Rowan is attested from the 1520s in the sense "fruit of the service tree", adopted via French "sorbe" from Latin "sorbum" "service-berry". "Sorbus domestica" is also known as "whitty pear", the adjective whitty meaning "pinnate". The name "mountain-ash" for "Sorbus domestica" is due to a superficial similarity of the rowan leaves to those of the ash, not to be confused in "Fraxinus ornus", a true ash that is also known as "mountain ash". "Sorbus torminalis" is also known as "chequer tree"; its fruits, formerly used to flavour beer, are called "chequers", perhaps from the spotted pattern of the fruit. The name
Mountain Ash East Cymru group on Rhondda Cynon Taff Council since 1996. The Plaid Cymru numbers doubled to 18 after the May 2017 election and are the official opposition on the council. 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