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味苦、甘，平，无毒。主腰背痛强，骨节风寒湿周痹，恶疮不瘳，热气，伤中，恚怒
，阴痿失溺，关节老血，老人五缓。一名赤节。生真定山谷。二月、八月采根，曝干。（薏
苡为之使，畏葵根、大黄、茈胡、牡蛎。）
陶隐居云∶今处处有，亦似菝 而小异，根大，不甚有角节，色小浅。唐本注云∶此药
有二
种∶茎有刺者，根白实。无刺者，根虚软。内软者为胜，叶似薯蓣，蔓生。臣禹锡等谨按
药
性论云∶萆 ，能治冷风 痹，腰脚不遂，手足惊掣，主男子 腰痛。久冷，是肾间有膀
胱宿水。博物志云∶菝 与萆 相乱。日华子云∶治痈缓软，风头旋，痫疾，补水脏，坚筋
骨，益精，明目，中风失音。时人呼为白菝 。
图经曰∶萆 ，生真定山谷，今河、陕、京东、荆、蜀诸郡有之。根黄白色，多节，三
指许
大
。苗叶俱青，作蔓生，叶作三叉似山芋，又似绿豆叶。花有黄、红、白数种，亦有无花结白
子者。春、秋采根，曝干。旧说此药有二种，茎有刺者，根白实；无刺者，根虚软，以软者
为胜。今成德军所产者，根亦如山芋，体硬，其苗引蔓，叶似荞麦，子三棱，不拘时月采。
其根用利刀切作片子，曝干用之。《正元广利方》∶疗丈夫腰脚痹缓急，行履不稳者。以萆
二十四分，合杜仲八分，捣筛。每旦温酒和服三钱匕，增至五匕。禁食牛肉。又有萆 丸大
方，功用亦同。
孙尚药∶治肠风痔漏如圣散∶萆 细锉，贯众逐叶擘下了，去土，等分捣罗为末。每服
二钱
，温酒调下，空心食前服。
味苦、甘，性平，无毒。主治腰背僵硬疼痛，骨节间风寒湿邪引起的周身痹痛，恶疮久治不愈，热气内扰，脾胃受损，愤怒情绪导致的阳痿及小便失禁，关节陈旧性瘀血，以及老年人筋骨松弛无力。又名赤节。产于真定山谷。二月和八月采集根部，晒干。（薏苡仁作为其引经药，忌与葵根、大黄、柴胡、牡蛎同用。）
陶弘景说：现在到处都有生长，外形也类似菝葜但略有不同，根部较大，角节不明显，颜色较浅。《新修本草》注解说：这种药有两种：茎上有刺的，根部白色坚实；没有刺的，根部虚软。以根部虚软的为优，叶片像薯蓣，蔓生。臣禹锡等人谨按《药性论》记载：萆薢能治疗冷风引起的痹症，腰脚活动不利，手足抽搐，主治男子腰痛。久病寒冷，是肾间有膀胱留饮宿水。《博物志》说：菝葜与萆薢容易混淆。日华子说：治疗痈疽缓软，头晕目眩，癫痫，补益肾脏，坚固筋骨，益精明目，中风失音。当时人称之为白菝葜。
《图经本草》说：萆薢产于真定山谷，现在河、陕、京东、荆、蜀各郡都有出产。根部黄白色，多节，直径约三指宽。苗叶都是青色，呈蔓生状，叶子分三叉像山芋，又像绿豆叶。花有黄、红、白几种，也有不开花结白子的。春秋两季采集根部，晒干。旧时说这种药有两种，茎上有刺的，根部白色坚实；没有刺的，根部虚软，以软的为优。现在成德军所产的，根部也像山芋，质地坚硬，苗引蔓生长，叶子像荞麦，果实三棱形，不拘时节采集。其根用利刀切成片，晒干使用。《正元广利方》：治疗男子腰脚痹痛松弛急迫，行走不稳。用萆薢二十四分，配合杜仲八分，捣碎筛细。每天早晨用温酒送服三钱匕，逐渐增加到五钱匕。禁止食用牛肉。又有萆薢丸大方，功效也相同。
Dioscorea Hypoglauca Rhizome (Bixie)
Taste: bitter, sweet. Nature: neutral. Toxicity: non-toxic. Indications: primarily treats stiffness and pain in the lower back, wind-cold-dampness bi-syndrome affecting bone joints throughout the body, chronic ulcers that do not heal, internal heat disturbance, damage to the middle jiao (spleen and stomach), impotence and urinary incontinence caused by anger, old blood stasis in joints, and five types of flaccidity in the elderly. Another name is Chi Jie (Red Joint). Grows in the valleys of Zhending. Roots are harvested in February and August and dried in the sun. (Coix Seed/Yiyi Ren serves as its guiding herb; it is incompatible with Sunflower Root/Kui Gen, Rhubarb/Dahuang, Bupleurum/Zihu, and Oyster Shell/Muli.)
