The book contains research papers of the 16th International Scientific and Practical conference «Problems of Botany of South Siberia and Mongolia» in the following directions: geobotany and resource management; study of vegetation in Altai, Siberia and Mongolia; molecular methods of studying plants and chemosystematics; morphology and biology of individual species; plant protection; the role of botanic gardens in the study and reservation of plant biodiversity; flora of southern Siberia, Mongolia and neighboring countries; plant ecology and phytoindication; systematics of individual taxa.For specialists in the field of botany, ecology, environmental protection and for all interested in questions of the study, protection and rational use of flora.