipterocarp and kerangas forests from sea-level to 200 m altitude.