EN
The study was carried out in 2011–2013 at selected complexes of Molinia meadows located in Bagno Bubnów (Polesie National Park). Tested complexes were characterized by the dominance of Molinia meadows, which bordered to other plant communities. The study area was characterized by a large number of plant species under strict and partial protection. Ostericum palustre, species protected by Habitat Directive occurred in all complexes. A total of 107 plant species in the Selino-Molinietum caeruleae association were noted. Greater biodiversity was characterized by meadows situated in the Polesie National Park compare to the private one. It should be noted that the private Molinia meadows which directly adjacent to the Polesie National Park are mostly well-preserved habitats, involving protected plant species.