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What are the effects and functions of Artemisia argyi?
Efficacy and function of Folium Artemisiae Argyi: relieving asthma, relieving cough and eliminating phlegm.

Artemisia argyi is produced in Qichun County, Hubei Province. Qichun County is long and narrow, shaped like a sail, high in the north and low in the south. It is mountainous in the north, hilly in the middle and plain in the south. The highest point in the territory is the main peak of Yun Dan in Qingshi Town, with an altitude of1244.438+0m; The lowest point is the Longfeng Temple Gate of Bali Lake Farm, with an altitude of12m.

Qichun is a subtropical continental monsoon climate with four distinct seasons, abundant rainfall and mild climate. The average frost-free period over the years is 249. 1 day, the precipitation is1341.7mm, the sunshine hours are 2025.8 hours, and the temperature is 16.8 degrees, which is suitable for planting mugwort leaves.

Extended data:

Artemisia argyi refers to wormwood growing in Qichun County, Hubei Province, which is named after its variety and origin. Compared with common mugwort, mugwort has natural advantages.

First of all, Artemisia argyi leaves are round, wide and thick, with nine lobular tips; The plant of Artemisia argyi is tall and can reach more than 2 meters; The common Artemisia argyi plant is about 1 m high, with thin leaves and sparse hair. This is the uniqueness of mugwort in appearance and shape.

Secondly, Artemisia argyi has a strong smell, high content of effective drugs, strong penetration and more volatile oil in plants. The oil yield of its essential oil is 1.06%, and that of other mugwort is 0.54%, which is twice as high. Easy drug absorption.

Qi zhou is not only the origin of mugwort, but also the hometown of the great doctor Li Shizhen. He made an in-depth study of Chinese medicine Artemisia argyi. I have collected samples of mugwort leaves on Qilin Mountain many times and planted them at home.

Li Shizhen described in Compendium of Materia Medica: "In modern times, only foreigners in the Tang Dynasty called it Bei Ai, and the four Ming people called it Hai Ai. From the beginning, it was called mourning, and Qichun won, and Manchu made the world heavy. " (Translation: In modern times, only Tangyang's so-called North Ai and Siming's so-called Hai Ai, since Chenghua, Qichun has been the winner, a specialty and the most important salary for Ai. ")

From then on, Artemisia argyi became famous all over the world.

Baidu encyclopedia-mugwort