Looking south of the Yangtze River

Looking south of the Yangtze River

(save famine materia medica)

[synonym] Golden Leopard (herb mirror), golden bean (compendium of Chinese materia medica), Crotalaria, lentil (Chinese tree taxonomy), mungbean, Fenghuang flower, Licha (Chinese medicinal plant record), houbaicao (Jiangsu medicinal plant record), dayangjiaocai (Nanning medicinal record), dizzy vegetable (Guangxi Medicinal record), pig bone cotton, dagengyao, dog dung bean, dayeming Night closed, Cassia obtusifolia (the main poisonous plant in the South), mountain coffee (Fujian Chinese herbal medicine).

[source] stems and leaves of the leguminous plant wangjiangnan.

Plant morphology in the south of the Yangtze River

Annual shrubs or semi shrubby herbs, 1-2m high. Stem erect, cylindrical, lower part lignified, upper part branched. It has double pinnate compound leaves, alternate; petiole 3-5 cm long, with a gland near the base; stipules ovate lanceolate; leaflets 3-5 pairs, the lowest pair the smallest; leaflets ovate or ovate lanceolate, 2-6 cm long, 1-2 cm wide, apex pointed or acuminate, base nearly round, slightly oblique, fully covered, margin villous, petioles very short, densely covered with villous. Corymbose raceme axillary or terminal, pedicel sparsely pubescent; bracts ovate, caducous; calyx 5; petals 5, yellow, obovate or elliptic, apex rounded or slightly concave, base with short claws; stamens 10, upper 3 staminodes; ovary linear and flat, covered with white long hair, style filiform, inflected, stigma truncate. Pods flat, linear, septate, light brown, thinly hairy. Seeds ovate and slightly pointed at one end, flattened, subcentrally retuse. The flowering period is from August to September. The fruiting period is October.

It grows on the hillside or riverside of sandy soil and is widely cultivated. Distributed in Hebei, Shandong, Jiangsu, Anhui, Zhejiang, Fujian, Taiwan, Guangdong, Guangxi, Yunnan and other places.

The pods or seeds of this plant (wangjiangnanzi) are also used for medicine. Please refer to the special section for details.

[collection] the stems and leaves were harvested and dried in August.

[chemical constituents] the leaves contain two anthrone glucosides. The root contains 1,8-dihydroxyanthraquinone, α - hydroxyanthraquinone, emodin, quercetin and mixed diacetylene synthesized from emodin methyl ether and chrysophanol. The root contains chrysophanol and so on.

[pharmacological action] the volatile oil contained in leaves, roots and seeds has inhibitory effect on a variety of bacteria, and it has also been reported that it has no antibacterial effect. The water extract can inhibit some fungi. The water decoction of leaves and stems and the decoction precipitated by alcohol can excite the ileum of guinea pigs and the uterus of rats, and reduce the blood pressure of dogs. The former can slightly excite the isolated rabbit heart, while the latter can significantly reduce the perfusion flow of hind limbs of rats. African folk used to treat snake bite, use its root to treat edema, or as laxative and antipyretic.

Bitter, cold.

① "Save the famine Materia Medica": "taste slightly bitter. "

② "Bitter and astringent, cold. "

③ Guangzhou army's "manual of commonly used Chinese herbal medicine": "bitter, flat. "

Functions and indications: it can eliminate lung, clear liver, harmonize stomach, reduce swelling and detoxify. It is used to treat cough, asthma, abdominal distension, blood drenching, constipation, headache, red eyes, sore, swelling and poison, insect and snake bites.

① Chinese medicine Zhi: "it is used to treat cough, stomach disease, gas block and gas distension. "

② Fujian folk herbal medicine: "killing insects and detoxifying. It can cure poisonous insect stings, snakehead sores, blood drenching and stomach carbuncle. "

③ "Calming the liver fire and improving the eyesight" is the key point of Nanning medical records. It can treat eye pain caused by heat. "

④ "The main poisonous plants in South China": "treat chronic constipation, asthma. "

[usage and dosage] oral administration: decoction, 2-3 yuan; or mash juice. External use: tamping.

[selection] ① treatment of swelling and toxin: cotyledons of golden bean, sun drying, vinegar and application, leaving the head to disappear; or two or three coins in wine. (collection of compendium)

② Treatment of Snakehead: hold the fresh Croton leaves, mash them with white hemp seeds and apply them to the affected area.

③ Treatment of snakebite: hold the fresh Croton leaves, mash and wring the natural juice, and apply the residue to the affected area.

④ Treatment of blood drenching: Croton whole grass one or two, fried in water. (2) Fujian folk herbal medicine

[clinical application] 1

Mash the fresh leaves for external application and fry with 1-2 liang of whole grass or 0.5-1 liang of seeds. 2 cases of mastitis, 1 case of cellulitis, 1 case of folliculitis, 2 cases of nasal ulcer were cured.

② Treatment of intractable headache

Take 1 liang of wangjiangnan leaves and half a jin of lean pork. Add appropriate amount of salt, decoction, 1 dose daily. 18 cases of headache due to hyperactivity of liver Yang were treated, 15 cases were cured in the near future; 14 cases of headache due to kidney deficiency, 12 cases were cured in the near future; 10 cases of migraine, 9 cases were cured in the near future. The cured cases were followed up for more than half a year without recurrence.

Chinese PinYin : Wang Jiang Nan