Xanthophyllum heterophyllumXanthophyllum heterophyllum is a tree in the family Polygalaceae. The specific epithet heterophyllum is from the Greek meaning 'different leaf', referring to the leaf-like appearance of the axillary buds.DescriptionXanthophyllum heterophyllum grows up to tall with a trunk diameter of up to. The smooth bark is greyish or yellowish. The brown fruits are round and measure up to in diameter.Distribution and habitatXanthophyllum heterophyllum is endemic to Borneo. Its habitat is lowland forests but can occur at up to altitude.