化香树，中药名。为胡桃科化香树属植物化香树PlatycaryastrobilaceaSieb.etZucc的叶。具有解毒，止痒，杀虫之功效。用于疮疔肿毒，阴囊湿疹，顽癣。
Hua-xiang-shu, name of Chinese Medicinal Material. Platycarya strobilacea Sieb. et Zucc) refers to the leaves of the plant Platycarya strobilacea Sieb. et Zucc, which belongs to the Juglandaceae family. It has the functions of detoxification, itch relief, and insecticidal effects. It is used for treating ulcers, carbuncles, and toxic swellings, as well as eczema in the scrotum and stubborn tinea.

功效作用 Efficacy and Functions

解毒，止痒，杀虫。
Detoxification, anti-itch, insecticidal.

主治 Indications

用于疮疔肿毒，阴囊湿疹，顽癣。
Used for ulceration, abscess, swelling, and toxicity, as well as scrotal eczema and stubborn tinea.

用法用量 Dosage and Administration

外用适量，煎水洗；或嫩叶搽患处。熏烟可以驱蚊；投入粪坑、污水可以灭蛆孑孓。
Apply externally in appropriate amount, decoct and wash with water; or apply tender leaves to the affected area. Fumigation can repel mosquitoes; throwing into a cesspit or sewage can eliminate maggots.

注意事项 Precautions

不能内服。
Cannot be taken orally.

药理作用 Pharmacological Effects

茎叶对金黄色葡萄球菌及绿脓杆菌有抑制作用。
The stems and leaves have inhibitory effects on Staphylococcus aureus and Pseudomonas aeruginosa.

相关论述 Relevant Discussion

《贵州民间药物》：“治骨痈流脓日久不收口，有多骨；化香树叶半斤捣烂泡冷水，将患处浸入药水中数小时，用镊子拔出多骨，随用药水洗之。”
"Guizhou Folk Medicine": "For the treatment of chronic suppurative osteomyelitis with non-healing wounds and multiple bone sequestra; half a pound of crushed fragrant sumac leaves soaked in cold water, the affected area immersed in the medicinal solution for several hours, then use forceps to remove the multiple bone sequestra, followed by washing with the medicinal solution."

临床应用 Clinical Application

痈疽疔毒类急性炎症：化香树叶，雷公藤叶、芹菜叶、大蒜各等份（均用鲜品），捣烂外敷。疮疡溃烂后不可使用。（《常用中草药配方》）
Acute inflammation of abscesses and ulcers: Use equal amounts of fresh fragrant sumac leaves, thunder god vine leaves, celery leaves, and garlic. Mash them into a paste and apply externally. Do not use after the ulcer has burst. (From "Commonly Used Traditional Chinese Medicine Formulas")

附注 Note

本植物的果序（化香树果）亦供药用，辛、温，活血行气、止痛、杀虫止痒。适用于内伤胸胀、跌打损伤、筋骨疼痛，痈肿，湿疮，疥癣。内服：煎汤，10-20g。外用：煎水洗；或研末调敷。
The fruiting spike of this plant (Carya cathayensis) is also used medicinally. It is pungent and warm, promoting blood circulation, regulating qi, relieving pain, killing parasites, and relieving itching. It is indicated for chest distension due to internal injury, traumatic injuries, musculoskeletal pain, abscesses, moist sores, scabies, and ringworm. Internal use: decoction, 10–20g. External use: decocted for washing; or ground into powder and applied as a paste.

加工炮制 Processing and Preparation

采收加工四季可采，洗净鲜用或晒干。
The herb can be harvested all year round, washed, and used fresh or dried.

炮制方法去杂质，晒干。
Processing method: remove impurities and dry in the sun.

