[Initial stages of the root system development in three Impatiens species (Balsaminaceae family)].

Peculiarities of the development of morphological and anatomical structures of the root system have been studied in the seedlings of three Impatiens species at the early and subsequent stages of their ontogenesis. Correspondence between the revealed structure and the ecological originality of species, especially in the case of the aboriginal touch-me-not balsam, whose allorhizy can be revealed only at the anatomical level, is discussed.