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The rowans (/ ˈ r aʊ ə n z / ROW-ənz or / ˈ r oʊ ə n z / ROH-ənz) [1] 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. [2]
The tree species Sorbus americana is commonly known as the American mountain-ash. [4] It is a deciduous perennial tree, native to eastern North America. [5]The American mountain-ash and related species (most often the European mountain-ash, Sorbus aucuparia) are also referred to as rowan trees.
Green’s mountain ash (S. scopulina) is native to the mountains from Alaska to California, and east to the Rocky Mountains and Northern Great Plains. It grows as a multi-stemmed shrub that is ...
Sorbus aucuparia, commonly called rowan (/ ˈ r oʊ ən /, [3] also UK: / ˈ r aʊ ən /) and mountain-ash, is a species of deciduous tree or shrub in the rose family. The tree has a slender trunk with smooth bark, a loose and roundish crown, and its leaves are pinnate in pairs of leaflets on a central vein with a terminal leaflet.
Sorbus is a genus of over 100 species of trees and shrubs in the rose family, Rosaceae.Species of Sorbus are commonly known as rowan or mountain-ash.The genus used to include species commonly known as whitebeam, chequer tree and service tree that are now classified in other genera (see below).
Mountain-ash or rowan, several rose shrubs or trees in the genus Sorbus Australian mountain ash or stringy gum ( Eucalyptus regnans ), a forest tree Topics referred to by the same term
It is a shrub or small tree growing up to 5 metres (16 feet) tall. Its pinnate leaves have 9–13 leaflets. [2] The flowers have five white-to-cream petals, each a few centimetres in length. The fruit is an orange-to-red pome about 1.5 cm (1 ⁄ 2 inch) across. [2] The plant can be confused with poisonous baneberries, [3] particularly the red ...
The mountain ash has a leaf made up of a number of leaflets, whilst the whitebeam leaf is entire and doesn't even have lobes. The result of crossing the two is that the hybrids begin to merge or mix characteristics, so that S. arranensis has lobes but no leaflets, while S. pseudofennica , having an extra cross with the "leafleted" mountain ash ...