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寒。主小儿赤丹。其渍苎汁，疗渴。
陶隐居云∶即今绩苎尔。又有山苎亦相似，可入用也。唐本注云∶《别录》云，根，安
胎，
贴热丹毒肿有效。沤苎汁，主消渴也。今按陈藏器本草云∶苎，破血，渍贮与产妇温服之。
将苎麻与产妇枕之，止血晕。产后腹痛，以苎安腹上则止。蚕咬人毒入肉，取苎汁饮之。今
以苎近蚕种，则蚕不生也。臣禹锡等谨按蜀本注云∶苗高丈以来，南人剥其皮为布。二月
、
八月采。江左山南皆有之。药性论云∶苎麻根，使，味甘，平。主怀妊安胎。日华子云∶味
甘，滑冷，无毒。治心膈热，漏胎下血，产前后心烦闷，天行热疾，大渴大狂，服金石药人
心热， 毒箭蛇虫咬。
图经曰∶苎根，旧不载所出州土，今闽、蜀、江、浙多有之。其皮可以绩布。苗高七、
八尺
。
叶如楮叶，面青背白，有短毛。夏秋间着细穗青花。其根黄白而轻虚，二月、八月采。又有
一种山苎亦相似。谨按陆机《草木疏》云∶苎，一科数十茎，宿根在地中，至春自生，不
须
栽种。荆、杨间岁三刈，官令诸园种之，岁再刈，便剥取其皮，以竹刮其表，浓处自脱，得
里如筋者煮之，用缉。今江浙、闽中尚复如此。孕妇胎损方所须。又主白丹。浓煮水俗之，
日三、四瘥。韦宙疗痈疽发背，初觉未成脓者。以苎根、叶熟捣敷上，日夜数易之，肿消则
瘥矣。
圣惠方∶治妊娠胎动欲坠，腹痛不可忍者。用苎根二两锉，银五两，酒一盏，水一大盏
同煎
，
去滓。不计时候分温作二服。外台秘要∶备急治白丹。苎根三斤，小豆四升，以水二、三斗
，
煮以浴三、四遍，浸洗妙。肘后方∶丹者，恶毒之疮，五色无常。苎根三升，水三半煮浴。
每
日涂之。又方∶治动不安。取苎根如足大指者一尺， 咀。以水五升，煮取三升，去滓服。
斗
门方∶治五种淋。用苎麻根两茎打碎，以水一碗半，煎取半碗。频服即通。大妙。梅师方∶
治诸
痈疽发背，或发乳房，初起微赤，不急治之即死。速消方∶捣苎根敷之，数易。又方∶治妊
娠
忽下黄汁如胶，或如小豆汁。苎根切二升，去黑皮。以银一斤，水九升，煎取四升。每服入
酒半升或一升煎药，取一升，分作二服。
衍义曰∶苎根，如 麻。花如白杨而长，成穗生，每一朵，凡数十穗，青白色。
苎根
性寒。主治小儿赤丹（一种发于皮肤表面的红色丹毒）。将苎麻浸泡后的汁液，可治疗口渴。
陶隐居说：就是现在绩织苎麻的苎麻。又有山苎也相似，可以入药使用。《唐本草》注解说：《名医别录》记载，苎根能安胎，外贴治疗热丹毒肿有效。沤制的苎麻汁，主治消渴（糖尿病样症状）。现在考证陈藏器《本草拾遗》记载：苎麻能破血，浸泡储存后给产妇温服。让产妇枕着苎麻，能止血晕。产后腹痛，将苎麻放在腹部上就能停止疼痛。蚕咬人，毒气侵入肌肉，取苎麻汁饮用。现在发现苎麻靠近蚕种，蚕就不会生长了。臣禹锡等人谨按《蜀本草》注解说：苎麻苗高一丈以上，南方人剥其皮制作布匹。二月、八月采收。江左、山南各地都有。《药性论》记载：苎麻根，作为使药，味甘，平。主治怀孕安胎。日华子说：味甘，滑利寒冷，无毒。治疗心膈热，漏胎下血，产前产后心烦闷，时行热病，大渴大狂，服用金石类药物人心热，毒箭蛇虫咬伤。
《图经本草》说：苎根，旧籍未记载出产州土，现在福建、四川、江苏、浙江多有生长。其皮可以用来绩布。苗高七、八尺。叶子像楮树叶，正面青背面白，有短毛。夏秋间结细穗开青花。其根黄白色而轻虚，二月、八月采收。又有一种山苎也相似。谨按陆机《草木疏》记载：苎，一丛数十茎，宿根在地下，到春天自然生长，不需要栽种。荆州、扬州一带一年收割三次，官府命令各园种植，一年收割两次，就剥取其皮，用竹片刮去表面，厚处自然脱落，得到里面如筋一样的部分煮制，用来缉缝。现在江浙、福建中仍如此。孕妇胎损方所需。又主治白丹（白色丹毒）。浓煮水洗涤患处，每天三、四次即愈。韦宙治疗痈疽发背（背部痈疽），初觉未成脓者。用苎根、叶熟捣敷在上面，日夜多次更换，肿消则痊愈。
《太平圣惠方》：治疗妊娠胎动欲坠，腹痛不可忍受。用苎根二两锉碎，银五两，酒一盏，水一大盏同煎，去渣。不分时候分两次温服。《备急千金要方》：备急治疗白丹。苎根三斤，小豆四升，用水二、三斗，煮后洗浴三、四遍，浸洗妙。《肘后备急方》：丹者，是恶毒之疮，五色无常。苎根三升，水三半煮后洗浴。每日涂抹。又一方：治疗胎动不安。取苎根如足大拇指大一尺，切碎。用水五升，煮取三升，去渣服用。《斗门方》：治疗五种淋证（小便不利等症）。用苎麻根两茎打碎，用水一碗半，煎取半碗。频服即通。非常妙。《梅师集验方》：治疗各种痈疽发背，或发乳房，初起微赤，不紧急治疗就会死亡。速效方：捣烂苎根敷在上面，多次更换。又一方：治疗妊娠忽然流出黄汁如胶，或如小豆汁。苎根切二升，去黑皮。用银一斤，水九升，煎取四升。每次服药加入酒半升或一升煎药，取一升，分作两次服用。
《本草衍义》说：苎根，像麻。花像白杨且长，成穗状生长，每一朵，凡数十穗，青白色。
Zhu Gen (Broussonetia papyrifera Root)
Nature: Cold. Indications: Primarily treats Chi Dan (Red Erysipelas, a red skin eruption) in children. The juice obtained by soaking Ramie can treat thirst.
