（宋《图经》）
【集解】颂曰∶生邓州顺阳县内乡山谷。叶似青蒿，茎青紫色，花作小穗，微黄，根似
细辛。七月采根苗用。
时珍曰∶江浙亦有之。外家采制丹砂、硫黄。
根苗
【气味】甘、苦，微寒，无毒。
【主治】肿毒风热（苏颂）。
【附方】新一。
男妇吐血后，胸膈虚热∶阴地厥、紫河车、贯众、甘草各半两。每服三钱，水煎服。（《圣
济总录》）
（《别录》下品）
【释名】齐头蒿。
时珍曰∶《尔雅》∶蔚，牡 ，蒿之无子者。则牡之名以此也。诸蒿叶皆尖，此蒿叶独
而秃，故有齐头之名。
【集解】《别录》曰∶牡蒿，生田野。五月、八月采。
弘景曰∶方药不复用。
恭曰∶齐头蒿也，所在有之。叶似防风，细薄而无光泽。
生苗，其叶扁而本狭，末 有秃歧。嫩时可茹。鹿食九草，
其一也。秋开细黄花，结实大如车前实，而内子微细不可见，故人以为无子也。
苗
【气味】苦、微甘，温，无毒。
【主治】充肌肤，益气，令人暴肥。不可久服，血脉满盛（《别录》）。擂汁服，治阴肿
（时珍）。
【附方】新一。
疟疾寒热∶齐头蒿根、滴滴金根各一把。擂生酒一钟，未发前服。以滓敷寸口，男左女
右
（宋《图经》）
【集解】颂曰∶生筠州山冈上。二月生苗，独茎，高一尺。叶似艾叶，圆而长，背有白
毛，面青。五月采苗用。
时珍曰∶陈嘉谟《本草蒙筌》以此为蕲艾，谬矣。
苗
【气味】微苦，有小毒。
【主治】解风劳，治身体痛。与甘草同煎服，不入众药用（苏颂）。
(Song Dynasty *Tu Jing Ben Cao*)
[Collected Explanations] Song said: It grows in the valleys of Neixiang, Shunyang County, Dengzhou. The leaves resemble those of *Artemisia annua* (Qinghao), the stems are bluish-purple, the flowers form small spikes and are slightly yellow, and the roots resemble *Asari Radix et Rhizoma* (Xixin). The roots and shoots are harvested in July for use.
Shizhen said: It is also found in the Jiangsu and Zhejiang regions. People from other places harvest it to refine cinnabar and sulfur.
Roots and Shoots
[Aroma and Flavor] Sweet, bitter, slightly cold, non-toxic.
[Indications] Swelling, toxicity, wind-heat (Su Song).
[Attached Prescriptions] One new prescription.
For men and women experiencing deficiency heat in the chest and diaphragm after hematemesis: *Hemerocallis citrina* Bulbus (Yindijue), placenta (Ziheche), *Cyathulae Radix* (Guanzhong), and *Glycyrrhizae Radix et Rhizoma* (Gancao), each half liang. Take three qian per dose, decocted in water and taken orally. (*Shengji Zonglu*)
(*Ben Cao Jing Bie Lu*, Lower Grade)
[Names] Qitouhao.
Shizhen said: *Erya* states: "Wei is Mu Hao, which refers to mugwort that does not produce seeds." Thus, the name "Mu" originates from this. The leaves of various muggorts are pointed, but the leaves of this mugwort are uniquely flat-topped and bald, hence the name "Qitou" (Flat-headed).
[Collected Explanations] *Bie Lu* states: Mu Hao grows in fields. It is harvested in May and August.
Hongjing said: It is no longer used in medical prescriptions.
Gong said: It is Qitouhao, found everywhere. The leaves resemble those of *Saposhnikoviae Radix* (Fangfeng), being thin and lacking luster.
The young shoots have leaves that are flat with a narrow base and flat-tipped branches at the ends. They can be eaten when tender. One of the nine plants eaten by deer is this one. In autumn, it opens small yellow flowers; the fruit is as large as *Plantaginis Semen* (Cheqianshi), but the seeds inside are too minute to be seen, so people believe it has no seeds.
Shoots
[Aroma and Flavor] Bitter, slightly sweet, warm, non-toxic.
[Indications] Fleshes the body, benefits Qi, causes sudden obesity. It should not be taken for a long time, as it may cause fullness and excess in the blood vessels (*Bie Lu*). Taken as a pounded juice, it treats genital swelling (Shizhen).
[Attached Prescriptions] One new prescription.
For malaria with alternating chills and fever: Roots of Qitouhao and Didingjin, one handful each. Pound them with one cup of raw wine and take before the onset of symptoms. Apply the dregs to the Cun Kou pulse point, on the left hand for men and the right hand for women.
(Song Dynasty *Tu Jing Ben Cao*)
[Collected Explanations] Song said: It grows on hillsides in Yunzhou. Shoots emerge in February, with a single stem about one chi high. The leaves resemble *Artemisiae Argyi Folium* (Aiye), being round and long, with white hairs on the back and green on the front. The shoots are harvested in May for use.
Shizhen said: Chen Jiamo considered this to be Qiai in his *Bencao Mengquan*, which is erroneous.
Shoots
[Aroma and Flavor] Slightly bitter, slightly toxic.
[Indications] Resolves wind-lao (chronic deficiency due to wind), treats body pain. Decocted and taken with Gancao, it is not used in combination with other herbs (Su Song).