蓝凡五种。各有主治。蓼蓝叶如蓼。五六月开化成穗。细小浅红色。子亦如蓼。岁可三
刈。故先生禁之。菘蓝叶如白菘。马蓝叶如苦 。即大叶冬蓝。俗谓板蓝。二蓝花子并如蓼
蓝。吴蓝长茎如蒿而花白。吴人种之。木蓝长茎如决明。高者三四尺。布叶如槐。七月开淡
红花。结角长寸许。其子亦如马蹄决明而微小。迥与诸蓝不同。而作淀则一也。（濒湖）
蓝实
惟蓼蓝入药。五六月采之。
味苦甘。气寒。 本经解诸毒。 甄权利五脏。调六腑。通关节。治经络中结气。 按
蓝实
于其
蓼
分
蓝叶汁
系蓼蓝。
味苦甘。气寒。 涂五心。止烦闷。杀百药毒。解野狼宕射罔毒。及朱砂砒石毒。有人病
呕吐
乎脾。
故蓝为
也。（
板蓝根
即马蓝。
气味苦寒。 治妇人败血。（连根焙捣。酒服一钱匕。）天行热毒。（普济消毒饮用之以
治大
蓝淀
时行热毒。心神烦躁。用蓝淀一匙。新汲水一盏服。 急疳蚀鼻口。数日欲死。取蓝
淀敷之令遍。日十度。夜四度愈。
〔总论〕 诸蓝形虽不同。性味不远。皆能解毒除热。惟木蓝叶力似少劣。而蓝子则专
取蓼
湖）
青布
解诸物毒。 天行烦毒。小儿寒热丹毒。井水渍取汁饮之。 浸汁和生姜汁服。止
烧灰敷恶疮经年不瘥者。 烧灰酒服。主唇裂生疮口臭。仍和脂涂之。 恶疮防水。青布和
蜡烧烟筒中熏之。入水不烂。
疮溃烂。陈艾五钱。雄黄二钱。青布卷作大炷点火
蓝草共有五种。每种都有各自的主治功效。蓼蓝的叶子形状像蓼草，五六月间开花结穗，花朵细小呈浅红色，种子也像蓼草的种子，一年可以收割三次，所以古人禁止过度种植。菘蓝的叶子形状像白菜（菘），马蓝的叶子形状像苦荬菜，也就是大叶冬蓝，俗称板蓝。这两种蓝的花和种子都与蓼蓝相似。吴蓝茎秆较长，像蒿草一样，开白花，吴地人种植它。木蓝茎秆较长，像决明子植株一样，高的有三四尺，叶片分布像槐树，七月开淡红花，结出长约一寸多的角果，其种子也像马蹄决明但更微小，这与其他的蓝草截然不同，但用来制作靛蓝染料则是一样的。（引自李时珍《本草纲目》）
蓝实（蓝草的种子）
只有蓼蓝的种子入药，在五六月间采集。
味道苦、甘，性寒。《神农本草经》记载它能解各种毒。《名医别录》记载它能利五脏，调和六腑，通利关节，治疗经络中郁结的气机。
按：蓝实属于蓼蓝类。
蓝叶汁
来源于蓼蓝。
味道苦、甘，性寒。涂抹于五心（两手心、两足心及心口），可止烦闷，杀灭各种药物之毒，解除野狼牙射罔毒，以及朱砂、砒石等毒。有人患脾病呕吐，故蓝草能……（此处原文似有脱漏或语意未完，依文意译为：故蓝草被视为……）
板蓝根
即马蓝的根。
气味苦、寒。治疗妇人瘀血停滞。（将带根的药材焙干捣碎，用酒送服一钱匕。）治疗天行热毒（流行性热性病）。普济消毒饮中使用它来治疗大……（此处原文截断，依文意补全为：治疗大规模流行的热毒）。天行热毒导致心神烦躁，用蓝淀（靛蓝粉末）一匙，新汲水一盏服用。急疳蚀鼻口症（严重的口腔鼻腔溃烂），数日欲死，取蓝淀敷患处使其遍布，每日十次，夜间四次，可愈。
〔总论〕
各种蓝草形态虽然不同，但药性和味道的差别不大，都能解毒除热。只有木蓝叶的药力似乎稍弱，而蓝子（种子）则专门选取蓼蓝的。
青布（靛蓝染过的布/或指代蓝制品）
解各种物体之毒。治疗天行烦毒（流行性热病引起的烦躁）、小儿寒热丹毒（小儿发热伴皮肤红斑），用井水浸泡取汁饮用。浸出的汁液混合生姜汁服用，可止……（此处原文截断）。烧成灰敷在多年不愈的恶疮上。烧成灰后用酒送服，主治嘴唇开裂生疮、口臭，并配合油脂涂抹。治疗恶疮防水，将青布和蜡放入烟筒中燃烧熏蒸，入水不烂。疮疡溃烂，用陈艾五钱，雄黄二钱，青布卷成大炷点燃……（此处原文截断，通常用于灸疗或熏洗）。
There are five types of Indigofera plants (Lan). Each has its own therapeutic indications. The leaves of Polygonum tinctorium (Poligonum Lan) resemble those of Persicaria (Liao). It flowers and forms spikes in the fifth and sixth lunar months; the flowers are small and light red, and the seeds also resemble those of Persicaria. It can be harvested three times a year, which is why ancient sages prohibited its over-cultivation. The leaves of Isatis indigotica (Song Lan) resemble those of Chinese cabbage (Song); the leaves of Strobilanthes cusia (Ma Lan) resemble those of Ixeris (Ku Ju), which is also known as large-leaf winter indigo, commonly called Ban Lan. The flowers and seeds of these two indigos are similar to those of Polygonum tinctorium. The stems of WU Lan are long like Artemisia (Hao) with white flowers, cultivated by people in Wu region. The stems of Indigofera tinctoria (Mu Lan) are long like Cassia obtusifolia (Jue Ming); the taller ones reach three or four chi, with leaves distributed like those of Sophora japonica (Huai). It blooms pale red flowers in the seventh lunar month and produces pods about one cun long. Its seeds are also like those of Cassia obtusifolia but smaller, distinctly different from other indigos, yet all yield indigo dye equally. (Cited from Li Shizhen)
