Isatis, Woad, Da Qing Ye, Ban Lan Gen Isatis, Woad Root: Isatis Radix: Ban Lan Gen, 板蓝根Leaf: Isatis Folium: Da Qing Ye, 大青叶 Isatis tinctoria(Atlas des plantes de France. 1891) Persicaria tinctoria(Photo by Udo Schröter) (Wikimedia) Botanical name: Isatis indigotica (syn. I. tinctoria)The Leaf (Da Qing Ye) may be obtained from: Isatis tinctoria (syn. I. indigotica) Geum aleppicum Persicaria tinctoria (syn. Polygonum tinctorium) Pteracanthus alatus See also Indigo, the extracted pigment from this and other plants Parts used: Root; Leaf Temperature & Taste: Cold, dry. Bitter Classification: B. Clear Heat and Toxin Uses: 1. Clears Heat and Toxin (Leaf; Root):-Epidemic and Infectious diseases (TCM, West)-acute Sore Throat, Tonsillitis, Diphtheria; also Heat-toxin affecting the Lungs (TCM, West)-acute bacterial and viral infections, especially of the Lungs and Throat; Pneumonia-Heat-Toxin Rashes; Mumps, Measles, Scarlet Fever-Meningitis, Encephalitis–Ban Lan Gen is widely available in Chinese pharmacies for acute infections and epidemic diseases, especially with acute sore Throat.2. Clears Liver Heat and Damp:-Damp-Heat Jaundice (Root)-Hepatitis; Cholecystitis (Leaf)3. Externally:-in Europe to stop Bleeding’-spreading and foul Ulcers, and Herpes (Dioscorides)-Ulcers, Malignant Tumors (India)-topically for inflammations Dose: Decoction of the leaf or root: 9–15 gramsPowder of the Leaf ior Root: 2–3 grams Comment: 1. The name ‘Ban Lan Gen‘…

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