（音扁，《别录》中品）
【释名】沿篱豆（俗）、蛾眉豆。
时珍曰∶ ，本作扁，荚形扁也。沿篱，蔓延也。蛾眉，象豆脊白路之形也。
【集解】弘景曰∶ 豆人家种之于篱垣，其荚蒸食甚美。
颂曰∶蔓延而上，大叶细花，花有紫、白二色，荚生花下。其实有黑、白二种，白者温
而黑者小冷，入药用白者。黑者名鹊豆，盖以其黑间有白道，如鹊羽也。
时珍曰∶扁豆，二月下种，蔓生延缠。叶大如杯，团而有尖。其花状如小蛾，有翅尾形
。其荚凡十余样，或长或团，或如龙爪、虎爪，或如猪耳、刀镰，种种不同，皆累累成枝。
白露后实更繁衍，嫩时可充蔬食茶料，老则收子煮食。子有黑、白、赤、斑四色。一种荚硬
不堪食。惟豆子粗圆而色白者可入药，本草不分别，亦缺文也。
白扁豆
【修治】时珍曰∶凡用取硬壳扁豆子，连皮炒熟，入药。亦有水浸去皮及生用者，从本
方。
【气味】甘，微温，无毒。
诜曰∶微寒，患冷人勿食。
弘景曰∶患寒热者不可食。
【主治】和中，下气（《别录》）。补五脏，主呕逆。久服头不白（孟诜）。疗霍乱吐利不
止，研末和醋服之（同上）。行风气，治女子带下，解酒毒、河豚鱼毒（苏颂）。解一切草木
毒，生嚼及煮汁饮，取效（甄权）。止泄痢，消暑，暖脾胃，除湿热，止消渴（时珍）。
【发明】时珍曰∶硬壳白扁豆，其子充实，白而微黄，其气腥香，其性温平，得乎中和
，脾之谷也。入太阴气分，通利三焦，能化清降浊，故专治中宫之病，消暑除湿而解毒也。
其软壳及黑鹊色者，其性微凉，但可供食，亦调脾胃。
【附方】新九。
霍乱吐利∶扁豆、香薷各一升，水六升，煮二升，分服。（《千金》）。
霍乱转筋∶白扁豆为末，醋和服。（《普济方》）。
消渴饮水∶金豆丸∶用白扁豆浸去皮，为末，以天花粉汁同蜜和丸梧子大，金箔为衣。
每
赤白带下∶白扁豆炒为末，用米饮，每服二钱。
毒药堕胎∶女人服草药堕胎腹痛者。生白扁豆去皮，为末，米饮服方寸匕，浓煎汁饮，
亦可丸服。若胎气已伤未堕者，或口噤手强，自汗头低，似乎中风，九死一生。医多不识，
作
中砒霜毒∶白扁豆生研，水绞汁饮。（并《永类方》）。
六畜肉毒∶白扁豆烧存性研，冷水服之，良。（《事林广记》）。
诸鸟肉毒∶生扁豆末，冷水服之。（同上）。
恶疮痂痒作痛∶以扁豆捣封，痂落即愈。（《肘后》）。
花
【主治】女子赤白带下，干末，米饮服之（苏颂）。焙研服，治崩带。作馄饨食，治泄
痢。擂水饮，解中一切药毒垂死。功同扁豆（时珍）。
【附方】新二。
血崩不止∶白扁豆花焙干，为末。每服二钱，空心炒米煮饮，入盐少许，调下即效。（
《奇效良方》）。
一切泄痢∶白扁豆花正开者，择净勿洗，以滚汤瀹过，和小猪脊KT 肉一条，葱一根，
胡椒七粒，酱汁拌匀，就以瀹豆花汁和面，包作小馄饨，炙熟食之。（《必用食治方》）。
叶
【主治】霍乱吐下不止（《别录》）。吐利后转筋，生捣一把，入少酢绞汁服，立瘥。醋
炙研服，治瘕疾（孟诜）。杵敷蛇咬（大明）。
藤
【主治】霍乱，同芦 、人参、仓米等分，煎服（时珍）。
(Pronounced "Bian", recorded in the Middle Category of *Bie Lu*)
**[Names]** Yanli Dou (common name), Emmei Dou.
Li Shizhen said: It was originally written as "Bian" because the pod shape is flat. "Yanli" refers to its creeping growth habit. "Emmei" describes the shape of the white ridge on the bean, resembling a moth's eyebrow.
**[Collection and Explanation]** Tao Hongjing said: People plant Bian Dou along fences and walls; its pods are very delicious when steamed.
Su Song said: The vines creep upwards, with large leaves and small flowers. The flowers are either purple or white, and the pods grow beneath the flowers. There are two kinds of fruits: black and white. The white ones are warm in nature, while the black ones are slightly cold. The white variety is used for medicinal purposes. The black one is called Que Dou (Magpie Bean), likely because it has white streaks amidst the black color, resembling magpie feathers.
Li Shizhen said: Bian Dou is sown in February and grows as a climbing vine. The leaves are as large as a cup, round with pointed tips. The flowers resemble small moths, with wing-like tails. There are over ten varieties of pods, varying in length and shape—some like dragon claws, tiger claws, pig ears, or sickles—all growing in clusters along the branches. After the White Dew solar term, the fruits become more abundant. When tender, they can be eaten as vegetables or tea ingredients; when mature, the seeds are harvested and boiled. The seeds come in four colors: black, white, red, and spotted. One variety has hard pods that are inedible. Only the coarse, round, white beans are suitable for medicinal use. The Materia Medica does not distinguish between them, which is an omission in the text.
