Very closely related to S. harrowiana, S. insignis and S. keenanii and like them this great rarity makes a rowan with bold foliage. Collected from the top of Emei Shan, Sichuan, this makes a shrub or small tree with comparatively large pinnate leaves from fat buds on thick twigs. Bunches of white fruit in autumn, which are usually slightly larger than its close relatives. These follow on from flat heads of white spring flowers. Hardy and suited to any well drained soil in good light.