Floristic research in the northern part of Zaraysky district of the Moscow region

He article provides a floristic list of 297 species collected in 2019-2020. in the urban district of Zaraysk, Moscow region. The herbarium is kept in the Herbarium Fund (MNA). Revealed 37 species of plants, previously not indicated for this area. Four species are rare and endangered: Stipa pennata L., Gentiana cruciata L., Aster amellus L. and Rosa villosa L.; and 8 species are vulnerable and in need of constant monitoring - Juniperus communis L., Convallaria majalis L., Campanula trachelium L., C. persicifolia L., C. latifolia L., C. bononiensis L., Salvia pratensis L. and Pyrus communis L. (Red Data Book of the Moscow Region, 2018). The alien flora includes 26 taxa, including 11 invasive species: Acer negundo L., Heracleum sosnowskyi Manden., Bidens frondosa L., Echinocystis lobata Torr. et Gray, Amaranthus retroflexus L., Erigeron сanadensis L., Matricaria discoidea DC., Galinsoga quadriradiata Riiz et Pav., Impatiens parviflora DC., Populus alba L., Reynoutria × bohemica Chrtek et Chrtkova, as well as naturalizing - Aronia mitschurini Skvorts. et Maitulina, Caragana arborescens Lam., Parthenocissus incerta (A. Kern.) Fritsch. and etc.