Sorbus or uncertain parentage, have gained the Royal Horticultural Society’s Award of Garden Merit: 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
Mountain Ash East Newtown, Caegarw, Cwmpennar and Cefnpennar. According to the 2011 UK Census Mountain Ash East had a population of 2,909. Mountain Ash East includes the village's Grade II listed St Margaret's Church, designed by John Pollard Seddon. An electoral ward of Mountain Ash East pre-existed the community. The ward elects one county councillor to Rhondda Cynon Taf County Borough Council. Since 1995 the ward has been represented on the council by Plaid Cymru councillor, Pauline Jarman, who was previously a councillor on Cynon Valley Borough Council. She first stood for election in 1976. Cllr Jarman has been leader of the Plaid