蛔蒿 hui hao

Artemisia cina O. Berg & C. F. Schmidt, Darstell. Beschr. Off. Gew. 4: t. 29. 1863.

Herbs, perennial, 20-40(-70) cm tall, gray arachnoid pubescent or glabrescent. Lowermost leaves ovate or ovate-oblong, 3-6 × 1.5-4.5 cm, 2(or 3)-pinnatisect; segments 3 or 4 pairs; lobules narrowly linear-lanceolate, 2-5 × 0.3-0.8 mm, mucronulate apically. Middle stem and uppermost leaves pinnatisect; leaflike bracts narrowly linear. Synflorescence a narrow panicle. Capitula ± dense. Involucre ellipsoid-ovoid or ovoid-oblong, ca. 2 mm in diam.; phyllaries glabrescent. Florets 3-5. Achenes ovoid. Fl. and fr. Aug-Oct.

Cultivated. N Gansu, N Shaanxi, Xinjiang [Kazakhstan].

Seriphidium cinum is a source of α-santonin, used as an anthelmintic drug.