Sorbus leyana
 Sorbus leyana (also called Ley's Whitebeam) is a species of plant in the Rosaceae family. It is endemic to the United Kingdom where it is found in the wild at two sites in the Brecon Beacons in Wales. It is threatened by habitat loss. There are about 16 examples left in the wild. Seeds have been collected by the Royal Botanic Gardens Kew.