藏沙蒿 zang sha hao

Artemisia salsoloides Willdenow var. wellbyi (Hemsley & H. Pearson) Ostenfeld & Paulsen; Oligosporus wellbyi (Hemsley & H. Pearson) Poljakov.

Subshrubs, 15-28 cm tall, with a thick stock, densely gray or yellowish and sericeous-pubescent. Lower and middle stem leaves: petiole 5-20 mm. Lower leaves ovate or elliptic-ovate, 1.5-2.5 × 0.8-1.8 cm, 2-pinnatisect; segments 3 or 4 pairs; lobules linear or linear-lanceolate, 4-5 × 0.5-2 mm. Middle stem leaves elliptic-ovate, 10-20 × 5-15 mm, 1(or 2)-pinnatisect; segments 3(or 4) pairs; lobules 4-10(-18) × 1-1.5 mm. Uppermost leaves and leaflike bracts 3- or 5-sect or entire. Synflorescence a lax, narrow panicle. Capitula initially dense, later lax. Involucre ovoid or subglobose, 2.5-3.5(-4) mm in diam.; phyllaries puberulent or glabrescent. Marginal female florets 5-15. Disk florets 8-16, bisexual. Achene obovoid. Fl. and fr. Jul-Nov.

Riverbanks, lakeshores, hills, rocky slopes, alpine steppes, alpine meadows; 3600-5300 m. Xizang [N India].