Artemisia annua

Artemisia annua

(Chinese medicine and plant Atlas)

Another name is Ascaris lumbricoides.

[source] the inflorescence and leaf of Artemisia annua in Compositae.

[plant morphology] Artemisia annua

Subshrubs perennial, up to 70 cm tall. The roots are thick and slightly twisted. The base of stem is woody with 8-30 branches. Leaves alternate, small, 2-pinnate; leaflets narrowly linear, apex obtuse, pubescent, grayish green. The inflorescence is long oval or elliptic, 1.5-4 mm long, integrated into a compound raceme; the involucre is imbricate arranged, the outer bracts are obtuse triangular, thicker, gradually inward, oval or elliptic, and gradually thinner; the central part of the bracts is yellowish green to brownish green, with edges and white edges. Inflorescence with 3-6 florets, all tubular flowers, about 1.5 mm long, corolla 5-lobed; stamen 5, anther Union; pistil 1, ovary oblong. Achenes small, glabrous. The flowering period is from mid August to mid September.

It grows on sandy soil. It is cultivated in China.

[collection] generally, it is harvested when the buds are about to bloom from August to September, and the most suitable time is when the appearance changes from green to yellow green, the top changes from sharp to long to round and blunt, the hand is not sticky, and the hand is loose and the brush is scattered. If the heating time of flower buds is different, they should be harvested in batches. The flower buds should be dried immediately in the hot Kang, flue-cured tobacco room, drying room, etc., or spread out in an open and ventilated place to dry in the shade, and should not be exposed to the sun or piled up.

[functions and indications] Chinese medicine plant Atlas: "it's a kind of insect repellent. It has special effect on Ascaris lumbricoides, but less effect on Enterobius vermicularis. "

[usage and dosage] Currently, it is mainly made into QuSuan syrup, QuSuan tablets and other proprietary medicines, which can be taken according to the prescribed dosage.

Chinese PinYin : Shan Dao Nian Hao