柳叶蒿 liu ye hao

Artemisia integrifolia f. bothnhofii Pampanini; A. integrifolia f. suzievii Pampanini; A. integrifolia f. transiens Pampanini; A. komarovii Poljakov; A. mongolica (Fischer ex Besser) Nakai var. interposita Kitagawa; A. quadriauriculata F. H. Chen; A. vulgaris Linnaeus var. integrifolia (Linnaeus) Ledebour.

Herbs, perennial, 50-120 cm tall, arachnoid puberulent. Leaves abaxially densely tomentose, adaxially incanous puberulent or glabrescent, sessile. Lowermost leaves ovate or elliptic, rarely broadly ovate, margin few serrate. Middle stem leaves elliptic, elliptic-lanceolate, or linear-lanceolate, 4-7 × 1.5-2.5(-3) cm, base attenuate, margin 1-3-serrate, apex acuminate. Uppermost leaves elliptic or lanceolate, entire, rarely few serrate. Synflorescence a narrow panicle. Involucre elliptic or oblong, (2.5-)3-4 mm in diam.; phyllaries sparsely puberulent. Marginal female florets 10-15. Disk florets 20-30, bisexual. Achenes obovoid or oblong. Fl. and fr. Aug-Oct. 2n = 18, 36.

Forest margins, roadsides, riverbanks, steppes, meadows, forest steppes, shrublands; low to middle elevations. Hebei, Heilongjiang, Jilin, Liaoning, E Nei Mongol [Korea, Mongolia, Russia].