菖蒲叶，中药名。为天南星科植物石菖蒲Acorus tatarinowii Schott的叶。具有洗疥、大风疮的功效。
Chang-pu-ye, name of Chinese Medicinal Material. Acorus tatarinowii Schott leaf) refers to the leaves of Acorus tatarinowii Schott, a plant in the Araceae family. It is known for its efficacy in treating scabies and eczema.

功效作用 功能
The efficacy and functions.

辟秒杀虫，解毒疗疮。主治
Repelling insects and killing parasites, detoxifying and treating sores. Mainly used for...

《纲目》：洗疥，大风疮。用法用量
"Outline": Wash scabies and large wind sores. Usage and dosage.

内服：煎汤，6-9g。外用：捣烂敷患处或煎水洗。化学成分
Internal use: Decoction, 6-9g. External use: Crush and apply to the affected area or use as a wash. Chemical composition.

含挥发油0.25％，其中主要成分为β-细辛醚73.4％、细辛醚13.7％、石竹烯4.0％、α-草烯2.0％和石菖醚等。台湾产的本品鲜叶中含油0.5％，其主要成分为甲基胡椒酚93.6％和α-芹子烯2.0％。加工炮制 采收加工
The volatile oil content is 0.25%, with the main components being 73.4% β-asarone ether, 13.7% asarone ether, 4.0% caryophyllene, 2.0% α-pinene, and other components such as calamus ether. The product produced in Taiwan contains 0.5% oil in fresh leaves, with its main components being 93.6% methyl eugenol and 2.0% α-terpinene. Processing and preparation are carried out after harvesting.

5-7月采收，晒干。植物学信息 植物种属
Harvest from May to July and sun-dry. Botanical information: plant species.

天南星科植物石菖蒲。形态特征
The plant you are referring to is Acorus tatarinowii, also known as Chinese sweet flag. It is a perennial herbaceous plant with long, narrow leaves and a characteristic aromatic rhizome.

多年生草本植物。根茎芳香，粗2-5mm，外部淡褐色，节间长3-5mm，根肉质，具多数须根，根茎上部分枝甚密，植株因而成丛生状，分枝常被纤维状宿存叶基。叶无柄，叶片薄，基部两侧膜质叶鞘宽可达5mm，上延几达叶片中部，渐狭，脱落；叶片暗绿色，线形，长20-30（50）cm，基部对折，中部以上平展，宽7-13mm，先端渐狭，无中肋，平行脉多数，稍隆起。花序柄腋生，长4-15cm，三棱形。叶状佛焰苞长13-25cm，为肉穗花序长的2-5倍或更长，稀近等长；肉穗花序圆柱状，长（2.5）4-6.5（8.5）cm，粗4-7mm，上部渐尖，直立或稍弯。花白色。成熟果序长7-8cm，直径可达1cm。幼果绿色，成熟时黄绿色或黄白色。花果期2-6月。繁殖方式
Perennial herbaceous plant. The rhizome is aromatic, 2-5mm thick, pale brown on the outside, with internodes 3-5mm long. The root is fleshy, with numerous fibrous roots. The upper part of the rhizome branches densely, forming a tufted growth habit, and the branches are often covered with fibrous persistent leaf bases. The leaves are sessile, thin, with membranous leaf sheaths on both sides of the base, up to 5mm wide, extending to the middle of the leaf and gradually narrowing before falling off. The leaf blade is dark green, linear, 20-30 (50) cm long, folded at the base, spreading above the middle, 7-13mm wide, tapering at the apex, without a midrib, with numerous parallel veins, slightly raised. The inflorescence stalk arises from the leaf axil, 4-15cm long, triangular. The leaf-like spathe is 13-25cm long, 2-5 times or more the length of the spadix, rarely nearly equal in length; the spadix is cylindrical, (2.5) 4-6.5 (8.5) cm long, 4-7mm thick, gradually pointed at the top, erect or slightly curved. The flowers are white. The mature fruiting spike is 7-8cm long, with a diameter of up to 1cm. The young fruit is green, turning yellow-green or yellow-white when ripe. The flowering and fruiting period is from February to June. The plant reproduces by...

根茎繁殖。栽培技术
Rhizome propagation. Cultivation techniques.

春季挖出根茎，选带有须根和叶片的小根茎作种，按行株距30cm×15cm穴栽，每穴栽2-3株，栽后盖土压紧。病虫防治
In spring, dig out the rhizomes and select small rhizomes with roots and leaves as seeds. Plant them in holes with a spacing of 30cm×15cm, planting 2-3 plants per hole, and then cover the soil tightly. Pay attention to disease and pest control.

虫害有稻蝗，为害叶片，可用90%晶体敌百虫1000倍液防治。
Pest insects such as rice grasshoppers damage the leaves. They can be controlled using 90% crystal trichlorfon at a dilution of 1000 times.