三爪龙，中药名。为葡萄科植物三叶乌蔹莓Cayratiatrifolia(L.)Domin[VitistrifoliaL.；C.carnosa（Lam.）Gahnep.]的根。分布于陕西、湖北、四川、云南等省区。具有活血止痛，祛风除湿之功效。常用于跌打损伤，骨折，腰肌劳损，湿疹，皮肤溃疡。
San-zhao-long, name of Chinese Medicinal Material. the root of the Vitistrifolia (L.) Domin [Vitistrifolia L.; C.carnosa (Lam.) Gahnep.], a plant of the grape family. It is distributed in provinces such as Shaanxi, Hubei, Sichuan, and Yunnan. It is known for its functions of promoting blood circulation, relieving pain, dispelling wind, and removing dampness. It is commonly used for injuries from falls or blows, fractures, lumbar muscle strain, eczema, and skin ulcers.

功效作用 功能
The efficacy and functions.

活血止痛，祛风除湿。主治
Promoting blood circulation to relieve pain, dispelling wind and removing dampness. Mainly used for treating...

用于跌打损伤，骨折，腰肌劳损，湿疹，皮肤溃疡。用法用量
Used for bruises, fractures, lumbar muscle strain, eczema, and skin ulcers. Dosage and usage.

内服：煎汤，15-30g；或浸酒饮。外用：适量，捣烂或研末调敷。相关论述
Internal use: Decoction, 15-30g; or soak in alcohol for consumption. External use: Apply an appropriate amount, mash or grind into a paste for topical application. Relevant discussion.

《新华本草纲要》：“根：味辛、麻，性温。有消炎止痛，散瘀活血，祛风湿的功效。用于跌打损伤，骨折，风湿骨痛，腰肌劳损湿疹，皮肤溃疡等症。”词条图册更多图册临床应用 相关配伍
"Compendium of Materia Medica": "Root: It has a pungent and numbing taste, and a warm nature. It is effective in anti-inflammatory, pain-relieving, blood-activating, stasis-dispersing, and wind-damp dispelling. It is used for injuries from falls or blows, fractures, rheumatic bone pain, lumbar muscle strain, eczema, and skin ulcers." For more images and clinical applications of the entry, please refer to the image gallery and related combinations.

治湿疹、秃头疮：三爪龙、杨梅果树皮各适量，研粉，调麻油或香油涂敷。（《云南思茅中草药选》）加工炮制 采收加工
Treatment for eczema and alopecia areata: Take an appropriate amount of three-clawed dragon and bayberry tree bark, grind into powder, and mix with sesame oil or camellia oil for topical application. (From "Yunnan Simao Selected Chinese Herbal Medicine") Processing and preparation: Harvest and process.

全年均可挖取根部，洗净，切片，鲜用或晒干。植物学信息 植物种属
The roots can be harvested, cleaned, sliced, and used fresh or dried throughout the year. Botanical information: plant species.

葡萄科植物三叶乌蔹莓。形态特征
The plant of the Vitaceae family, Parthenocissus tricuspidata. Morphological characteristics

三叶乌蔹莓：木质藤本。小枝圆柱形，有纵棱纹，疏生短柔毛。卷须3-5分枝，相隔2节间断与叶对生。叶为3小叶，小叶卵圆形，长3-6厘米，宽1.5-4厘米，顶端急尖或钝，基部圆形，侧生小叶基部不对称，近圆形，边缘每侧有8-11个圆钝锯齿，上面绿色，伏生短柔毛，下面浅绿色，被疏柔毛；侧脉7-8对，网脉上面不明显突出；叶柄长2.5-6厘米，中央小叶柄长0.5-2.5厘米，侧生小叶柄长0.4-0.8厘米，被疏柔毛。花序腋生，复二歧聚伞花序；花序梗长2-7.5厘米，被疏柔毛；花梗长1-3毫米，被短柔毛；花蕾卵圆形，高1.3-1.8毫米，顶端圆形；萼浅碟形，边缘呈波状或全缘，外面疏生短柔毛；花瓣4，椭圆形，高1.3-1.8毫米，外面被灰色乳突状毛；雄蕊4，花药卵圆形，长略甚于宽；花盘发达，4浅裂；子房下部与花盘合生，花柱细，柱头微扩大。果实近球形，直径0.7-0.8厘米，有种子2-3颗；种子倒三角状，顶端圆形，种脐在种子背面近中部呈带形，上部种脊突出，表面肋纹钝，腹部中棱脊突出，两侧洼穴倒卵椭圆形，从种子基部向上达上部1/3，周围有钝肋纹突起。花果期6-12月。分布区域
Three-leaf wuweizi: woody vine. The small branches are cylindrical with longitudinal ridges and sparsely covered with short soft hairs. The tendrils are 3-5 branched, spaced 2 nodes apart and opposite to the leaves. The leaves consist of 3 leaflets, which are ovate, 3-6 cm long, 1.5-4 cm wide, with an acute or obtuse apex, rounded base, and asymmetrical base of the lateral leaflets. Each side of the margin has 8-11 rounded obtuse serrations. The upper surface is green with appressed short soft hairs, while the lower surface is light green and sparsely hairy. There are 7-8 pairs of lateral veins, and the reticulate veins are not prominently raised on the upper surface. The petiole is 2.5-6 cm long, the central leaflet petiole is 0.5-2.5 cm long, and the lateral leaflet petiole is 0.4-0.8 cm long, all sparsely hairy. The inflorescence is axillary, with a compound dichasial cyme; the inflorescence stalk is 2-7.5 cm long, sparsely hairy; the flower stalk is 1-3 mm long, with short soft hairs; the ovate flower buds are 1.3-1.8 mm high, with a rounded apex; the shallow disc-shaped calyx has a wavy or entire margin, and is sparsely hairy on the outside; the 4 petals are elliptic, 1.3-1.8 mm high, and covered with grayish glandular hairs on the outside; there are 4 stamens, with oblong anthers slightly longer than wide; the floral disc is well-developed, with 4 shallow lobes; the lower part of the ovary is adnate to the floral disc, the style is slender, and the stigma is slightly enlarged. The fruit is nearly spherical, 0.7-0.8 cm in diameter, with 2-3 seeds; the seeds are inverted-triangular, with a rounded apex, and the hilum is strap-shaped on the back near the middle, with prominent ridges on the upper part, bluntly ribbed on the surface, with prominent ridges on the ventral side, and concave depressions on both sides, extending from the base to the upper 1/3 of the seed, with prominent blunt ribbed elevations around the periphery. The flowering and fruiting period is from June to December. Distribution area: [not provided]

分布于陕西、湖北、四川、云南。生长环境
Distributed in Shaanxi, Hubei, Sichuan, and Yunnan. Growing environment.

生于海拔500-1000米山坡、溪边林缘或林中。
Born on the slopes of mountains at an altitude of 500-1000 meters, by the side of streams, or at the edge of forests.