Growth forms of apophytes and old naturalized neophytes of the Mezen’-Vychegda Plain
One of the indicators of originality of synanthropic floristic complexes is a spectrum of their growth forms, described in the work for a holistic physical-geographical region - Mezen’-Vychegda Plain. Here, according to the methodology in accordance with the Serebryakov system, authors described 32 biomorphs in 235 plants. Perennial, polycarpic, herbaceous plants dominate in the whole spectrum. Among the private growth forms, spring and biennial monocarpics, rod-root and stolon polycarpics biomorhs lead. Such ratios are well explained by the specificity of the soils of urbanized ecotops. At the same time, the spectrum of the biomorphs of the considered group is quite similar to the general biomorphological spectrum of seed plants in the northeast of the European part of Russia.