Rowan Several of the Asian species are widely cultivated as ornamental trees. North American native species in the subgenus "Sorbus (Sorbus)" include the American mountain-ash "Sorbus americana" and Showy mountain-ash "Sorbus decora" in the east and Sitka mountain-ash "Sorbus sitchensis" in the west. Numerous hybrids, mostly behaving as true species reproducing by apomixis, occur between rowans and whitebeams; these are variably intermediate between their parents but generally more resemble whitebeams and are usually grouped with them (q.v.). Rowans are excellent small ornamental trees for parks, gardens and wildlife areas. Several of the Chinese species, such as White-fruited rowan ("Sorbus glabrescens") are
Mountain Ash, Rhondda Cynon Taf Mountain Ash, Rhondda Cynon Taf Mountain Ash () is a town (and former community) in the Cynon Valley, within the County Borough of Rhondda Cynon Taf, Wales. At the 2001 census, Mountain Ash had a population of 7,039 increasing to 7,374 at the 2011 Census. The Mountain Ash geographical area incorporates and includes the districts and villages of Cefnpennar, Cwmpennar, Caegarw, Darranlas, Fernhill, Glenboi and Newtown. Mountain Ash lies within the historic county boundaries of Glamorgan. The town lies about 4.5 miles south of the town of Aberdare and approximately 19 miles northwest of Cardiff. The village and community of