Rowan Rowan The rowans or mountain-ashes are shrubs or trees in the genus "Sorbus" of the rose family, Rosaceae. They are native throughout the cool temperate regions of the Northern Hemisphere, with the highest species diversity in the mountains of western China and the Himalaya, where numerous apomictic microspecies occur. The name "rowan" was originally applied to the species "Sorbus aucuparia" and is also used for other species in "Sorbus" subgenus "Sorbus". Formerly, when a wider variety of fruits were commonly eaten in Europe and North America, "Sorbus" was a domestically used fruit throughout these regions. It is still used in
Sorbus randaiensis Sorbus randaiensis Sorbus randaiensis is a deciduous tree of family Rosaceae. It is an endemic species in Taiwan and can be found in the mountain areas of middle Taiwan, with altitude 1,800m to 3,200m, mostly spotted in the forest of Xueshan, Hehuan Mountain, , and Nenggao Mountain. It is a tree 3–8 m tall with white flowers and reddish fruit. Koidz., The Journal of the College of Science, Imperial University of Tokyo, Japan 34(2): 52. 1913. (J. Coll. Sci. Univ. Tokyo) Its species epithet "randaiensis" implies that the first type specimen was collected at Randaien Mountain, and to some degree