Abstract
The article presents the results of a comprehensive analysis of the distribution of Allium kujukense Vved., a rare paleoendemic species of the mountains of southern Kazakhstan, based on the study of herbarium materials and modern electronic databases. A total of 49 documented records were analyzed, including 43 herbarium specimens from collections in Kazakhstan (AA) and Russia (MW, LE), as well as the collections of the Institute of Plant Biology and Biotechnology (IPBB), and 6 occurrence records obtained from the electronic resources Plantarium and GBIF/iNaturalist. Comparison of data from different periods made it possible to clarify the spatial structure of the species’ range and to confirm its confinement to the Syrdarya Karatau mountain system (including the Boraldaytau Range) and several adjacent small mountain massifs of the Western Tien Shan, forming a mosaic and geographically restricted distribution area. The presented materials substantiate the importance of conducting targeted studies on the distribution and assessment of the feasibility of measures to protect this species.