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 Himalaya, southern Tibet and parts of western China, 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 genus Sorbus.
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.
Cormus domestica, commonly known as service tree or sorb tree, is a species of tree native to western, central and southern Europe, northwest Africa, and southwest Asia. It may be called true service tree, to distinguish it from wild service tree. It is the only species in the monotypic genus Cormus.
Chamaemespilus is a genus of shrubs in the family Rosaceae. It is monotypic, being represented by the single species Chamaemespilus alpina, commonly known as false medlar or dwarf whitebeam. It is native to the mountains of central and southern Europe, from the Pyrenees east through the Alps to the Carpathians and the Balkans, growing at altitudes of up to 2500 m.
Paliurus is a genus of flowering plants in the family Rhamnaceae. The eight species are native to warm, dry regions of Eurasia and North Africa from Morocco and Spain east to Japan and Taiwan.
Sorbus commixta, the Japanese rowan, is a species of flowering plant in the family Rosaceae, native to central and eastern China, Korea, Japan, and Sakhalin.
Scandosorbus intermedia or, formerly, Sorbus intermedia, the Swedish whitebeam, is a species of whitebeam found in southern Sweden, with scattered occurrences in Estonia, Latvia, easternmost Denmark (Bornholm), the far southwest of Finland, and northern Poland.
Hedlundia hybrida, the oakleaf mountain ash, Swedish service-tree or Finnish whitebeam, is a species of whitebeam native to Norway, eastern Sweden, south-western Finland, and locally in Latvia.
Alniaria alnifolia, also called alder-leafed whitebeam, Korean whitebeam, or Korean mountain ash, Korean: 팥배나무; RR: Patbaenamu; MR: p'atpaenamu; lit. 'red bean pear tree' Chinese: 水榆花楸; pinyin: shui yu hua qiu; lit. 'water elm rowan', is a species of whitebeam native to eastern Asia in eastern and northern China, Taiwan, Korea and Japan.
Malinae is the name for the apple subtribe in the rose family, Rosaceae. This name is required by the International Code of Nomenclature for algae, fungi, and plants, which came into force in 2011 for any group at the subtribe rank that includes the genus Malus but not either of the genera Rosa or Amygdalus. The group includes a number of plants bearing commercially important fruits, such as apples and pears, while others are cultivated as ornamentals.
Alniaria folgneri, Folgner's whitebeam, is a species of flowering plant in the family Rosaceae, native to central China. A small tree, the abaxial side of its soft leaves are covered in a silvery-white tomentose layer. Its autumn foliage often turns golden pink, set off by the white undersides, but the intensity of the color varies from year to year. Its cultivar 'Emiel' has gained the Royal Horticultural Society's Award of Garden Merit.
Micromeles is a genus of flowering plants belonging to the family Rosaceae.
Alniaria is a genus of flowering plants in the family Rosaceae, native to China, Taiwan, Korea, Japan, and Far Eastern Russia. It was split off from Sorbus in 2018.
Hedlundia is a genus of plants in the rose family. They are shrubs or small trees that have a hybrid origin involving crosses between Aria and Sorbus sensu stricto. There are about 48 species are distributed across central, western and southern Europe, Scandinavia, Turkey, the Caucasus, Crimea, and also central Asia. The term Hedlundia was published in 2017.
Thomsonaria is a genus of flowering plants in the rose family, Rosaceae. It includes 26 species native to Asia, ranging from the eastern Himalayas to southern China, Indochina, Peninsular Malaysia, and Sumatra.
Griffitharia is a genus of flowering plants in the rose family, Rosaceae. It includes 19 species native to Asia, ranging from Afghanistan along the Himalayas to Myanmar and central China.
Normeyera is a genus of flowering plants in the rose family, Rosaceae. It includes nine species native to west-central Europe, ranging from France through Switzerland, Germany, Austria, and Czechoslovakia to Poland.
Wilsonaria megalocarpa is a species of flowering plant in the rose family, Rosaceae. It is a tree native to southeastern Tibet and south-central China. It is the sole species in genus Wilsonaria.
