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Dinghushan | Family List | Compositae | Artemisia

Artemisia annua L.

黄花蒿

Description from Flora of China

Artemisia annua f. macrocephala Pampanini; A. chamomilla C. Winkler; A. stewartii C. B. Clarke; A. wadei Edgeworth.

Herbs, annual, 70-160(-200) cm tall, much branched, sparsely puberulent, soon glabrous, strongly aromatic. Leaves gland-dotted. Lowermost stem leaves: leaf blade ovate or triangular-ovate, 3-7 × 2-6 cm, 3(or 4)-pinnatipartite; segments 5-8(-10) pairs. Middle stem leaves: petiole 1-2 cm; leaf blade 2(or 3)-pinnatisect or pectinatisect; lobules deeply serrate to pectinate; teeth triangular, 1-2 × ca. 0.5 mm; rachis narrowly winged, sparsely serrate or not; midvein prominent adaxially. Uppermost leaves and leaflike bracts 1(or 2)-pinnatipartite. Synflorescence a panicle to 15 × 8 cm, produced from most nodes to form broad, conical compound panicle. Capitula many, shortly pedunculate, closely subtended by whorl of bracteoles, nodding. Involucre globose, 1.5-2.5 mm in diam.; phyllaries broad and scarious, ± glabrous. Marginal female florets 10-18. Disk florets 10-30, bisexual; corolla dark yellow or yellow. Achenes ellipsoid-ovoid. Fl. and fr. Aug-Oct. 2n = 18.

Artemisia annua contains, among other essential oils, artemisinin (青蒿素 qing hao su). It is well known in Traditional Chinese Medicine for its anti-inflammatory, antifebrile, and hemostatic properties, and artemisinin has become widely valued as an effective treatment for strains of Plasmodium resistant to other anti-malarial drugs.

Hills, waysides, wastelands, outer forest margins, steppes, forest steppes, dry floodlands, terraces, semidesert steppes, rocky slopes, roadsides, saline soils; 2000-3700 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xinjiang, Xizang, Yunnan, Zhejiang [widely distributed in N Africa, Asia, Europe, and North America].

生活型: 草本

栽培植物: 野生

特征: 一年生、直立、多分枝草本;花黄色

花期: 6--9

生境: 生于湿润草地上

用途: 全草药用,茎、叶利尿、健胃,治疟疾及小儿夏季热、高热不退等;种子下气、开胃、止盗汗;可作酒曲原 料和绿肥

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 双子叶植物纲

中文别名: 臭蒿


 

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