Results of comparative analysis of some characteristics of Iris pumila L. and habitat conditions of the species in Saratov region

The article presents the results of the use of cluster analysis to characterize 15 coenopopulations of Iris pumila L. in Saratov region, using generative traits (the color of the flowers and the barbule, the diameter of the flower, the height of the footstalk with the flowers and the footstalk to the ovarium, the length of the perianth tube, bract, the length and width of limb of inner perianth lobe, the length and width of inner perianth lobe, the length and width of external perianth lobe) and the physical-geographical conditions (height of the surface, slope exposure, distance from the Volga River) in which the populations are located. Cluster analysis was carried out separately on the basis of only generative traits and separately taking into account physical and geographical conditions. For the studied coenopopulations of I. pumila , a relationship between the physical and geographical conditions in which they are located, and the values of the generative organs of plants of this species have not been established.