The results of the investigation of five cоenopopulations of Filipendula ulmaria (L.) Maxim. in the south of West Siberia and mountain Altai are presented. Ontogenesis of the soboliferous short-rhizome life form was studied. The main structural individual unit of an adult individual is a dicyclic mesorosular monocarpic shoot, there are shoots with incomplete development cycle (latent generative shoots). Two types of populations ontogenetic spectra were revealed: unimodal spectrum in strongly sward coenosises and left-hand spectrum at moderate grazing pressure. The most powerfull plants grow in the floodplain coenosises.Key words: life form, rhizome, mesorosular monocarpic shoot, meadowsweet, coenopopulation ontogenetic spectrum, south of West Siberia.