Castanopsis costataCastanopsis costata is a tree in the family Fagaceae. The specific epithet costata is from the Latin meaning 'ribbed', referring to the leaf venation.DescriptionCastanopsis costata grows as a tree up to tall with a trunk diameter of up to. The whitish bark is smooth, scaly or flaky. The coriaceous leaves measure up to long. Its conical nuts measure up to long.Distribution and habitatCastanopsis costata grows naturally in Thailand, Borneo, Peninsular Malaysia and Sumatra. Its habitat is lowland dipterocarp to montane forests from sea-level to altitude.UsesThe wood is locally used in construction. The nuts are considered edible.