枫杨，中药材名。为胡桃科枫杨属植物枫杨PterocaryastenopteraDC.，以枝及叶入药。具有杀虫止痒，利尿消肿的功效。叶主治血吸虫病，外用治黄癣，脚癣。枝、叶捣烂可杀蛆虫、孑孓。
Feng-yang, name of Chinese Medicinal Material. the branches and leaves of the plant Pterocarya stenoptera DC. of the Juglandaceae family, is used as a traditional Chinese medicine. It has the effects of insecticidal and antipruritic, diuretic and anti-swelling. The leaves are mainly used to treat schistosomiasis, and externally used to treat ringworm and athlete's foot. Crushing the branches and leaves can kill maggots and mites.

功效作用 功能
Efficacy and Functions

杀虫止痒，利尿消肿。主治
Killing insects to relieve itching, diuresis to reduce swelling. Used to treat.

1、叶：血吸虫病；外用治黄癣，脚癣。2、枝、叶捣烂可杀蛆虫、孑孓。用法用量

1. Leaves: Used for schistosomiasis; externally applied to treat tinea versicolor and athlete's foot.2. Crushing the branches and leaves can kill maggots and larvae. Dosage and usage.

6-9g；外用适量，鲜叶捣烂敷或搽患处。化学成分
6-9g; for external use, crush fresh leaves and apply them to the affected area. Chemical composition.

叶含水杨酸、内酯及酚类。树皮、果实含鞣质。种子含脂肪油。药理作用
The leaves contain salicylic acid, lactone, and phenols. The bark and fruit contain tannins. The seeds contain fatty oils. Pharmacological effects.

本品树叶在1：100以上稀释度有良好的杀灭钩端螺旋体之效;在动物体内试验亦有抑制钩端螺旋体生长的作用。临床应用 相关配伍
This product's leaves have a good effect in killing Spirochaeta pallida at a dilution of 1:100 or higher; in animal experiments, it also has an inhibitory effect on the growth of Spirochaeta pallida. Relevant compatibility in clinical applications.

血吸虫病：鲜枫杨树叶500g，加水1.5斤，煮沸10-15分钟，煎取药液500-600ml，每服100ml，每日3次，20-30天为一个疗程。加工炮制 采收加工
Schistosomiasis: Take 500g of fresh poplar leaves, add 1.5 kg of water, boil for 10-15 minutes, decoct to obtain 500-600ml of medicinal liquid, take 100ml per dose, three times a day, for a course of 20-30 days. Processing method: Harvest and process.

夏秋季采，晒干备用。叶多鲜用。植物学信息 植物种属
Harvest in summer and autumn, dry in the sun for later use. The fresh leaves are commonly used. Botanical information: Genus of the plant.

胡桃科枫杨属植物枫杨。形态特征
The plant belongs to the Juglandaceae family and the Populus genus. Its morphological characteristics.

