Bagatska T. Kyiv litoral-water ecotone of recreation areas

The structure of flora ecotone was analysied. A new species of vascular aquatic plant Egeria densa Planchon was found and descripsion is given. The new locations of alien plants Artemisia argyi Leveil. et Vaniot,Elodea nuttallii L. were revealed. An essential oil Artemisia argyi was obtained and its component structure was determined, carpological especially of its seeds was studied.Rare and endangered species of litoral-water ecotone in recreation areas were identified.The dynamics of quarantine plants Ambrosia artemisiifolia and Cenchrus longispіnus spreading in areas of recreation was done. The features of morphological and ontogenetic Cenchrus longispіnus development were studied and sings for the erly diagnosis were identified.Genetic analysis allowed to determine that several types of Cenchrus can be in Kyiv. The identified group of halophytic plants can be recommended as indicators of soil salinity.