There are four types of mugwort, which are better known historically, namely: northern mugwort, sea mugwort, herb, Qi mugwort. Herb is good.

The leaves of mugwort are dried and crushed to get "moxa velvet", which can be used for moxibustion and can be used as raw material for "Indian mud". In addition, the whole grass for insecticidal pesticides or smoke for room disinfection, insecticide. Young shoots and seedlings for vegetables. Ai dried and crushed into wormwood powder, but also can do natural plant dyes. Folk believe that the wormwood also wards off evil spirits, the role of attracting a hundred blessings, during the Dragon Boat Festival hanging wormwood on the door, followed the custom, and then into the Dragon Boat Festival custom.

Plant Culture

The culture of mugwort has a long history, as early as the era of the Book of Songs, mugwort has been a very important plant for people's livelihood. There is also a legend about the origin of Ai.

According to legend, there is a famous doctor named Xiao Ai beside the King of Wu, one day, he had diarrhea for many days after lying down in the army tent, in order to cure the critical condition of the generals, he was sick out of the clinic, but accidentally tripped by the mosquito repellent weed fire, was burned by the fire. But when he gave the general a consultation, he unexpectedly found himself cured of his illness, while his body had several more scars.

So he had a sudden idea to use nameless weeds to light fire to cauterize the corresponding position of the patient's body, and all the soldiers who had been cauterized got better, and the king praised Xiao Ai, who did not dare to take credit for it, and replied, "This is the work of the weeds." King Wu declared to the whole army: "The weeds have no name, from now on to Xiao Ai, the name of Artemisia absinthium."

Because of the greater utility of Ai, the ancients gave it a lot of reputation, such as honoring the old man as "Ai", describing the young and beautiful women as "less Ai", "Poetry" said that the maintenance of "Paul Ai ", the "Records of the Grand Historian" to the peace and quiet is also written "Ai An", etc., can be seen on the ancient love of Ai.