Sorbus tianschanica

Description

Sorbus tianschanica is a species of rose. This was first described by Franz Josef Ivanovich Ruprecht. Sorbus tianschanica belongs to the genus Sorbus, and family Rosaceae. The IUCN classifies the species as least related. Sorbus is a genus of over 100 species of trees and shrubs in the rose family, Rosaceae. Species of Sorbus 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. Sorbus is not closely related to the true ash trees which belong to the genus Fraxinus, although the leaves are superficially similar.