Abstract
<jats:p>The Kyrgyz Alatau is the westernmost range of the Northern Tien Shan. The western part of the northern ma-croslope of the range, with absolute heights of up to 3,700 metres above sea level, is located within Kazakhstan. This mountainous country is characterised by a “Kyrgyz type of altitudinal zonality”, reflecting a connection with the vegetation of the Western Tien Shan. After identifying herbarium and expedition specimens, the revised checklist of the genus Allium L. includes 25 taxa, including the rare species A. suworowii and two subendemics (A. margaritae, A. trachyscordum). An analysis of the phytocenotic and altitudinal distribution of habitats of 19 species of the genus Allium L., identified during 2024-2025 in 14 gorges of the northern macroslope of the Kyrgyz Alatau range showed that their distribution in the mountains begins with the savannoid and meadow steppe subbelts, continues with the belt of juniper woodland belt, the belt of subalpine meadows and prostrate juniper thickets, and ends with the alpine belt of cryophytic meadows and communities of kobresia. The gorges of the western low- and mid-mountain part of the range are characterised by species diversity of onions: Sogety, Makpal, Ulken Almaly, Tastambek, Uzynbulak, as well as the Karakystak gorge located to the east, where 5 to 6 species of onions are found. Based on showing the locations of 19 identified wild species of the genus Allium L. on the northern macroslope of the studied range was created.</jats:p>