苦竹叶，中药名。为禾本科植物苦竹Pleioblastusamarus(Keng)Kengf.的嫩叶。分布于江苏、安徽、浙江、江西、福建、湖北、湖南、四川、贵州、云南等地。具有清心，利尿明目，解毒之功效。常用于热病烦渴，失眠，小便短赤，口疮，目痛，失音，烫火伤。
Ku-zhu-ye, name of Chinese Medicinal Material. Bitter bamboo leaf) refers to the tender leaves of the bamboo species Pleioblastus amarus (Keng) Kengf., which belongs to the family Poaceae. It is distributed in Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Sichuan, Guizhou, Yunnan, and other regions. It is known for its effects of clearing the heart, promoting diuresis, improving vision, and detoxification. It is commonly used for conditions such as fever with thirst, insomnia, scanty dark urine, mouth ulcers, eye pain, loss of voice, and burns.

功效作用 功能
Efficacy, function.

清心，利尿明目，解毒。主治
Clears the mind, promotes urination, improves vision, and detoxifies. Mainly used for治疗.

热病烦渴，失眠，小便短赤，口疮，目痛，失音，烫火伤。用法用量
Fever with restlessness and thirst, insomnia, short and red urine, mouth ulcers, eye pain, loss of voice, and burns. Dosage and administration.

内服：煎汤，6-12g。外用：适量，烧存性研末调敷。注意事项
Internal use: Decoction, 6-12g. External use: Apply an appropriate amount of burnt alum powder. Precautions.

脾胃虚寒者慎用。药理作用
Those with Spleen and Stomach deficiency and cold should use it with caution. Pharmacological effects.

降血糖作用。相关论述
Hypoglycemic effect. Relevant discussion.

1、《分类草药性》：“治烦热，解毒，退小儿潮热，煅（末敷）汤火伤。”2、《安徽中草药》：“清心火。”3、《全国中草药汇编》：“解渴利尿。主治口渴，尿少色黄。”临床应用 相关配伍

1. "Classified herbal properties: treating restlessness and fever, detoxifying, reducing infantile fever, and applying as a paste for scalds caused by boiling water."2. "Anhui Chinese Herbal Medicine: clearing heart fire."3. "National Compilation of Chinese Herbal Medicines: relieving thirst and promoting diuresis. Mainly used for treating thirst and scanty yellow urine." Clinical applications and relevant compatibility.

1、治卒失声，声噎不出：浓煮苦竹叶服之。（《补缺肘后方》）2、治小儿头疮，耳上生疮：竹叶烧末和猪脂涂上。又以鸡子白敷之亦妙。（《子母秘录》）3、治卒得恶疮不识者：烧苦竹叶和鸡子黄敷。（《孙真人食忌》）附注

1. To treat sudden loss of voice and inability to speak due to throat obstruction: Boil thickly brewed bitter bamboo leaves and drink it. (From "Bu Que Zhou Hou Fang")2. To treat head sores in children, with sores appearing on the ears: Burn bamboo leaves to ash, mix with lard, and apply it. Alternatively, applying egg white is also effective. (From "Zi Mu Mi Lu")3. To treat sudden development of malignant sores with unknown cause: Burn bitter bamboo leaves and apply with egg yolk. (From "Sun Zhen Ren Shi Ji") Additional notes

四川草药“竹叶心”为慈竹属植物慈竹Sinocalamusaffinis(Rendle)McClure尚未展开呈圆筒形的嫩叶。本品甘、苦，凉。慈竹叶能清心热，治头晕。加工炮制 采收加工
The Sichuan herb "Zhu Ye Xin" refers to the tender cylindrical leaves of the plant Sinocalamus affinis (Rendle) McClure, which belongs to the genus Sinocalamus. This herb has a sweet and bitter taste, and possesses cooling properties. Zhu Ye Xin can clear heat from the heart and treat dizziness. It is harvested and processed after being collected.

夏、秋季采摘，鲜用或晒干。炮制方法
Harvest in summer or autumn, use fresh or sun-dry. Processing method.

