Euonymus castaneifolius is a tree in the family Celastraceae. The specific epithet Latin: castaneifolius is from the Latin meaning 'chestnut-coloured leaves'.
Euonymus castaneifolius grows up to 12m (39feet) tall with a trunk diameter of up to 10cm (00inches). The smooth bark is grey-brown. The flowers are white. The obovoid fruits ripen red and measure up to 1.80NaN0 long.
Euonymus castaneifolius grows naturally in Sumatra and Borneo. Its habitat is lowland mixed dipterocarp to montane forests from sea-level to 2700m (8,900feet) altitude.