Tao Hongjing stated: This is the Ramie used for weaving today. There is also Shan Zhu (Wild Ramie) which is similar and can be used medicinally. The Tang Bencao annotation notes: The Mingyi Bielu records that the root stabilizes the fetus; applying it externally to treat Re Dan Du Zhong (Heat Erysipelas and toxic swelling) is effective. Fermented Ramie juice primarily treats Xiao Ke (Wasting-Thirst). Current research into Chen Cangqi's Bencao Shiyi records: Ramie invigorates blood and resolves stasis; after soaking and storing, it can be taken warm by postpartum women. Having the mother sleep on a pillow filled with Ramie stops bleeding and dizziness. For postpartum abdominal pain, placing Ramie on the abdomen stops the pain. If bitten by a silkworm with venom entering the flesh, drinking Ramie juice is indicated. It is observed that if Ramie is near silkworm eggs, the silkworms will not hatch. Ministers Yuxi et al. carefully followed the Shu Bencao annotation: When Ramie seedlings are over one zhang high, people in the south peel the bark to make cloth. Harvested in the second and eighth lunar months. Found in Jiangzuo and Shannan. The Yaoxing Lun records: Ramie root, as an assistant herb, has a sweet taste and neutral nature. It primarily treats pregnancy stabilization. Ri Huazi stated: Sweet, slippery, cold, non-toxic. Treats Heart and Diaphragm Heat, Lou Tai Xia Xue (threatened miscarriage with bleeding), pre- and postpartum mental restlessness, epidemic heat diseases, extreme thirst and mania, heart heat from taking mineral drugs, and bites from poisonous arrows, snakes, and insects.
The Tujing Bencao states: Zhu Gen was not recorded in older texts regarding its origin; currently, it grows abundantly in Fujian, Sichuan, Jiangsu, and Zhejiang. Its bark can be woven into cloth. Seedlings grow seven to eight chi high. Leaves resemble those of the paper mulberry (Chu Ye), green on the front, white on the back, with short hairs. In summer and autumn, it bears fine spikes with blue-white flowers. The root is yellowish-white, light, and spongy; harvested in the second and eighth lunar months. There is another type, Shan Zhu, which is similar. Carefully following Lu Ji's Caomu Shu: Ramie consists of dozens of stems per clump; the perennial root remains underground and sprouts naturally in spring without planting. In Jing and Yang regions, it is cut three times a year; official orders required gardens to plant it, cutting twice a year, then peeling the bark, scraping the surface with bamboo, allowing the thick outer layer to shed naturally, leaving the inner fibrous part to be boiled and used for sewing. This practice continues in Jiangzhe and Fujian. It is required in formulas for fetal damage in pregnant women. It also treats Bai Dan (White Erysipelas). Washing the affected area with strong decoction, three to four times daily, leads to recovery. Wei Zhi treated Yong Ju Fa Bei (Back Carbuncle); at the initial stage before suppuration, he applied mashed fresh Ramie root and leaves, changing frequently day and night until the swelling subsided and recovery occurred.
Taiping Shenghui Fang: Treats fetal movement threatening abortion with unbearable abdominal pain. Use two liang of chopped Ramie root, five liang of silver, one cup of wine, and one large cup of water; decoct together, strain. Take warm in two doses at any time. Beiji Qianjin Yaofang: Emergency treatment for Bai Dan. Three jin of Ramie root and four sheng of adzuki beans; boil in two to three dou of water; bathe three to four times, soaking is excellent. Zhouhou Beiji Fang: "Dan" refers to malignant sores of varying colors. Boil three sheng of Ramie root in three and a half units of water for bathing. Apply topically daily. Another formula: Treats restless fetus. Take one chi of Ramie root about as thick as the big toe, chop. Boil in five sheng of water to obtain three sheng, strain, and drink. Doumen Fang: Treats the five types of Lin syndrome (dysuria). Crush two stems of Ramie root, boil in one and a half bowls of water to obtain half a bowl. Drink frequently to promote urination. Highly effective. Mei Shi Jiyuan Fang: Treats various carbuncles on the back or breast; if initially slightly red and not treated urgently, death ensues. Rapid resolution formula: Mash Ramie root and apply externally, changing frequently. Another formula: Treats sudden discharge of yellow, glue-like fluid or bean-water-like fluid during pregnancy. Cut two sheng of Ramie root, remove black skin. Boil with one jin of silver and nine sheng of water to obtain four sheng. For each dose, add half to one sheng of wine to the decoction, reduce to one sheng, and divide into two doses.
Bencao Yan Yi states: Ramie root resembles hemp. Flowers resemble those of white poplar but longer, growing in spikes; each cluster produces dozens of spikes, pale greenish-white.