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[Zizhen Tan (Purple Sandalwood)]
Salty in taste, slightly cold in nature. Primarily treats malignant toxins and wind toxins.
Tao Hongjing stated: Common people rub it and apply it to various swellings caused by wind toxins, which is also effective. However, it is not as effective as Qingmuxiang (Indigofera tinctoria root). It also stops bleeding from traumatic injuries and can be used to treat strangury.
The annotation of Xinxiu Bencao notes: This substance originates from the Panpan Kingdom near Kunlun. Although it does not grow in Central China, it is widely available among the people. Ministers Yu Xi et al. respectfully followed the statement of Ri Hua Zi: Purple sandalwood trees... [text missing/corrupted in source] ... originate from Hainan. In addition to its original functions, it treats heart and abdominal pain, cholera, sudden evil qi attacks, ghostly qi, kills parasites, and expels toxins. Waitai Miyao records that its hemostatic and analgesic effects are excellent. For wrapping bandages on sores, old cloth or silk should be used, neither too loose nor too tight, just like tying a belt. Qianjin Fang: Treats all kinds of swellings. Crush purple sandalwood finely, mix with strong vinegar, and apply to the swollen area. Mei Shi Fang: Treats traumatic bleeding. Quickly scrape powder from authentic purple sandalwood and apply to the wound.

[Wujiu Genpi (Root Bark of Sapium sebiferum)]
Bitter in taste, slightly warm in nature, toxic. Primarily treats acute water retention, masses, and accumulations. Grows in the plains and marshes south of the mountains.
The annotation of Xinxiu Bencao notes: The tree grows several ren high, leaves resemble those of pear or apricot. Flowers are yellowish-white. Fruits are black. Currently referring to Chen Cangqi's Bencao, it states that Wujiu leaves are suitable for dyeing soap. Seeds are pressed for oil, applied to hair to turn it black or white, and burns very brightly as lamp oil. Taking one he of it causes diarrhea, expelling damp-water from the yin regions. (Originally attached to Tang Ben) Ministers Yu Xi et al. respectfully followed the statement of Ri Hua Zi: Wujiu root bark is cool in nature. Treats head wind, unblocks urination and defecation. Must be roasted over slow fire until the oily juice is exhausted and it turns yellow and dry before use. Doumen Fang: Treats constipation. Take a piece of Wujiu wood about one cun long, split it, decoct in water to obtain half a small cup of liquid, take it, and bowel movement will immediately clear. Do not consume too much. Its efficacy is miraculous, and it can also extract water. Yan Yi states: Wujiu leaves resemble small apricot leaves but are thinner and paler green. Fruits ripen in August and September, initially green then turning black, splitting into three valves. Oil is extracted from seeds for lamps and hair dyeing.

[Nanteng (Southern Vine / Dinggong Teng)]
Pungent in taste, warm in nature, non-toxic. Primarily treats wind-blood disorders, tonifies against senility, raises yang, strengthens waist and legs, removes bi-syndrome, whitens hair (note: text says "bian bai", context implies anti-aging/hair care), expels cold qi, and dispels wind pathogens. Can be decocted in water for drinking or soaked in wine. Used in winter. Grows on southern trees, hence named Nanteng. Stems resemble horse whips with nodes, purple-brown in color. Also known as Dinggong Teng. Grows in mountain valleys of the South. Nan Shi records: Xie Shuqian was from Yanmen. His mother fell ill; at night, he kowtowed and prayed in the courtyard, hearing a voice from the sky say: If you obtain Dinggong Teng, she will recover. He consulted doctors and materia medica but found no record. Going to Yidu Mountains, he saw an old man felling trees, who said it was Dinggong Teng for treating wind diseases. He bowed, wept, and obtained the herb and the method for soaking it in wine. After learning, the old man disappeared. His mother's illness was cured. (Now attached here).
Tu Jing states: Nanteng is Dinggong Teng. Grows in mountain valleys of the South, currently produced in Quanzhou and Rongzhou. Grows on southern trees, hence the name. Vines resemble horse whips with nodes, purple-brown, leaves resemble apricot leaves but pointed. Harvest time is unspecified. Below this, there is another entry for Qianjinteng: Those growing in northern regions have roots as thick as fingers, black as lacquer. Those growing in southern soils are yellow-red like Xixin (Asarum). There is also [missing character] Tengzi, growing in the forests of southern Guangnan. The wood resembles Tongcao vines, taking three years to mature, purple-black. Also known as Xiangdou. Current physicians rarely use it, so it is merely appended to this category.
Chen Cangqi states: The taste and odor are pungent and strong; it can also be ground and taken orally. It prevents aging and whitens hair, originating from Lantian. Harvested in August, dried, and used.