Tao Hongjing stated: It grows everywhere now. Its appearance is similar to Smilax/Baye but slightly different; the root is larger, with less distinct nodes, and a lighter color. The Commentary on the New Materia Medica (Xinxiu Bencao) notes: This medicine has two varieties: those with thorny stems have white, solid roots; those without thorns have hollow, soft roots. The softer variety is superior. The leaves resemble Yam/Shuyu and grow as vines. Ministers Yu Xi et al. carefully noted according to the Treatise on the Properties of Medicinals (Yaoxing Lun): Dioscorea Hypoglauca Rhizome can treat bi-syndrome caused by cold wind, inability to move the waist and legs, convulsions of the hands and feet, and primarily treats lumbar pain in men. Chronic cold indicates retained water in the bladder within the kidney area. The Comprehensive Records of All Kinds of Things (Bowuzhi) states that Smilax/Baye and Dioscorea Hypoglauca Rhizome/Bixie are often confused. Ri Huazi stated: It treats soft abscesses, dizziness, epilepsy, tonifies the Kidney Zang, strengthens tendons and bones, benefits essence, improves vision, and treats loss of speech due to stroke. People at that time called it Bai Baye (White Smilax).
The Illustrated Classic of Materia Medica (Tujing) states: Dioscorea Hypoglauca Rhizome grows in the valleys of Zhending. It is now found in various commanderies including He, Shan, Jingdong, Jing, and Shu. The root is yellowish-white, multi-noded, about three fingers wide. Both the sprout and leaves are green, growing as vines. The leaves are trifid like wild yam or mung bean leaves. Flowers come in yellow, red, and white varieties; some produce white seeds without flowering. Roots are harvested in spring and autumn and dried in the sun. Old texts mention two varieties: thorny stems have white, solid roots; thornless ones have hollow, soft roots, with the soft being superior. Those produced in Chengde Jun today have roots resembling wild yams, hard in texture, with vining stems and leaves resembling buckwheat, and triangular fruits. They can be harvested at any time. The roots are sliced with a sharp knife and dried for use. The Zheng Yuan Guang Li Fang: Treats men's lumbar and leg bi-syndrome with flaccidity and urgency, causing unstable gait. Use 24 parts of Dioscorea Hypoglauca Rhizome combined with 8 parts of Eucommia Bark/Duzhong, pounded and sifted. Take 3 qianbi with warm wine every morning, increasing gradually to 5 qianbi. Beef consumption is prohibited. There is also a large formula for Dioscorea Hypoglauca Rhizome Pills, which has similar efficacy.
Sun Shangyao: Ru Sheng San (Like-Sage Powder) for treating intestinal wind hemorrhoids and fistulas: Finely chop Dioscorea Hypoglauca Rhizome. Split Crowberry/Guanzhong leaves one by one, remove soil, mix in equal parts, pound and sieve into powder. Take 2 qian per dose, mixed with warm wine, taken on an empty stomach before meals.