望江南，中药名。为豆科植物望江南CassiaoccidentalisL.的茎叶。具有肃肺，清肝，利尿，通便，解毒消肿的功效。主治咳嗽气喘，头痛目赤，小便血淋，大便秘结，痈肿疮毒，蛇虫咬伤。
"Wang-jiang-na, name of Chinese Medicinal Material. refers to the stems and leaves of Cassia occidentalis L., a leguminous plant. It has the functions of clearing the lungs, purging the liver, diuresis, promoting bowel movements, and detoxification. It is mainly used to treat cough and asthma, headache and red eyes, hematuria, constipation, abscesses, ulcers, and snake or insect bites.

功效作用 功能
Efficacy and Functions

肃肺，清肝，利尿，通便，解毒消肿。主治
Nourish the lungs, clear the liver, promote diuresis, relieve constipation, detoxify, and reduce swelling. Mainly used for...

咳嗽气喘，头痛目赤，小便血淋，大便秘结，痈肿疮毒，蛇虫咬伤。用法用量
Coughing and wheezing, headache and red eyes, blood in the urine, constipation, abscesses, ulcers, and snake or insect bites. Dosage and administration.

内服：煎汤，6-9g，鲜品15-30g；或捣汁。外用：适量，鲜叶捣敷。注意事项
Internal use: Decoction, 6-9g dried or 15-30g fresh; or pounded juice. External use: Apply an appropriate amount of fresh leaves as a poultice. Precautions.

体虚患者慎服。化学成分
Patients with deficient constitution should be cautious when taking it. Chemical composition.

1、根含金钟柏醇-Ⅰ，金钟柏醇-Ⅱ，大黄酚，大黄素，青霉抗菌素，大黄素-8-甲醚，计米大黄蒽酮，甲基计米决明蒽酮，东非山扁豆醇。2、叶含大黄酚及一种双蒽醒。相关论述

1. The root contains a variety of compounds including Aloe-emodin-Ⅰ, Aloe-emodin-Ⅱ, Rhein, Emodin, Gentianine, Emodin-8-O-methyl ether, Chrysophanol, Methylchrysophanol, and Cassiaflavanone. 2. The leaves contain Rhein and a type of dianthrone. Further discussion on this topic is needed.

1、《纲目拾遗》：“治肿毒。”2、《中国药用植物志》：“治咳嗽，肾病，气块，气胀。”3、《南方主要有毒植物》：“治慢性便秘，哮喘。”临床应用 相关配伍

1. "Treat swelling and toxicity." 2. "Treat cough, kidney disease, qi stagnation, and bloating." 3. "Treat chronic constipation and asthma." Clinical applications and relevant compatibility.

1、治肿毒：金豆子叶，晒研，醋和敷，留头即消；或酒下二三钱。（《纲目拾遗》）2、治蛇头疔：鲜羊角豆叶一握。和白麻子捣烂敷贴患处。3、治蛇伤：鲜羊角豆叶一握。捣烂绞自然汁服，渣敷患处。4、治血淋：羊角豆全草30g。水煎服。（2-4方出自《福建民间草药》）加工炮制 采收加工

1. Treating swelling and toxicity: Take the leaves of golden beans, dry and grind them, mix with vinegar and apply to the affected area, the swelling will disappear quickly; or take two to three qian of alcohol orally. (From "Compendium of Materia Medica Addendum")2. Treating carbuncle on the head caused by snake bite: Take a handful of fresh goat's horn bean leaves, mash them with white sesame seeds, and apply the paste to the affected area.3. Treating snake bites: Take a handful of fresh goat's horn bean leaves, mash them and squeeze out the juice to drink, then apply the residue to the affected area.4. Treating hematuria: Take 30g of the whole herb of goat's horn bean, decoct in water and take orally. (The 2nd to 4th remedies are from "Fujian Folk Herbal Medicine") Processing and preparation: Harvest and process.

夏季植株生长旺盛时采收，阴干。鲜用者可随采新鲜茎叶供药用。植物学信息 植物种属
The plants should be harvested during the vigorous growth in summer and dried in the shade. Fresh stems and leaves can be used for medicinal purposes immediately after harvesting. Botanical information about the plant species.

豆科决明属望江南。形态特征
The Senna genus of the Leguminosae family is commonly found in the southern regions near rivers. Here are its morphological characteristics.

