Приводятся сведения о сосудистых растениях, впервые обнаруженных в Пензенской обл. - 16 видов, в Самарской обл. - 7 видов, в Ульяновской обл. - 14 видов, в Республике Мордовия - 2 вида.

The article presents a list of invasive and potentially invasive plants in the flora of the Middle Volga region (in Samara oblast and Ulyanovsk oblast) for the first time. The list includes 59 species distributed in groups according to their activity, features of interaction with native species, and the nature of occupied habitats. For most species, the time of entry to the flora of the region is found. Some theoretical aspects of the introduction of blacklists are discussed.

Приводится дополнение к «Конспекту флоры Восточной Европы. Т. 1» (2012) по Среднему Поволжью и сопредельным регионам.

Reports on the findings of new and rare invasive species in the flora of the Middle Volga Region (Samara and Ulyanovsk oblasts and Tatarstan) are presented. Most of the plants were found on railway embankments and in flower beds and lawns, as well as on the coast of the Kuybyshev and Saratov reservoirs.