Xanthophyllum havilandiiXanthophyllum havilandii is a plant in the family Polygalaceae. It is named for the naturalist George Darby Haviland.DescriptionXanthophyllum havilandii grows as a shrub or small tree up to tall with a stem diameter of up to. The bark is blackish. The flowers are yellowish when dry. The round fruits measure up to long.Distribution and habitatXanthophyllum havilandii is endemic to Borneo. Its habitat is lowland mixed dipterocarp forests.