On the basis of results of the carried-out research works and the analysis of scientific materials it is established that the dendroflora of the Nakhchivan Autonomous Republic consists of 439 species, 5 variations and 2 forms belonging to 141 genera, 62 families, 44 rows, 4 classes and 3 divisions. Thus, 446 taxons, from them 151 trees, the 180 bushes, 39 semi-bushes, 22 low shrubby, 42 undershrubs and 12 lianas contain the dendroflora structure of this territory. 107 species are met in the culture, and 339 species in natural conditions.