Xanthophyllum resupinatumXanthophyllum resupinatum is a tree in the family Polygalaceae. The specific epithet resupinatum is from the Latin meaning 'upside-down appearance', referring to the leaves.DescriptionXanthophyllum resupinatum grows up to tall with a trunk diameter of up to. The smooth bark is grey or brown. The flowers are white, drying dark brownish. The round fruits are blackish and measure up to in diameter.Distribution and habitatXanthophyllum resupinatum is endemic to Borneo. Its habitat is mixed dipterocarp forest from sea-level to altitude.