Ecological and biological features of Triglochin maritima L. in the biotopes of the littoral zone with different degree of flooding on the coast of the White Sea

The study of Triglochin maritima L. was carried out on the Pomor (western) coast White Sea, in Republic Karelia (64°22'81"N, 35°93'14"E). Morphological analysis aboveground and underground parts clones performed virginal plants. Anatomical leaf sheaths current year shoots, rhizomes adventitious roots out. viability pollen assessed by determining relative share normally developed malformed grains. content heavy metals determined soil, sea water plant samples. a model transect littoral zone three test plots representing lower littoral; middle upper zones. Adaptation to wave storm impact manifested well-developed system organs. In littoral, part surpasses vegetative organs terms mass formation mechanical tissues. This allows plants anchor stronger substrate. Pollen confirmed adaptability T. conditions high percentage normal and, consequently, fertile pollen, which ensures sexual reproduction species. can be considered as Fe hyperaccumulator accumulates very levels (22–34 g kg-1), especially zones, both ability actively deposit revealed basis coefficient biological absorption makes it possible suggest potential possibility using species phytoremediation technologies coastal territories.