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[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.