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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Artemisia

68. Artemisia leucophylla C. B. Clarke, Compos. Ind. 162. 1876.

白叶蒿 bai ye hao

Artemisia vulgaris Linnaeus var. leucophylla Turczaninow ex Ledebour, Fl. Ross. 2: 586. 1845, nom. illeg. superfl.; A. leucophylla f. luxurians Pampanini; A. leucophylla f. minuta Pampanini; A. leucophylla var. pusilla Pampanini; A. leucophylla f. simplicifolia Pampanini; A. leucophylla f. tenuisecta (Regel) Pampanini; A. mongolica (Fischer ex Besser) Nakai var. krascheninnikovii Pampanini, p.p.; A. mongolica var. leucophylla (C. B. Clarke) W. Wang & H. T. Ho; A. obscura Pampanini var. rigida Pampanini; A. vulgaris var. kamtschatica Besser; A. vulgaris var. minor Ledebour; A. vulgaris var. tenuisecta Regel.

Herbs, perennial, 35-70 cm tall, arachnoid pubescent; rhizome creeping, with short branches from upper parts. Leaves abaxially densely gray arachnoid tomentose, adaxially sparsely arachnoid pubescent and gland-dotted. Lower and middle stem leaves: petiole 1-2 cm; lowermost leaf blades elliptic or ovate-elliptic in outline, 5-8 × 4-7 cm, 1- or 2-pinnatipartite or pinnatisect; segments 3(or 4) pairs, variously rhombic, elliptic, or oblong; lobules minute, 5-10 × 4-5 mm. Middle and upper stem leaves smaller, less divided, blade pinnatisect; segments 2 or 3(or 4) pairs; lobes linear-lanceolate, linear, elliptic-lanceolate, or lanceolate, 10-15 × 2-3 mm. Leaflike bracts 3-5-sect or entire. Synflorescence a ± dense narrowly conical panicle. Involucre oblong or ovoid, (2-)2.5-3.5(-4) mm in diam.; phyllaries greenish or violet, arachnoid pubescent. Marginal female florets 5-8. Disk florets 6-13, bisexual. Achenes obovoid. Fl. and fr. Jul-Oct. 2n = 18.

Slopes, roadsides, forest margins, grasslands, riverbanks, lakeshores; low elevations to 4000 m. Gansu, Guizhou, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Korea, Mongolia, Russia (W Siberia)].


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