Phytocenological features of juniper species in Ardijdag sparse juniper forest in Sharur district and their role presented in the article. According to the used literature and us researches, Gymnosperm plants in the territory of Nakhchivan AR are represented by 2 divisions, 2 classes, 3 rows, 3 families, 7 genera and 13 species, 7 of which belong to the cultural flora. According to the researches held in sparse juniper forests in the Ardijdag area, there were not found spices belonging to Pinaceae Adans. family, but 2 spices of Juniperus L. genera of Cupressaceae S.F. Gray family, and only one spice named Ephedra aurantiaca Takht. et Pachom. belonging to the Ephedraceae Dumort. family were determined. In phytocenoses of the sparse juniper forest Juniperus polycarpos C.Koch. species is edificatory, and the subdominant species is Juniperus foetidissima Willd. All formations and associations of phytocenoses in a rocky biotope were discovered and presented.