Sorbus Sorbus Sorbus is a genus of about 100–200 species of trees and shrubs in the rose family, Rosaceae. Species of "Sorbus" ("s.l.") are commonly known as whitebeam, rowan, service tree, and mountain-ash. The exact number of species is disputed depending on the circumscription of the genus, and also due to the number of apomictic microspecies, which some treat as distinct species, but others group in a smaller number of variable species. Recent treatments treat "Sorbus" in a narrower sense to include only the pinnate leaved species of subgenus "Sorbus", raising several of the other subgenera to generic rank. "Sorbus" is
Mountain Ash East Mountain Ash East Mountain Ash East is a community and coterminous electoral ward in Rhondda Cynon Taf, Wales. It primarily includes the part of the village of Mountain Ash east of the River Cynon. The community was formed in 2016 when the larger community of Mountain Ash was divided into East and West to match the ward boundaries. The Mountain Ash East community came into effect on 1 December 2016 following the enactment of "The Rhondda Cynon Taf (Communities) Order 2016". It includes the village of Mountain Ash to the east of the River Cynon and also the villages of