There are two main varieties of mugwort leaves, one is mugwort leaves and the other is common mugwort leaves. Folium Artemisiae Argyi is mostly produced in Jiangbei, with wide and thick leaves and much fluff, which can be made into high-quality Folium Artemisiae Argyi. There are many common mugwort in Jiangnan, and the cashmere is hard. Its mugwort is inferior to mugwort and is inferior cashmere. According to qi zhou, "qi zhou was mourned in vain". Artemisia argyi is named after its origin. Li Shizhen's father, Li Yanwen, has a lot of research on mugwort. He wrote "Biography of mugwort", saying that mugwort was "produced in Yangshan, and made great contributions to treating diseases during the Dragon Boat Festival."

1, appearance:

From the appearance, mugwort is unusually tall, generally between 1.5-2.5 meters or even higher. In the pharmacognosy research and development of mugwort and mugwort published in Journal of Traditional Chinese Medicine, professors from South-Central University for Nationalities compared mugwort with mugwort from Nanyang, Anhui, Anguo, Beijing, Sichuan and Shaanxi. Moreover, mugwort leaves are thick, fluffy and big, often larger than the palm of an adult. The leaves are very thick, and when they are dry, they can be turned into velvet with a gentle rub. In other places, mugwort can be seen around the Dragon Boat Festival. The leaves are small, and the dry leaves are fragile and deslagging after being rubbed by hand, and the cashmere yield is low.

2, fragrance:

Artemisia argyi has a special fragrance, some like mint, but not all. The new leaves are fragrant and the old leaves are fragrant. This kind of fragrance is not available everywhere, so it can't be faked. In other places, after a period of time in the same field, it is boring.

3, the use effect:

Chen's moxibustion is warm and powerful, with strong penetration and deeper heat. In other places, moxibustion is either weak or burning.

4. Active ingredients:

The content of essential oil (main effective component) in Artemisia argyi leaves is about twice that in other areas. According to the quantitative analysis of Artemisia argyi and Artemisia ordosica by South China Institute of Botany, China Academy of Sciences, it was found that the mesophilic temperature of Artemisia argyi was 65438 0.06% in grass oil and only 0.54% in Artemisia ordosica. In addition, the contents of total flavonoids and Platycladus orientalis in Artemisia argyi were significantly higher than those in common Artemisia argyi. In addition, there are many trace elements, vitamins and chemicals that can cure diseases in Artemisia argyi leaves.

5. Combustion calorific value:

Ignite the moxa stick and put it at the same distance from the skin for fumigation and moxibustion. The thermal sensation of the moxa stick is much higher than that of ordinary moxa sticks, because the burning calorific value of the moxa stick produced by Zhou Qi can reach 18 139J/g, while the burning calorific value of the moxa stick in other areas is only 14000 J.