铜锤草根，中药名。为酢浆草科酢浆草属植物红花酢浆草OxaliscorymbosaDC.的根。植物红花酢浆草，分布于河北、陕西、华东、华中、华南、四川和云南等地。具有清热，平肝，定惊之功效。主治小儿肝热，惊风。
Tong-chui-cao-gen, name of Chinese Medicinal Material. Root of Oxalis corymbosa DC.), a plant belonging to the Oxalidaceae family and Oxalis genus. The plant is distributed in Hebei, Shaanxi, East China, Central China, South China, Sichuan, Yunnan, and other places. It has the functions of clearing heat, calming the liver, and calming the mind. It is mainly used to treat pediatric liver heat and convulsions.

功效作用 Efficacy and Functions

清热，平肝，定惊。
Clearing heat, soothing the liver, and calming the mind.

主治 Indications

小儿肝热，惊风。
Pediatric liver heat and wind disturbance.

用法用量 Dosage and Administration

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

相关论述 Relevant Discussion

《贵州草药》：“镇惊。”
"Guizhou Herbal Medicine": "Calms the shen (spirit)."

临床应用 Clinical Applications

1. 治小儿急惊风，大老鸦酸根15g，鱼鳅串、铁灯草各9g。煎水服。（《贵州民间药物》）
   To treat infantile convulsions, use 15g of the roots of Da Laoya Suan, and 9g each of Yuqiu Chuan and Tie Deng Cao. Decoct in water and administer orally. (From Guizhou Folk Medicine)

2. 治小儿肝热，骨蒸，（红花酢浆草）鲜根15g。水煎服。（福建晋江《中草药手册》）
   To treat pediatric liver heat and bone steaming, use 15g of fresh roots of Red-flowered Wood Sorrel (Oxalis corymbosa). Prepare a decoction and administer orally. (From Fujian Jinjiang Materia Medica Handbook)

植物学信息 Botanical Information

植物种属：酢浆草科酢浆草属植物红花酢浆草。
The plant species is Oxalis corymbosa, belonging to the Oxalidaceae family and the genus Oxalis.

形态特征 Morphological Characteristics

多年生直立草本。无地上茎，地下部分有球状鳞茎，外层鳞片膜质，褐色，背具3条肋状纵脉，被长缘毛，内层鳞片呈三角形，无毛。叶基生；叶柄长5～30厘米或更长，被毛；小叶3，扁圆状倒心形，长1～4厘米，宽1.5～6厘米，顶端凹入，两侧角圆形，基部宽楔形，表面绿色，被毛或近无毛；背面浅绿色，通常两面或有时仅边缘有干后呈棕黑色的小腺体，背面尤甚并被疏毛；托叶长圆形，顶部狭尖，与叶柄基部合生。总花梗基生，二歧聚伞花序，通常排列成伞形花序式，总花梗长10～40厘米或更长，被毛；花梗、苞片、萼片均被毛；花梗长5～25毫米，每花梗有披针形干膜质苞片2枚；萼片5，披针形，长约4～7毫米，先端有暗红色长圆形的小腺体2枚，顶部腹面被疏柔毛；花瓣5，倒心形，长1.5～2厘米，为萼长的2～4倍，淡紫色至紫红色，基部颜色较深；雄蕊10枚，长的5枚超出花柱，另5枚长至子房中部，花丝被长柔毛；子房5室，花柱5，被锈色长柔毛，柱头浅2裂。花、果期3～12月。
Perennial erect herb with no aerial stem. The underground part has a spherical bulb; outer scales are membranous, brown, with 3 rib-like longitudinal veins on the back, margin hairy; inner scales are triangular and glabrous. Leaves are basal; petiole 5–30 cm or longer, pubescent; leaflets 3, broadly ovate to inversely heart-shaped, 1–4 cm long, 1.5–6 cm wide, apex concave, lateral angles rounded, base broadly cuneate; upper surface green, pubescent or nearly glabrous; lower surface pale green, usually with small dark brown-black glands on both surfaces or sometimes only on the margins, more prominent on the lower surface and sparsely hairy; stipules oblong, narrowly acute at the apex, fused with the base of the petiole. Inflorescence is basal, with dichasial cymes usually arranged in an umbel-like pattern; peduncle 10–40 cm or longer, pubescent; pedicels, bracts, and sepals all pubescent; pedicels 5–25 mm long, each bearing 2 lanceolate, dry, membranous bracts; sepals 5, lanceolate, about 4–7 mm long, with two dark red, elongated oval glands at the apex, sparsely pubescent on the ventral surface at the tip; petals 5, inversely heart-shaped, 1.5–2 cm long, 2–4 times longer than the sepals, pale purple to purple-red, darker at the base; stamens 10, 5 longer than the style, 5 reaching the middle of the ovary, filaments pubescent; ovary 5-locular, styles 5, rusty-pubescent, stigma shallowly 2-lobed. Flowering and fruiting occurs from March to December.

分布区域 Distribution Area

分布于河北、陕西、华东、华中、华南、四川和云南等地。
Distributed in Hebei, Shaanxi, East China, Central China, South China, Sichuan, Yunnan, and other regions.

生长环境 Growing Environment

生于低海拔的山地、路旁、荒地或水田中。
Found in low-altitude mountainous areas, roadsides, wastelands, or paddy fields.