罗望子叶黄檀，中药名。为豆科植物羽叶黄檀Dalbergiapinnata（Lour.）Prain[D.tamarindifoliaRoxd.;DerrispinnataLour.]的根及茎叶。分布于广东、海南、广西、云南、西藏等地。具有祛风止痛，活血，敛疮的作用。主治风湿痹痛，跌打损伤，月经不调，下肢溃疡。
Luo-wang-zi-ye-huang-tan, name of Chinese Medicinal Material. s the root and stem leaves of the leguminous plant Dalbergia pinnata (Lour.) Prain [D. tamarindifolia Roxd.; Derris pinnata Lour.]. It is distributed in Guangdong, Hainan, Guangxi, Yunnan, Tibet, and other places. It has the functions of dispelling wind and relieving pain, promoting blood circulation, and healing wounds. It is mainly used for rheumatic pain, bruises, irregular menstruation, and lower limb ulcers.

功效作用 Efficacy and Functions

祛风止痛，活血，敛疮。
Dispelling wind and relieving pain, promoting blood circulation, and healing wounds.

主治 Indications

风湿痹痛，跌打损伤，月经不调，下肢溃疡。
Rheumatic pain, bruises and sprains, irregular menstruation, and lower limb ulcers.

用法用量 Dosage and Administration

内服：煎汤，15-30g。外用：适量，捣敷。
Internal use: Decoction, 15-30g. External use: Appropriate amount, pounded for application.

加工炮制 Processing and Preparation

采收加工：夏、秋季采收，切碎，晒干或鲜用。
Harvest in summer or autumn, chop, dry in the sun or use fresh.

植物学信息 Botanical Information

植物种属：豆科植物羽叶黄檀。
The leguminous plant is Pterocarpus indicus.

形态特征 Morphological Characteristics

羽叶黄檀，又名斜叶檀（《中国中药资源志要》），斜叶黄檀（《中国植物志》）。乔木，高3-13m。有曲折匍匐枝，或为灌木状藤本，幼枝密被短柔毛。奇数羽状复叶，互生，长10-14cm；叶柄被褐色短柔毛；托叶披针形，长约5mm，密被微柔毛；小叶21-41，斜长圆形，长1.5-1.9cm，宽约7.5mm，先端圆或微缺，基部斜楔形，两面有短柔毛；叶轴密被短柔毛。花与叶同时开放，圆锥花序腋生，有或无短总花梗，花序具有伞房状枝；总花梗、花序枝和花梗均密被微柔毛；基生小苞片和副萼状小苞片卵形，被微柔毛，不脱落；花萼钟状，带淡黄色，外面有或无毛，萼齿卵形，上面2齿近于合生；花冠白色，瓣片有长爪，旗瓣卵形，反折；雄蕊9-10，单体；子房有柄，无毛。荚果舌状，长2.5-6.5cm，宽1-1.3cm，干后棕色。种子1-3颗。花期1-3月，果期6-7月。
Dalbergia odorifera, also known as slanting leaf rosewood in "Compendium of Chinese Herbal Medicine Resources" and slanting leaf rosewood in "Flora of China", is a tall tree reaching 3-13m in height. It has twisted and creeping branches, or can grow as a shrubby vine, with young branches densely covered in short soft hairs. Its odd-pinnate compound leaves are alternate, 10-14cm long, with leaf stalks covered in brown short soft hairs, and lanceolate stipules about 5mm long, densely covered in tiny soft hairs. It has 21-41 leaflets, oblique-elliptic in shape, 1.5-1.9cm long and about 7.5mm wide, with rounded or slightly notched tips, oblique wedge-shaped bases, and short soft hairs on both surfaces, while the leaf rachis is densely covered in short soft hairs. The flowers and leaves bloom simultaneously, with axillary racemes, sometimes with short pedicels, and umbrella-like branches; the pedicels, raceme branches, and flower stalks are all densely covered in tiny soft hairs. The basal bracteoles and pseudocalyx are ovate, covered in tiny soft hairs, and do not fall off; the calyx is bell-shaped, pale yellow, with or without hairs on the outside, and the calyx teeth are ovate, with the upper 2 teeth nearly connate. The corolla is white, with long claws, and the standard petal is ovate and reflexed. It has 9-10 stamens, each with a single anther, and the ovary is stalked and hairless. The pod is tongue-shaped, 2.5-6.5cm long and 1-1.3cm wide, turning brown when dry, containing 1-3 seeds. It flowers from January to March and fruits from June to July.

分布区域 Distribution Area

分布于广东、海南、广西、云南、西藏等地。
Distributed in Guangdong, Hainan, Guangxi, Yunnan, Tibet and other regions.

生长环境 Growing Environment

生于海拔1500m左右的山地林中。
Born in the mountainous forest at an altitude of around 1500 meters.