胡枝子，中药名。为豆科胡枝子属植物胡枝子Lespedeza bicolor Turcz的枝叶。具有清热润肺，利尿通淋，止血的功效。主治肺热咳嗽，感冒发热，百日咳，淋证，吐血，衄血，尿血，便血。
Hu-zhi-zi, name of Chinese Medicinal Material. It refers to the stems and leaves of Lespedeza bicolor Turcz, a plant of the genus Lespedeza in the legume family. It has the effects of clearing heat and moistening the lungs, promoting diuresis, stopping bleeding. It is mainly used for treating lung-heat cough, fever due to cold, whooping cough, urinary tract infection, vomiting blood, hemorrhage, hematuria, and bloody stools.

功效作用 功能
Efficacy, function.

清热润肺，利尿通淋，止血。主治
Clearing heat and moistening the lungs, promoting diuresis to relieve stranguria, and stopping bleeding. Used to treat...

肺热咳嗽，感冒发热，百日咳，淋证，吐血，衄血，尿血，便血。用法用量
Lung heat cough, fever from a cold, whooping cough, gonorrhea, vomiting blood, nosebleed, blood in urine, and bloody stools. Dosage and administration.

内服：煎汤，9-15g，鲜品30-60g；或泡作茶饮。化学成分
Internal administration: Decoction, 9-15g dried, 30-60g fresh; or infusion for tea. Chemical composition.

枝叶含黄酮类化合物：槲皮素，山柰酚，三叶豆苷，异槲皮素，荭草素，异荭草素。还含必需氨基酸，鞣质。药理作用
Flavonoids such as quercetin, kaempferol, astragalin, isoquercetin, hyperoside, and isoquercitrin are contained in the branches and leaves. It also contains essential amino acids and tannins. These substances have pharmacological effects.

1、抗炎镇痛作用：胡枝子叶总黄酮1g/kg腹腔注射对角叉菜胶、琼脂、右旋糖酐及甲醛性大鼠足肿均有显著抑制作用，并能显著抑制组胺所致大鼠皮肤毛细血管通透性增加，对于切除肾上腺大鼠的角叉菜胶性足肿仍具有显著的抗炎效果。从本品茎枝中提得的总黄酮对小鼠还有镇痛活性，此黄酮可能属槲皮素类成分。胡枝子地上部分总黄酮腹膜内注射，热板法研究其止痛作用，50mg/kg剂量组痛阈值明显提高，100mg/kg剂量组出现最大止痛效应，最大止痛效果是在注射各剂量后的30min，作图法计算胡枝子止痛作用ED50为47.5mg/kg。2、抗过敏作用：胡枝子叶总黄酮可显著对抗大鼠皮肤被动过敏反应。3、对肾功能的影响：本品所含黄酮灌服1-2g/kg，可使甘油所致急性肾功能不全大鼠尿素及尿量排泄增多4对肾功能的作用胡枝子叶中的总黄酮，以每日100-200mg/100g的剂量口服给药，对丙三醇引起的大鼠急性肾功能不全有明显的治疗作用，尿量增加的同时，血中的残余氮降低。其酊剂亦有利尿作用，并减少血中尿素含量，而使尿中的肌酸酐和尿素的排出量增加。相关论述

1. Anti-inflammatory and analgesic effects: Intraperitoneal injection of 1g/kg total flavonoids from the leaves of Vitex negundo Linn. significantly inhibited foot swelling induced by carrageenan, agar, dextran, and formaldehyde in rats, and also significantly suppressed the increase in skin capillary permeability induced by histamine in rats. It still exhibited significant anti-inflammatory effects on carrageenan-induced foot swelling in adrenalectomized rats. Total flavonoids extracted from the stems and branches of this plant also showed analgesic activity in mice, possibly belonging to the component of quercetin. Intraperitoneal injection of total flavonoids from the aerial parts of Vitex negundo Linn. demonstrated analgesic effects in the hot plate test in rats. The group receiving a dose of 50mg/kg showed a significant increase in pain threshold, while the group receiving a dose of 100mg/kg exhibited the maximum analgesic effect. The maximum analgesic effect occurred 30 minutes after injection of each dose. The ED50 of the analgesic effect of Vitex negundo Linn. calculated by the method of plotting was 47.5mg/kg.2. Anti-allergic effect: Total flavonoids from the leaves of Vitex negundo Linn. significantly counteracted passive cutaneous anaphylaxis in rats.3. Effects on renal function: Oral administration of 1-2g/kg of flavonoids contained in this plant increased urea and urine excretion in rats with glycerol-induced acute renal failure. The total flavonoids in the leaves of Vitex negundo Linn., administered orally at a dose of 100-200mg/100g daily, showed a significant therapeutic effect on acute renal failure induced by glycerol in rats, with an increase in urine volume and a decrease in residual nitrogen in the blood. Its tincture also had a diuretic effect, reduced blood urea content, and increased the excretion of creatinine and urea in the urine.

