Reed root (Lugen)
Phragmites communis Trin. (Fam. Poaceae)
Pharmaceutical Name: Rhizoma Phragmitis Communis
Botanical Name: Phragmites
communis Trin. (Fam. Poaceae)
Common Name: Phragmites, Reed root, Reed rhizome.
Source of Earliest Record: Mingyi Bielu.
Part Used & Method for Pharmaceutical
Preparations: The rhizomes are dug at the end of spring, in the beginning
of summer or in autumn. After the fibrous roots have been removed, the skin is
peeled off and cleaned and dried in the sun.
Properties & Taste: Sweet and cold
Functions: 1. To clear heat and relieve
irritability; 2. To promote the production of body fluids and relieve thirst;
3. To stop vomiting.
Meridians: Lung and stomach.
Indications & Combinations:
1. Febrile diseases manifested as thirst,
irritability and fever. Reed root (Lugen) is used with Gypsum (Shigao),
Ophiopogon root (Maidong) and Trichosanthes root (Tianhuafen).
2. Heat in the stomach with vomiting and
belching. Reed root (Lugen) is used with the juice of Fresh ginger
(Shengjiang), Bamboo shavings (Zhuru) and Loquat leaf (Pipaye).
3. For dark, scanty urine or blood in the urine, it is used with
Rhizoma Imperatae (Bai Mao Gen) and Herba Plantaginis (Che Qian Cao).
4. Heat in the lungs manifested as cough,
expectoration of thick, yellow sputum and pulmonary abscess. Reed root
(Lugen) is used with Honeysuckle flower (Jinyinhua), Houttuynia (Yuxingcao) and
Benincasa seed (Dongguaren).
Dosage: 15-30 g dried; the fresh form of this herb has a stronger effect.
Cautions & Contraindications: This
herb should be used with caution in cases with cold and deficient spleen and
stomach.
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