Новые чужеродные виды сосудистых растений в Магаданской области

The data on the locations of 15 species of vascular plants alien to the Magadan Oblast flora are presented. Of greatest interest are the findings of Barbarea arcuata, actively settling on Magadan lawns, Nepeta sibirica and Lathyrus komarovii, which remain in the planting sites for a long time, and Gentiana macrophylla, as well. By the method of introduction, 12 species are xenophytes; 3 - ergasiophygophytes; by the degree of naturalization, 4 species are ephemerophytes; 10 - colonophytes; and one is an epecophyte.