Ai (scientific name: Artemisia argyi? Rafer. Et Van), a perennial herb of Artemisia in Compositae, has a strong fragrance. The taproot is obvious, slightly thicker and longer, with a diameter of 1.5 cm and many lateral roots. Stems solitary or few, 80- 150(-250) cm tall.

The leaves are thick and papery, with grayish white pubescence and white glandular spots and small pits. The head is oval, 2.5-3.5 mm in diameter, sessile or subsessile. Achenes oblong or oblong. The flowering and fruiting period is July -65438+ 10.

Distributed in Mongolia, North Korea, Russian (Far East) and China; It is widely distributed in China, almost all over the country except in extremely dry and cold areas. Japan has cultivation. Born in wasteland, roadside, riverside and hillside in middle and low altitude areas, it is also found in forest grassland and grassland areas, and local areas are the dominant species of plant communities. ?

As a medicine, the whole herb has the functions of warming channels, eliminating dampness, dispelling cold, stopping bleeding, diminishing inflammation, relieving asthma, relieving cough, preventing miscarriage and resisting allergy. Artemisia argyi leaves are dried and mashed to make "moxa wool", which can be made into moxa sticks for moxibustion and can also be used as raw materials for "inkpad". In addition, whole grass is used as an insecticidal pesticide or smoked tobacco as a room disinfection and insecticide. Buds and seedlings are used as vegetables.

Reference to the above content: Baidu Encyclopedia-Artemisia argyi