取原药材，除去杂质，快洗，闷润，切中段，干燥，筛去灰屑。药材鉴别 药材性状
Collect the original medicinal herbs, remove impurities, rinse quickly, soak, cut into sections, dry, and sift out the ashes. Identify the medicinal herbs and their characteristics.

药材性状：干燥叶多呈细长卷筒状。展开后叶片为披针形，长6-12cm，宽10-15mm。先端尖锐，基部圆形，叶柄长6-10mm，上面灰绿色，光滑，下面粗糙有毛，主脉较粗，两侧脉8-16条。边缘的一侧有细锯齿。质脆而有弹性。气弱，味微苦。以叶嫩色绿、卷成筒状者为佳。饮片性状：呈不规则的段，余参见“药材性状”项。植物学信息 植物种属
Medicinal material characteristics: The dried leaves are mostly long and rolled up. When unfolded, the leaves are lanceolate, 6-12cm long and 10-15mm wide. The apex is sharp, the base is round, the petiole is 6-10mm long, gray-green and smooth on the upper surface, rough and hairy on the lower surface, with thick main veins and 8-16 lateral veins on each side. One side of the margin has fine serrations. The texture is brittle and elastic. It has a weak aroma and a slightly bitter taste. It is best to use young green leaves that are rolled into a tube. Characteristics of the decoction pieces: Irregular segments, for the rest, see the item "Medicinal material characteristics". Botanical information Plant species.

禾本科植物苦竹。形态特征
Bitter bamboo is a herbaceous plant of the Poaceae family. Its morphological characteristics include:

