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Imperata Rhizome
Imperata Rhizome
TMPW No.:440

Latin name Imperatae Rhizoma
Botanical source: Family name Graminae
Botanical source: Plant name Imperata cylindrica P.Beauvois (IPNI:30138371-2)
Part used Rhizome
Empirical criteria for quality selection Good one is thicker, longer and light-colored (yellowish-white in color). (TN)
Constituents Other aliphatic and related compounds:
Citric acid, Malic acid

D-Fructose, D-Glucose, D-Xylose


Simiarenol, Cylindrin, Arundoin, Fernenol, Isoarborinol

Potassium salt
Pharmacological effects Diuresis (water extract).
Indications As an antiinflammatory diuretic, antifebrile, blood cleanser and hemostatic, it is applied to treat heat disease, hematemesis, epistaxis, hematuria, edema, jaundice, oliguria, thirst, asthma and nausea.
Diseases Hematemesis, Nasal hemorrhage, Hematuria, Thirst, Vomitting, Nausea, Hiccup, Measles, High fever, Cough, Jaundice, Acute nephritis, Urodynia, Dysuria
Meridian tropism Lung, Stomach
Property Cold
Flavor Sweet
Classification in "Shen-non Ben-cao Jing" Middle
TCM: Classification Hemostatics
TCM: Medicinal effects To arrest bleeding by reducing heat in blood, to remove heat, and to cause diuresis.
For hematemesis, epistaxis, and hematuria due to heat in the blood, febrile disease with thirst, jaundice, urinary infection due to difficult painful urination, and edema in acute nephritis.
Remarks Listed in the Japanese Pharmacopoeia 18th ed.
References TN: T. Namba & Y. Tsuda ed., Outline of Pharmacognosy, a Textbook, 3rd ed., Nankodo Co., Ltd., Tokyo, 1998.


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Section of Pharmacognosy,
Division of Medicinal Resources,
Department of Research and Development,
Institute of Natural Medicine,
University of Toyama
2630 Sugitani, Toyama 930-0194 Japan
TEL: +81-76-434-7601
FAX: +81-76-434-5064