Source
It is the inflorescence, stem and leaf of Salvia Sclare L. of Lamiaceae. Claret basil (Salvia SclareL.), also known as southern European salvia, rosette sage.
It grows in the shallow mountainous area of northern Shaanxi. Due to the large temperature difference between day and night in this area, the temperature, humidity and altitude are suitable for the growth of herbal medicine.
Therefore, the products produced are famous for their high ester content and pure aroma.