Cypripedium calceolus
The most taxonomically diverse vascular plant families are Asteraceae, Cyperaceae, Poaceae and Rosaceae. By far the most diverse genus is "Carex" (68 species). The diversity in genera "Hieracium" (with "Pilosella"), "Ranunculus" (with "Batrachium"), "Alchemilla", "Galium", "Potamogeton", "Salix", "Veronica", "Viola", "Juncus", "Artemisia", "Potentilla", "Rumex", "Festuca", "Epilobium", "Poa", "Trifolium", "Campanula", "Vicia", "Lathyrus", "Geranium" is also considerable. The territory has no endemic plant taxa. Vascular plant species of Leningrad Oblast listed in the red data book of Russia are "Botrychium simplex", "Cephalanthera rubra", "Cypripedium calceolus", "Epipogium aphyllum", "Lobelia dortmanna", "Myrica gale", "Ophrys insectifera", "Orchis militaris", "Pulsatilla pratensis", "Pulsatilla vernalis".