Isatis, Woad

Root: Isatis Radix: Ban Lan Gen, 板蓝根
Leaf: Isatis Folium: Da Qing Ye, 大青叶
Picture Isatis tinctoria
(Atlas des plantes de France. 1891)

Picture Persicaria tinctoria
(Photo by Udo Schröter) (Wikimedia)

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Botanical name:


Isatis indigotica (syn. I. tinctoria)
The Leaf (Da Qing Ye) may be obtained from:
  1. Isatis tinctoria (syn. I. indigotica)
  2. Geum aleppicum
  3. Persicaria tinctoria (syn. Polygonum tinctorium)
  4. 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:


Powder of the Leaf or Root: 2–3 grams

Comment:


… available in PRO version
Picture

Main Combinations:


ROOT:
1. Acute Sore Throat, Tonsillitis, Diphtheria, Isatis Radix Da Qing Ye or Isatis Ban Lan Gen with … available in PRO version
2. Influenza Isatis Radix Ban Lan Gen with … available in PRO version
3. Fever, Isatis Folium Da Qing Ye or Isatis Radix Ban Lan Gen with … available in PRO version
4. Mumps:
i. Isatis Radix Ban Lan Gen with … available in PRO version
ii. Isatis Radix Ban Lan Gen with … available in PRO version
iii. to protect from Mumps, Isatis Radix Ban Lan Gen with … available in PRO version
5. Acute Heat diseases affecting the Head, Isatis Radix Ban Lan Gen with … available in PRO version
6. Damp-Heat Jaundice, Isatis Radix Ban Lan Gen with … available in PRO version
7. Cirrhosis of the Liver, Isatis Radix Ban Lan Gen with … available in PRO version
8. Conjunctivitis:
i. Isatis Radix Ban Lan Gen with … available in PRO version
ii. Isatis Radix Ban Lan Gen with … available in PRO version

LEAF:
1. Jaundice from Heat, Isatis Folium Da Qing Ye with … available in PRO version
2. Hepatitis:
i. Isatis Folium Da Qing Ye with … available in PRO version
ii. Isatis Folium Da Qing Ye with … available in PRO version
3. To prevent Meningitis and Encephalitis, decoct Isatis Folium Da Qing Ye … available in PRO version
4. Epidemic Eruptions, Isatis Folium Da Qing Ye with … available in PRO version
5. Measles, Isatis Folium Da Qing Ye with … available in PRO version
6. Epidemic High Fever, Isatis Folium Da Qing Ye with … available in PRO version

Cautions:


Generally Safe.
1. Not used in cold and weakness of the Stomach

Main Preparations used: