\r芦根\ph278.bmp\r，旧不载所出州土，今在处有之，生下湿陂泽中。其状都似竹，
而叶抱茎生，无枝；花
白作穗若茅花；根亦若竹根而节疏；二月、八月采日干用之。当汲取水底甘辛者。其露出及
浮水中者，并不堪用。谨按《尔雅》谓芦根为葭华。郭璞云∶芦苇也。苇即芦之成者。谓蒹
为（与廉同），似 萑（音桓）而细长，高数尺，江东人呼为 。 （与荻同）者谓 （他
敢切）
，为 （五患切）。 似苇而小中实，江东人呼为乌。 （音丘）者
或谓之荻，荻至秋坚成，即谓之萑。其华皆名苕（徒雕切），其萌笋皆名 （音绻）。若然所
谓
芦苇，通一物也。所谓 ，今作蒹者是也。所谓 ，人以当薪爨者是也。今人罕能别蒹 与
芦苇。又北人以苇与芦为二物，水旁下湿所生者，皆名苇；其细不及指，人家池圃所植者，
为芦。其秆差大深碧色者，谓之碧芦，亦难得。然则本草所用芦，今北地谓苇者，皆可通用
也。古方多单用。葛洪疗呕哕，切根水煮，顿服一升。《必效方》，以童子小便煮服，不过
三升瘥。其蓬茸主卒得霍乱气息危急者，取一把煮浓汁，顿服二升，瘥。兼主鱼蟹中毒，服
之尤佳。其笋味小苦，堪食。法如竹笋，但极冷耳。
芦根，古代本草未记载其产地，如今各地都有生长，生于低湿的池塘沼泽之中。它的形状都像竹子，但叶子抱着茎干生长，没有分枝；花是白色的，呈穗状，像茅草的花；根也像竹根，但节间稀疏；二月和八月采收，晒干后使用。应当汲取水底甘甜辛香的芦根。那些露出水面或漂浮在水中的芦根，都不堪使用。
谨按《尔雅》记载，芦根被称为“葭华”。郭璞说：“芦苇。”苇就是长成后的芦。称“蒹”（与“廉”同音），类似“萑”（音桓）而细长，高达数尺，江东人称之为“䔩”（与“荻”同义）。称“䔩”（他敢切音）为“𦸼”（五患切音）。“𦸼”类似苇但较小且中间实心，江东人称之为“乌”。（音丘）者有时称为荻，荻到了秋天变硬成熟，就称为“萑”。它们的花都称为“苕”（徒雕切音），它们的嫩芽笋都称为“𦸼”（音绻）。如果这样说来，所谓的芦苇，其实是同一种植物。所谓“蒹”，现在写作“蒹”的就是这种。所谓“䔩”，人们把它当作柴火做饭用的。如今的人很少能分辨“蒹”与芦苇的区别。另外北方人把苇和芦分为两物，生长在水边低湿处的，都叫苇；其中细如手指、人家池塘园圃中种植的，叫芦。其中秆稍大、颜色深碧绿的，称为“碧芦”，也很难得。既然如此，那么本草中所用的芦，如今北方人称为苇的，都可以通用。古方中多单独使用。葛洪治疗呕吐呃逆，将根切碎用水煮，一次服用一升。《必效方》，用童子小便煮服，不超过三升即可痊愈。芦根的茸毛主治突然患霍乱气息危急者，取一把煮成浓汁，一次服用二升，即可痊愈。兼治鱼蟹中毒，服用效果更佳。芦笋味道微苦，可以食用。做法如同竹笋，只是性质极寒罢了。
Lugen (Reed Rhizome), the ancient materia medica did not record its place of origin; it is now found everywhere, growing in low and damp marshes. Its appearance resembles bamboo, but the leaves embrace the stem and grow without branches; the flowers are white and spike-like, resembling those of cogon grass; the rhizome also resembles that of bamboo but with sparse nodes; it is harvested in February and August and dried in the sun for use. One should extract the sweet and pungent rhizomes from the bottom of the water. Those exposed to air or floating on the surface are unsuitable for use.
According to the "Erya" (Classic of Names), Lugen is referred to as "Jiahua". Guo Pu stated: "Lu and Wei." Wei refers to mature Lu. The term "Jian" (homophonous with Lian) describes a plant similar to "Huan" (pronounced Huan) but slender and tall, reaching several chi in height; people in the Jiangdong region call it "Di" (synonymous with Di). The term "Di" (pronounced 'ta gan qie') refers to "Xian" (pronounced 'wu huan qie'). "Xian" resembles Wei but is smaller and solid inside; people in the Jiangdong region call it "Wu". The plant pronounced "Qiu" is sometimes called Di; when Di hardens and matures in autumn, it is called "Huan". Their flowers are all named "Tiao" (pronounced 'tu diao qie'), and their sprouts/shoots are all named "Juan" (pronounced 'quan'). Thus, what is commonly referred to as Lu and Wei is essentially one species. What is called "Jian" corresponds to the character "Jian" used today. What is called "Di" is used by people as firewood for cooking. Nowadays, few people can distinguish between Jian and Lu/Wei. Furthermore, people in the North consider Wei and Lu as two different things: plants growing in wet areas near water are all called Wei; among them, those thin as a finger and planted in household ponds or gardens are called Lu. Among these, those with slightly thicker stems and deep green color are called "Bi Lu," which are also rare. Therefore, the Lu used in the Materia Medica, which is currently called Wei in the North, can be used interchangeably. Ancient prescriptions often used it alone. Ge Hong treated vomiting and hiccup by slicing the root, boiling it in water, and taking one sheng in one dose. The "Bixiao Fang" (Effective Formula Book) prescribed boiling it with urine from an uncircumcised boy and taking no more than three sheng to achieve recovery. The downy parts of the reed head treat sudden cases of cholera with critical breathing difficulties; take one handful, boil into a concentrated decoction, and take two sheng in one dose to recover. It also treats poisoning from fish and crabs, which yields excellent results. The shoots have a slightly bitter taste and are edible. The preparation method is similar to bamboo shoots, but they are extremely cold in nature.