大乔木，高达30m，胸径达1m；幼树树皮平滑，浅灰色，老时则深纵裂；小枝灰色至暗褐色，具灰黄色皮孔；芽具柄，密被锈褐色盾状着生的腺体。叶多为偶数或稀奇数羽状复叶，长8-16cm（稀达25cm），叶柄长2-5cm，叶轴具翅至翅不甚发达，与叶柄一样被有疏或密的短毛；小叶10-16枚（稀6-25枚），无小叶柄，对生或稀近对生，长椭圆形一至长椭圆状披针形，长约8-12cm，宽2-3cm，顶端常钝圆或稀急尖，基部歪斜，上方1侧楔形至阔楔形，下方1侧圆形，边缘有向内弯的细锯齿，上面被有细小的浅色疣状凸起，沿中脉及侧脉被有极短的星芒状毛，下面幼时被有散生的短柔毛，成长后脱落而仅留有极稀疏的腺体及侧脉腋内留有1丛星芒状毛。雄性葇荑花序长约6-10cm，单独生于去年生枝条上叶痕腋内，花序轴常有稀疏的星芒状毛。雄花常具1（稀2或3）枚发育的花被片，雄蕊5-12枚。雌性葇荑花序顶生，长约10-15cm，花序轴密被星芒状毛及单毛，下端不生花的部分长达3cm，具2枚长达5mm的不孕性苞片。雌花几乎无梗，苞片及小苞片基部常有细小的星芒状毛，并密被腺体。果序长20-45cm，果序轴常被有宿存的毛。果实长椭圆形，长约6-7mm，基部常有宿存的星芒状毛；果翅狭，条形或阔条形，长12-20mm，宽3-6mm，具近于平行的脉。花期4-5月，果熟期8-9月。分布区域
The large tree can grow up to 30 meters tall with a diameter at breast height of up to 1 meter. The bark of young trees is smooth and light gray, but becomes deeply fissured as the tree ages. The small branches are gray to dark brown, with grayish-yellow lenticels. The buds have stalks and are densely covered with rust-brown shield-shaped glands. The leaves are mostly pinnately compound, with 8-16 cm in length (sometimes up to 25 cm). The leaf stalk is 2-5 cm long, and the leaf axis has wings that are not well developed, similar to the leaf stalk, and sparsely or densely covered with short hairs. There are 10-16 (sometimes 6-25) leaflets, without petioles, arranged opposite or sub-opposite, elliptic to lanceolate, about 8-12 cm long and 2-3 cm wide. The leaflets have bluntly rounded or sometimes acute tips, oblique bases, serrated margins that curve inwards, and small light-colored warty protrusions on the upper surface. They are covered with very short stellate hairs along the midrib and veins on the upper side, and scattered short soft hairs on the lower side when young. As they mature, the hairs fall off, leaving only very sparse glands and stellate hairs at the vein axils. The male catkins are about 6-10 cm long, borne singly in the leaf axils of last year's twigs, with sparse stellate hairs on the catkin axis. Male flowers usually have 1 (rarely 2 or 3) developed bracts and 5-12 stamens. Female catkins are terminal, about 10-15 cm long, densely covered with stellate and single hairs on the catkin axis, with a 3 cm long non-flowering portion at the base and two sterile bracts up to 5 mm long. Female flowers are nearly sessile, with fine stellate hairs at the base of the bracts and bracteoles, and dense glands. The fruiting catkins are 20-45 cm long, with the fruiting axis often covered with persistent hairs. The fruits are elongated, about 6-7 mm long, with persistent stellate hairs at the base. The wings are narrow, linear or broadly linear, 12-20 mm long and 3-6 mm wide, with nearly parallel veins. The flowering period is from April to May, and the fruiting period is from August to September. Distribution area.

产于中国陕西、河南、山东、安徽、江苏、浙江、江西、福建、台湾、广东、广西、湖南、湖北、四川、贵州、云南，在长江流域和淮河流域最为常见，华北和东北仅有栽培。生长环境
It is mainly produced in Shaanxi, Henan, Shandong, Anhui, Jiangsu, Zhejiang, Jiangxi, Fujian, Taiwan, Guangdong, Guangxi, Hunan, Hubei, Sichuan, Guizhou, and Yunnan provinces in China, with the most common areas being the Yangtze River Basin and the Huai River Basin. It is only cultivated in North China and Northeast China.

生于海拔1500米以下的沿溪涧河滩、阴湿山坡地的林中。生长见习
Grows in the forests along streams and riverbanks below 1500 meters above sea level, as well as in damp and shady mountain slopes.

喜温暖湿润环境，不耐严寒，北部地区栽培，冬季需防寒。对土壤要求不严，山坡、沿河，沟边及马路两旁均可栽培。繁殖方式
Prefers warm and moist environments, intolerant to severe cold, cultivated in northern regions, needs protection from cold in winter. Not strict in soil requirements, can be cultivated on hillsides, along rivers, ditches, and both sides of roads. Propagation methods.

种子繁殖。栽培技术
Seed propagation. Cultivation techniques.

春季育苗，播前用温水浸泡4-5小时后条播覆土4-5分。苗期需注意管理，8月施肥一次。第二年春季或秋季移栽。
In spring, soak the seeds in warm water for 4-5 hours before sowing, then cover them with soil and press gently. During the seedling stage, proper management is required, and fertilization should be done once in August. Transplanting can be done in the following spring or autumn of the second year.