Individual Herbs Notebook

Yu Zhu

Pharmaceutical: Rhizoma Polygonati Odorati
Taxonomy: Polygonatum odoratum

Other names: Fragrant Solomon's Seal Root / Wei Rui

Category: Herbs that Tonify Yin



Properties: Sweet, slightly cold

Meridans Entered:
Primary: Lung, Stomach and Heart


Traditional Actions/Indications:
  1. Nourishes Yin, moistens Dryness, moistens the Lungs, nourishes the Stomach and generates fluids
    Lung Yin Deficiency with cough, dry throat, irritability and thirst
    Lung and Stomach Dry Heat
    Stomach Yin Deficiency
    Steaming Bone Disorder (骨蒸 Gu Zheng)
    Wasting and thirsting with intense hunger and constipation
  2. Extinguishes Wind and softens and moistens the sinews
    Internal Wind generated by insufficient fluids with pain and spasms in the sinews
    Dizziness due to Yin Deficiency and Internal Stirring of Wind
    External Wind-Heat with Yin Deficient constitution
  3. Aids fasting
    Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, remove black patches from the face, render the complexion shiny, make the body light, and prevent forgetfulness. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Suggested Daily Dosage: 10-15g in decoction.


Appears in 6 formulae listed on this site: (click to display)
Research Links & References: (click to display)