味甘，寒，无毒。主气癃，止痛，利水道小便，除湿痹。久服，轻身、耐老。一名当道
（《御览》有云∶一名牛舌，《大观本》作牛遗，黑字）。生平泽。
《名医》曰∶一名 ，一名虾蟆衣，一名牛遗，一名胜 ，生真定邱陵阪道中，五月
五日采，阴干。
案∶《说文》云∶ ，一曰 。一名马 ，其实如李，令人宜子，《周书》所说，《广
雅》云∶当道，马 也；《尔雅》云∶ ，马 ；马 ，车前。郭璞云∶今车前草，大叶
长穗，好生道边，江东呼为虾蟆衣。又 ，牛 。孙炎云∶车前，一名牛边，《毛诗》云∶
采采 ，《传》云∶ ，马 ；马 ，车前也。陆玑云∶马 ，一名车前，一名当道。
喜在牛迹中生，故曰车前当道也，今药中车前子是也，幽州人谓之牛舌草。
味辛。主邪气，辟毒疫温鬼，强志。主淋露（《御览》引云∶主气不足。《大观本》作黑
字）。久服，不梦寤魇寐（《御览》引云∶一名密青。一名∶轻身，致神仙，《大观本》俱作
黑字）。生山谷。
《名医》曰∶一名蜜香，生永昌。
（旧作薯蓣，《御览》作署豫，是）
味甘，温。主伤中，补虚羸，除寒热邪气，补中，益气力，长肌肉。长肌肉。久服，耳
目聪明，轻身、不饥、延年。一名山芋，生山谷。
《吴普》曰∶薯蓣，一名诸署（《御览》作署豫，作诸署，《艺文类聚》亦作诸）。齐越
，名山芋，一名修脆，一名儿草（《御览》引云，秦楚，名玉延，齐越，名山芋；郑赵，名
山芋，一名玉延）。神农∶甘，小温；桐君、雷公∶甘（御引作苦），无毒。或生临朐钟山。
始生，赤茎细蔓；五月，华白；七月，实青黄，八月，熟落，根中白，皮黄，类芋（《御览》
引云∶二月、八月采根。恶甘遂）。
《名医》曰∶秦楚名玉延，郑越名土诸。生嵩高，二月、八月采根，曝干。
案∶《广雅》云∶玉延，薯豫，署蓣也。《北山经》云∶景山草多薯豫。郭璞云∶根似羊
蹄，可食，今江南单呼为薯，语有轻重耳；《范子计然》云∶薯豫，本出三辅，白色者，善；
《本草衍义》云∶山药，上一字犯宋英庙讳，下一字曰蓣，唐代宗名豫，故改下一字为
味甘，性寒，无毒。主治气机阻滞导致的小便不通，缓解疼痛，通利水道和小便，祛除体内的湿邪和痹症。长期服用，能使身体轻盈、延缓衰老。又名当道（《太平御览》记载：又名牛舌，《大观本草》作“牛遗”，原文为缺字）。生长在沼泽地带。
《名医别录》记载：又名[缺字]，又名虾蟆衣，又名牛遗，又名胜[缺字]，生长在真定郡的丘陵山坡道路旁，五月五日采集，阴干。
考证：《说文解字》记载：[缺字]，另一种说法是[缺字]。又名马舄，它的果实像李子，能使人适宜生育（多子），这是《周书》所说的内容。《广雅》记载：当道，就是马舄；《尔雅》记载：[缺字]，就是马舄；马舄，即车前草。郭璞注释说：现在的车前草，叶片宽大，穗长，喜欢生长在路边，江东地区称为虾蟆衣。另外，[缺字]，就是牛[缺字]。孙炎注释说：车前，又名牛边，《毛诗》中说：采采[缺字]，《毛传》解释：[缺字]，就是马舄；马舄，就是车前草。陆玑注释说：马舄，又名车前，又名当道。喜欢在牛蹄印中生长，所以叫车前、当道。现在药用中的车前子就是这种植物，幽州人称之为牛舌草。
味辛。主治邪气，辟除毒疫温病鬼祟，增强意志。主治淋证漏下（《太平御览》引用说：主治气不足。《大观本草》作缺字）。长期服用，不会做噩梦或睡眠惊魇（《太平御览》引用说：又名密青。又名：轻身，致神仙，《大观本草》均作缺字）。生长在山谷中。
《名医别录》记载：又名蜜香，生长在永昌。
（旧版写作薯蓣，《太平御览》写作署豫，是正确的）
味甘，性温。主治内伤，补益虚损羸弱，祛除寒热邪气，补益中气，益气力，促进肌肉生长。长期服用，使耳目聪明，身体轻盈，不感到饥饿，延年益寿。又名山芋，生长在山谷中。
《吴普本草》记载：薯蓣，又名诸署（《太平御览》写作署豫，写作诸署，《艺文类聚》也写作诸）。齐国和越地，名叫山芋，又名修脆，又名儿草（《太平御览》引用说：秦楚地区，名叫玉延，齐越地区，名叫山芋；郑赵地区，名叫山芋，又名玉延）。神农氏认为：味甘，性小温；桐君、雷公认为：味甘（《太平御览》引用作苦），无毒。有的生长在临朐钟山。刚生出时，茎为红色，藤蔓细小；五月，开白花；七月，果实青黄色，八月，成熟掉落，根部内部白色，外皮黄色，类似芋头（《太平御览》引用说：二月、八月采集根部。畏甘遂）。
《名医别录》记载：秦楚地区名叫玉延，郑越地区名叫土诸。生长在嵩高山，二月、八月采集根部，晒干。
考证：《广雅》记载：玉延，就是薯豫，也就是署蓣。《北山经》记载：景山的草多为薯豫。郭璞注释说：根部像羊蹄，可以食用，现在江南地区单呼为薯，只是语音有轻重之分罢了；《范子计然》记载：薯豫，原本出产于三辅地区，白色的品质好；《本草衍义》记载：山药，上一个字犯了宋英宗的名讳，下一个字曰蓣，唐代宗名豫，所以改下一个字为
Flavor is sweet, nature is cold, non-toxic. It primarily treats Qi stagnation leading to urinary retention (Qi Long), relieves pain, promotes urination and water passage, and expels dampness and Bi syndrome (Bi Syndrome). Long-term consumption lightens the body and delays aging. Also known as Dangdao (According to *Taiping Yulan*: also known as Niushé; *Daguan Bencao* writes "Niuyi", original text has missing characters). Grows in marshes.
