The paper describes investigation on bioaccumulation of mineral elementsand identification of plants based on the concentrations of the elements inthe plant leaves. Five native plant species (Elytrigia repens, Plantago major,Urtica dioica, Chelidonium majus, and Taraxacum officinale) were studied. Toexclude the effects from different growth conditions and developmentalstages, the plants were collected simultaneously from the same site (park inSt. Petersburg, Russia). It was found that for all plants high concentrations ofpotassium, sodium, phosphorus and magnesium (K, Na, P, and Mg) weretypical, while concentrations of zinc (Zn) and copper (Cu) were the lowest.The most significant difference was found between concentrations ofelements in monocots and eudicots. Among other species,T. officinalehadthe highest concentrations of almost all elements. Excellent separation of theplants into different groups which was due to different elementconcentrations in the plant leaves was demonstrated.