Cotoneaster is a large Eurasian genus of shrubs and small trees in the Rosaceae. Few species have good autumn foliage, but nearly all produce attractive berries, usually red, which are popular with birds. Some species can be almost too easy to grow and can become invasive, particularly on cliffs. This is C. bullatus, one of many species from western China which has attractive bullate foliage, but often self-sown with abandon. Author's garden, UK.