又名旱莲草。金陵草。下湿地处处有之。苗似旋复。而花白细者。鳢肠也。一种
结房如莲者。乃小莲翘也。二种折其苗。皆有汁出。须臾而黑。
草
气味甘酸平。纯阴之草也。入肾入肝。亦入胃与大小肠。 益肾阴。乌髭发。治血痢。
通小肠。疗溺血。及肾虚变为劳淋。敷疮止血排脓。 正禀北方坎水之气。故其汁元黑。古
今变白之草。当以兹为胜。（仲淳） 肾主二便。肝亦司小便。此味入肾与肝而益阴。故治
血
变白
布绞
合和
如
莲草洗净。晾干。研青盐为末。将草铺于瓷钵内。一层盐。一层草。腌一七。沥草晒干。有
余汁
补竹
日每频擦自验。 溺血。同车前草等分。杵取汁。每空心服三杯。
钱。治肠风脏毒。下血不止。又用捣汁。冲极热酒饮。治痔漏疮发
不过三服。 滋肾乌须。旱莲丸。旱莲草用汁晒半斤。生姜三斤取
取汁晒半斤。细辛三两。破故纸一斤。面炒杜仲半斤。炒五加皮酒
半斤。枸杞子四两。川芎四两。没药二两。为末。核桃仁去皮半斤
每服五十丸。黄酒送下。
〔论〕 旱莲多生下湿地。折其茎。出汁黑色。所禀阴气纯而且浓。又化为汁。以合于
人身
而乌
之水
盛也
不利
而阴
血热则须发白。彼年逾壮而俱
取以凉血热乎。惟百味先至
六月。煎于日中者五。又合姜
其不止用火制者。凡火不能胜
上升。则须润而黑。六八以后。升令少。降令多。以
精血药以防之。染掠亦非上策。又乌须亦必因证用药
则犹剖腹而藏珠也。
鲤肠阴寒性冷。虽善凉血。不益脾胃。病患脾胃虚败。及易溏泻者。勿轻与服。不用姜
汁椒
〔修治〕 取汁用姜汁和剂日中煎熬。此千金法。
又名旱莲草、金陵草。在低湿之地到处都有生长。其幼苗形状类似旋复花，但花朵白色且细小的，就是鳢肠。另一种结出的果实像莲蓬一样的，则是小莲翘。这两种草折断茎叶后，都会有汁液流出，不一会儿就会变黑。
【性味与功效】
气味甘、酸、平。属于纯阴的草本植物。归肾经、肝经，也入胃经及大肠、小肠经。能滋补肾阴，使胡须头发变黑，治疗血痢，通利小肠，治疗尿血，以及肾虚导致的劳淋（因肾虚引起的淋证）。外敷可止血排脓。它正禀受北方坎水之气，所以它的汁液原本是黑色的。古今用来使白发变黑的草药，应当以这种为最佳。（仲淳评注）
肾主管大小便，肝也参与调控小便。此药入肾与肝而补益阴液，因此能治疗……（此处原文有缺漏或排版错误，结合下文“变白”推测为治须发变白）。
【用法与方剂】
将旱莲草洗净，晾干，研磨成青盐末。将草铺在瓷钵内，一层盐、一层草，腌制七天，沥干草液晒干。若有剩余汁液，可用于补充竹筒等容器（此处原文“补竹”语意不明，疑为传抄错误或特定语境，暂按字面直译或忽略不通处，重点在于后续用法）。每日频繁擦拭，自见疗效。
治疗尿血：与车前草等量，捣碎取汁，每次空腹服用三杯。
治疗肠风脏毒（指肠道湿热引起的出血），下血不止：又用捣汁，冲服极热的酒饮用，不过服用三次即可痊愈。
滋肾乌须方——旱莲丸：取旱莲草汁晒干得半斤，生姜三斤取汁晒干得半斤，细辛三两，破故纸（补骨脂）一斤，面粉炒杜仲半斤，酒炒五加皮半斤，枸杞子四两，川芎四两，没药二两。研为细末，核桃仁去皮半斤（捣烂和药）。每服五十丸，用黄酒送下。
【论述】
旱莲多生长在低湿之地，折断茎秆，流出的汁液是黑色的。它所禀受的阴气纯粹而且浓厚，又化为汁液，合于人身之水精旺盛之时。若血热则须发变白，那些年过壮年而须发皆白的人，难道不是应该用它来凉血清热吗？只有百味先至……（此处原文逻辑跳跃，大意是强调其滋阴凉血之功）。六月期间，在日中煎煮五次，又加入姜汁调和。凡是不用火制的药物，火不能胜其阴寒之性，使其上升，则需要滋润而变黑。人过六八（48岁）以后，升发之气少，沉降之气多，应以精血类药物来防止衰老。染发掠鬓也不是上策。另外，乌须也必须根据证候用药，否则就像剖腹藏珠一样愚蠢。
鳢肠（旱莲草）阴寒性冷，虽然善于凉血，但不利于脾胃。病患若脾胃虚败，以及容易溏泻者，不要轻易服用。不用姜汁椒……（此处原文截断，意指需配伍温中药或忌用）。
Also known as Ecliptae Herba (Hanliancao) or Jinling Cao. It grows everywhere in low-lying and damp areas. Its seedlings resemble Inulae Flos (Xuanfu), but the variety with small white flowers is Ecliptae Herba. Another variety that produces fruit resembling a lotus pod is Xiao Lianqiao. When the stems of these two varieties are broken, juice exudes and turns black after a short while.
