Xanthophyllum ferrugineum is a tree in the family Polygalaceae. The specific epithet is from the Latin meaning "rust-coloured", referring to the inflorescences. Description Xanthophyllum ferrugineum grows up to tall with a trunk diameter of up to . The smooth bark is grey or greenish. The flowers are yellow or white. The yellowish brown fruits are roundish and measure up to in diameter. Distribution and habitat Xanthophyllum ferrugineum is endemic to Borneo. Its habitat is mixed dipterocarp forests from sea-level to altitude. References ferrugineum Endemic flora of Borneo Trees of Borneo Plants described in 1973