atractylodes macrocephala is pronounced bái zhú.

Introduction of Atractylodes macrocephala Koidz.

Atractylodes macrocephala Koidz. is a perennial herb of Atractylodes in Compositae. The underground roots are thick, slightly fist-shaped and grayish yellow in appearance; The stem is erect and hairless, with leaves in the middle and lower part, oblanceolate, oblong or oval; The leaves are papery and green on both sides.

The flower heads grow alone at the top of stems and branches, and the small flowers are purplish red; Achenes are inverted cone-shaped, densely covered with a layer of white long straight hairs, and the crested bristles are feathery and dirty white. The flowering and fruiting period is from August to October.

Alias of Atractylodes macrocephala:

Erya by Cirsium japonicum and Cirsium japonicum, Benjing by Shu, Wupu Materia Medica by Cirsium japonicum and Cirsium japonicum, Guangya by Alpinia officinarum, Bielu by Shanlian, Shennongjing by Shanjing, Vegetation in the South by Qilijia, and Atractylodes macrocephala in winter.

this species also has many commercial names, such as the shape of the rhizome of crude drugs, or the crane-shaped technique, the golden thread technique, or the leg of Atractylodes macrocephala, such as emblem technique, and the season when the rhizome is unearthed, such as winter technique. The quality of skill (Zhejiang in diving) is better.

Origin and growth habits of Atractylodes macrocephala:

1. Origin.

It is distributed in Jiangsu, Zhejiang, Fujian, Jiangxi, Anhui, Sichuan, Hubei, Hunan and other places in China. It is cultivated, but it is wild in Jiangxi, Hunan, Zhejiang and Sichuan, and most of it grows in hillside grassland and hillside forest. The type specimens were collected from Japanese cultivated types. But there is no wild type in Japan. Japanese Atractylodes macrocephala was introduced from China in the 18th century for crude drug cultivation.

2. Growth habits.

Atractylodes macrocephala likes cool and mild climate, and is cold-resistant and drought-tolerant, so it is forbidden to accumulate water. The optimum growth temperature is 15 ~ 22℃, and it grows rapidly at 24 ~ 29℃. The optimum temperature for rhizome growth is 26 ~ 28℃. The optimum temperature for seed germination is 25 ~ 3℃.

The requirement for soil is low, so it is advisable to choose sandy loam with high, dry and slightly inclined slope, deep soil layer, loose and fertile soil and good drainage, and avoid continuous cropping, and it is best to plant it on newly reclaimed land. The planted land must be re-planted at least five years, otherwise it will be easy to get sick. Gramineae is the best crop in the previous crop, and it can't be rotated with cruciferous and solanaceae crops which are prone to white silk disease.