面根藤，中药名。为双子叶植物药旋花科植物打碗花（CalystegiahederaceaWall.）的全草或根。夏、秋季采收，洗净，鲜用或晒干。从平原至高海拔的地方都有生长，常见于农田、荒地、路旁。全国大部分地区有分布。味甘、微苦、性平，无毒，归肝、肾经，具有健脾、利湿、调经的功效。主治脾胃虚弱、消化不良、小儿吐乳、疳积、五淋、带下、月经不调等病证。
Mian-gen-teng, name of Chinese Medicinal Material. the whole herb or root of the Convolvulus arvensis L., a plant of the family Convolvulaceae, is collected in summer and autumn, washed clean, and used fresh or dried. It grows from the plains to high altitudes, commonly found in farmland, wasteland, and roadsides. It is distributed in most parts of the country. It tastes sweet, slightly bitter, and has a neutral nature, non-toxic, and enters the liver and kidney meridians. It has the functions of invigorating the spleen, promoting diuresis, and regulating menstruation. It is mainly used for the treatment of weak spleen and stomach, indigestion, infantile vomiting, malnutrition, enuresis, leukorrhea, and irregular menstruation.

功效作用 功能
Efficacy, function.

健脾，利湿，调经。主治
Tonify the spleen, eliminate dampness, regulate menstruation. Used to treat...

脾胃虚弱，消化不良，小儿吐乳，疳积，五淋，带下，月经不调等病证。用法用量
Spleen and stomach weakness, poor digestion, infantile vomiting, malnutrition, enuresis, leukorrhea, and irregular menstruation are all symptoms that can be treated. Dosage and administration should be determined accordingly.

内服：煎汤，10～30克。临床应用 相关配伍
Internal administration: Decoction, 10-30 grams. Clinical applications and relevant compatibility.

1、治小儿脾弱气虚：面根藤根、鸡屎藤做糕服。2、治肾虚耳聋：鲜面根藤根、响铃草各四两。炖猪耳朵服。加工炮制 采收加工

1. Treating weak spleen and qi deficiency in children: Use the roots of Face Root Vine and Chicken Shit Vine to make cakes for consumption.2. Treating kidney deficiency and deafness: Use four liang each of fresh Face Root Vine and Ringing Bell Herb. Stew pig ears for consumption. Processing and preparation: Harvest and process.

夏、秋季采收，洗净，鲜用或晒干。药材鉴别 药材性状
Harvest in summer or autumn, wash and clean, use fresh or sun-dry. Identification of medicinal materials and their properties.

药材性状：性状鉴别根茎细长，直径约1mm，表面灰黄色，有细纵皱纹。茎细长，常盘曲扭卷，表面灰棕色或灰褐色，有纵向棱线而扭曲；质脆，易折断。叶互生，有长柄，叶片淡绿色，多皱缩破碎，完整叶片展平后呈戟形。气微味淡。植物学信息 形态特征
Medicinal material characteristics: The roots and rhizomes are slender, with a diameter of about 1mm, and the surface is grayish-yellow with fine longitudinal wrinkles. The stems are slender, often twisted and curled, with a gray-brown or grayish-brown surface, longitudinal ridges, and twists; they are brittle and easy to break. The leaves are alternate, with long petioles, light green in color, often wrinkled and broken, and the intact leaves are lanceolate when spread out. The plant has a faint odor. Botanical information on morphological characteristics.

一年生草木，高8-40cm。具细长白色的根。植株通常矮小，蔓性，光滑，茎自基部分枝，平卧，有细棱。单叶互生；叶柄长1-5cm；基部叶片长圆形，长2-5cm，宽1-2.5cm，先端圆，基部戟形，上部叶片3裂，中裂片长圆形或长圆状披针形，侧裂片近三角形，全缘或2-3裂，叶基心形或戟形。花单一腋生；花梗长于叶柄；苞片宽卵形；萼片5，长圆形；花冠淡紫色或淡红色，钟状，冠檐近截形或微裂；雄蕊5，花丝基部扩大，贴生于花冠管基部，被小鳞毛；子房卵球形，柱头2裂，裂片长圆形，扁平。蒴果卵球形，外包宿存萼片。种子黑褐色，表面有小疣。花期夏季。分布区域
It is an annual herb, 8-40cm tall, with slender white roots. The plant is usually small, creeping, smooth, with stems branching from the base, prostrate, and with fine edges. The leaves are alternate; petioles are 1-5cm long; basal leaves are oblong, 2-5cm long, 1-2.5cm wide, rounded at the tip, lanceolate at the base, upper leaves are 3-lobed, with the middle lobe being oblong or lanceolate, and the lateral lobes nearly triangular, entire or 2-3 lobed, with a cordate or lanceolate leaf base. Flowers solitary in the axils; peduncles longer than the petioles; bracts broadly ovate; sepals 5, oblong; corolla pale purple or pale pink, campanulate, with the corolla lobes nearly truncate or slightly lobed; stamens 5, with enlarged bases, adnate to the base of the corolla tube, covered with small scale-like hairs; ovary ovoid, with a 2-lobed stigma, lobes oblong and flat. Capsule ovoid, enclosed by persistent sepals. Seeds blackish-brown, with small warts on the surface. Flowering period is in summer. Distribution area.

全国大部分地区有分布。生长环境
Distributed in most parts of the country. Growing environment.

从平原至高海拔的地方都有生长，常见于农田、荒地、路旁。
It grows from the plains to high altitudes, commonly found in farmland, wasteland, and along roadsides.