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 the Sorbus subgenus Sorbus. Rowans are unrelated to the true ash trees, which belong to the genus Fraxinus, family Oleaceae, though their leaves are superficially similar. 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 some countries, but Sorbus domestica, for example, is now all but extinct in Britain, where it was traditionally revered. Natural hybrids, often including Sorbus aucuparia and the whitebeam, Sorbus aria, give rise to many endemic variants in the UK. 2Names The traditional names of the rowan are those applied to the species Sorbus aucuparia, Sorbus torminalis (wild service-tree), and Sorbus domestica (true service-tree). The Latin name sorbus was borrowed into Old English as syrfe. The name "service-tree" for Sorbus domestica is derived from that name by folk etymology. The Latin name sorbus is from a root for "red, reddish-brown" (PIE *sor-/*ser-); English sorb is attested from the 1520s in the sense "fruit of the service tree", adopted via French sorbe from Latin sorbum "service-berry