草牡丹，中药名。为毛茛科铁线莲属植物大叶铁线莲Clematis heracleifolia DC.的全株。具有清热解毒，祛风除湿的功效。主治肠炎，痢疾，风湿关节肿痛；外用治疮疖肿毒，结核性溃疡、瘘管。
Cao-mu-dan, name of Chinese Medicinal Material. Clematis heracleifolia DC.) is the whole plant of Clematis heracleifolia DC., a plant of the Ranunculaceae family. It has the effects of clearing heat, detoxifying, dispelling wind, and removing dampness. It is mainly used to treat enteritis, dysentery, rheumatic joint pain; externally, it is used to treat abscesses, boils, ulcers, and fistulas caused by tuberculosis.

功效作用 功能
The efficacy and functions.

清热解毒，祛风除湿。主治
Clearing heat and detoxifying, dispelling wind and removing dampness. Used to treat...

肠炎，痢疾，风湿关节肿痛；外用治疮疖肿毒，结核性溃疡、瘘管。用法用量
Enteritis, dysentery, rheumatic joint pain; externally used for treating ulcers, abscesses, and tuberculosis ulcers, fistulas. Dosage and administration.

内服：煎汤9-15g；或泡酒。外用：煎汤熏洗。加工炮制 采收加工
Internal use: decoct 9-15g; or soak in alcohol. External use: decoct and fumigate for washing. Processing: collection and processing.

夏秋采，切段晒干。药材鉴别 药材性状
Summer and autumn harvest, cut into sections and sun-dry. Identification of medicinal materials and their properties.

根粗大，木质化；表面棕黄色。茎圆柱形，多切成段直径5-8mm，下段茎木化，上段茎草质，黄绿或绿褐色，具纵棱。叶对生，完整叶为三出复叶，先端小叶较大，宽卵形，长宽均6-13cm，先端短尖，基部楔形，不分裂或3浅裂，边缘有粗锯齿，具柄；侧生小叶近无柄，较小。聚伞花序顶生或腋生，花梗粗壮有白色糙毛，花淡蓝色。气微，味微苦。植物学信息 植物种属
The roots are thick and woody; the surface is brownish-yellow. The stem is cylindrical, often cut into segments with a diameter of 5-8mm. The lower part of the stem is woody, while the upper part is herbaceous, yellow-green or green-brown, and has longitudinal ridges. The leaves are opposite, with complete leaves being trifoliate. The terminal leaflet is larger, broadly ovate, 6-13cm in length and width, with a short pointed tip and a wedge-shaped base. It is either undivided or shallowly divided into three, with coarse serrations along the margin and a petiole. The lateral leaflets are nearly sessile and smaller. The umbel inflorescence is terminal or axillary, with stout flower stalks covered in white rough hairs, and the flowers are pale blue. The plant has a slight aroma and a slightly bitter taste. Botanical information about the plant species.

毛茛科铁线莲属植物大叶铁线莲。形态特征
The plant belongs to the Ranunculaceae family and is called the Large-Leaved Clematis. Here are its morphological characteristics.

基部木质。高0.3-1m。主根粗大，表面棕黄色。茎粗壮，纵条纹明显，密生白色糙绒毛。叶对生，三出复叶，长达30cm；叶柄长4.5-15cm，被毛；小叶片亚革质或厚纸质，宽卵形、卵圆形或近圆形，长6-13cm，宽4-10cm，先端短尖头，上面暗绿色，近无毛，下面有曲柔毛，脉上尤多；顶生小叶柄长，侧生小叶柄短。聚伞花序顶生或腋生，花梗粗壮，有白色糙绒毛，每花下有一个线状披针形苞片；花杂性，两性花与雄花异株；花直径2-3cm；萼片4，蓝紫色，窄长圆形或宽线形，长1.5-2cm，宽约5mm，先端常反卷，下半部靠合管状，外面有白色厚绢状短柔毛，内面无毛，边缘密生白色绒毛；花瓣无；春蕊多长柔毛；心皮多数，有的白色绢毛。瘦果卵形，长约4mm，红棕色，有短柔毛，宿存花柱羽毛状，长达3cm。花期8-9月，果期9-10月。分布区域
Woody at the base. 0.3-1m tall. The main root is thick, with a brown-yellow surface. The stem is stout, with prominent longitudinal stripes and densely covered with white rough hairs. Leaves are opposite, trifoliate, up to 30cm long; petiole 4.5-15cm long, hairy; leaflets subleathery or thick papery, broadly ovate, ovate, or nearly circular, 6-13cm long, 4-10cm wide, with a short pointed tip, dark green on the upper surface, nearly hairless, with soft hairs on the lower surface, especially along the veins; terminal leaflet with a long petiolule, lateral leaflets with short petiolules. Umbel inflorescences are terminal or axillary, with stout flower stalks covered with white rough hairs, each flower with a linear lanceolate bract below; flowers are polygamous, with staminate and pistillate flowers on separate plants; flower diameter 2-3cm; sepals 4, blue-purple, narrowly elliptic or broadly linear, 1.5-2cm long, about 5mm wide, often curled at the tip, the lower half connate into a tubular shape, with white thick silky short hairs on the outside and no hairs on the inside, densely covered with white woolly hairs along the margin; no petals; stamens with long soft hairs; carpels numerous, some with white silky hairs. Fruit is ovoid, about 4mm long, reddish-brown, with short soft hairs, persistent styles feather-like, up to 3cm long. Flowering period is from August to September, and fruiting period is from September to October. Distribution area is [unknown].

分布于吉林、辽宁、河北、山西、陕西、山东、安徽、江苏、浙江、河南、湖北、湖南。生长环境
Distributed in Jilin, Liaoning, Hebei, Shanxi, Shaanxi, Shandong, Anhui, Jiangsu, Zhejiang, Henan, Hubei, and Hunan. Growing environment.

生于山坡沟谷、路旁或林边。
Born on the slopes of hills and in valleys, by the roadside, or at the edge of forests.