Rowan some countries, but "Sorbus domestica", for example, has largely vanished from Britain, where it was traditionally appreciated. Natural hybrids, often including "Sorbus aucuparia" and the whitebeam, "Sorbus aria", give rise to many endemic variants in the UK. 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"
North Fork Mountain pine barren in the Central Appalachians. Other rocky summits, including the summit of Pike Knob, are blanketed by red pine ("Pinus resinosa") forests, here at their southernmost natural occurrences. The Monongahela National Forest has designated of old growth red pine forest on the mountain as the North Fork Mountain Red Pine Botanical Area. Another unusual vegetation type on North Fork Mountain is an elfin forest dominated by yellow birch ("Betula alleghaniensis"), mountain ash ("Sorbus americana"), and mountain holly. The oak-and-pine vegetation of North Fork Mountain contrasts strongly with the more diverse vegetation of the nearby mountains just west of the