Bioecological features and corrective properties of Achillea filipendulina Lam., Calendula officinalis L. and Hypericum perforatum L.

The study is devoted to investigations on bioecological features and corrective properties of two species from the family Asteraceae Dumort. (Achillea filipendulina Lam. and Calendula officinalis L.) and one species from the family Hypericaceae Juss. (Hypericum perforatum L.) which are growing in the flora of Azerbaijan. It has revealed that the extract obtained from the collection of these plants shows corrective influence