Study methods of populations of the rare species of Hedysarum L

The article deals with the basic ways, methods and methodology of the complex study of the population of the rare species of the plants of Hedysarum L. The studied morphological characteristics, the population, ontogenetic and genetic structure of the populations of Hedysarum L. (the section Multicaulia, the subsection Subacaulia) give the representation of the state of the population of Hedysarum L.