**White Flat Bean (Bai Bian Dou)**
**[Processing]** Li Shizhen said: For medicinal use, select the seeds from hard-shelled flat beans, stir-fry them with the skin until cooked, and then use them. Some methods involve soaking in water to remove the skin or using them raw, depending on the specific prescription.
**[Flavor and Properties]** Sweet, slightly warm, non-toxic.
Meng Shen said: Slightly cold; those with cold syndromes should avoid eating it.
Tao Hongjing said: Those suffering from alternating chills and fever should not eat it.
**[Indications]** Harmonizes the middle jiao, directs qi downward (*Bie Lu*). Tonifies the five zang organs, treats vomiting and reflux. Long-term consumption prevents graying of the hair (Meng Shen). Treats persistent vomiting and diarrhea caused by Huoluan (cholera-like syndrome); grind into powder and take with vinegar (ibid.). Disperses wind-qi, treats leukorrhea in women, resolves alcohol toxicity and pufferfish poisoning (Su Song). Resolves all vegetable and herb toxins; chew raw or drink the decoction for efficacy (Zhen Quan). Stops dysentery, clears summerheat, warms the spleen and stomach, removes dampness-heat, and stops polydipsia (Li Shizhen).
**[Elucidation]** Li Shizhen said: The hard-shelled white flat bean has plump seeds, white with a slight yellow tint, smelling fishy and fragrant. Its nature is warm and neutral, attaining the balance of the middle, making it the grain of the spleen. It enters the Taiyin qi level, unblocks and benefits the Sanjiao, transforms clear yang and descends turbid yin. Therefore, it specifically treats diseases of the Middle Jiao, resolving summerheat, removing dampness, and detoxifying. The soft-shelled and black-magpie-colored beans have a slightly cool nature and are primarily for food, though they also regulate the spleen and stomach.
**[Prescriptions]** Nine new prescriptions.
Huoluan with vomiting and diarrhea: Bian Dou and Xiang Ru (Moslae Herba) each 1 sheng, water 6 sheng, boil to obtain 2 sheng, divide and take (from *Qian Jin Fang*).
Huoluan with muscle cramps: Grind Bai Bian Dou into powder, mix with vinegar and take (from *Pu Ji Fang*).
Polydipsia drinking water: Jin Dou Wan (Golden Bean Pill): Soak Bai Bian Dou, remove skin, grind into powder, mix with juice of Tian Hua Fen (Trichosanthis Radix) and honey to make pills the size of wu zi (wu berry), coat with gold foil. Take ... [text incomplete].
Red and white leukorrhea: Stir-fry Bai Bian Dou, grind into powder, take 2 qian with rice water.
Poisonous abortion: For women suffering abdominal pain after taking herbs to induce abortion. Use raw Bai Bian Dou, remove skin, grind into powder, take 1 cun bi (square inch spoonful) with rice water, or drink concentrated decoction, or form into pills. If fetal qi is damaged but not yet aborted, or if there is jaw stiffness, limb rigidity, spontaneous sweating, head drooping, resembling stroke, with only one chance in nine of survival. Physicians often fail to recognize this, mistaking it for ... [text incomplete].
Arsenic poisoning: Grind raw Bai Bian Dou, squeeze out juice with water and drink (both from *Yong Lei Fang*).
Toxicity from meat of six domestic animals: Burn Bai Bian Dou until carbonized but retaining properties (cun xing), grind into powder, take with cold water; effective (from *Shi Lin Guang Ji*).
Toxicity from bird meat: Take raw Bian Dou powder with cold water (ibid.).
Malignant sores with scabs, itching, and pain: Mash Bian Dou and apply externally; heals when scabs fall off (from *Zhou Hou Bei Ji Fang*).
**Flower**
**[Indications]** Treats red and white leukorrhea in women; take dry powder with rice water (Su Song). Roast, grind, and take to treat metrorrhagia and leukorrhea. Eat as wontons to treat dysentery. Mash with water and drink to resolve fatal drug poisoning. Efficacy is similar to the bean itself (Li Shizhen).
**[Prescriptions]** Two new prescriptions.
Unstopping metrorrhagia: Roast Bai Bian Dou flower until dry, grind into powder. Take 2 qian each time, empty stomach, brew fried rice in water, add a little salt, mix and take; effective immediately (from *Qi Xiao Liang Fang*).
All types of dysentery: Select freshly bloomed Bai Bian Dou flowers, clean without washing, blanch in boiling water. Mix with one strip of pork loin, one green onion, seven peppercorns, and soy sauce. Use the water from blanching the flowers to make dough, wrap into small wontons, grill and cook thoroughly (from *Bi Yong Shi Zhi Fang*).
**Leaf**
**[Indications]** Persistent vomiting and diarrhea due to Huoluan (*Bie Lu*). For cramps after vomiting and diarrhea, crush a handful raw, add a little vinegar, squeeze out juice and drink; immediate relief. Roast with vinegar, grind, and take to treat malaria (Meng Shen). Mash and apply externally for snake bites (Da Ming).
**Vine**
**[Indications]** Huoluan, decocted in equal parts with Lu Gen (Reed Rhizome), Ren Shen (Ginseng Root), and Cang Mi (aged rice) (Li Shizhen).