无毒
狗尾草茎主疣目贯发穿之即干灭也凡赤眼拳毛倒睫者翻转目睑以一二茎蘸水戛去恶血甚
良（本草纲目）【名】莠 光明草 阿罗汉草【苗】苗叶似粟而小其穗亦似粟【地】（李时珍
曰）原野垣墙多生之【用】（李时珍曰）莠草秀而不实故字从秀穗形象狗尾故俗名狗尾草【主】
其茎治目病【收】采茎筒盛以治目病【色】黄白色而无实莠之乱苗即此也
无毒
水杨梅主疔疮肿毒（本草纲目）【名】地椒【地】（李时珍曰）生水边（庚辛玉册云）地
椒一
名水杨梅多生近道阴湿处荒田野中亦有之【苗】丛生苗叶似菊茎端开黄花实类椒而不赤【用】
实
无毒
半边莲主蛇蛔伤捣汁饮以滓围涂之又治寒 气喘及疟疾寒热同雄黄各二钱捣泥碗内覆之
待色青以饭丸梧子大每服九丸空心盐汤下（李时珍寿域方）【地】（李时珍曰）半边莲小草也
生
阴湿塍堑中就地细梗【质】引蔓节节而生细叶秋开小花如莲花状【色】花淡红紫色止有半边
又呼急解索【气】平【味】辛
无毒
紫花地丁主一切痈疽发背疔肿瘰 无名肿毒恶疮（本草纲目）【名】箭头草 独行虎 羊
角子 米布袋【地】（李时珍曰）处处有之平地生者起茎沟壑边生者起蔓【时】夏开紫花结
角
【质】其叶似柳而微细（普济方云）乡村篱落生者夏秋开小白花如铃儿倒垂叶微似木香花之
叶
此与紫花者相戾恐别是一种也【味】苦辛【性】寒【治】黄胆内热地丁末酒服三钱○稻芒粘
咽不得出者箭头草嚼咽下○痈疽发背无名诸肿贴之如神紫花地丁草三伏时收以白面和成盐醋
浸二夜贴之昔有一尼发背梦得此方数日而痊○一切恶疮紫地丁根晒干以罐盛烧烟对疮熏之出
黄水取尽愈○疔疮肿毒（备急方）用紫花地丁草捣汁服虽极者亦效【合治】痈疽恶疮（杨诚
经
验方）用紫花地丁连根同苍耳叶等分捣烂酒一钟搅汁服○瘰 疔疮发背诸肿（乾坤秘韫云）
紫
花地丁根去粗皮同白蒺藜为末油和涂神效○喉痹肿痛（普济方）用箭头草叶入酱少许研膏点
入
取吐
无毒。
狗尾草的茎主治疣目（寻常疣），用头发将其贯穿，即可干枯脱落。凡是患有赤眼（结膜炎）、拳毛倒睫（眼睑内翻）的人，翻转眼睑，用一两根茎蘸水擦拭去除恶血，效果很好。（出自《本草纲目》）【名称】莠、光明草、阿罗汉草。【苗】幼苗和叶子像粟米但较小，其穗也像粟米。【产地】（李时珍说）原野、城墙边多生长。【用途】（李时珍说）莠草抽穗但不结实，所以字形从“秀”；穗形像狗尾巴，所以俗名狗尾草。【主治】其茎治疗眼病。【采收】采集茎，用筒盛装以治疗眼病。【性状】黄白色且不结实。莠草扰乱禾苗即指此物。
无毒。
水杨梅主治疔疮肿毒（急性化脓性感染）。（出自《本草纲目》）【名称】地椒。【产地】（李时珍说）生长在水边。（《庚辛玉册》说）地椒又名水杨梅，多生长在靠近道路的阴湿处，荒田野地也有。【苗】丛生，苗叶像菊花，茎端开黄花，果实像花椒但不红。【用途】果实。
无毒。
半边莲主治蛇虫咬伤，捣汁饮用，并将药渣围涂患处；又治寒喘气急及疟疾寒热往来，与雄黄各二钱捣成泥状，放在碗内覆盖，待颜色变青，用米饭制成梧桐子大小的丸剂，每次服用九丸，空腹用盐汤送下。（出自李时珍《寿域方》）【产地】（李时珍说）半边莲是小草，生长在阴湿的田埂沟渠中，贴近地面有细梗。【质地】攀援蔓生，节节而生，叶子细小，秋天开小花如莲花状。【颜色】花呈淡红紫色，只有一半开放，又称急解索。【气】平。【味】辛。
无毒。
紫花地丁主治一切痈疽发背（背部急性化脓性感染）、疔肿、瘰疬（颈部淋巴结结核）、无名肿毒、恶疮。（出自《本草纲目》）【名称】箭头草、独行虎、羊角子、米布袋。【产地】（李时珍说）到处都有，平地生长的起茎，沟壑边生长的起蔓。【时节】夏天开紫花结角。【质地】其叶像柳叶但更细微。（《普济方》说）乡村篱笆旁生长的，夏秋开小白花如铃铛倒垂，叶子微像木香花的叶子，这与紫花者不同，恐怕是另一种。【味道】苦、辛。【性质】寒。【治疗】黄疸内热：用地丁末酒服三钱。○稻芒粘在咽喉不得出者：嚼食箭头草咽下。○痈疽发背及无名诸肿：贴敷如神。紫花地丁草在三伏天采收，用白面和成，加盐醋浸泡两夜后贴敷。昔日有一位尼姑患发背，梦中得到此方，数日痊愈。○一切恶疮：将紫地丁根晒干，用罐盛装燃烧烟雾，对着疮口熏蒸，流出黄水取尽即愈。○疔疮肿毒（《备急方》）：用紫花地丁草捣汁服用，即使病情极重也有效。【合治】痈疽恶疮（杨诚经验方）：用紫花地丁连根同苍耳叶等分捣烂，加酒一钟搅汁服用。○瘰疬、疔疮、发背诸肿（《乾坤秘韫》说）：紫花地丁根去粗皮，同白蒺藜研为末，用油调和涂抹，神效。○喉痹肿痛（《普济方》）：用箭头草叶加入少许酱，研成膏点入，促使呕吐。
Non-toxic.
