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It grows in wheat fields everywhere, especially abundant in the countryside of Lin'an County. It is harvested in April. Its stems twine around the wheat stalks. The leaves resemble those of *Shenxian Duizuo Cao* (Ficus tikoua / "Immortal Sitting Opposite Grass") but are slightly pointed, with a slight fuzziness on the surface. The leaves grow opposite each other at the nodes. The stems are slender, and the nodes are slightly purplish. Leaves that are small are superior; leaves that are large have weak medicinal efficacy.

Zhang's Hereditary Formula for Bruises and Trauma: Take one qian (approx. 3.7g) of the dried herb, decoct it in wine, and take orally.

It is also known as Tian Denglong (Heavenly Lantern) and Heshang Tou Cao (Monk's Head Grass). *Baimao Teng* (White-haired Vine, *Ageratum conyzoides*) grows on the walls of houses. Both its stems and leaves are covered with white hairs. It flowers in August and September with lotus-root-colored blossoms. The fruits are initially green and turn red when ripe. Birds and sparrows delight in eating them. *Baicao Jing* (Mirror of Hundred Herbs) records: *Baimao Teng* mostly grows on the walls of gardens and houses. It sprouts in spring and withers in winter. The fruits are small like beans and soft, red like coral. After the frost, the leaves wither, leaving only the red fruits hanging densely on the walls, commonly called Maoteng Guo (Hairy Vine Fruit). Harvesting the vines, drying them, and soaking them in wine is said to eliminate rheumatic pain in the joints.

It stops bloody strangury (hematuria), treats malaria, and hernia. Dripping the juice into the ear stops purulent discharge without causing dryness. When included in prescriptions, it prevents swelling and toxins from spreading or enlarging. To treat [illness omitted in original], consume the essence of boiled beef. It treats edema and abdominal pain caused by roundworm accumulation in children. *Caizao Zhi* (Record of Herb Collection) states: Its nature is hot; it invigorates blood, chases wind, generates blood, and is effective in treating *Guijian Yu* (Arrow-shaped Branch, *Euonymus alatus*).

Yang's Verified Formula for Wind Pain: Two liang (approx. 60g) of Sanghuang (Phellinus linteus), two liang of *Baimao Teng*, chopped finely. Decoct in six jin (approx. 3kg) of Shaoxing original jar wine until three incense sticks have burned. Take once daily.

Early-stage Jaundice: *Baicao Jing*: Equal parts of *Baimao Teng*, *Shenxian Duizuo Cao*, Da Yinchen (Artemisia capillaris), Sanbaicao (Houttuynia cordata), and Cheqiancao (Plantago asiatica). Decoct in white wine and take orally.

Da Qi Pao (Severe Abdominal Distension/Water Swelling): Bu Yao Liang Fang (Excellent Prescription Without Medicine): Use *Baimao Teng*, taken orally with Huigui Jiu (wine without dregs/impurities).

Hezi Cao (Box Grass) is also commonly called He'er Teng. It prefers growing by water banks and roadsides. The seedlings are three to four chi (approx. 1-1.3 meters) high. The leaves resemble Boshi grass (likely a typo for a specific plant, translated literally), and the flowers have small fluffy balls. It bears fruit in May, forming a ball. Inside the ball are two black seeds. They are green when fresh and black when old/mature. Each seed resembles a tortoise shell pattern, hence also called Gui'er Cao (Tortoise Child Grass). Alchemists use its juice to fix mercury and sulfur. The roots can fix yin and yang substances. *Baicao Jing* records: Yuanyang Mubie (Mandarin Duck Calabash), also known as Shuili Zhi (Water Lychee) and He'er Teng. The leaves are long and pointed with serrated edges, growing by the water, creeping. It fruits in autumn, resembling a lychee, green with thorns. The shell has a central fracture line, splitting into two halves that fit together, hiding two black seeds inside, smaller than Mubie Zi (Calabar Bean). Sun's Alchemical Formula: Hezi Cao. The seeds and leaves have slight toxicity. It creeps along banks, has pointed leaves and white flowers. The seeds contain two pieces like a box. *Bencao Gangmu* attaches it after Ziteng, but the descriptions of its flowers, fruits, and root shapes are not very detailed.

Hezi Cao has slight toxicity. It mainly treats gu poison (parasitic disease) and snake bites. Applying the crushed herb topically to sores leads to immediate healing.

Early-stage Gan Ji (Infantile Malnutrition/Indigestion): *Baicao Jing* says: Three qian of Yuanyang Mubie, decocted and taken orally, will cure it.

Zhao Xuemin's Note: This herb seems to be what I know as Yuzhi Zi (which is Tianqi Cao / *Solanum lyratum*). Recently, people rarely use it. Wu Shi, following Cheng Shi's new work, claimed Yuzhi Zi was unavailable in recent times, completely unaware that it is indeed Tianqi Cao. Because the general public does not use it, folk healers have substituted it with other names.