Indigo Seeds (Lan Shi)
Only the seeds of Polygonum tinctorium are used medicinally, harvested in the fifth and sixth lunar months.
Taste: bitter, sweet. Nature: cold. *Shennong Bencao Jing* states it resolves various toxins. *Mingyi Bielu* states it benefits the five zang organs, harmonizes the six fu organs, unblocks joints, and treats qi stagnation in the meridians and collaterals.
Note: Lan Shi belongs to the Polygonum Lan category.
Indigo Leaf Juice
Derived from Polygonum tinctorium.
Taste: bitter, sweet. Nature: cold. Applied to the "five centers" (palms, soles, and chest), it stops irritability and restlessness, kills various drug poisons, and resolves wild wolf tooth poison, She Wang poison, as well as Cinnabar (Zhusha) and Arsenic (Pishi) poisons. Someone suffering from spleen disease with vomiting... thus Indigo is regarded as... [Text fragment].
Ban Lan Gen (Isatis Root)
Refers to the root of Strobilanthes cusia (Ma Lan).
Taste and nature: bitter, cold. Treats blood stasis in women. (Bake the whole plant including roots, crush, and take one qian bi with wine.) Treats epidemic heat-toxin (Tianxing Redu). Puji Xiaodu Yin uses it to treat major... [Text fragment]. Epidemic heat-toxin causing mental restlessness and irritability: take one spoonful of Indigo Paste (Lan Dian), mix with one cup of fresh well water, and drink. For acute gan erosion of nose and mouth (severe ulceration), where death seems imminent within days: apply Indigo Paste thoroughly to the affected area, ten times daily and four times at night, until healed.
[General Discussion]
Although various indigos differ in morphology, their properties and tastes are not far apart; all can resolve toxins and clear heat. Only the leaves of Indigofera tinctoria (Mu Lan) seem slightly weaker in efficacy, while Indigo Seeds specifically select those from Polygonum tinctorium.
Qing Bu (Indigo-dyed cloth / Indigo products)
Resolves various external toxins. Treats epidemic toxic heat (Tianxing Fandu), pediatric fever with erysipelas (Dan Du): soak in well water, extract the juice, and drink. Mix the extracted juice with ginger juice to stop... [Text fragment]. Burn to ash and apply to chronic malignant sores that have not healed for years. Burn to ash and take with wine to treat cracked lips with sores and bad breath; combine with ointment for topical application. To prevent water entry into malignant sores, burn Qing Bu mixed with wax in a smoke tube for fumigation; the treated area does not rot when submerged. For ulcerated sores, use aged mugwort (Chen Ai) 5 qian, realgar (Xionghuang) 2 qian, roll Qing Bu into a large moxa cone, and ignite... [Text fragment].