Аннотация:The florogenetic analysis is of apparent interest as seemingly homogeneous groups and floristic complexes when analyzed in detail display different temporal relations. Practically all species considered belong to areals within a subtropical wood zone. The formation of these species is necessary, obviously, to the end eocene – beginning oligocene. They, Epimedium pinnatum exluding, have the close relatives in Northern America and Southeast Asia. As for Ostrya carpinifolia, Periploca graeca and Scopolia carniolica we find close types in the Far East – O. japonica, P. sepium, S. japonica. As for Smilax excelsa and Prunus laurocerasus it is possible to specie affined species withing the of section. The isolation of similar groups from arctic-tertiary ancestors most likely took place not later than miocene. It is interesting, that these species tend to mesotemperature woods. As a whole, our data do not contradict N.I. Kusnetzov's and M.G. Popov's ideas about a arctic-tertiary moderate – subtropical orgin of colchis of woods having resulted in the woods of the Northwest Transcaucasus, though some definite florogenetic heterogeneity takes place.