 "Bertya ingramii" (narrow-leaved bertya) is an endangered species of shrub that is found in two locations, growing among rocks or in thin soils close to cliff-edges in dry woodland with she-oaks, wattles and tea-trees.The park is rich in fauna, with over 350 species recorded, including 55 mammals.Oxley Wild Rivers National Park is a major refuge for the brush-tailed rock-wallaby ("Petrogale pencillata"), with the largest confirmed population in the Green Gully area of Yarrowitch.