药材鉴别 Medicinal Material Identification

药材性状羽状复叶多不完整，叶柄及叶轴较粗，淡黄棕色。小叶片多皱缩破碎，完整者宽披针形，长4-10cm，宽2-3cm，先端长渐尖，基部偏斜，略呈镰状弯曲，边缘有重锯齿。上表面灰绿色，下表面黄绿色。叶片薄革质，易碎。气微清香，味淡。以小叶多、色绿、气清香者为佳。
The pinnate compound leaves are mostly incomplete, with thick petioles and rachises of a pale yellow-brown color. The leaflets are often wrinkled and fragmented, with intact ones being broadly lanceolate, 4–10 cm long and 2–3 cm wide, gradually tapering at the apex, oblique at the base, slightly sickle-shaped and curved, with heavily serrated margins. The upper surface is grayish-green, while the lower surface is yellowish-green. The leaflets are thin and leathery, and easily breakable. They have a faint, pleasant aroma and a mild taste. Those with numerous small leaflets, green color, and a clear fragrance are considered superior.

植物学信息 Botanical Information

植物种属胡桃科化香树属植物化香树。
The plant belongs to the genus Platycarya in the family Juglandaceae, known as Platycarya strobilacea.

形态特征 Morphological Characteristics

落叶灌木或小乔木，高5-15m。幼枝通常被棕色绒毛。奇数羽状复叶互生；小叶7-23枚，对生，无柄；叶片薄革质，卵状披针形至长椭圆状披针形，长4-12cm，宽2-4cm，先端渐成细尖，基部宽楔形，稍偏斜，边缘有重锯齿，上面暗绿色，下面黄绿色，幼时有密毛，或老时光滑，仅脉腋有簇毛。夏、秋季开花，花单性，雌雄同株；花序穗状，直立，伞房状排列在小枝顶端，中央顶端的1条常为两性花序，雌花序在下，雄花序在上，开花后脱落，仅留下雌花序部分。雄花苞片披针形，浅黄绿色，无小苞片及花被片；雄蕊8；雌花具一卵状披针形苞片，无小苞片，具2花被片，贴生于子房上，雌蕊1，无花柱，柱头2裂。果穗卵状椭圆形至长椭圆柱形，长2.5-5cm，直径2-3cm，苞片宿存，膜质，褐色；小坚果扁平，圆形，具3窄翅。种子卵形，种皮膜质。花期5-6月，果期7-10月。
Deciduous shrub or small tree, 5–15 m tall. Young branches are usually covered with brown pubescence. Odd-pinnate compound leaves are alternate; with 7–23 sessile leaflets arranged oppositely. Leaflets are thin leathery, ovate-lanceolate to elliptic-lanceolate, 4–12 cm long, 2–4 cm wide, gradually tapering to a fine point, broadly cuneate and slightly oblique at the base, with doubly serrated margins. Upper surface is dark green, lower surface yellowish-green; densely hairy when young, becoming glabrous with age except for tufts of hair in vein axils. Flowers bloom in summer and autumn, unisexual and monoecious. Inflorescences are erect spikes arranged in a corymb at the twig tips. The central terminal spike is often bisexual, with female flowers below and male flowers above; after flowering, the male portion falls off, leaving only the persistent female part. Male bracts are lanceolate, pale yellow-green, without small bracts or tepals; stamens 8. Female flowers have an ovate-lanceolate bract, no small bracts, 2 tepals adnate to the ovary, single pistil with no style and a 2-lobed stigma. Fruit spike is ovate-elliptical to elongated-cylindrical, 2.5–5 cm long, 2–3 cm in diameter, with persistent membranous brown bracts. Small nuts are flat and round with three narrow wings. Seeds are ovoid with a membranous testa. Flowering period: May–June; fruiting period: July–October.

分布区域 Distribution Area

河南、陕西、甘肃、山东、江苏、安徽、浙江、江西、福建、湖北、湖南、四川、云南、广东、广西等地。
Distributed in Henan, Shaanxi, Gansu, Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Sichuan, Yunnan, Guangdong, Guangxi, and other regions.

生长环境 Growing Environment

为中国原产树种。多生于向阳山坡或杂木林中。
It is a native Chinese tree species, commonly found on sunny slopes or in mixed forests.