味苦微寒。主惊痫。寒热邪气。除热。金创。疽痔鼠 。恶疮头疡。一名蛇衔。生山
谷。（合当作含）
高冈湿隰。细叶黄花。青含蛇口。紫折龙牙。伤连断指。恶剪积瘕。涩酸竟命。知时灭
瑕。
苏颂曰。生土石上或下湿地。陶弘景曰。用细叶有黄花者。李时珍曰。根名女青。叶似
龙牙
而小。背紫色。异苑。昔有田父。见一蛇被伤。一蛇含此草着疮上。经日蛇愈。抱朴子。蛇
衔膏连已断之指。直指方。研敷身面恶癣根断。雷 论。勿用有柏尖叶者。号竟命草。其味
涩酸。令人吐血。速服知时子可解。淮南子。抑微灭瑕。
味苦寒。主伤寒。寒热。热发温疟鬼毒。胸中痰结。吐逆。一名互草。生山谷。（今
名常山）
药以山名。俨尊北岳。横节圆茎。白花青萼。就燥阳 。流湿阴浊。鸡骨浮黄。功专已
疟。
李时珍曰。恒山乃北岳名。岂此药始产于此欤。苏恭曰。茎圆有节。二月生白花青萼。
其草
暴燥。色青白堪用。若遇阴便黑烂郁坏。易。水流湿。火就燥。陶弘景曰。细实黄者。谓之
鸡骨。用之最胜。苏颂曰。此药为治疟之最要者。
味辛平。主疟及咳逆寒热。腹中症坚痞结。积聚邪气。蛊毒鬼注。生川谷。（即恒山
苗）
漆何望蜀。互草新苗。转丸萦结。倾酒醇调。蛊驱毒解。瘴御气消。蜜香凉沁。甘饮相
招。
后汉书传。敕岑彭曰。既平陇。复望蜀。陶弘景曰。采得常山苗。萦结作丸。得时燥者
佳。
雷论。以酒浸一宿。曝干用。李时珍曰。岭南瘴气。寒热所感。邪在营卫。欲除根本。非
此
药不可。苏颂曰。天台有一种土常山苗。味甘。人用为饮。又名蜜香草。性凉益人。非此苗
也。
[Shennong Bencao Jing Zan · Shehan]
Taste: Bitter. Nature: Slightly Cold. Indications: Mainly treats Jingxian (convulsions and spasms caused by fright or epilepsy). Treats pathogenic factors of cold and heat. Clears internal heat. Treats Jinchuang (traumatic injuries caused by metal weapons). Treats Ju (carbuncles), hemorrhoids, Shulou (scrofula/lymph node tuberculosis), Echuang (malignant sores), and Touyang (ulcers on the head). Also known as She Xian. Grows in mountain valleys. ("He" should be read as "Han").
Grows on high ridges and in damp lowlands. Leaves are fine; flowers are yellow. [Legend has it that] green herbs can hold a snake's mouth; purple stems resemble broken dragon teeth. It can reconnect severed fingers. Eliminates malignant Jianji and abdominal masses (Zhengjia). Its taste is astringent and sour; it is called Jingming Cao. Knowing when to harvest removes defects.
Su Song stated: It grows on earth and rocks or in wetlands below. Tao Hongjing stated: Use the variety with fine leaves and yellow flowers. Li Shizhen stated: The root is named Nuqing. The leaves resemble Longya but are smaller, with a purple back. *Yi Yuan* records: Once, an old farmer saw one snake injured and another snake applying this herb to the wound; after a few days, the snake healed. *Baopuzi* records: She Xian Gao can reconnect already severed fingers. *Zhizhi Fang* records: Grinding and applying externally can cure stubborn tinea capitis and corporis. Lei Xiao's processing treatise states: Do not use those with cypress-tip-like leaves; they are called Jingming Cao, have an astringent and sour taste, cause hematemesis, and can be detoxified by taking Zhishi Zi quickly. There is also a mention of "suppressing the subtle and eliminating flaws" in *Huainanzi*.
[Shennong Bencao Jing Zan · Hengshan]
Taste: Bitter. Nature: Cold. Indications: Mainly treats Shanghan (cold damage). Treats alternating chills and fever. Treats Wen Nue (warm malaria) with heat onset, and Guidu (diseases attributed to ghosts/toxicity affecting the mind/body). Treats phlegm accumulation in the chest. Treats vomiting and rebellious qi. Also known as Hu Cao. Grows in mountain valleys. (Currently known as Changshan / Dichroa Root).
The drug is named after the mountain, solemn like the Northern Peak (Hengshan). Stems are horizontal with nodes, round, bearing white flowers and green calyces. It directs towards dry yang and flows into damp yin turbidity. Chicken bone floats yellow; its function is specifically to cure malaria.
Li Shizhen stated: Hengshan is the name of the Northern Peak; did this drug originate there? Su Gong stated: The stem is round with nodes; in February, it produces white flowers and green calyces. When dried by exposure, it turns blue-white and is usable. If exposed to rain, it turns black, rots, and spoils. The *I Ching* states: Water flows to dampness; fire goes to dryness. Tao Hongjing stated: Those with small yellow fruits are called Jigu (Chicken Bone); they are the most effective for use. Su Song stated: This drug is the most important remedy for treating malaria.
[Shennong Bencao Jing Zan · Shuqi]
Taste: Pungent. Nature: Neutral. Indications: Mainly treats Nue (malaria), cough with rebellious qi, and alternating chills and fever. Treats abdominal Zhengjian Pijie (hard abdominal masses and nodules), accumulated pathogenic factors, Guduo (gu poison), and Guizhu (contagious diseases/parasitic infections). Grows in river valleys. (It is the young shoot of Hengshan / Dichroa febrifuga).
Why does Shuqi look toward Shu? The new shoots of Hu Cao. Rolled pills entangle; poured wine blends purely. Drives away gu poison and resolves toxicity. Defeats miasma and dissipates qi. Honey fragrance cools; sweet drinks attract each other.
*Book of Later Han* biography records: The emperor instructed Cen Peng saying, "Having pacified Long, now look toward Shu." Tao Hongjing stated: After harvesting Changshan shoots, tie them into knots for pills; those dried at the right time are best. Lei Xiao's processing treatise states: Soak in wine for one night, then sun-dry for use. Li Shizhen stated: In Lingnan, miasma is contracted through chills and fever; the pathogen resides in Ying and Wei. To eradicate the root cause, no drug is more suitable than this. Su Song stated: There is a local variety of Changshan shoot in Tiantai Mountain that tastes sweet; people use it as a beverage, also called Mixiang Cao. Its nature is cool and beneficial to humans, but it is not this specific shoot (Shuqi).