Consideration of the generic spectrum of flora is one of the elements of a general analysis of the flora of the study area. It allows to identify individual traits to a greater extent than the analysis of the family spectrum. The study of phytodiversity at the level of floras will allow in the future to clarify the patterns of their territorial location. Samara-Ulyanovsk Volga region is the territory within two administrative regions (Samara and Ulyanovsk) belongs to the Middle Volga region. It is very diverse in natural conditions.
