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Rhizoma polygonati


Rhizome of Polygonatum sibicum Red., P. cyrtonema Hua or the other species of the same genus, family Liliaceae.


P. sibincum: Rhizome thick, fleshy, and tuberous, like a chicken’s head, usually several of them gathered together, 3-11 cm long. Surface dark-brown, nodes invisible, with little discoidal stem P. cyrtonema: Rhizome transverse, long, with short branching, ginger-like shape. Surface dark-brown, stem scars round and large. Prepared as irregular pieces. Both are sweet in taste, mild in nature, and attributive to kidney and spleen channels.


1. Nourish yin and moisturize the lung: For dry cough less sputum due to yin-deficiency with lung-dryness, and pulmonary tuberculosis with cough, hemoptysis and hectic fever.

2. Strengthen the middle-jiao and benefit vital energy: For yin and vital energy deficiency of spleen and stomach manifested as poor appetite, fatigue, dry and uncoated tongue; deficiency of lung and spleen with susceptibility to common cold, or susceptibility to skin infection due to general debility.

3. Supplement essence and enrich blood: For insufficiency of essence and blood with dizziness and weakness of the loins and knees. Recently, also used for coronary disease, used together with Radix Paeoniae Rubra; for leukopenia, used together with Fructus Ziziphi Jujubae; and adolescent myopia or drug-induced deafness. External use for skin tinea.

Phamacological Action

1. Promoting lymphocyte-blastogenesis.

2. Increasing coronary flow and myocardial contractility.

3. Lowering the level of blood lipids

4. Inhibiting the growth of Bacillus tuberculosis and various kinds of fungi in vitro.

Kidney Tea

Rhizoma polygonati is the main active ingredient in Natural Line’s Kidney Tea, which  is a special concoction designed for benefiting the urinary system and provides additional support to the kidney. This tea helps regulating level of water in the body.


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