The article systematically examines 85 species of astragalus gathered among 2 sorts of Fabaceae Lindl. family: Astracantha Podlech and Astragalus L. which are spread in the area of Nakhchivan AR, and their development and formation in the historical-evolutionary process and their areal types are shown in the article. It has been known that most of the existing types of Astracantha and Astragalus are included into classes and groups as Atropatan, Northern İran, Asia Minor Front Asia. The investigation of geographical elements, their groups and classes makes it possible to learn out the flora genetically or historically, to be more true, to learn out the ways, the time and the place where the types have come from to this area.