Abstract The essential oils of the inflorescences and leaves of Tanacetum vulgare L. var. vulgare collected at full flowering in 10 habitats in Vilnius district were investigated. Forty-one constituents were identified. The oils were distributed among four chemotypes. The major constituents of the camphor chemotype (10 samples) were camphor (22.3â41.4%) and 1,8-cineole (10.6â26.4%); the Î±-thujone chemotype (six samples) was found to be dominated by Î±-thujone (25.7â71.5%) and 1,8-cineole (11.3â22.3%); the major constituents of the 1,8-cineole-chemotype (three samples) was dominated by 1,8-cineole (24.5â32.7%) and camphor (8.3â23.8%); the artemisia ketone chemotype (one sample of inflorescences) predominantly featured artemisia ketone (30.5%) and camphor (23.0%). The oil from inflorescences of the above chemotypes contained higher amounts of the first major component and oxygenated monoterpenes (mean 83.6%) than the leaf oils (mean 73.7%). An opposite correlation was noticed for mono- and sesquiterpenes hydrocarbons and oxygenated sesquiterpenes. The oils of the inflorescences and leaves were of the same chemotype in eight habitats, but they contained different amounts of the main components.