The stem of Setaria viridis (Dogtail Grass) treats verrucae vulgaris (common warts). By piercing it with hair, it will dry up and fall off. For those suffering from red eye (conjunctivitis) or trichiasis (inverted eyelashes), turn over the eyelid, dip one or two stems in water, and wipe away the pathogenic blood; this is very effective. (From *Bencao Gangmu*) [Names]: You (Weed), Guangming Cao (Bright Light Herb), A Luohan Cao (Arhat Herb). [Seedling]: The seedlings and leaves resemble millet but are smaller, and its panicle also resembles millet. [Habitat]: (Li Shizhen says) It grows abundantly in fields, plains, and along walls. [Usage]: (Li Shizhen says) The weed produces panicles but does not bear fruit, hence the character derives from "Xiu" (showy); the panicle resembles a dog's tail, hence the common name Dogtail Grass. [Indications]: Its stem treats eye diseases. [Harvest]: Harvest the stems, store them in tubes to treat eye diseases. [Characteristics]: Yellowish-white and does not bear fruit. The weed that confuses crops refers to this plant.
Non-toxic.
Adenophora stricta (Water Yangmei) treats ding sores and carbuncles (acute suppurative infections). (From *Bencao Gangmu*) [Name]: Di Jiao (Earth Pepper). [Habitat]: (Li Shizhen says) Grows near water. (*Geng Xin Yu Ce* states) Di Jiao is also known as Water Yangmei, growing mostly in damp, shady places near roads, and also in barren fields. [Seedling]: Clump-forming; leaves resemble chrysanthemum, yellow flowers bloom at the stem tips, fruits resemble peppercorns but are not red. [Usage]: Fruits.
Non-toxic.
Lobelia chinensis (Half-Leaf Lotus) treats snake and insect bites; crush and drink the juice, and apply the dregs around the wound. It also treats cold asthma with急促 breathing and malaria with alternating chills and fever. Mix equal parts of Lobelia chinensis and Realgar (each 2 qian), crush into a paste, place in a bowl, cover until the color turns green, then make pills the size of wutong seeds using rice flour. Take 9 pills per dose on an empty stomach with salted water. (From Li Shizhen's *Shou Yu Fang*) [Habitat]: (Li Shizhen says) Lobelia chinensis is a small herb growing in damp ditches and field ridges, with thin stems close to the ground. [Texture]: Climbing vines grow node by node with fine leaves; small flowers resembling lotus blooms in autumn. [Color]: Flowers are pale reddish-purple, blooming only on one side, also called Ji Jie Suo (Urgent Rope Unbinding). [Nature]: Neutral. [Flavor]: Pungent.
Non-toxic.
Viola yedoensis (Purple Flower Violet) treats all types of carbuncles and back abscesses, ding sores, scrofula (cervical lymphadenitis), unknown swellings, and malignant ulcers. (From *Bencao Gangmu*) [Names]: Jian Tou Cao (Arrowhead Grass), Du Xing Hu (Lone Walking Tiger), Yang Jiao Zi (Sheep Horn Seed), Mi Bu Dai (Rice Cloth Bag). [Habitat]: (Li Shizhen says) Found everywhere; those growing on flat ground have erect stems, while those by gullies have climbing vines. [Season]: Blooms purple flowers and bears pods in summer. [Texture]: Leaves resemble willow leaves but are finer. (*Pu Ji Fang* states) Those growing by village fences bloom small white bell-shaped flowers hanging downwards in summer and autumn, with leaves slightly resembling those of Costus root; this differs from the purple-flowered variety, suggesting it may be a different species. [Flavor]: Bitter, Pungent. [Property]: Cold. [Treatments]: Jaundice with internal heat: Take 3 qian of Viola yedoensis powder with wine. ○ Rice awn stuck in throat: Chew Arrowhead Grass and swallow. ○ Carbuncles, back abscesses, and unknown swellings: Apply externally with miraculous effect. Harvest Purple Flower Violet grass during the Sanfu period, mix with white flour, soak in salt and vinegar for two nights, then apply. Once, a nun with a back abscess received this prescription in a dream and recovered in a few days. ○ All malignant ulcers: Dry the roots of Purple Violet, burn them in a jar, and fumigate the ulcer until yellow fluid drains completely; then it heals. ○ Ding sores and carbuncles (*Bei Ji Fang*): Crush Purple Flower Violet grass and drink the juice; effective even in severe cases. [Combined Treatments]: Carbuncles and malignant ulcers (*Yang Cheng Jing Yan Fang*): Use equal parts of Purple Flower Violet (with roots) and Xanthium folium, crush together, add one cup of wine, stir to extract juice, and drink. ○ Scrofula, ding sores, back abscesses, and various swellings (*Qian Kun Mi Yun*): Remove the coarse skin from Purple Flower Violet roots, mix with Tribulus terrestris powder, blend with oil, and apply externally for miraculous effect. ○ Sore throat with swelling and pain (*Pu Ji Fang*): Use Arrowhead Grass leaves with a little soybean paste, grind into a paste, apply internally to induce vomiting.