Ecological Systems and Devices Annotation << Back Features of Introduction of Growing Decorative Perennials of the Genus Iris L. in the Conditions of the Kuzbass Botanical Garden Tsandekova O.L., Vronskaya O.O. The article presents the results of morphological and biological observations and biochemical parameters of decorative rhizome perennials of the genus Iris L. of the Iridaceae family, growing in the conditions of the Kuzbass Botanical Garden. Species specifi city was established for the duration of the growing season and the level of accumulation of antioxidants in the leaves of decorative herbaceous perennials: I. aphylla > I. halophila > I. chrysographes > I. ruthenica > I. pseudacorus. The revealed rearrangements in the functioning of the antioxidant system of irises allow us to consider them as adaptive and protective reactions aimed at their survival and decorative qualities in the environment. The studied parameters can be used as an informative parameter for assessing the state of plants in the introduction. Keywords: irises, phenological observations, decorativeness, vegetative period, ascorbic acid, tannins, peroxidase. DOI: 10.25791/esip.4.2024.1445 Pp. 49-56.