狭裂白蒿 xia lie bai hao

Herbs, perennial, 25-60 cm tall, densely arachnoid tomentose, or glabrescent or sparsely tomentose later. Lower and middle stem leaves: petiole 5-40 mm; leaf blade suborbicular or broadly ovate, 3-4 × 3-4 cm, abaxially densely arachnoid tomentose, adaxially white gland-dotted and sparsely pubescent, 1(or 2)-pinnatisect; segments (1 or)2 or 3 pairs, linear or linear-lanceolate, 10-20(-40) × 1-2(-4) mm. Uppermost leaves 3-5-lobed; bracts leaflike 3-lobed or entire. Synflorescence a narrow panicle. Involucre cylindric or cylindric-ovoid, 2-2.5(-3) mm in diam.; phyllaries densely gray arachnoid tomentose. Marginal female florets 3-6. Disk florets 6-10, bisexual. Achenes oblong or oblong-ovoid. Fl. and fr. Jul-Oct.

● Roadsides, slopes, waste areas; low elevations to 2300 m. E Gansu, W Hebei, S Nei Mongol, Ningxia, NE Qinghai, N Shaanxi, Shanxi.