牛泷草，中药名。为柳叶菜科植物露珠草CircaeacordataRoyle[C.cordiophyllaMakino]的全草。分布于东北、华北、华东、西南及陕西等地。具有清热解毒，止血生肌之功效。常用于疮痈肿毒，疥疮，外伤出血。
Niu-long-cao, name of Chinese Medicinal Material. 牛泷草). It is the whole plant of Circaea cordata Royle [C. cordiophylla Makino], a plant of the family Onagraceae. It is distributed in Northeast China, North China, East China, Southwest China, and Shaanxi. It has the functions of clearing heat, detoxifying, stopping bleeding, and promoting tissue regeneration. It is often used for carbuncles, swelling and toxicity, scabies, and external bleeding.

功效作用 功能
Efficacy and Functions

清热解毒，止血生肌。主治
Clearing heat, detoxifying, stopping bleeding, and promoting tissue regeneration. Mainly used for治疗。

用于疮痈肿毒，疥疮，外伤出血。用法用量
Indications: Used for treating ulcers, abscesses, swelling, and toxins, scabies, and external bleeding from injuries. Dosage and Administration:

内服：煎汤，6-12g。外用：适量，捣敷或研末调敷。相关论述
Internal use: Decoction, 6-12g. External use: Appropriate amount, pounded for application or ground into powder for application. Relevant discussion.

1、《贵州草药》：“辛，凉。有小毒。”2、《全国中草药汇编》：“苦，寒。”3、《贵州草药》：“清热解毒，生肌。治疥疮，脓包，刀伤。”4、《浙江药用植物志》：“治疮疡肿毒，外伤出血。”临床应用 相关配伍

1. "Guizhou Medicinal Herbs": "Pungent, cool. Slightly toxic."2. "National Compilation of Chinese Medicinal Herbs": "Bitter, cold."3. "Guizhou Medicinal Herbs": "Clears heat, detoxifies, promotes tissue regeneration. Used for scabies, abscesses, and cuts."4. "Zhejiang Medicinal Plants": "Treats ulcers, swelling, toxins, external bleeding." Clinical applications and related compatibility.

1、治疥疮，脓疱：夜抹光烘干研末，配硫黄、雄黄粉适量，用菜油调擦或干扑于溃烂处。2、治刀伤：夜抹光捣绒敷伤处。（1-2方出自《贵州草药》）现代研究

1. Treatment for scabies and pustules: Grind and dry the herbs at night, mix with an appropriate amount of sulfur and realgar powder, and apply the mixture with vegetable oil or pat it dry on the ulcerated area.2. Treatment for knife wounds: Grind and dry the herbs at night, apply the mixture to the wound with a soft cloth. (The above remedies are from "Guizhou Herbal Medicine") - Modern research

现代临床用于治疗疮痈肿毒，疥疮和外伤出血等。加工炮制 采收加工
Modern clinical applications include treating ulcers, abscesses, swelling, toxicity, scabies, and external bleeding caused by trauma. Processing methods involve collection and preparation.

秋季采收全草，鲜用或晒干。植物学信息 植物种属
Harvest the whole plant in autumn, and use it fresh or dry it in the sun. Botanical information: Plant species.

柳叶菜科植物露珠草。形态特征
Ludewigia is a plant in the family Onagraceae. Its morphological characteristics.

露珠草，又名心叶露珠草。多年生草本，高40-70cm。具地下匍匐枝；茎圆柱形，绿色，全株被毛，茎被长展毛和稍弯的尖柔毛。叶对生；叶柄长4-8cm，密被短柔毛；叶片卵形或阔卵形，长3-6cm，宽2-4cm，先端短渐尖，基部浅心形，边缘疏生浅锯齿或近全缘，两面疏生短柔毛。总状花序顶生或腋生，花序轴密被短柔毛；苞片小；花两性，白色，花梗长3-4mm，密被短柔毛；萼筒倒卵形，裂片2，长卵形，被微柔毛，花瓣2，阔倒卵形，顶端2裂，白色，长约2mm；雄蕊2；子房下位，2室，花柱伸出，长3-4mm，柱头头状，顶端凹状。果实坚果状，倒卵状球形，长2.5-3mm，直径约2.5mm，有沟，外被浅棕色钩状毛；果柄被毛，稍短于果产或近等长。花期7-9月，果期9-10月。分布区域
Drooping Dew Grass, also known as Heart-leaved Drooping Dew Grass, is a perennial herbaceous plant that grows to a height of 40-70cm. It has creeping underground branches; its stem is cylindrical, green, and covered with hairs, with long spreading hairs and slightly curved soft hairs on the stem. The leaves are opposite; leaf stalks are 4-8cm long, densely covered with short soft hairs; leaf blades are ovate or broadly ovate, 3-6cm long, 2-4cm wide, with a short acuminate apex, shallow cordate base, sparsely serrate or nearly entire margin, and short soft hairs on both sides. The inflorescence is terminal or axillary, with the inflorescence axis densely covered with short soft hairs; bracts are small; flowers are bisexual, white, with flower stalks 3-4mm long, densely covered with short soft hairs; calyx tube is inverted ovate, with 2 lobes, oblong, covered with tiny soft hairs; petals are 2, broadly ovate, 2-lobed at the apex, white, about 2mm long; stamens are 2; ovary is inferior, 2-celled, with a protruding style, 3-4mm long, with a head-shaped stigma, concave at the tip. The fruit is nut-like, inverted ovate-globose, 2.5-3mm long, about 2.5mm in diameter, grooved, with light brown hooked hairs on the outside; fruit stalk is hairy, slightly shorter than or nearly equal in length to the fruit. It flowers from July to September and fruits from September to October. Distribution area: [missing information].

分布于东北、华北、华东、西南及陕西等地。生长环境
Distributed in Northeast China, North China, East China, Southwest China, Shaanxi, and other regions. Growing environment.

生于海拔1650-3200m的山坡路边、林下阴湿处。
Born on the slopes of mountains at an altitude of 1650-3200 meters, in damp and shady areas under the trees.