The results of studying the flora of solid waste landfills in six cities of the Yaroslavl region in 2000–2023 are presented. 177 alien plant species of 42 families were identified, among them 23 species recorded for the first time. The most representative were the Asteraceae family (31 species), Rosaceae (21 species) and Poaceae (16 species). The species richness rates vary from 35 to 118 alien plant species in different landfills. The spread of alien species is analyzed in 7 solid waste landfills.

N.A. Tremasova