Current status of the rare component of the urban flora of Kharkiv

Abstract

The article presents data on the current status of the rare component of the urban flora of Kharkiv and objects of the nature reserve fund (NRF). Within limits of the city, there are 15 objects and areas of the NRF, including 2 areas of national significance, 2 areas of local significance, and 11 botanical monuments of nature. It is established that rare vascular plants cover 14.4% of the entire floristic composition of the natural fraction of the urban flora and 6.1% of the flora of the city as a whole. 67 rare species of plants under protection have been identified: 17 of them are listed in the Red Book of Ukraine, 9 of them are listed in the Convention for International Trade with Endangered Species (CITES), 4 of them are listed in the Berne Convention; 65 of them are included in the regional list of the Kharkiv region. A phytocenotic analysis was conducted, and it has been established that the phytocenotic structure of the rare component of Kharkiv urban flora is represented by almost all the phytocenotic groups growing in the suburban zone of the city. The ecotopological differentiation of rare plant species within the territory of natural floristic complexes has been analyzed. Maps of distribution for all rare species of plants have been plotted. A substantiation of the object of the Novozhanove nature reserve fund has been provided.