柠檬叶，中药名。为芸香科植物黎檬CitruslimoniaOsbeck或柠檬Citruslimon(L.)Burm.f.的叶。黎檬原产亚洲，现我国南部多有栽培；柠檬广东有栽培。具有化痰止咳，理气和胃，止泻之功效。常用于咳喘痰多，气滞腹胀，泄泻。
Lemon leaves, name of Chinese Medicinal Material. re the leaves of the Rutaceae plant Citrus limonia Osbeck or Citrus limon (L.) Burm.f. Lemon is originally from Asia and is now widely cultivated in the southern part of China, while Citrus limon is cultivated in Guangdong. It has the functions of resolving phlegm, relieving cough, regulating qi, harmonizing the stomach, and stopping diarrhea. It is often used for cough with excessive phlegm, abdominal distention due to qi stagnation, and diarrhea.

功效作用 Efficacy and Functions

化痰止咳，理气和胃，止泻。
Resolve phlegm, stop coughing, regulate qi and harmonize the stomach, and stop diarrhea.

主治 Indications

用于咳喘痰多，气滞腹胀，泄泻。
Used for cough and asthma with excessive phlegm, qi stagnation with abdominal distension, and diarrhea.

用法用量 Dosage and Administration

内服：煎汤，9-15g。
Internal use: Decoction, 9-15g.

相关论述 Relevant Discussion

1、《生草药性备要》：“味辛，性温。”

1. "Taste pungent, nature warm." - Sheng Cao Yao Xing Bei Yao (Essentials of Materia Medica).

2、《本草求原》：“辛、甘，温。”
2. "Pungent, sweet, warm." - Ben Cao Qiu Yuan (Seeking the Origins of Materia Medica).

3、《本草药性备要》：“退热，止咳化痰，开胃。切鱼生用些，辟腥甚佳。”
3. "Clears heat, stops cough, transforms phlegm, and stimulates appetite. When cutting fish, using a bit of it raw can effectively remove the fishy smell." - Ben Cao Yao Xing Bei Yao (Essentials of Materia Medica).

4、《本草求原》：“止咳，消痰，顺气。”
4. "Stops cough, resolves phlegm, and regulates qi." - Ben Cao Qiu Yuan (Seeking the Origins of Materia Medica).

加工炮制 Processing and Preparation

采收加工：全年均可采，晒干。
Harvesting and processing: can be harvested all year round, then dried in the sun.

植物学信息 Botanical Information

植物种属：芸香科植物黎檬。
The plant species is Citrus limonia, a member of the Rutaceae family.

形态特征 Morphological Characteristics

黎檬：又名里木树、柠檬、广东黎檬。常绿灌木，具硬刺。叶互生，叶柄短，有狭翼，顶端有节。叶片小，长圆形至椭圆状长圆形，先端短锐尖或钝，边缘有钝锯齿。花单生或簇生于叶腋；萼5裂，杯状；花瓣5，条状长圆形，下部渐狭，外面淡紫色，内面白色；雄蕊20个以上；子房上部渐狭，8-10室，花柱大，脱落，每室有胚珠数个。柑果近圆形，先端有不发育的乳头状突起，长约4.5cm，宽约5cm，黄色至朱红色，皮薄易剥，且有粘土味，瓢囊8-10瓣，味极酸。种子3-4颗，卵形。花期春季。
Lime: also known as Limu tree, Canton lime. An evergreen shrub with hard thorns. Leaves are alternate, with short petioles that have narrow wings and joints at the tips. Leaf blades are small, oblong to elliptic-oblong, with short acute or obtuse tips, and blunt serrations on the margins. Flowers are solitary or clustered in leaf axils; calyx is 5-lobed and cup-shaped; petals are 5, linear-oblong, narrowing at the base, pale purple outside and white inside; more than 20 stamens; ovary upper part gradually tapers into 8–10 chambers, with a large deciduous style, each chamber containing several ovules. Fruit is nearly round, with an undeveloped nipple-like projection at the apex, about 4.5 cm long and 5 cm wide, yellow to crimson, with thin, easily peelable skin and a slightly clay-like taste, pulp divided into 8–10 segments, extremely sour. Seeds 3–4, ovoid. Flowering period in spring.

柠檬：又名洋柠檬。与黎檬的主要区别为：本种果实为椭圆形。
Lemon: also known as Western lemon. The main difference from lime is that this species has an elliptical fruit.

生长环境 Growing Environment

黎檬：原产亚洲。现我国南部多有栽培。柠檬：广东有栽培。
Lime: Originally from Asia. Now widely cultivated in southern China. Lemon: Cultivated in Guangdong.