Lithocarpus echinulatus is a tree in the beech family Fagaceae. The specific epithet echinulatus means 'having short spines', referring to the cupule.
Description Lithocarpus echinulatus grows as a buttressed tree up to tall with a trunk diameter of up to . The brownish bark is smooth. The coriaceous leaves measure up to long. Its brown acorns are roundish and measure up to across.
Distribution and habitat Lithocarpus echinulatus is endemic to Borneo. Its habitat is lowland dipterocarp forests, generally by rivers, up to elevation.
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