1. Aliases
Shouwu, Yejiaotong, Tieweili, He Xianggong, Qiteng.
2. Plant morphology
Perennial herbaceous plant with enlarged tuberous roots. The stem is tangled, multi branched, slightly woody at the bottom, thin at the top, sometimes pale red, with longitudinal stripes, hollow, and hairless. Leaves ovate and heart-shaped, 4-9 cm long and 3-6 cm wide, apex gradually pointed, base heart-shaped or nearly heart-shaped, entire, rough on both sides, hairless. The stipe sheath is short and tubular, membranous, without cilia, often falling early. Flower pain conical, terminal or axillary, spreading, fruiting for up to 30 centimeters, bracts ovate, central green, margin transparent, hairless, bracts containing 2-4 white small flowers, perianth 5-lobed, uneven in size, fruiting with 3 enlarged and thickened outer rings, broad wings on the back, wings extending down to the nodes of the peduncle, stamens 8, shorter than the perianth, style 3, stigma head shaped, achenes 3-sided, black, glossy, enveloped in the persistent perianth. The flowering period is from June to September, and the fruiting period is from August to October.
3. Origin distribution
Born on slopes, crevices, and under forests. Distributed in Hebei, Henan, Shandong, and various provinces south of the Yangtze River.
4. Harvesting and processing
Harvest in autumn and winter, remove residual leaves, bundle them into bundles, and dry them.
5. Characteristics of medicinal herbs
Long cylindrical, slightly twisted, branched, of varying lengths. The surface is purple red to purple brown, rough, with twisted longitudinal wrinkles, slightly swollen nodes, with lateral branch marks, and a thin outer skin that can be peeled off. Crisp texture, easy to break, with purple red skin on the cross-section, yellow white or light brown wood, obvious ductal pores, loose pulp, and almost white color. Odorless, with a slightly bitter taste.
6. Nature, taste, and meridian tropism
Mild in nature and sweet in taste. Guixin Meridian and Liver Meridian.
7. Effect and function
Nourishing blood and calming the mind, dispelling wind and unblocking collaterals. A nourishing and tranquilizing medicine that belongs to the subcategory of sedatives.
8. Clinical applications
Dosage 9-15 grams, decoct and take; Apply an appropriate amount externally and wash the affected area with boiling water. Used to treat insomnia, excessive dreaming, blood deficiency and body pain, and rheumatic pain; External treatment for skin itching. 90 grams of Polygonum multiflorum and 90 grams of Yejiaotong are used to make a decoction with red dates. One dose is taken twice a day in the morning and evening, with a 15 day course of treatment. It has a certain therapeutic effect on schizophrenia. The decoction orally administered can significantly reduce the serum cholesterol content of hyperlipidemic rats and has a synergistic effect on pentobarbital sodium subthreshold sleep time, which can enhance mouse sleep. The emodin contained in it increases the muscle tone of the intestinal tract in vitro and in vivo at low doses, while at high doses it exhibits an inhibitory effect. In addition, it also has antibacterial, cough suppressive, and anti-cancer effects.
9. Pharmacological research
Has sedative, hypnotic, and lipid-lowering effects.
10. Chemical composition
Containing anthraquinone compounds, as well as β - sitosterol, glycoside compounds, tannins, emodin 8-glucoside, emodin, emodin methyl ether, luteolin-5-0 xyloside and other components.
11. Taboos for use
Those who are crazy and belong to the true fire should take it with caution.
12. Compatibility prescription
① Treatment for deficiency, restlessness, insomnia, and excessive dreaming: a. 30g of night vine, boiled in water. b. 30 grams of night vine, 30 grams of mother of pearl, and 9 grams of salvia miltiorrhiza. Boiled in water. (Zhejiang Medicinal Flora)
② Treatment for skin itching: Take an appropriate amount of Yejiateng and Canger Zi each, boil in water and wash externally. (Anhui Chinese Herbal Medicine)
③ Treatment of axillary gangrene: Take appropriate amounts of Polygonum multiflorum and Polygonum multiflorum leaves each. Crush. Apply to the affected area. (Common Folk Herbs in Guangxi)
④ Treatment of hemorrhoid swelling and pain: Take appropriate amounts of Polygonum multiflorum, false betel leaves, and cedar leaves each. Wash the affected area with boiling water. (Common Folk Herbs in Guangxi)
The content of the article is for clinical reference only. Non professionals in traditional Chinese medicine are not allowed to try medication.