Flora of Rare Vascular Plant Species in the Regional Landscape Parks of the Ukrainian Polissia

The analysis of rare vascular plant types in the territories of regional landscape parks within the Ukrainian Polissia was carried out. The results of a systematic analysis of the flora of rare species of vascular plants on the territory of five regional landscape parks of the Polish part of Ukraine are presented, in particular: Pripyat-Stokhid, Nadsluchanskyi, Ptashiny Rai, Mizhrichenskyi, Yalivshchyna.According to the taxonomic structure, they belong to 199 species, 141 genera, and 64 families. It was found that the majority of regionally rare species are characterized by small areas of localities with a sporadic or scattered-diffuse spatial arrangement, a relatively low number of individuals. The conservation status of regionally rare plant species according to the IUCN categorization has been determined. According to it, established plant species belong to six categories of danger and are distributed as follows: CR (critically endangered species) – 1, EN (endangered species) – 22, VU (vulnerable species) – 32, NT (species approaching extinction) – 126, LC (a species requiring attention) – 14, DD (a species not sufficiently researched) – 4. The obtained research results will serve as a basis for ecological phytomonitoring and zoological management at the regional level.