刀豆根，中药名。为豆科植物刀豆Canavaliagladiata（Jacq.）DC.的根。具有祛风，活血，痛经，止痛的功效。主治头风，跌打损伤，风湿腰痛，心痛，牙痛，久痢，疝气，经闭。
Dao-dou-gen, name of Chinese Medicinal Material. 刀豆根). It is the root of the leguminous plant Canavalia gladiata (Jacq.) DC. It has the effects of dispelling wind, promoting blood circulation, relieving menstrual pain, and alleviating pain. It is mainly used to treat headache, injuries from falls or blows, rheumatic back pain, heart pain, toothache, chronic dysentery, hernia, and amenorrhea.

功效作用 功能
Efficacy and Functions

祛风，活血，痛经，止痛。主治
Dispelling wind, promoting blood circulation, relieving menstrual pain, and alleviating pain. Main treatment.

头风，跌打损伤，风湿腰痛，心痛，牙痛，久痢，疝气，经闭。用法用量
Headache, contusions and sprains, lumbar pain due to rheumatism, chest pain, toothache, chronic diarrhea, hernia, and amenorrhea. Dosage and administration.

内服：煎汤，9-15g；外用：捣敷。注意事项
Internal use: Decoction, 9-15g; External use: Mashed for poultice. Precautions.

《本草用法研究》：“胃火盛者忌用。”相关论述
"Research on the Usage of Materia Medica": "Those with excessive stomach fire should avoid using it." This is the related statement.

1、《医林纂要》：“止肾气攻心心痛。能通冲脉而济水火，交心肾。”2、《纲目拾遗》：“治头风。”3、《分类草药性》：“治跌打损伤，膀胱疝气。”临床应用 相关配伍

1. "Yi Lin Zuan Yao": "Suppress kidney qi to relieve heart pain. It can regulate the Chong meridian to balance water and fire, and harmonize the heart and kidneys."2. "Gang Mu Shi Yi": "Treatment for headache."3. "Classification of Medicinal Properties": "Treatment for bruises, injuries, and bladder prolapse." Clinical applications and relevant combinations.

1、治头风：刀豆根五钱，酒煎服。（《医方集听》）2、治风湿腰痛：刀豆根一两，酒水各半煎服。（《江西草药》）3、治跌打损伤：刀豆根捣烂，酒蒸敷患处。（《陆川本草》）加工炮制 采收加工

1. Treatment for headache: Take 15 grams of knife bean roots, decoct in wine and take orally. (From "Yi Fang Ji Ting")2. Treatment for lumbar pain due to rheumatism: Take 30 grams of knife bean roots, decoct in a mixture of wine and water and take orally. (From "Jiangxi Herbal Medicine")3. Treatment for bruises and injuries: Mash knife bean roots into a paste, steam with wine and apply to the affected area. (From "Lu Chuan Materia Medica") Processing and preparation: Harvesting and processing.

9-10月采挖，晒干或鲜用。植物学信息 植物种属
Harvesting is done in September to October, and the herbs can be dried in the sun or used fresh. Botanical information: plant species.

豆科刀豆属刀豆。形态特征
The genus of the Fabaceae family is the Vigna genus. Characteristics include:

一年生缠绕草质藤本，长达3m。茎无毛。三出复叶；叶枘长7-15cm；顶生小叶宽卵形，长8-20cm，宽5-16cm，先端渐尖或急尖，基部阔楔形，侧生小叶偏斜，基部圆形；具短柄；托叶细小。总状花序腋生，花疏，有短梗；苞片卵形，早落；花萼钟状，萼管长约1.5cm，二唇形，上萼2裂片大而长，下萼3裂片小而不明显；花冠蝶形，淡红色或淡紫色，长3-4cm，旗瓣圆形，翼瓣较短，约与龙骨瓣等长，龙骨瓣弯曲；雄蕊10，连合为单体，对着旗瓣的1枚基部稍离生，花药同型；子房具短柄，被毛。荚果大而扁，长10-30cm，直径3-5cm，被伏生短细毛，边缘有隆脊，先端弯曲成钩状；种子10-14颗，长约3.5cm，宽约2cm，厚达1.5cm，种皮粉红色或红色、种脐约占种子全长的3/4，扁平而光滑。花期6-7月，果期8-10月。分布区域
A perennial twining herbaceous vine, reaching up to 3 meters in length. The stem is hairless. It has trifoliate compound leaves; leaf rachis is 7-15cm long; terminal leaflets are broadly ovate, 8-20cm long and 5-16cm wide, gradually tapering or abruptly pointed at the tip, broadly cuneate at the base, with oblique lateral leaflets that are rounded at the base; short petiolules; small stipules. The axillary racemes are sparse, with short pedicels; bracts are ovate, early falling off; calyx is campanulate, calyx tube about 1.5cm long, bilabiate, with 2 large and long upper lobes and 3 small and inconspicuous lower lobes; corolla is papilionaceous, pale red or pale purple, 3-4cm long, standard petal is round, wings are shorter, about the same length as the keel, which is curved; stamens are 10, connate into a monad, with one slightly distant from the base of the standard petal, anthers of the same type; ovary with a short stalk, hairy. The pod is large and flat, 10-30cm long, 3-5cm in diameter, covered with appressed short fine hairs, with raised ridges on the edges, and hooked at the tip; seeds are 10-14, about 3.5cm long, 2cm wide, and 1.5cm thick, with pink or red seed coat, and the hilum occupies about 3/4 of the seed length, flat and smooth. Flowering period is June to July, fruiting period is August to October. Distribution area.

北京地区及长江以南地区有栽培。原产美洲热带地区。生长见习
It is cultivated in the Beijing area and regions south of the Yangtze River. It is originally from the tropical regions of the Americas.

喜温暖，不耐寒霜。对土壤要求不严，但以排水良好而疏松的砂壤土栽培为好。繁殖方式
Prefers warmth and is not tolerant to cold frost. It does not have strict requirements for soil, but it is best cultivated in well-drained and loose sandy loam soil. The propagation method is.

用种子繁殖。栽培技术
Propagation by seeds. Cultivation techniques.

种子繁殖：于4月上旬清明前后播种，由于种皮坚硬，吸水慢，要先用水浸泡一昼夜后再播。按行距60cm，窝距45cm，深10cm挖窝，每窝播种子3-4颗，施猪粪水后，盖火灰及细土约厚4cm。不能使用人粪，因易烂种烂根。病虫防治
Seed propagation: Seeds should be sown around early April, before the Qingming Festival. Due to the hard seed coat and slow water absorption, the seeds should be soaked in water for a day and night before sowing. Dig holes 10cm deep with row spacing of 60cm and hole spacing of 45cm. Sow 3-4 seeds per hole, apply pig manure water, and cover with a layer of about 4cm of wood ash and fine soil. Do not use human feces, as it may cause seed and root rot. Disease and pest control should also be implemented.

虫害有斑蝥，咬食花果，可在早晨露水未干不能飞动时，带手套捕捉，用开水烫死，晒干供药用。
Pests such as the spotted moth can bite and eat flowers and fruits. They can be captured in the morning when the dew is not yet dry and they cannot fly. Wear gloves to catch them, scald them with boiling water, dry them in the sun, and use them for medicinal purposes.