Why is Banlangen called Banlangen? Because there is a plant called Radix Isatidis, whose roots are medicinal materials?
Isatis indigotica (commonly alias: Indigo root, Indigo root and Isatis indigotica root) is a Chinese herbal medicine. It is produced all over China. Isatis indigotica is divided into Isatis indigotica and Isatis indigotica, and Isatis indigotica is the source of Isatis indigotica. Tincture? L.) and Cao Daqing (I? Indigo? The root of the fortress. ); South Banlangen (South Banlangen? Kuusia? (Nees)？ Rhizomes and roots of bream. Has the effects of clearing away heat and toxic materials, cooling blood, relieving swelling and relieving sore throat.