In three-pot experiments, the uptake and translocation potential of cadmium (Cd) by Mentha aquatica L., Eryngium caucasicum Trautv. and Froriepia subpinnata Ledeb. was evaluated in different Cd concentrations including 0 (control), 5, 10, 15 and 20 mg Cd kg-1 dried soil. Plants accumulated Cd in their roots and shoots without toxicity symptoms. Enhancement of Cd concentration greatly decreased plant biomass. Bioconcentration factor (BCF) and translocation factor (TF) in F. subpinnata were higher than one that indicated higher efficiency of this plant for phytoextraction of Cd from soil. The efficiency of plants in uptake and translocation of Cd depends on species, biomass production, Cd concentration in biomass and soil. Cadmium concentration in M. aquatica root was higher than shoot. Mentha aquatica with higher BCF and lower TF than one can be suitable for phytostabilization of Cd. Also, uptake index and BCF for M. aquatica showed better phytoremediation potential in comparison with E. caucasicum and F. subpinnata.

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