On vascular flora of the Olonetsky Federal Nature Reserve (Republic of Karelia)

Abstract

Olonetsky Nature Reserve (Zakaznik), located in Southern Karelia, was established in 1986 in an area of 27000 hectares. Surveys have detected 447 species of vascular plants, including 372 (83,2 %) native and 75 (16,8 %) alien ones. The shore dunes and sandy beaches of Lake Ladoga, as well as black alder swamps in depressions between ancient levees harbored the most distinctive flora. Festuca sabulosa, Hypopitys monotropa, Jovibarba globifera, Oenanthe aquatica, and Viola stagnina are red-listed in Karelia; seven more species are in need of monitoring. The spread of the aggressive invasive species Rosa rugosa is of particular concern.