龙舌兰为石蒜科植物龙舌兰（AgaveamericanaL.）的叶。四季采叶，洗净，鲜用或沸水烫后晒干。华南及西南各省区常引种栽培，在云南已逸生多年，原产于热带美洲。味苦、酸，性温，具有解毒拔脓、杀虫、止血的功效，用于治疗痈疽疮疡、疥癣、盆腔炎，子宫出血，顽固性溃疡，足底脓肿等病症。
Agave (Long-, name of Chinese Medicinal Material. e-lan). The leaves are harvested throughout the year, washed, and used fresh or dried after blanching in boiling water. It is commonly cultivated in the southern and southwestern provinces of China, and has been naturalized for many years in Yunnan. It is originally from tropical America. It has a bitter and sour taste, warm nature, and has the effects of detoxification, pus drainage, insecticidal, and hemostasis. It is used to treat carbuncles, sores, scabies, pelvic inflammatory disease, uterine bleeding, refractory ulcers, and plantar abscesses.

功效作用 功能
Efficacy and Functions

解毒拔脓，杀虫，止血。主治
Detoxification, pus drainage, insecticidal, hemostasis. Mainly used for治疗.

痈疽疮疡，疥癣，盆腔炎，子宫出血，顽固性溃疡，足底脓肿。用法用量
Boils, ulcers, sores, scabies, pelvic inflammatory disease, uterine bleeding, stubborn ulcers, and plantar abscess. Dosage and administration.

内服：煎汤，10～15g；外用：适量，捣敷。药理作用
Internal use: Decoction, 10-15g; External use: appropriate amount, pounded for application. Pharmacological actions.

抗炎作用：龙舌兰水提取液（0.3g/kg）对大鼠棉球肉芽增生、醋酸引起小鼠毛细血管通透性增高及醋酸引起小鼠躯体疼痛均有显著的抑制作用。临床应用 相关配伍
Anti-inflammatory effect: Agave water extract (0.3g/kg) has a significant inhibitory effect on granuloma formation in rats induced by cotton ball implantation, increased capillary permeability in mice induced by acetic acid, and acetic acid-induced body pain in mice. Clinical application and relevant compatibility.

1、治久年溃疡：鲜龙舌兰嫩叶45g，冬蜜30g。捣烂敷患处。（福州台江《民间实用草药》）2、治足底脓肿：鲜龙舌兰叶适量，加雄黄少许。捣烂敷患处。（《浙江药用植物志》）3、治皮肤疥癣：鲜龙舌兰叶搓擦患处，或水煎熏洗。4、治子宫出血：鲜龙舌兰叶15g。水煎服。（3～4方出自《青岛中草药手册》）加工炮制 采收加工

1. Treatment for chronic ulcers: 45g of fresh aloe vera tender leaves, 30g of winter honey. Mash and apply to the affected area. (From "Folk Practical Herbal Medicine in Taijiang, Fuzhou")2. Treatment for abscess on the sole of the foot: appropriate amount of fresh aloe vera leaves, a small amount of realgar. Mash and apply to the affected area. (From "Zhejiang Medicinal Plants")3. Treatment for skin scabies: Rub the affected area with fresh aloe vera leaves, or decoct and wash with the liquid.4. Treatment for uterine bleeding: 15g of fresh aloe vera leaves. Decoct and take orally. (The third and fourth remedies are from the "Qingdao Chinese Herbal Medicine Manual") Processing and preparation: Harvest and process.

四季采叶，洗净，鲜用或沸水烫后晒干。药材鉴别 药材性状
Harvest the leaves in all four seasons, wash them clean, and use them fresh or blanch them in boiling water before drying them in the sun. Identification of medicinal herbs and their characteristics.

药材性状：叶片皱缩卷曲，展平后完整者呈匙状披针形，长30～65cm，宽1.7～6.2cm。两面黄绿色或暗绿色，具密集的纵直纹理和折断痕，有的断痕处可见棕黄色颗粒状物；先端尖刺状，基部渐窄，两侧边缘微显浅波状，在突起处均具棕色硬刺。质坚韧，难折断。气微臭，味酸、涩。植物学信息 植物种属
Medicinal material characteristics: The leaves are wrinkled and curled, and when flattened, they are spoon-shaped or lanceolate, 30-65cm long and 1.7-6.2cm wide. They are yellow-green or dark green on both sides, with dense longitudinal veins and break marks. Some broken marks may have brownish-yellow granular substances. The tips are sharp, tapering at the base, with slightly wavy edges on both sides, and brown hard thorns at the protrusions. The texture is tough and difficult to break. It has a slightly foul smell, sour and astringent taste. Botanical information: Plant species.

石蒜科植物龙舌兰。形态特征
Agave, a plant in the Asparagaceae family. Morphological characteristics.

多年生大型草本。茎短。叶常约30余片呈莲座状着生茎上；叶片肥厚，匙状倒披针形，灰绿色，具白粉，叶的宽视植株年龄而异，长可达1.8cm，宽15～20cm，花葶上的叶，向上渐小，叶先端渐尖，末端具褐色、长1.5～2.5cm的硬尖刺，边缘有波状锯齿，齿端下弯曲成钩状。生长10余年，抽出高5～8m的花葶，上端具多分枝的狭长圆锥花序；花淡黄绿色，近漏斗状，花被管长约1.2cm，裂片6，长2.5～3cm；雄蕊6，着生于花被管喉部，花丝长约为花被片的2倍，丁字着药；子房下位，3室，每室具多个胚珠，柱头3裂。蒴果长圆形，长约5cm，径约3cm。一花序上可产生1500～3000个珠芽。花期6～8月。分布区域
Perennial large herb. The stem is short. The leaves are usually more than 30, arranged in a lotus-like pattern on the stem; the leaves are thick, spoon-shaped to lanceolate, gray-green, with white powder. The width of the leaves varies with the age of the plant, up to 1.8cm long and 15-20cm wide. The leaves on the flower stalk gradually become smaller upwards, with the tips gradually pointed, and with hard thorns at the ends, brown, 1.5-2.5cm long. The edges have wavy serrations, with the tips curved downwards like hooks. After more than 10 years of growth, a flower stalk 5-8m high emerges, with a narrow, elongated conical inflorescence with many branches at the top; the flowers are pale yellow-green, funnel-shaped, with a corolla tube about 1.2cm long, 6 lobes, 2.5-3cm long; 6 stamens, attached to the throat of the corolla tube, with filaments about twice as long as the corolla lobes, anthers cross-shaped; ovary inferior, 3 chambers, each with multiple ovules, stigma 3-lobed. The capsule is oblong, about 5cm long and 3cm in diameter. A single inflorescence can produce 1500-3000 gemmae. Flowering period is from June to August. Distribution area.

温暖地区多作庭园栽培，寒冷地区需温室盆栽或桶载，盆底要垫石块、瓦片以利排水。生长环境
In warm regions, it is mostly cultivated in gardens, while in cold regions, it needs to be grown in greenhouse pots or containers. The bottom of the pot should be lined with stones or tiles to facilitate drainage. Growth environment.

多为栽培，适于排水良好的砂质或粘质壤土栽培，耐干燥、贫瘠的土壤。
Mostly cultivated in well-drained sandy or loamy soil, tolerant of dry and poor soil conditions.