Lithocarpus ferrugineus is a tree in the beech family Fagaceae. The specific epithet ferrugineus means 'red-brown', referring to the acorn's indumentum.
Lithocarpus ferrugineus grows as a tree up to 30m (100feet) tall with a trunk diameter of up to 50cm (20inches). The greyish brown bark is smooth or scaly or lenticellate. Its coriaceous leaves measure up to 30cm (10inches) long. The reddish brown acorns are ovoid and measure up to 2.30NaN0 across.
Lithocarpus ferrugineus grows naturally in Peninsular Malaysia and Borneo. Its habitat is mixed dipterocarp to lower montane forests to 1200m (3,900feet) elevation.