《内蒙古中草药》：“润肺解热，利尿止血。主治感冒发热，咳嗽，眩晕头痛，小便不利，便血，尿血，吐血。”临床应用 相关配伍
"Inner Mongolian Herbal Medicine": "Moistens the lungs, clears heat, promotes urination, and stops bleeding. It is used to treat colds with fever, cough, dizziness, headache, difficult urination, blood in the stool, blood in the urine, and vomiting blood." Clinical applications and related compatibility.

1、治肺热咳嗽，百日咳：胡枝子鲜全草30-60g，冰糖15g。酌冲开水炖1h服，每日服3次。2、治小便淋漓：胡枝子鲜全草30-60g，车前草15-24g，冰糖30g。酌加水煎，每月服2次。（1、2方出自《福建民间草药》）加工炮制 采收加工

1. For treating lung heat cough and whooping cough: Fresh whole herb of Huzi (胡枝子) 30-60g, rock sugar 15g. Infuse with boiling water and stew for 1 hour, take orally 3 times a day. 2. For treating frequent urination: Fresh whole herb of Huzi (胡枝子) 30-60g, herb of Cheqiancao (车前草) 15-24g, rock sugar 30g. Decoct with added water, take twice a month. (The above two prescriptions are from "Fujian Folk Herbal Medicine"). Processing and preparation: Harvest and process.

6-9月采收，鲜用或切段晒干。植物学信息 植物种属
Harvest from June to September, use fresh or cut into sections and sun-dry. Botanical information: Plant species.

豆科胡枝子属植物胡枝子。形态特征
The plant Hu Zhizi belongs to the Fabaceae family. It has distinctive morphological characteristics.

直立灌木，高达2m。茎多分枝，被疏柔毛。叶互生，三出复叶；托叶条形，长3-4mm；顶生小叶较大，宽椭圆形，长圆形或卵形，长1.5-5cm，宽1-2cm，先端圆钝，微凹或有极小短尖，基部宽楔形或圆形，上面绿色，近无毛，下面淡绿色，疏生平伏柔毛，侧生小叶较小，具短柄。总状花序腋生，较叶长；小苞片长圆形或卵状披针形，有毛；花萼杯状，长4-5mm，紫褐色，被柔毛，萼齿4裂；花冠蝶形，紫红色，旗瓣倒卵形，基部有爪，翼瓣长圆形，有爪和短耳，龙骨瓣基部有爪；雄蕊10，二体；子房线形，有毛。荚果1节，扁平，倒卵形，有密柔毛。种子1颗。花期7-8月，果期9-10月。分布区域
Upright shrub, up to 2m tall. The stem branches a lot and is sparsely covered with soft hairs. The leaves are alternate, trifoliate; stipules linear, 3-4mm long; terminal leaflets larger, broadly elliptic, oblong, or ovate, 1.5-5cm long, 1-2cm wide, rounded or slightly notched at the apex, with a small or very short tip, broadly cuneate or rounded at the base, green on the upper surface, nearly glabrous, pale green on the lower surface, sparsely covered with appressed soft hairs, lateral leaflets smaller, with short petioles. Racemes axillary, longer than the leaves; bracts linear or ovate-lanceolate, hairy; calyx cup-shaped, 4-5mm long, purple-brown, covered with soft hairs, calyx lobes 4-cleft; corolla papilionaceous, purple-red, standard petal inverted ovate, clawed at the base, wings oblong, clawed with short auricles, keel petal clawed at the base; stamens 10, diadelphous; ovary linear, hairy. Pod 1-seeded, flattened, inverted ovate, densely hairy. 1 seed. Flowering period from July to August, fruiting period from September to October. Distribution area.

分布于华北、东北及浙江、江西、福建、河南、湖北、四川、陕西等地。生长环境
Distributed in North China, Northeast China, Zhejiang, Jiangxi, Fujian, Henan, Hubei, Sichuan, Shaanxi, and other regions. Growing environment.

生于山地灌木林下。
Born under the shrubs in the mountain forest.