Xanthophyllum lineareXanthophyllum lineare is a tree in the family Polygalaceae. The specific epithet lineare is from the Latin meaning 'line', referring to the linear shape of the leaves.DescriptionXanthophyllum lineare grows up to tall with a trunk diameter of up to. The smooth bark is brown or blackish. The flowers are pinkish or red. The light brown fruits are round and measure up to in diameter.Distribution and habitatXanthophyllum lineare is endemic to Borneo and known only from Sabah. Its habitat is stunted lowland rain forest growing on ultrabasic bedrock, from to elevation.