铜苋菜，中药名。为龙胆科莕菜属植物金银莲花Nymphoidesindica（L.)O.Kuntze.的全草。植物金银莲花，分布于我国东北、华东、华南以及河北、云南，广布于世界的热带至温带。具有清热利尿，生津养胃之功效。主治小便短赤不利，口干，口渴。
Tong-xian-cai, name of Chinese Medicinal Material. the whole plant of Nymphoides indica (L.) O. Kuntze, a plant of the family Gentianaceae. The plant is distributed in Northeast China, East China, South China, as well as Hebei and Yunnan, and is widely distributed in tropical to temperate regions worldwide. It has the functions of clearing heat, promoting diuresis, nourishing the stomach, and generating fluids. It is used to treat conditions such as difficult and painful urination, dry mouth, and thirst.

功效作用 功能
The efficacy and functions.

清热利尿，生津养胃。主治
Clearing heat, promoting diuresis, nourishing yin, and tonifying the stomach.主治

小便短赤不利，口干，口渴。用法用量
Short and red urine, dry mouth, and thirst. Dosage and administration.

内服：煎汤，10～15g。加工炮制 采收加工
Internal administration: Decoction, 10-15g. Processed and prepared after harvesting.

夏秋季采收，洗净，晒干。药材鉴别 药材性状
Harvest in summer and autumn, wash and dry in the sun. Identify the medicinal herbs and their properties.

全草皱缩，光滑无毛。茎圆柱形，不分枝，形如叶柄，先端单生一叶。叶片近圆形，长3～11㎝，基部深心形，全缘；革质。气微，味辛。植物学信息 植物种属
The whole plant is wrinkled and smooth without hairs. The stem is cylindrical, unbranched, resembling a leaf stalk, with a single leaf at the tip. The leaf blade is nearly circular, 3-11 cm long, with a deeply cordate base and entire margin; leathery. It has a slight odor and a pungent taste. Botanical information: plant species.

龙胆科莕菜属植物金银莲花。形态特征
The plant belongs to the Gentianaceae family and the Swertia genus, and it is called the "golden silver lotus flower". Here are its morphological characteristics.

多年生水生草本。茎圆柱形，不分枝，形似叶柄，顶生单叶。叶飘浮，近革质，宽卵圆形或近圆形，长3～18厘米，下面密生腺体，基部心形，全缘，具不甚明显的掌状叶脉，叶柄短，圆柱形，长1～2厘米。花多数，簇生节上，5数；花梗细弱，圆柱形，不等长，长3～5厘米；花萼长3～6毫米，分裂至近基部，裂片长椭圆形至披针形，先端钝，脉不明显；花冠白色，基部黄色，长7～12毫米，直径6～8毫米，分裂至近基部，冠筒短，具5束长柔毛，裂片卵状椭圆形，先端钝，腹面密生流苏状长柔毛；雄蕊着生于冠筒上，整齐，花丝短，扁平，线形，长1.5～1.7毫米，花药箭形，长2～2.2毫米；子房无柄，圆锥形，长2毫米，花柱粗壮，圆柱形，长约2.5毫米，柱头膨大，2裂，裂片三角形。蒴果椭圆形，长3～5毫米，不开裂；种子臌胀，褐色，近球形，长1.2～1.5毫米，光滑。染色体2n=18。花果期8～10月。分布区域
Perennial aquatic herb. The stem is cylindrical, unbranched, resembling a petiole, with a single terminal leaf. The leaves float, are leathery, broadly ovate or nearly circular, 3-18 cm long, densely glandular beneath, heart-shaped at the base, with entire margins, and indistinct palmate veins. The petiole is short, cylindrical, 1-2 cm long. The flowers are numerous, clustered on the nodes, with 5 parts; the pedicels are slender, cylindrical, unequal in length, 3-5 cm long; the calyx is 3-6 mm long, split nearly to the base, with elliptic to lanceolate lobes, blunt at the apex, and inconspicuous veins; the corolla is white with a yellow base, 7-12 mm long, 6-8 mm in diameter, split nearly to the base, with a short corolla tube, 5 bundles of long soft hairs, and ovate-lanceolate lobes, blunt at the apex, and densely covered with tufted long soft hairs on the ventral surface; the stamens are inserted on the corolla tube, uniform, with short, flat, linear filaments, 1.5-1.7 mm long, arrow-shaped anthers, 2-2.2 mm long; the ovary is sessile, conical, 2 mm long, the style is stout, cylindrical, about 2.5 mm long, with a swollen, 2-lobed stigma, the lobes triangular. The capsule is ellipsoidal, 3-5 mm long, not dehiscent; the seeds are swollen, brown, nearly spherical, 1.2-1.5 mm long, and smooth. The chromosome number is 2n=18. The flowering and fruiting period is from August to October. Distributed in [specific region].

分布于我国东北、华东、华南以及河北、云南，广布于世界的热带至温带。生长环境
Distributed in the northeast, east, and south of China, as well as in Hebei and Yunnan, and widely distributed in tropical to temperate regions around the world. Growing environment

生于海拔50～1530米。
Born at an altitude of 50 to 1530 meters.