*Mingyi Bie Lu* records: Also known as [missing character], also known as Xiamayi, also known as Niuyi, also known as Sheng [missing character]. Grows in the hills, slopes, and roads of Zhending Commandery. Collected on the fifth day of the fifth lunar month, dried in the shade.
Textual Research: *Shuowen Jiezi* states: [missing character], another name is [missing character]. Also known as Ma Xi, its fruit resembles plums, and it facilitates fertility (making one suitable for having children), as mentioned in *Zhou Shu*. *Guangya* states: Dangdao is Ma Xi; *Erya* states: [missing character] is Ma Xi; Ma Xi is Cheqian (Plantago seed). Guo Pu comments: The current Cheqian grass has large leaves and long spikes, likes to grow by the roadside, and is called Xiamayi in Jiangdong. Additionally, [missing character] is Niu [missing character]. Sun Yan comments: Cheqian is also known as Niubian. *Mao Shi* says: "Gathering gathering [missing character]", *Mao Zhuan* explains: [missing character] is Ma Xi; Ma Xi is Cheqian grass. Lu Ji comments: Ma Xi is also known as Cheqian, also known as Dangdao. It likes to grow in cow tracks, hence the name Cheqian and Dangdao. The Cheqian Zi used in medicine today is this plant; people in Youzhou call it Niushé Cao.
Flavor is pungent. It primarily treats pathogenic factors, wards off toxic epidemics, warm diseases, and evil spirits, and strengthens the will. It primarily treats Lin syndrome (Lin Syndrome) and leakage (as cited in *Taiping Yulan*: primarily treats Qi deficiency; *Daguan Bencao* has missing characters). Long-term consumption prevents nightmares and sleep terrors (as cited in *Taiping Yulan*: also known as Miqing. Another name: Lightens the body, leads to immortality; *Daguan Bencao* all have missing characters). Grows in valleys.
*Mingyi Bie Lu* records: Also known as Mixiang, grows in Yongchang.
(Old version wrote Shuyu, *Taiping Yulan* writes Shuyu, which is correct)
Flavor is sweet, nature is warm. It primarily treats internal injury, tonifies deficiency and emaciation, eliminates cold-heat pathogenic factors, tonifies the Middle Jiao (Middle Burner), benefits Qi and strength, and promotes muscle growth. Long-term consumption makes ears and eyes clear, lightens the body, prevents hunger, and extends longevity. Also known as Shanyu, grows in valleys.
*Wu Pu Bencao* records: Shuyu is also known as Zhu Shu (*Taiping Yulan* writes Shuyu, writes Zhu Shu; *Yiwen Leiju* also writes Zhu). In Qi and Yue regions, it is named Shanyu, also known as Xiucui, also known as Ercao (as cited in *Taiping Yulan*: In Qin and Chu regions, it is named Yuyan; in Qi and Yue regions, it is named Shanyu; in Zheng and Zhao regions, it is named Shanyu, also known as Yuyan). Shennong: Sweet flavor, slightly warm; Tongjun and Leigong: Sweet flavor (cited in *Taiping Yulan* as bitter), non-toxic. Some grow in Zhongshan, Linqiu. When first sprouting, stems are red with fine vines; in May, flowers are white; in July, fruits are greenish-yellow; in August, they mature and fall; roots are white inside, yellow skin, resembling taro (as cited in *Taiping Yulan*: Roots collected in February and August. Averse to Kansui).
*Mingyi Bie Lu* records: In Qin and Chu regions, it is named Yuyan; in Zheng and Yue regions, it is named Tuzhu. Grows in Songgao Mountain, roots collected in February and August, sun-dried.
Textual Research: *Guangya* states: Yuyan is Shuyu, which is Shuyu. *Beishan Jing* states: Jing Mountain's grass is mostly Shuyu. Guo Pu comments: Roots resemble sheep's trotters, edible; currently in Jiangnan, it is simply called Shu, just a difference in pronunciation weight; *Fanzi Jiran* states: Shuyu originally came from the Three Fu region, white ones are superior; *Bencao Yan Yi* states: Shan Yao, the first character offended the naming taboo of Emperor Yingzong of Song, the second character is Yu; Emperor Daizong of Tang was named Yu, so the second character was changed to