老鸦胆叶，中药名。为苦木科植物鸦胆子Bruceajavanica(L.)Merr.的叶。分布于福建、台湾、广东、海南、广西、贵州、云南等地。具有清热解毒，燥湿杀虫之功效。常用于痈肿疔疮，毒蛇咬伤，湿疹。
Lao-ya-dan-ye, name of Chinese Medicinal Material. the leaves of Brucea javanica (L.) Merr., a plant of the family Simaroubaceae, is distributed in Fujian, Taiwan, Guangdong, Hainan, Guangxi, Guizhou, Yunnan, and other places. It has the functions of clearing heat, detoxifying, drying dampness, and killing parasites. It is often used for treating carbuncles, furuncles, snake bites, and eczema.

功效作用 功能
Efficacy, function.

清热解毒，燥湿杀虫。主治
Clearing heat and detoxifying, drying dampness and killing parasites. Mainly used for

痈肿疔疮，毒蛇咬伤，湿疹。用法用量
Boils, abscesses, snake bites, and eczema. Dosage and administration.

外用：适量，煎水洗；或捣敷；或研末撒。相关论述
External use: Apply an appropriate amount, either by washing with decoction, applying as a poultice, or sprinkling as a powder. This is based on relevant theories.

1、《本草求原》：“洗热毒，理跌打。”2、《岭南药物志》：“能清血热痢，杀虫，腐赘瘤息肉。”临床应用 相关配伍

1. "Ben Cao Qiu Yuan": "Clears heat toxins, treats injuries and bruises."2. "Lingnan Materia Medica": "Clears blood heat and dysentery, kills parasites, dissolves masses and removes growths." Clinical applications and related compatibility.

1、治皮肤湿疹：（鸦胆子）叶适量。研末撒患处，或用鲜叶煎水洗。（《广西本草选编》）2、治毛虱：（鸦胆子）鲜叶适量。煎水洗涤。（《广西本草选编》）加工炮制 采收加工

1. Treating eczema: Use an appropriate amount of fresh leaves of "yadanzi" (Herba Artemisiae Scopariae). Grind into powder and apply to the affected area, or boil the fresh leaves in water for washing. (From "Selected Compilation of Guangxi Materia Medica")2. Treating lice: Use an appropriate amount of fresh leaves of "yadanzi" (Herba Artemisiae Scopariae). Boil in water for washing. (From "Selected Compilation of Guangxi Materia Medica")Processing and preparation: Harvesting and processing.

全年均可采收，鲜用或晒干。植物学信息 植物种属
Harvesting can be done throughout the year, and the herbs can be used fresh or dried. Botanical information: Plant species.

苦木科鸦胆子属鸦胆子。形态特征
The genus of the family Menispermaceae is Menispermum. Characteristics of its morphology.

灌木或小乔木；嫩枝、叶柄和花序均被黄色柔毛。叶长20-40厘米，有小叶3-15；小叶卵形或卵状披针形，长5-10（-13）厘米，宽2.5-5（-6.5)厘米，先端渐尖，基部宽楔形至近圆形，通常略偏斜，边缘有粗齿，两面均被柔毛，背面较密；小叶柄短，长4-8毫米。花组成圆锥花序，雄花序长15-25（-40）厘米，雌花序长约为雄花序的一半；花细小，暗紫色，直径1.5-2毫米；雄花的花梗细弱，长约3毫米，萼片被微柔毛，长0.5-1毫米，宽0.3-0.5毫米；花瓣有稀疏的微柔毛或近于无毛，长1-2毫米，宽0.5-1毫米；花丝钻状，长0.6毫米，花药长0.4毫米；雌花的花梗长约2.5毫米，萼片与花瓣与雄花同，雄蕊退化或仅有痕迹。核果1-4，分离，长卵形，长6-8毫米，直径4-6毫米，成熟时灰黑色，干后有不规则多角形网纹，外壳硬骨质而脆，种仁黄白色，卵形，有薄膜，含油丰富，味极苦。花期夏季，果期8-10月。分布区域
Shrubs or small trees; young branches, petioles, and inflorescences are all covered with yellowish soft hairs. Leaves are 20-40 centimeters long, with 3-15 leaflets; leaflets are ovate or ovate-lanceolate, 5-10 (-13) centimeters long, 2.5-5 (-6.5) centimeters wide, gradually pointed at the apex, broadly cuneate to nearly rounded at the base, usually slightly oblique, with coarse teeth on the margin, both surfaces covered with soft hairs, denser on the back; leaflets have short petioles, 4-8 millimeters long. Flowers form a conical inflorescence, male inflorescence is 15-25 (-40) centimeters long, female inflorescence is about half the length of the male inflorescence; flowers are small, dark purple, 1.5-2 millimeters in diameter; the pedicels of male flowers are slender, about 3 millimeters long, sepals are slightly hairy, 0.5-1 millimeter long, 0.3-0.5 millimeters wide; petals have sparse fine hairs or are nearly hairless, 1-2 millimeters long, 0.5-1 millimeters wide; stamens are awl-shaped, 0.6 millimeters long, anthers are 0.4 millimeters long; the pedicels of female flowers are about 2.5 millimeters long, sepals and petals are similar to those of male flowers, stamens are degenerate or only traces are present. Fruits are 1-4, separated, oblong, 6-8 millimeters long, 4-6 millimeters in diameter, mature fruits are gray-black, irregularly polygonal reticulate when dry, with hard bony and brittle shells, yellowish-white seeds are ovoid, membranous, rich in oil, and extremely bitter in taste. Flowering period is in summer, fruiting period is from August to October. Distribution area.

分布于福建、台湾、广东、海南、广西、贵州、云南等地。生长环境
Distributed in Fujian, Taiwan, Guangdong, Hainan, Guangxi, Guizhou, Yunnan, and other regions. Growing environment.

老鸦胆叶生于海拔950-1000m的石灰山疏林中。
The leaves of Oldenlandia diffusa grow in sparse forests on limestone mountains at an altitude of 950-1000 meters above sea level.