Complex comparative morphological investigation of different representatives of
Larix was carried out the taxonomic value of some characters vegetative and
reproductive organs. In this study the needle anatomy of 12 Larix species were
investigated. The results showed that the shape of the needle in cross-section, the
presence of secretory structures and the number of hypodermis layers on the lateral margin of needles are of taxonomic and diagnostic value at the species level. We have also been checked the taxonomic status and geographical distribution of some critical taxa). Larix archangelica x L. dahurica was found in the Yamal-Nenets autonomous district. Hybridogeneous nature of larch, growing in Kamchatka and the need to describe it as a separate species are confirmed. It is found that a typical section Larix by the morphology of vegetative and reproductive organs are clearly divided into 4 groups.