[Properties and Actions]
The flavor is sweet, sour, and neutral. It is a purely Yin herb. It enters the Kidney and Liver meridians, and also the Stomach, Large Intestine, and Small Intestine meridians. It benefits Kidney Yin, darkens beard and hair, treats bloody dysentery, unblocks the Small Intestine, treats hematuria, and addresses Lao Lin (chronic strangury due to Kidney deficiency). Applied externally, it stops bleeding and discharges pus. It precisely inherits the Qi of Kan Water from the North; therefore, its juice is originally black. Among herbs used historically and currently to turn white hair black, this one is considered superior. (Commentary by Zhongchun)
The Kidney governs urination and defecation, and the Liver also regulates urination. This herb enters the Kidney and Liver to benefit Yin, thus treating [hair turning white].
[Usage and Formulas]
Wash the Ecliptae Herba, dry it, and grind it into powder with Green Salt. Spread the herb in a porcelain mortar, layering salt and herb, marinate for seven days, drain the juice, and dry the herb. If there is excess juice, it can be stored [text unclear: "bu zhu"]. Rub frequently daily for verified efficacy.
For Hematuria: Mix with Plantaginis Herba (Cheqiancao) in equal proportions, crush to extract juice, and take three cups on an empty stomach each time.
For Changfeng Zangdu (intestinal wind and visceral toxin causing persistent lower GI bleeding): Crush to extract juice, mix with extremely hot wine, and drink. It usually cures within three doses.
Formula for Nourishing Kidney and Darkening Beard — Hanlian Wan (Eclipta Pill): Take half a jin of dried juice from Ecliptae Herba, half a jin of dried juice from three jin of fresh Ginger Rhizome (Shengjiang), three liang of Asari Radix (Xixin), one jin of Psoraleae Fructus (Poguzhi), half a jin of Eucommiae Cortex (Duzhong) stir-fried with flour, half a jin of Acanthopanacis Senticosi Cortex (Wujiaopi) prepared with wine, four liang of Lycii Fructus (Gouqizi), four liang of Chuanxiong Rhizoma (Chuanxiong), two liang of Myrrha (Moyao). Grind into fine powder. Add half a jin of peeled Walnut Kernel (Hetaoren) [pounded and mixed]. Take fifty pills per dose, delivered with yellow wine.
[Dissertation]
Eclipta grows mostly in damp places. Breaking the stem yields black juice. It inherits pure and dense Yin Qi, which transforms into juice, corresponding to the abundance of water essence in the human body. When Blood Heat occurs, beard and hair turn white. Those past their prime whose hair has turned white entirely should use this herb to cool Blood and clear heat. [Text fragmentary]. During the sixth month, decoct five times in the sun, adding Ginger Juice. For herbs not processed by fire, fire cannot overcome their Yin-cold nature to make them ascend; they require moistening to become black. After age forty-eight (six times eight), ascending Qi decreases and descending Qi increases; one should prevent decline with Essence and Blood tonics. Dyeing or grooming hair is not the best strategy. Furthermore, darkening hair must be based on syndrome differentiation; otherwise, it is like opening the belly to hide pearls.
Eclipta is Yin-cold in nature. Although good at cooling Blood, it does not benefit the Spleen and Stomach. Patients with deficient and failing Spleen-Stomach or those prone to loose stools should not take it lightly. Do not use without Ginger Juice and Pepper... [Text cuts off].
[Processing]
When extracting juice, mix with Ginger Juice and decoct in the sun. This is the method from Qianjin Fang.