Preservation of natural populations of the species of Hedysarum L. at the territory of the Volgograd region

On the basis of the conducted studies the fundamental limiting factor, influencing on the preservation of the rare species of the Hedysarum, that is vegetated at the territory of the Volgograd region, is the degree of the overgrowing of the locality. The populations are viable in case of the sufficient amount of the generative species that provide the seed reproduction