Sorbus arranensis rupicola") which is still found on Holy Isle. This hybrid species interbred with the rowan/mountain ash ("Sorbus aucuparia") to produce "S. arranesis". The bastard mountain ash ("Sorbus pseudofennica") arose from a further cross between "S. arranensis" and the mountain ash ("S. aucuparia"). Smart showed by using physical characteristics that the species were separate and not a result of random variation. Some overlap does however occur and this suggests that some hybridising may occur between the two species. Sorbus arranensis Sorbus arranensis, sometimes referred to as the Scottish or Arran whitebeam is a species of plant in the family Rosaceae. It
Sorbus not closely related to the true ash trees which belong to the genus "Fraxinus", although the leaves are superficially similar. As treated in its broad sense, the genus is divided into two main and three or four small subgenera (with more recent generic assignments in parentheses): "Sorbus" species are used as food plants by the larvae of some moth species—see list of Lepidoptera that feed on "Sorbus". "Sorbus domestica" is used to flavour some apple wines, see "Apfelwein. "Sorbus" species are cultivated as ornamental trees for parks and gardens, and have given rise to several cultivars. The following, of mixed