Oligosporus demissus (Krascheninnikov) Poljakov.

Herbs, annual or biennial, 5-20 cm, much branched; lower branches procumbent, yellowish pubescent or glabrescent. Lower stem leaves: petiole 0.5-1 cm; leaf blade oblong or ovate, 1-1.5 × 0.8-1.3 cm, 2-pinnatisect; segments 2 or 3; lobules narrowly linear-lanceolate or elliptic-lanceolate, 3-5 × ca. 1 mm, apex mucronulate. Middle and upper stem leaves pinnatisect. Leaflike bracts linear, entire. Synflorescence a narrow, spikelike panicle. Involucre ovoid, 1.5-2 mm in diam.; phyllaries puberulent, sometimes glabrescent. Marginal female florets 10-19. Disk florets 3-8, male. Achenes obovoid. Fl. and fr. Jul-Sep. 2n = 18.

Valleys, slopes, roadsides, grasslands, rocky hills; 2600-4800 m. Gansu, Nei Mongol, Qinghai, W Sichuan, Xinjiang, Xizang [Afghanistan, India, Tajikistan].