Sorbus is a genus of over 100 species of trees and shrubs in the rose family, Rosaceae. Species of Sorbus (s.l.) are commonly known as whitebeam, rowan, mountain-ash and service tree. The exact number of species is disputed depending on the circumscription of the genus, and also due to the number of apomictic microspecies, which some treat as distinct species, but others group in a smaller number of variable species. Recent treatments classify Sorbus in a narrower sense to include only the pinnate leaved species of subgenus Sorbus, raising several of the other subgenera to generic rank.
The Botanical Society of Britain and Ireland (BSBI) is a scientific society for the study of flora, plant distribution and taxonomy relating to Great Britain, Ireland, the Channel Islands and the Isle of Man. The society was founded as the Botanical Society of London in 1836, and became the Botanical Society of the British Isles, eventually changing to its current name in 2013. It includes both professional and amateur members and is the largest organisation devoted to botany in the British Isles. Its history is recounted in David Allen's book The Botanists.
Karpatiosorbus latifolia is a species of whitebeam that is endemic to the area around Fontainebleau, south of Paris in France, where it has been known since the early eighteenth century.
The Arran whitebeams are species of whitebeam endemic to the island of Arran, Ayrshire, Scotland.
Sorbus anglica, the English whitebeam, is a species of whitebeam tree in the family Rosaceae. It is uncommonly found in Ireland and the United Kingdom, with an entire British population estimated at about 600 individuals.
Aria eminens, commonly known as the round-leaved whitebeam, is a species of plant in the family Rosaceae. It is endemic to Great Britain and is threatened by habitat loss.
Karpatiosorbus subcuneata, the Somerset whitebeam, is a species of plant in the family Rosaceae. It is endemic to coastal north Devon and west Somerset in the United Kingdom. It is threatened by habitat loss.
Aria vexans, commonly known as bloody whitebeam, is a rare species of tree in the family Rosaceae. It is endemic to England and is found along the coast between Culbone in Somerset and an area just west of Trentishoe in Devon. It can be seen in the Exmoor National Park. It is threatened by habitat loss.
Aria wilmottiana, commonly known as Willmott's whitebeam, is a species of whitebeam in the family Rosaceae. It is endemic to England, and is found in the Avon Gorge, in Somerset and Gloucestershire. It is threatened by habitat loss.
Aria edulis, the whitebeam or common whitebeam, is a species of deciduous tree in the family Rosaceae. It is native to most of Europe as well as North Africa and temperate Asia. Typically compact and domed, with few upswept branches and almost-white underside of the leaves, it generally favours dry limestone and chalk soils. The hermaphrodite cream-white flowers appear in May, are insect pollinated, and go on to produce scarlet berries, which are often eaten by birds.
Sorbus × hybrida, the oakleaf mountain ash, Swedish service-tree or Finnish whitebeam, is a hybrid species of whitebeam native to Norway, eastern Sweden, southwestern Finland, and locally in Latvia.
Karpatiosorbus admonitor, previously classified as Sorbus admonitor and also called the no parking whitebeam, is a species of whitebeam tree found in Devon, United Kingdom. It is known only from the Watersmeet Valley at Lynton, with two stray plants growing on the coast above Sillery Sands, Countisbury.
Michael Charles Faraday Proctor PhD was an English botanist and plant ecologist, lecturer, scientific author based at the University of Exeter. He retired from his post as Reader in Plant Ecology at Exeter University in 1994.
Torminalis is a genus of plants in the rose family Rosaceae. The genus Torminalis was formerly included within the genus Sorbus, as the section Torminaria, but the simple-leafed species traditionally classified in Sorbus are now considered to form a separate monophyletic group. It is monotypic, being represented by the single species, Torminalis glaberrima, commonly known as wild service tree, chequers, and checker tree. is native to Europe, parts of northern Africa and western Asia.
Aria hibernica, commonly known as Irish whitebeam, is a species of whitebeam endemic to Ireland. It occurs in most counties, usually as scattered individuals, or in small groups.
Aria porrigentiformis, commonly known as the grey-leafed whitebeam, is a species of whitebeam endemic to England and Wales.
Sorbus scannelliana, Scannell's whitebeam, is a species of whitebeam endemic to Ross Island near Killarney in southwest Ireland. It is one of the rarest tree species in the world; only five individual plants are known.
Aria leighensis, commonly known as Leigh Woods whitebeam, is a rare species of whitebeam, a flowering plant in the|rose family Rosaceae.
Karpatiosorbus is a genus of flowering plants in the family Rosaceae, native to Europe, including Crimea, and Algeria. Shrubs or small trees, they appear to have arisen via hybridization events between the clades Aria(Pers.) Host and TorminalisMedik. Many of its species propagate solely by apomixis.
