下果藤，中药名。为鼠李科植物咀签GouanialeptostachyaDC.的茎叶。分布于广西、云南。具有清热解毒，止痛，止血之功效。用于发热，烧烫伤，疮疡，胃痛，风湿痛，外伤出血。
Xia-guo-teng, name of Chinese Medicinal Material. Xia-guo-teng) is the stem and leaf of Gouania leptostachya DC., a plant in the Rhamnaceae family. It is distributed in Guangxi and Yunnan provinces. It has the functions of clearing heat, detoxifying, relieving pain, and stopping bleeding. It is used for fever, burns, scalds, sores, stomach pain, rheumatic pain, and external bleeding.

功效作用 功能
Efficacy, function.

清热解毒，止痛，止血。主治
Clearing heat, detoxifying, relieving pain, and stopping bleeding. Mainly used for治疗(mainly used for treating)

用于发热，烧烫伤，疮疡，胃痛，风湿痛，外伤出血。用法用量
Indications: fever, burns, scalds, sores, ulcers, stomach pain, rheumatic pain, and external bleeding. Dosage and Administration:

内服：煎汤，6-15g。外用：适量，鲜品捣敷。注意事项
Internal use: Decoction, 6-15g. External use: Appropriate amount, fresh product for poultice. Precautions.

本品有毒，不可过量。相关论述
This product is toxic and should not be taken in excess. Further discussion is needed.

《云南中草药》：“清热消炎。主治烧伤，烫伤。”临床应用 相关配伍
"Yunnan Herbal Medicine: 'Clears heat and reduces inflammation. Used to treat burns and scalds.' Clinical applications and relevant combinations."

治烧伤、烫伤：用下果藤鲜茎、叶捣烂，加适量冷开水浸泡，取浸出液涂搽创面。（《云南中草药》）加工炮制 采收加工
Treatment for burns and scalds: Crush the fresh stems and leaves of the Houttuynia cordata plant, soak them in a suitable amount of cold water, and apply the soaked liquid to the wound. (From "Yunnan Chinese Herbal Medicine") Processing and preparation: Harvest and process.

夏末采收，鲜用或切段晒干。植物学信息 植物种属
At the end of summer, the herbs are harvested fresh and used immediately or cut into sections and dried in the sun. Botanical information about the plant species.

鼠李科植物咀签。形态特征
The plant of the Rosaceae family is called Jusian. Morphological characteristics.

攀援灌木；当年生枝无毛或被疏短柔毛。叶互生，纸质，卵形或卵状矩圆形，长5-9cm，宽2.5-5cm，顶端渐尖或短渐尖，基部心形，边缘具圆齿状锯齿，上面深绿色，下面浅绿，无毛或沿脉有疏毛侧脉每边5-6条，上面不下陷。下面凸起基生侧脉外侧有3-5条次生侧脉，网脉不明显；叶柄长1-2.5cm，被疏或密短柔毛；托叶披针形，脱落。花杂性同株，5基数，单生、数个簇生和具短总花梗的聚伞花序排成腋生的聚伞总状和顶生的聚伞圆锥花序，长可达30cm，被疏或密短柔毛，花梗短，长约1mm，无毛或具疏毛，萼片卵状三角形，顶端渐尖，内面中肋不凸起；花瓣白色，倒卵圆形，基部具狭爪，与雄蕊等长；花盘五角形，每角延伸成1个舌状附属物；子房下位，藏于花盘内，3室，每室具1胚珠，花柱较短，3浅裂。蒴果，长9-10mm，直径10-12mm，具3翅，成熟时开裂成3个具近圆形翅的分核，总果梗长在4mm以下，果梗长1-3mm，无毛或有疏毛；种子倒卵形，长1mm，宽3mm，淡褐色，有光泽。花期8-9月，果期10-12月。分布区域
Climbing shrub; young branches are hairless or sparsely short-hairy. Leaves are opposite, papery, ovate or ovate-oblong, 5-9cm long, 2.5-5cm wide, gradually acute or shortly acuminate at the apex, cordate at the base, with rounded serrate margins. Upper surface is deep green, lower surface is light green, hairless or sparsely hairy along the veins, with 5-6 pairs of lateral veins on each side, not sunken on the upper surface. The lower surface has raised basal lateral veins with 3-5 secondary lateral veins on the outer side, and the reticulate veins are not prominent; petioles are 1-2.5cm long, sparsely or densely short-hairy; stipules are lanceolate, deciduous. Flowers are monoecious on the same plant, in 5-merous, solitary, clustered, or umbellate inflorescences with short peduncles, arranged in axillary umbellate cymes and terminal umbellate spikes, up to 30cm long, sparsely or densely short-hairy, with short flower stalks about 1mm long, hairless or sparsely hairy, sepals are ovate-triangular, gradually acute at the apex, with no prominent midrib on the inner surface; petals are white, inverted ovate, with narrow claws, equal in length to the stamens; disc is pentagonal, with each angle extending into a tongue-shaped appendage; ovary is inferior, hidden within the disc, 3-loculed, each locule with 1 ovule, the style is short, 3-lobed. Capsule is 9-10mm long, 10-12mm in diameter, with 3 wings, splitting into 3 partially rounded-winged mericarps when mature, the pedicel is less than 4mm long, 1-3mm long, hairless or sparsely hairy; seeds are inverted ovate, 1mm long, 3mm wide, pale brown, glossy. Flowering period is August to September, fruiting period is October to December. Distribution area.

分布于广西、云南。生长环境
Distributed in Guangxi and Yunnan. Growing environment.

生于低、中海拔疏林缘，常攀援于树上。
Born in the sparse forests at low to mid altitudes, it often climbs and clings to trees.