（《别录》有名未用）
【释名】菅根（《别录》）、土筋（同）。
【集解】《别录》曰∶地筋生泽中，根有毛。三月生，四月实白，三月三日采根。弘景
曰∶疑此即是白茅而小异也。藏器曰∶地筋如地黄，根叶并相似，而细多毛，生平泽，功用
亦同地黄，李邕方中用之。时珍曰∶此乃黄菅茅之根也，功与白茅根相同，详见白茅下。陈
藏器所说，别是一物，
【气味】甘，平，无毒。
【主治】益气止渴，除热在腹脐，利筋（《别录》）。根、苗、花，功与白茅同（时珍）。
（《拾遗》）
【校正】并入《拾遗》石芒、败芒箔。
【释名】杜荣（《尔雅》）、笆芒（《寰宇志》）、笆茅。
时珍曰∶芒，《尔雅》作 。今俗谓之笆茅，可以为篱笆故也。
【集解】藏器曰∶《尔雅》∶ ，杜荣。郭璞注云∶草似茅，皮可为绳索履 也。今东人
多以为箔。又曰∶石芒生高山，如芒而节短，江西呼为折草，六、七月生穗如荻。时珍曰∶
芒有二种，皆丛生，叶皆如茅而大，长四、五尺，甚快利，伤人如锋刃。七月抽长茎，开白
花成穗，如芦苇花者，芒也；五月抽短茎，开花如芒者，石芒也。并于花将放时剥其箨皮，
可为绳箔草履诸物，其茎穗可为扫帚也。
茎
【气味】甘，平，无毒。
【主治】人畜为虎野狼等伤，恐毒入内，取茎杂葛根浓煮汁服，亦生取汁服。（藏器）。煮
汁服，散血（时珍）。
败芒箔
【主治】产妇血满腹胀痛，血渴，恶露不尽，月闭，止好血，下恶血，去鬼气疰痛症结，
酒煮服之。亦烧末，酒下。弥久着烟者佳（藏器）。
(Recorded in *Bielu* as a substance with name but unutilized)
[Names] Jian Gen (from *Bielu*), Tu Jin (same meaning).
[Collection of Explanations] *Bielu* states: Di Jin grows in marshes, with hairy roots. It sprouts in the third lunar month, bears white fruit in the fourth, and the roots are harvested on the third day of the third month. Tao Hongjing says: I suspect this is actually Bai Mao (Imperata cylindrica), merely slightly different. Chen Cangqi says: Di Jin resembles Di Huang (Radix Rehmanniae Preparata); its roots and leaves are similar, but finer and hairier. It grows in flat marshes, and its efficacy is also the same as Di Huang; it is used in Li Yong's prescriptions. Li Shizhen says: This is actually the root of Huang Jian Mao (a type of Imperata). Its efficacy is the same as Bai Mao Gen (Rhizoma Imperatae Cylindricae); see details under Bai Mao. What Chen Cangqi described is a different substance.
[Flavor and Toxicity] Sweet, neutral, non-toxic.
[Main Indications] Tonifies Qi, relieves thirst, clears heat in the abdomen and umbilical region, benefits sinews (from *Bielu*). The roots, shoots, and flowers have the same efficacy as Bai Mao (Li Shizhen).
(From *Shiyi*)
[Correction] Merged into Shi Mang and Bai Mang Bo from *Shiyi*.
[Names] Du Rong (from *Erya*), Ba Mang (from *Huanyuzhi*), Ba Mao.
Li Shizhen says: "Mang" is written as "𦰩" in *Erya*. Currently, it is commonly called Ba Mao because it can be used for fences.
[Collection of Explanations] Chen Cangqi says: *Erya* records: "𦰩, Du Rong." Guo Pu's annotation states: The grass resembles Mao (Miscanthus or Imperata), and its bark can be made into ropes and shoes. People in the East often use it as mats. He also says: Shi Mang grows in high mountains, resembling Mang grass but with shorter nodes. In Jiangxi, it is called Zhe Cao. It produces ears like Di in the sixth and seventh months. Li Shizhen says: There are two types of Mang, both growing in clumps. The leaves resemble those of Mao but are larger, reaching four to five chi in length, very sharp, injuring people like blades. In the seventh lunar month, long stems emerge, bearing white flowers in spikes, resembling reed flowers; this is Mang. In the fifth lunar month, short stems emerge, bearing flowers like thorns; this is Shi Mang. When the flowers are about to bloom, peel off their sheaths (husks) to make ropes, mats, straw sandals, etc. The stems and ears can be used to make brooms.
Stems
[Flavor and Toxicity] Sweet, neutral, non-toxic.
[Main Indications] For injuries to humans or livestock caused by tigers, wild wolves, etc., fearing toxin entry, take the stems mixed with Ge Gen (Puerariae Radix), boil them thickly to extract juice, and drink it. Alternatively, extract fresh juice directly (Chen Cangqi). Drinking the boiled juice disperses blood stasis (Li Shizhen).
Bai Mang Bo
[Main Indications] For postpartum abdominal distension and pain due to blood accumulation, blood-thirst, incomplete expulsion of lochia, amenorrhea, stopping the flow of good blood, expelling bad blood, removing ghost qi, zhu pain, and pathological masses. Decoct with wine and take. Alternatively, burn to ash, take with wine. Those that have been aged and smoked for a long time are superior (Chen Cangqi).