Аннотация
The article gives information on the distribution of four rare species (Hepatica falconeri, Kaufmannia semenovii, Neuroloma beketovii, Gymnospermium altaicum) with brief abundance data and state of populations. This studies based on the materials of many years researches carried out by the authors on the territory of two state national natural parks (SNNP) of the Northern Tien Shan (Ile Alatau and Kolsai Kolderi). Nine species (Gagea turkestanica, Bunias orienta-lis, Viola dissecta, Clinopodium integerrimum, Melissa officinalis, Sambucus nigra, Hieracium pilosella, Lapsana intermedia and Xanthium spinosum) were first found on surveyed areas, which allows supplementing the existing publications on the flora of the national parks Ile Alatau and “Kolsai Kolderi”, as well as the Kungei Alatau ridge. Three of them (Gagea turkestanica, Viola dissecta, Clinopodium integerrimum) are native to this area, which indicates that the flora of the region is not well studied. Six others (Bunias orientalis, Melissa officinalis, Sambucus nigra, Hieracium pilosella, Lapsana intermedia and Xanthium spinosum) are alien species, which confirms the ongoing process of synanthropization of the flora of the Northern Tien Shan even within specially protected natural areas.