After a huge research I believe that the pictures above depict Salvia sclarea (Lamiaceae family) or clary sage (σάλβια ή φασκόμηλο) so if anyone has any suggestions they are welcome (as the subject is vague). It is a perennial or biennial plant with square stems covered in hair. The flowers are placed in verticils with 2-6 flowers in each one and are placed on colourful bracts. Their colour can range from lilac to pink or white.
It has many medical uses. It can be used as a eyewash, to cure insomnia and menstrual related problems. In aromatherapy it is used to relieve anxiety and fear.