Wormwood can also sterilize, especially those places where the skin itches.
If you don't know how to distinguish Qingming grass from wormwood, you can observe their appearance. Qingming grass is an annual or biennial herb with a height of 10-50cm. The stems are erect, tufted, unbranched or rarely branched, densely covered with white hairs, with alternate leaves, the lower and middle leaves are oblanceolate or spoon-shaped, the apex is small, the base gradually narrows, the stems extend downward, there are white hairs on both sides, there are many heads, and the top is umbrella-shaped; Involucre spherical, bell-shaped, 3-layer involucre, golden yellow; Flowers tubular yellow; Female flowers are around and bisexual flowers are in the center. Achenes are rectangular. The flowering period is from April to June, and the fruit ripening period is from August to September.
However, wormwood is a perennial herb or slightly semi-shrub-like, with strong fragrance, solitary or few stems, brown or grayish brown, slightly lignified at the base, hairy at the upper part and a few short branches. The leaves are thick and papery, with grayish white pubescence on them, and the base is usually smaller than jia ye or jia ye. The upper leaves and bracts are pinnately cleft, the head is elliptic, the corolla is tubular or cup-shaped, there are glandular points outside, the anthers are narrowly linear, and the style is nearly equal to or slightly longer than the corolla. Achenes are ovoid or oblong, and the flowering and fruiting period is September 9- 10/0.