The structure of 11 coenopopulations (CP) of Conioselinum tataricum Hoffm (Apiaceae) in tall-herbaceosus phytocenosis of Salair ridge (south of West Siberia) was studied. The CP are generally of normal type. CP density is the highest in forest-tall-herbaceosus meadows. C. tataricum is the coenotical patient in plant communities. The biological and CP-stucture peculiarities show the low growth adaptation of C. tataricum in tall-herbaceosus phytocenosis of Salair.