Single-root synonyms - names of plants in "Dictionary of the Russian dialects of Кarelia and adjacent areas"

The article considers ranks of single-root synonyms, established according to "The dictionary of the Russian dialects of Karelia and adjacent areas", in word-formation aspect. For consideration names of plants are chosen: herbs, flowers, trees. At the level of dialect language, as well as in private dialect systems, synonymic ranks are mainly presented by couples of synonyms - word-formation couples and coderivates. Synonymic ranks with a large number of members (from 3 to 7) reflect difficult derivational communications: syntagmatic and paradigmatic. The revealed synonymic ranks developed as a result of an active suffixation. In case of identity of lexemes in synonymic ranks the process of loss of meaning in suffixes, especially suffixes of value judgment, is distinctly noticeable.