味辛，大热，有大毒。主痈肿，风痹历节，腰脚疼冷，寒热鼠 。又堕胎。
此即附子边角之大者，脱取之，昔时不用，比来医家以疗香港脚多验。凡此三建，俗中乃
是同根，而《本经》分生三
处，当各有所宜故也。方云∶少室天雄，朗陵乌头，皆称本土，今则无别矣。少室山连嵩高，
朗陵县属豫州，汝南郡今
在北国。
〔谨案〕侧子，只是乌头下共附子、天雄同生，小者侧子，与附子皆非正生，谓
从乌头旁出也。以小者为侧
子，大者为附子，今称附子角为侧子，理必不然。若当阳以下，江左及山南嵩高、齐、鲁间，
附子时复有角如大豆许。
夔州以上剑南所出者，附子之角，曾微黍粟，持此为用，诚亦难充。比来京下，皆用细附子
有效，未尝取角，若然，方
须八角附子，应言八角侧子，言取角用，不近人情也。
味辛，温，有大毒。主贼风在皮肤中淫痛，温疟，恶毒，诸痹。邪气，鬼疰，蛊毒。一
名玉支。生太行山谷及淮南
山。三月采花，阴干。
今近道诸山皆有之。花黄似鹿葱，羊误食其叶，踯躅而死，故以为名。不可近眼。
〔谨
案
于栀子注中云∶是踯躅，子名玉支，非也。花亦不似鹿葱，正似旋 花黄色也。
味苦，温、微温，有毒。主五脏邪气，心腹寒热，羸瘦，如疟状，发作有时，诸关节风
湿痹痛。疗久风湿走四肢，脚弱。一名芫草，一名卑共。生太山川谷。三月三日采叶，阴干。
好者出彭城，今近道亦有。茎叶状如莽草而细软耳，取用之皆连细茎。方用甚稀，惟以
合疗风酒散用之。
【侧子】
味辛，性大热，有大毒。主治痈肿、风痹、历节病（关节疼痛游走不定）、腰脚冷痛、寒热往来及鼠瘘（淋巴结核）。此外还有堕胎的作用。
这种药材就是附子边缘部分较大的块根，将其剥离取用。过去并不使用，近来医生用它治疗脚气病（香港脚）多有效验。凡是被称为“三建”的这三种药，民间认为它们同出一根，但《神农本草经》将它们分为生长在三处不同的地方，应当是因为各有所宜的缘故。医方中说：少室山的天雄，朗陵的乌头，都强调其产地，如今则没有区别了。少室山连接嵩高山，朗陵县属于豫州，汝南郡现在位于北国。
【考证】侧子，只是乌头下面与附子、天雄共同生长的，小的叫侧子，与附子都不是正生的主根，而是从乌头旁边长出来的。以小的为侧子，大的为附子，现在称附子的边角为侧子，道理上必然不对。如果在长江以南以下地区，江东及山南、嵩山、齐地、鲁地之间，附子偶尔会有像大豆大小的边角。夔州以上剑南所产的附子，其边角曾经微小如黍米粟粒，拿这个来使用，确实难以胜任。近来京城里，都用细小的附子才有效，从未取用边角，如果这样，方剂中需要八角附子，就应该说八角侧子，说是取边角使用，不合情理。
【羊踯躅】
味辛，性温，有大毒。主治贼风在皮肤中引起的游走性疼痛、温疟、恶毒疮疡、各种痹证。能祛除邪气、鬼疰（一种传染病或精神异常疾病）、蛊毒。又名玉支。生长在太行山谷及淮南山区。三月采集花朵，阴干。
如今邻近道路的各种山上都有。花黄色像鹿葱，羊误食其叶子，会踯躅而死，所以以此命名。不可让眼睛靠近它。
【考证】在栀子条目下注释说：这是踯躅，它的果实叫玉支，这是错误的。花也不像鹿葱，正像是旋花的黄色。
【茵芋】
味苦，性温、微温，有毒。主治五脏邪气、心腹寒热、身体消瘦、像疟疾一样的症状、发作有定时、各种关节风湿痹痛。治疗久患风湿流注四肢、脚部软弱无力。又名芫草，又名卑共。生长在太山川谷。三月三日采集叶子，阴干。
好的产自彭城，如今邻近道路也有。茎叶形状像莽草但更细软，取用时都连着细茎。方剂中使用很少，只用来配合制作治风酒的散剂。
[Cezi]
Pungent in flavor, excessively hot in nature, highly toxic. It primarily treats carbuncles and swellings, wind-bi syndrome, Li-jie disease (migratory joint pain), cold pain in the waist and legs, alternating chills and fever, and Shu-lou (scrofula/lymphatic tuberculosis). It also induces abortion.
