Lithocarpus gracilis is a tree in the beech family Fagaceae. The specific epithet gracilis means 'slender', referring to the twigs.
Description Lithocarpus gracilis grows as a tree up to tall with a trunk diameter of up to . Its buttresses grow up to in height. The greyish brown bark is smooth, fissured or scaly. Its coriaceous leaves measure up to long. The brownish acorns are ovoid to conical and measure up to across.
Distribution and habitat Lithocarpus gracilis grows naturally in Peninsular Malaysia, Sumatra, and Borneo. Its habitat is mixed dipterocarp (including kerangas) forests to elevation.
Conservation Lithocarpus gracilis has been assessed as least concern on the IUCN Red List. Its lowland habitat makes it vulnerable to land conversion. Harvesting for its timber is also a threat. In Sabah, logging of Lithocarpus species is prohibited by law. In 2009, the species was assessed as extinct in Singapore.
Uses The timber is locally used in construction.
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