Xanthosia ternifolia is an erect shrub that typically grows to a height of up to , its stems and leaves covered with woolly hairs. Its leaves are trifoliate, the leaflets egg-shaped long and long, the edges with three lobes. The flowers are arranged in a on the ends of branches or in leaf axils in a compound umbel on a
peduncle up to long with up to 4 flowers. There are yellow petal-like
involucral bracts long at the base of the flowers. The
sepals are long and the petals are white, long. Flowering occurs from September to December. ==Taxonomy and naming==