This refers to the larger marginal parts of the Fuzi (Aconiti Lateralis Radix Praeparata) tuber, which are separated and used. In the past, it was not used; however, in recent times, physicians have found it effective for treating Hong-kang-jiao (Gouty arthritis/Podagra). Regarding the "Three Jian" (San Jian), folk belief holds that they originate from the same root, whereas the *Shennong Bencao Jing* classifies them as growing in three different locations, likely because each has its specific indications. Medical formulas state: Tianxiong from Shaoshi Mountain and Wutou from Langling are both noted for their local origins, but nowadays there is no distinction. Shaoshi Mountain connects to Songgao Mountain, Langling County belongs to Yuzhou, and Runan Commandery is currently located in the Northern Kingdom.
[Commentary] Cezi merely grows beneath the Wutou (Aconiti Radix) alongside Fuzi and Tianxiong. The smaller ones are called Cezi. Like Fuzi, they are not the main tubers but grow laterally from the Wutou. The small ones are Cezi, and the large ones are Fuzi. To call the marginal corners of Fuzi as Cezi is logically incorrect. In regions south of the Yangtze, Jiangzuo, Shannan, Songgao, Qi, and Lu areas, Fuzi occasionally has marginal parts the size of soybeans. However, those produced in Jiannan north of Kuizhou have marginal parts so minute as millet grains; using these is indeed insufficient. Recently in the capital, fine Fuzi is used effectively, and the margins are never taken. If this is the case, if a formula requires eight-cornered Fuzi, it should be referred to as eight-cornered Cezi. Claiming that the margins are taken for use is unreasonable.
[Yangzhizhu]
Pungent in flavor, warm in nature, highly toxic. It primarily treats Zefeng (sudden wind pathogen) causing wandering pain in the skin, Wen-nue (warm malaria), malignant toxins, and various Bi syndromes. It expels evil qi, Guizhu (ghostly affliction/infectious disease), and Gu du (poisonous parasites). Also known as Yuzhi. It grows in the valleys of Taihang Mountains and the mountains of Huainan. The flowers are harvested in the third lunar month and dried in the shade.
It is now present in mountains near various routes. The flowers are yellow, resembling Luzhong (Narcissus tazetta var. chinensis); when sheep mistakenly eat its leaves, they die after staggering about, hence the name. Care must be taken not to let it come into contact with the eyes.
[Commentary] The annotation under Zhizi states that this is Zhizhu and its fruit is named Yuzhi, which is incorrect. The flower does not resemble Luzhong but rather resembles the yellow flowers of Convolvulus (Xuanhua).
[Yinyu]
Bitter in flavor, warm and slightly warm in nature, toxic. It primarily treats evil qi in the five zang organs, cold and heat in the heart and abdomen, emaciation, symptoms resembling malaria with regular paroxysms, and various rheumatic Bi pain in joints. It treats chronic wind-dampness flowing to the four limbs and weakness of the feet. Also known as Yuancǎo and Begong. It grows in the valleys of Mount Tai. The leaves are harvested on the third day of the third lunar month and dried in the shade.
The best quality comes from Pengcheng, though it is also available near current routes. The stems and leaves resemble Mangcao (Dichroa febrifuga) but are finer and softer; when harvested, they are used with the fine stems attached. It is rarely used in formulas, only combined in powders for wind-treating medicinal wines.