Euchresta tubulosa Dunn
Aliases：Guǎn È Shān Dòu Gēn (recorded in Zhiwu Fenlei Xuebao — Acta Phytotaxonomica Sinica, literally "Tubular‑Calyx Mountain‑Bean Root"), Hú Dòu Lián (literally "Bean Vine"), Hú Dòu Qī (literally "Bean Seven"), Shān Dòu Gēn (literally "Mountain‑Bean Root" — also the name of a distinct but related medicinal herb Sophora tonkinensis), Dòu Gēn (literally "Bean Root"), Huáng Jié (literally "Yellow Knot"), Yā Piàn Qī (literally "Opium Seven"), and Duǎn Guǎn Shān Dòu Gēn (literally "Short‑Tubed Mountain‑Bean Root"). (These are all alternative names for È Dòu Gēn, i.e., the root of Euchresta tubulosa.)
È Dòu Gēn is a traditional Chinese medicinal material. It is the dried root of Euchresta tubulosa Dunn, a plant belonging to the genus Euchresta of the family Leguminosae. It grows in dense mountain forests or beside ditches. It was first recorded in Quanguo Zhongcaoyao Huibian (Compilation of National Chinese Herbal Medicines).
Efficacy & Actions
Clears heat, removes toxicity, promotes qi circulation, and relieves pain.
Indications
Sore throat. Abdominal pain and distension. Stomach pain and liver area pain. Enteritis and diarrhea. Dysentery and heat diarrhea. Upper respiratory tract infections.
Modern Pharmacology
Traditional applications suggest that it has the effects of clearing heat, removing toxicity, relieving sore throat, and alleviating pain.
Ingredients
Its bitter and cold nature is similar to that of Shan Dou Gen (Sophora tonkinensis), suggesting that it may contain similar alkaloid components.
Usage & Dosage
For oral administration: decoct in water, 5–10 g; or grind into powder, 1.5 g each time. For topical application: appropriate amount, mashed for application.
Contraindications
Use with caution in patients with Spleen‑Stomach deficiency‑cold: As this herb is cold in nature, it should not be used in large amounts by those with Spleen‑Stomach deficiency‑cold.
Selected Formulas
For sore throat (Hubei Chinese Herbal Medicine Records) Take Hudoulian (a local herb), grind into powder. Take 1.5g each time with boiled water. For pain in the liver area (Hubei Chinese Herbal Medicine Records) Take 1.5g of Hudoulian and 3g of Xiangxueteng (a local herb), grind together into powder, and take with boiled water.
Medicinal Parts
It is the dried root of Euchresta tubulosa Dunn, a plant belonging to the family Leguminosae. It is also recorded that the whole plant is used medicinally.
Selection & Storage
Store in a cool, dry place, protected from moisture and insects.