苦竹，又名伞柄竹。竿高3-5米，粗1.5-2厘米，直立，竿壁厚约6毫米，幼竿淡绿色，具白粉，老后渐转绿黄色，被灰白色粉斑；节间圆筒形，在分枝一侧的下部稍扁平，通常长27-29厘米，节下方粉环明显；节内长约6毫米；竿环隆起，高于箨环；箨环留有箨鞘基部木栓质的残留物，在幼竿的箨环还具一圈发达的棕紫褐色刺毛；竿每节具5-7枝，枝稍开展。箨鞘革质，绿色，被较厚白粉，上部边缘橙黄色至焦枯色，背部无毛或具棕红色或白色微细刺毛，易脱落，基部密生棕色刺毛，边缘密生金黄色纤毛；繸耳不明显或无，具数条直立的短繸毛，易脱落而变无繸毛；箨舌截形，高约1-2毫米，淡绿色，被厚的脱落性白粉，边缘具短纤毛；箨片狭长披针形，开展，易向内卷折，腹面无毛，背面有白色不明显短绒毛，边缘具锯齿。末级小枝具3或4叶；叶鞘无毛，呈干草黄色，具细纵肋；无叶耳和箨口繸毛；叶舌紫红色，高约2毫米；叶片椭圆状披针形，长4-20厘米，宽1.2-2.9厘米，先端短渐尖，基部楔形或宽楔形，下表面淡绿色，生有白色绒毛，尤以基部为甚，次脉4-8对，小横脉清楚，叶缘两侧有细锯齿；叶柄长约2毫米。总状花序或圆锥花序，具3-6小穗，侧生于主枝或小枝的下部各节，基部为1片苞片所包围，小穗柄被微毛；小穗含8-13朵小花，长4-7厘米，绿色或绿黄色，被白粉；小穗轴节长4-5毫米，一侧扁平，上部被白色微毛，下部无毛，为外稃所包围，顶端膨大呈杯状，边缘具短纤毛；颖3-5片，向上逐渐变大，第一颖可为鳞片状，先端渐尖或短尖，背部被微毛和白粉，第二颖较第一颖宽大，先端短尖，被毛和白粉，第三、四、五颖通常与外稃相似而稍小；外稃卵状披针形，长8-11毫米，具9-11脉，有小横脉，顶端尖至具小尖头，无毛而被有较厚的白粉，上部边缘有极微细毛，因后者常脱落而变为无毛；内稃通常长于外稃，罕或与之等长，先端通常不分裂，被纤毛，脊上具较密的纤毛，脊间密被较厚白粉和微毛；鳞被3，卵形或倒卵形，后方一片形较窄，上部边缘具纤毛；花药淡黄色，长约5毫米；子房狭窄，长约2毫米，无毛，上部略呈三棱形；花柱短，柱头3，羽毛状。成熟果实未见。笋期6月，花期4-5月。分布区域
Bitter bamboo, also known as umbrella handle bamboo. The stem is 3-5 meters tall, 1.5-2 centimeters thick, erect, with a wall thickness of about 6 millimeters. The young stem is light green with white powder, gradually turning yellow-green as it ages, with gray-white powdery spots. The internodes are cylindrical, slightly flattened on one side at the lower part of the branching, usually 27-29 centimeters long, with a prominent powdery ring below the node; the internode is about 6 millimeters long. The stem nodes are raised, higher than the sheath nodes; the sheath nodes have remnants of corky material at the base, with a ring of well-developed brownish-purple-brown prickles on the sheath nodes of young stems; each stem node has 5-7 branches, slightly spreading. The sheath is leathery, green, covered with thick white powder, orange-yellow to brownish at the upper edge, with no hairs on the back or with reddish-brown or white fine prickles, easily shed, densely covered with brown prickles at the base, and golden-yellow hairs on the edges; auricles are not obvious or absent, with several erect short auricle hairs that are easily shed and become hairless; the ligule is truncate, about 1-2 millimeters high, light green, covered with thick, sheddable white powder, with short hairs on the edges; the leaf blade is narrowly lanceolate, spreading, easily inwardly rolled, with no hairs on the lower surface, white short hairs on the back, and serrations on the edges. The ultimate branchlets have 3 or 4 leaves; the leaf sheath is hairless, straw-yellow, with fine longitudinal ribs; no auricles or auricular hairs on the sheath mouth; the ligule is purplish-red, about 2 millimeters high; the leaf blade is elliptic-lanceolate, 4-20 centimeters long, 1.2-2.9 centimeters wide, shortly acuminate at the apex, cuneate or broadly cuneate at the base, light green on the lower surface, with white hairs, especially at the base, 4-8 pairs of secondary veins, clear minor veins, fine serrations on both sides of the leaf margin; the petiole is about 2 millimeters long. The inflorescence is a panicle or raceme, with 3-6 spikelets, laterally borne on each node of the main branch or branchlets, surrounded by a bract at the base, the spikelet stalk is slightly hairy; the spikelet contains 8-13 florets, 4-7 centimeters long, green or yellow-green, covered with white powder; the spikelet axis joint is 4-5 millimeters long, flattened on one side, with white hairs on the upper part, hairless on the lower part, surrounded by the outer glume, swollen at the top into a cup shape, with short hairs on the edges; there are 3-5 glumes, gradually increasing in size upwards, the first glume may be scale-like, gradually acute or shortly pointed at the apex, hairy and covered with white powder on the back, the second glume larger than the first, shortly pointed at the apex, hairy and covered with powder, the third, fourth, and fifth glumes usually similar to the outer glume but slightly smaller; the outer glume is ovate-lanceolate, 8-11 millimeters long, with 9-11 veins, small cross veins, pointed at the tip with a small point, hairless and covered with thick white powder, with very fine hairs on the upper edge, which often shed and become hairless; the inner glume is usually longer than the outer glume, rarely equal in length, usually not divided at the apex, hairy, with denser hairs on the ridge, densely covered with thick white powder and fine hairs between the ridges; the scales are 3, ovate or obovate, with a narrower shape at the back, with fine hairs on the upper edge; the anthers are pale yellow, about 5 millimeters long; the ovary is narrow, about 2 millimeters long, hairless, slightly triangular at the top; the style is short, with 3 stigmas, feather-like. Mature fruits have not been observed. The bamboo shoots appear in June, and the flowering period is in April-May. Distribution area.

分布于江苏、安徽、浙江、江西、福建、湖北、湖南、四川、贵州、云南等地。生长环境
Distributed in Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Hubei, Hunan, Sichuan, Guizhou, Yunnan and other regions. Growing environment.

生于向阳山坡或平原，多为栽培。
Born on sunny slopes or plains, mostly cultivated.