山海棠，中药材名。为秋海棠科植物云南秋海棠Begonia yunnanensis Levl.的全草或根、果实。具有活血祛瘀，行气止痛的功效。主治月经不调，痛经，白带过多，胃痛，小儿疝气，跌打损伤。
Shan-hai-tang, name of Chinese Medicinal Material. It refers to the whole plant, roots, and fruits of Begonia yunnanensis Levl., a plant of the family Begoniaceae. It has the functions of promoting blood circulation, removing blood stasis, promoting qi circulation, and relieving pain. It is mainly used to treat irregular menstruation, dysmenorrhea, excessive leukorrhea, stomach pain, pediatric hernia, and bruises.

功效作用 功能
Efficacy and Functions

活血祛瘀，行气止痛。主治
Promoting blood circulation to remove blood stasis, regulating qi to relieve pain. Used to treat...

月经不调，痛经，白带过多，胃痛，小儿疝气，跌打损伤。用法用量
Irregular menstruation, dysmenorrhea, excessive vaginal discharge, stomach pain, pediatric hernia, and bruises. Dosage and administration.

内服：煎汤，3-9g。外用：适量，鲜品捣敷。注意事项
Internal use: Decoction, 3-9g. External use: Apply an appropriate amount of fresh product as a poultice. Precautions.

孕妇及月经过多者慎用。相关论述
Pregnant women and those with excessive menstrual bleeding should use it with caution. Related discussions.

《云南中草药》：根、果实：活血祛瘀，行气止痛。根治更年期月经紊乱，吐血，骨折，小儿吐泻；果实治小儿血尿、疝气。临床应用 相关配伍
"Yunnan Traditional Chinese Medicine": Roots and fruits: Promote blood circulation, remove blood stasis, regulate qi, and relieve pain. The roots are used to treat menopausal menstrual disorders, vomiting blood, fractures, and children's vomiting and diarrhea; the fruits are used to treat children's hematuria and hernia. Clinical applications and related compatibility.

1、治胃酸多、胃痛：山海棠用酸菜水煨，内服。（《昆明民间常用草药》）2、治骨折：水八角根3-6g，水煎服；外用鲜品捣烂敷骨折处。（《云南中草药》）3、治小儿口腔炎：鲜一口血根适量，榨汁涂患处，每日涂2-3次。（《文山中草药》）加工炮制 采收加工

1. Treatment for excessive stomach acid and stomach pain: Boil mountain hawthorn in pickled vegetable water and take it orally. (From "Commonly Used Folk Herbs in Kunming")2. Treatment for bone fractures: Take 3-6g of water-fried water chestnut root orally; externally, apply mashed fresh water chestnut root to the fracture site. (From "Yunnan Chinese Herbal Medicine")3. Treatment for pediatric stomatitis: Take an appropriate amount of fresh bloodroot, extract the juice, and apply it to the affected area 2-3 times daily. (From "Wenshan Chinese Herbal Medicine") Processing and preparation: Harvest and process.

秋季采收全草和果实；根全年均可采，晒干或鲜用。植物学信息 植物种属
Harvest the whole plant and fruits in autumn; roots can be harvested all year round, and can be dried or used fresh. Botanical information: Plant species.

海棠科秋海棠属植物云南秋海棠。形态特征
The Yunnan crabapple, a plant belonging to the Rosaceae family and the Malus genus, has the following morphological characteristics:

多年生弱质草本，高15-35cm。根茎细长斜出，略有须根。茎细，无毛，不分枝或下部偶有分枝。单叶互生；叶柄长3-5cm，纤细；叶片膜质，长卵形，长3-6.5cm，基部宽2-3cm、先端渐尖或近尾尖、基部心脏形，稍歪斜，边缘有不整齐的钝牙齿，上下两面绿色，无毛。总状聚伞药序，腋生，或顶生，花梗长1-1.5cm，药小，粉红色。蒴果具3翅，其中一翅最大，三角形，无毛。花期6-7月，果期8-9月。分布区域
Perennial herbaceous plant with weak constitution, 15-35cm tall. Rhizomes are slender and oblique, with slight fibrous roots. Stems are slender, hairless, unbranched or occasionally branched in the lower part. Leaves are alternate; petioles are 3-5cm long, slender; leaf blades are membranous, oblong-ovate, 3-6.5cm long, 2-3cm wide at the base, gradually tapering to a pointed or nearly tail-like tip, heart-shaped at the base, slightly oblique, with irregular blunt teeth along the margin, green on both sides, and hairless. Inflorescences are umbels, axillary or terminal, with pedicels 1-1.5cm long, small pink flowers. Capsules have 3 wings, with one wing being the largest, triangular, and hairless. Flowering occurs from June to July, and fruiting occurs from August to September. Distribution area.

分布于广西、四川、贵州、云南等地。生长环境
Distributed in Guangxi, Sichuan, Guizhou, Yunnan, and other regions. Growing environment.

生于林下潮湿石岩上。
Born in the damp rocky terrain under the forest.