The willow is a plant of Onagraceae family, which includes over 160 different species. The willow is a plant that is found throughout the world - according to experts it is coming from North Africa and East Asia. The flowers and the leaves have the therapeutic properties. Its positive effect on the treatment of prostate highlighted by the famous Austrian herbalist Maria Trempen on the 20th century. And then, it became known in Austria, Germany and America. In modern herbal medicine, the willow is considered to have antibacterial , anti-inflammatory and antioxidant properties.