Sorbus pseudomeinichii, known as false rowan and Catacol whitebeam, is a rare tree endemic to the Isle of Arran in south west Scotland. It is believed to have arisen as a hybrid of the native rowan and the cut-leaved whitebeam which is in turn a rowan/Arran whitebeam hybrid. Until 2020 only two specimens of the Catacol whitebeam were known, at the time making it the rarest tree not only in Scotland, but joint rarest in the world with Wood's cycad, both with only one specimen living. A third was recorded as a sapling, but is believed to have been destroyed by deer. A seedling and grafted plants have also been grown in Edinburgh.
Abies cilicica, also known as Cilician fir or Taurus fir, is a species of conifer in the family Pinaceae. It is found in Lebanon, Syria, and Turkey. Abies cilicica and Cedrus libani, together with Acer hyrcanum subsp. tauricolum and Sorbus torminalis subsp. orientalis, are the predominant trees in the phytocoenosis Abeti-Cedrion, a type of forest of the middle and eastern Taurus Mountains of Turkey. These forests occur between 800 and 2,100 meters elevation. Over 5,000 years of logging, burning, and grazing have reduced these forests to enclaves.
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.
Hedlundia arranensis, sometimes referred to as the Scottish or Arran whitebeam, is a species of plant in the family Rosaceae. It is endemic to the island of Arran in Scotland.
Karpatiosorbus bristoliensis is a species of flowering plant in the family Rosaceae. It is known commonly as the Bristol whitebeam. It is endemic to Great Britain, growing wild only in the Avon Gorge and in the Leigh Woods area of Bristol. There are around 300 individuals as of 2016, and the population is thought to be increasing.
Sorbus decipiens, the sharp-toothed whitebeam, is a species of plant in the family Rosaceae. It is endemic to Germany.
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.
Aria × leptophylla, commonly known as the thin-leaved whitebeam, is a species of plant in the family Rosaceae. It is endemic to Wales.
Sorbus maderensis, a rowan, is a species of plant in the family Rosaceae. It is endemic to Madeira. It is threatened by habitat loss.
Sorbus pseudofennica is a species of plant in the family Rosaceae. Endemic to the Isle of Arran in Scotland, it is threatened by habitat loss. It is thought to be a naturally occurring hybrid between S. arranensis and S. aucuparia, probably with additional backcrossing with S. aucuparia. Sorbus arranensis is itself a hybrid between S. rupicola and S. aucuparia. Apomixis and hybridization are common in some groups of Sorbus species.
Sorbus pseudothuringiaca is a species of flowering plant in the family Rosaceae. It is a small tree endemic to Bavaria in Germany, where it is found growing on rocky or forested areas.
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.
Sorbus velebitica is a species of plant in the family Rosaceae. It is endemic to Croatia.
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.
Sorbus wallichii is a species of plant in the family Rosaceae. It is found in China, India, and Nepal.
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.
Karpatiosorbus devoniensis is known by the English name of Devon whitebeam and formally as Broad-leaved Whitebeam. When the fruit was reported as sold at Barnstaple Pannier Market the name French Eagles was used, apart from 1929 when they were reported as eagle-berries. When the trees were reported as seen growing wild on botanical walks they were referred to as French Hails. Broad-leaved white-beam, which was the common name until Devon Whitebeam took over, was used once in 1907. The term Otmast was used once as a pet name, as its true identity was not known. It is a species of whitebeam, trees and shrubs in the family Rosaceae. It is endemic to the British Isles, growing wild in areas of Devon, Cornwall, Somerset and south-east Ireland as a native and north-east Ireland as an introduction.
Aria porrigentiformis, commonly known as the grey-leafed whitebeam, is a species of whitebeam endemic to England and Wales.
Sorbus arvonensis, called the Menai Strait whitebeam or Cerddin Menai, is a whitebeam species in the rose family. It is native to a restricted area along the shore of the Menai Strait in North Wales. The species was first described by Sell (2014) and has been assessed as Critically Endangered.
