一名研星草，散血丹。生阴湿地，立春后，有苗叶类狗卵草略大，茎微红，谷雨后开花
细小
，结子二粒，如荷包草子。 百草镜∶二月发苗，叶如双珠草，节间生子，如鹅不食草子而
略大，三月采，五月枯。
葛祖方∶治黄胆香港脚，丹毒游风，吐血咳血。
百草镜∶治跌扑刀伤痈肿，痰中带血，洗疥疮。
采药志∶性温败毒，治杖伤，跌打损伤，捣汁酒和服。渣罨患处，立刻消肿而愈。
余居士选要方∶治跌扑，用五灵脂三钱，麝香钱半，小将军草三两鲜者取汁，先将酒煎
上二
味，待好去渣，再入药汁滚一二沸，取服。
僧鉴平言∶此草治疔肿如神，不论疔生何处，及何种疔，皆可用。此捣极烂敷疮口留头，
次
日即干紧肉上，洗去再敷，至重者付二次即愈。轻者一涂即好，真救疔垂死之圣药也。亲试
神验。
一名九叶云头艾。三月生苗，系子出，高二三尺，叶似艾菊，香亦近之，霜后枯，产口
外五
台山二处，近有人带种，各处可植。八九月间，起穗结蕊，类野菊蕊，但不开花结实，其实
如野菊花心。 百草镜∶春月发苗，叶类艾菊，香亦近之。八月时无花而实，实先起疙瘩，
逐渐长大，内包十余子，子细长小，叶干之甚香。
黄梅时，须不时焙晒，否则易霉，霉则无用。性温，通行气血，治风痹有效。
风痹∶百草镜∶用九鼎连环草，干者二两核桃肉三两，捣烂，当归一两五钱，黄酒浸，
隔水
又名研星草、散血丹。生长在阴湿的地方，立春之后，长出苗叶，形状像狗卵草但略大一些，茎秆微微发红，谷雨时节开出细小花朵，结出两粒种子，形状像荷包草的种子。
《百草镜》记载：二月发出苗芽，叶子像双珠草，节间生出果实，像鹅不食草的种子但略大一些，三月采收，五月枯萎。
《葛祖方》记载：治疗黄疸、香港脚（足部肿痛溃烂）、丹毒游风（皮肤红肿热痛如云片状的急性炎症）、吐血、咳血。
《百草镜》记载：治疗跌打损伤、刀伤、痈肿，痰中带血，清洗疥疮。
《采药志》记载：性温，能败毒，治疗杖责造成的伤痕、跌打损伤，捣碎取汁，用酒调和服用。药渣敷在患处，立刻消肿痊愈。
《余居士选要方》记载：治疗跌打损伤，用五灵脂三钱，麝香半钱，鲜小将军草三两取汁。先将前两种药材用酒煎煮，待好之后去掉药渣，再倒入药汁煮沸一两次，取汁服用。
僧人鉴平说：这种草治疗疔疮神效，不论疔疮生在何处，也不论是哪种疔疮，都可以使用。将草捣得极烂，敷在疮口上并保留疮头，第二天肌肉干紧后，洗去再敷，严重的敷两次即可痊愈。轻的一次涂抹就好，真是挽救垂危疔疮的圣药。亲自试用，神奇有效。
另一种名为九叶云头艾。三月生苗，由子实生出，高二三尺，叶子像艾菊，香气也接近，霜降后枯萎，产于口外五台山两处，近来有人带种，各地可以种植。八九月间，抽穗结蕊，类似野菊花的蕊，只是不开花结实，其果实像野菊花的花心。
《百草镜》记载：春季发苗，叶子像艾菊，香气也接近。八月时无花而有实，果实先起疙瘩，逐渐长大，内部包裹十余粒种子，种子细长微小，叶子晒干后非常香。
Also known as Yanxing Cao (Star-Grinding Herb) or Sanxue Dan (Blood-Dispersing Cinnabar). It grows in damp and shady places. After the Start of Spring, shoots and leaves emerge, resembling Gouluann Cao (Dog Egg Grass) but slightly larger, with stems that are faintly red. Flowers bloom after the Grain Rain, which are small and delicate, bearing two seeds each, resembling the seeds of Hebaocao (Pouch Grass).
*Baicao Jing* (Mirror of Hundred Herbs) records: Shoots sprout in February; leaves resemble Shuangzhucao (Double Pearl Grass); fruits develop between nodes, similar to Ebusicaocao (Goat's-Head Grass) seeds but slightly larger. Harvested in March, it withers in May.
*Ge Zufang* (Prescriptions by Ancestor Ge) records: Treats Huangdan (Jaundice), Xianggangjiao (Hong Kong Foot/Charcot-like foot condition), Dandu Youfeng (Erysipelas/Wandering Wind), hematemesis (vomiting blood), and hemoptysis (coughing up blood).
*Baicao Jing* records: Treats traumatic injuries from falls and blows, knife wounds, carbuncles and swellings, blood in sputum, and scabies. Wash with decoction for scabies.
*Caiyao Zhi* (Record of Herb Collection) records: Nature is warm, capable of resolving toxicity. Treats injuries from beating and traumatic bruises. Crush fresh herb to extract juice, mix with wine, and take orally. Apply the dregs to the affected area to immediately reduce swelling and promote healing.
*Yu Jushi Xuanyao Fang* (Selected Essential Prescriptions by Layman Yu) records: For treating traumatic injuries, use Wulingzhi (Trogopterus Dung) 3 qian, Shexiang (Musk) 0.5 qian, and fresh Xiaojiangjuncao (Little General Grass) 3 liang to extract juice. First, decoct the first two ingredients in wine, remove the dregs when ready, then add the herb juice and boil for one or two boils. Take the liquid.
Monk Jianping stated: This herb is miraculous for treating Dingzhong (carbuncles/furuncles). Regardless of the location or type of Ding, it can be used. Pound the herb into a fine paste, apply to the wound while leaving the head of the Ding exposed. The next day, once the flesh tightens, wash off and reapply. Severe cases heal after two applications; mild cases heal after one application. It is truly a sacred medicine for saving critical Ding cases. Personally tested and found effective.
Another variety is named Jiuyeyuntou Ai (Nine-Leaf Cloud-Head Mugwort). Shoots emerge in March from seeds, growing two to three chi high. Leaves resemble Ai Ju (Mugwort Chrysanthemum), with a similar fragrance. It withers after frost. Produced in two locations outside the Great Wall at Wutai Mountain. Recently, people have brought seeds for cultivation, allowing it to be planted elsewhere. In August and September, it produces spikes and calyces resembling wild chrysanthemum calyces, but does not flower or set fruit normally; the actual fruit resembles the heart of a wild chrysanthemum.
*Baicao Jing* records: Shoots sprout in spring; leaves resemble Ai Ju, with a similar fragrance. In August, there are no flowers but there are fruits. The fruits start as bumps, gradually enlarging, containing more than ten seeds inside. The seeds are slender and small. When dried, the leaves are very fragrant.
During the Plum Rain season, it must be frequently baked and sun-dried; otherwise, it easily molds, rendering it useless. Nature is warm, promotes the circulation of Qi and Blood, and is effective for treating Fengbi (Wind-Bi syndrome/Rheumatism).
Fengbi: *Baicao Jing* records: Use Jiudinglianhuangcao (Nine Cauldron Interlocking Grass) 2 liang (dried), Walnut Meat 3 liang, pounded into a paste, plus Danggui (Angelica Sinensis) 1.5 liang. Soak in yellow wine, and steam over water...