The article contains information about a series of new locations for 18 species of vascular plants protected at the Federal or Regional levels. Of these, 5 species (Cypripedium calceolus, Epipogium aphyllum, Isoetes echinospora, I. lacustris, Lobelia dortmanna) are listed in the Red Book of Russia (2008) and 13 species (Allium schoenoprasum, Cornus suecica, Equisetum variegatum, Eupatorium cannabinum, Lonicera caerulea, Lunaria rediviva, Orobanche pallidiflora, Petasites frigidus, Pulsatilla patens, Ranunculus subborealis, Rosa mollis, Rubus humulifolius, Viola selkirkii) are listed in the Red Book of the Leningrad Region (2018). In addition, new information is provided on the location of species that are not subject to protection, but rare in the Region (Geranium bohemicum, Lilium martagon, Mimulus guttatus). Additional information on the distribution of protected and rare species can be used in the implementation of environmental protection measures and the adjustment of the boundaries of the planned protec