Crude drug sample data base

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Crude drug name

Market name茅根
Formal name茅根
Japanese nameぼうこん, Bōkon
Vernacular nameMaogen
Latin nameImperatae Rhizoma (JP), (CP)
English nameImperata Rhizome (JP), Lalang Grass Rhizome (CP)
Other names白茅根 (Baimaogen)
Original plant nameImperata cylindrica P. Beauvios var. major (Ness) C. E. Hubb.
Family nameGramineae
Used partClassificationPlant origin
Sub classification rhizome
TMPW No.438

Scientific information data base

Common name茅根, Maogen, Imperatae RhizomaJP,CP, Imperata RhizomeJP, Lalang Grass RhizomeCP
Synonyms白茅根 (Baimaogen)
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Original plant nameImperata cylindrica Beauvois1, Imperata cylindrica P. Beauvios var. koenigii Durand et Schinz, Imperata cylindrica var. major C.E. Hubb., (Chigaya1)
original plant image
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Family nameGramineae
Used partrhizome
Quality for selectionThick, long, and pale yellowish-white ones are regarded as being of good quality. (TN)
Official compendiumJP XIX, CP (2025 ed.)
Clinical applicationIt is used as an anti-inflammatory diuretic, antipyretic, blood-purifying, and hemostatic agent for febrile diseases, hematemesis, epistaxis, hematuria, edema, jaundice, dysuria, thirst, cough with dyspnea, and vomiting.
Medical systemTraditional Chinese medicine
Drug effect in
traditional medicine
Traditional
classification
Hemostatics
Beneficial effect[Property and Flavor] Cold; sweet.
[Meridian Tropism] Lung; stomach and bladder meridians.
[Actions] To cool the blood, stanch bleeding, clear heat, and promote urination.
[Indications] Hematemesis, epistaxis and hematuria caused by blood heat, vexation and thirst caused by heat disease, dampness-heat jaundice, edema, small quantity of urination, and heat strangury with slow pain.
Chemical constituentOther aliphatic and related compounds
(*C1):
Citric acid, Malic acid

Monosaccharides
(*C1):
D-Fructose, D-Glucose, D-Xylose

Oligosaccharides
(*C1):
Sucrose

Triterpenoids
(*C1):
Simiarenol, Cylindrin, Arundoin, Fernenol, Isoarborinol

Others
(*C1):
K塩/KCl

Chemical structure




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Pharmacological effectDiuresis (water extract).
DNA sequenceAF345653, AF092512, AF190764
Classical reference
(Chinese Herbal Classic "Zhenglei bencao")
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DiseaseHematemesis, Nasal hemorrhage, Hematuria, Thirst, Vomitting, Nausea, Hiccup, Measles, High fever, Cough, Jaundice, Acute nephritis, Urodynia, Dysuria
Formulationrarely used in formula
ReferencesJP: The 19th edition of the Japanese Pharmacopoeia.
CP: Pharmacopoeia of the People's Republic of China 2025 edi.
C1) The Encyclopedia of Wakan-Yaku with Color Pictures Vol. I, pp 98-99.
Last renewal date2026/07/14