灌木或半灌木，高1-2m。分枝少，无毛。叶互生，偶数羽状复叶，长约20cm；叶柄离基部约2mm处有1枚大而褐色、圆锥形的腺体；小叶具短柄，膜质，4-5对，叶片卵形至椭圆状披针形，长4-9cm，宽2-3.5cm，先端渐尖，有缘毛，基部近于圆形，稍偏斜，全缘，上面密被细柔毛，下面无毛。伞房状总状花序顶生或腋生，长约5cm；苞片线状披针形或长卵形，早落；萼片不相等；5片，分离；花黄色，直径1.5-2cm，花瓣5，倒卵形，先端圆形，基部具短狭的爪；雄蕊10，发育雄蕊7，3枚不育，无花药；子房线形而扁，被白色长毛，花柱丝状，内弯，柱头截形。荚果扁平，线形，褐色，长10-13cm，宽8-9mm，稍内弯，边加厚。种子30-40颗，长1-1.5cm，卵形，稍扁，淡褐色，有光泽，种子间有薄的横隔膜。花期4-8月，果期6-10月。分布区域
Shrub or subshrub, 1-2m tall. Few branches, glabrous. Leaves alternate, odd-pinnate compound, about 20cm long; petiole with a large, brown, conical gland about 2mm away from the base; leaflets with short petioles, membranous, 4-5 pairs, ovate to elliptic-lanceolate, 4-9cm long, 2-3.5cm wide, gradually pointed at the apex, margin ciliate, base nearly round, slightly oblique, entire, densely covered with fine soft hairs on the upper surface, glabrous on the lower surface. Umbel-like corymbose raceme terminal or axillary, about 5cm long; bracts linear-lanceolate or long-ovate, early deciduous; sepals unequal, 5, separate; flowers yellow, 1.5-2cm in diameter, petals 5, obovate, rounded at the apex, with short narrow claws at the base; stamens 10, 7 fertile, 3 sterile, anthers absent; ovary linear and flattened, covered with long white hairs, style filiform, curved inward, stigma truncate. Pod flattened, linear, brown, 10-13cm long, 8-9mm wide, slightly curved inward, thickened at the edges. Seeds 30-40, 1-1.5cm long, ovate, slightly flattened, light brown, shiny, with thin transverse septa between seeds. Flowering period from April to August, fruiting period from June to October. Distribution area.

分布于长江以南各地。此外，河北、山东、河南、台湾也有。生长环境
Distributed in various regions south of the Yangtze River. In addition, it can also be found in Hebei, Shandong, Henan, and Taiwan. Habitat.

常生于河边滩地、旷野或丘陵的灌木林或疏林中。生长见习
It often grows in shrubbery or sparse forests near riverside beaches, open fields, or hills. It is commonly found in these environments.

原产于热带，喜温暖气候，不耐寒，植株适宜生长温度为15-30℃，若气温低于10℃，则停止生长，降至5℃，植株开始死亡。一般土壤均可种植，以排水良好的砂质壤土为好。繁殖方式
Originally from the tropics, this plant prefers a warm climate and is not cold-resistant. The suitable temperature for its growth is between 15-30°C. If the temperature drops below 10°C, the plant will stop growing, and if it drops to 5°C, the plant will begin to die. It can generally be planted in any type of soil, but sandy loam with good drainage is preferred. As for propagation methods, ...

用种子繁殖。栽培技术
Propagation by seeds. Cultivation techniques.

种子繁殖：播种期南方3月份，北方以4月中、下旬为宜。播种前可用温水浸种一昼夜，以利出苗。条播，行距50-60cm，开约5cm深的沟，每1h㎡播种量22.5-30kg。播种后覆土约2cm，稍加镇压。病虫防治
Seed propagation: In the southern regions, seeds should be sown in March, while in the northern regions, it is best to sow them in mid to late April. Before sowing, the seeds can be soaked in warm water for a day and night to facilitate germination. Sow in rows with a spacing of 50-60cm, opening a trench about 5cm deep, and sow 22.5-30kg per hectare. After sowing, cover the seeds with soil to a depth of about 2cm and lightly press down. Disease and pest control should be implemented.

1、根腐病，7-8月雨季发生，可选地势高，排水良好的地块种植；经常松土，增加土壤通气性；用50%多菌灵1000倍液喷洒。2、红蜘蛛，5-8月发生，可喷20%双甲脒乳油1000倍液防治。

1. Root rot disease occurs during the rainy season in July and August. It is advisable to plant in high-lying areas with good drainage. Regularly loosen the soil to improve soil aeration. Spray with a 1000-fold dilution of 50% carbendazim solution.2. Red spider mites occur from May to August. They can be controlled by spraying with a 1000-fold dilution of 20% dicofol emulsion.