黄花合头菊 huang hua he tou ju

Soroseris chrysocephala C. Shih, Acta Phytotax. Sin. 31: 449. 1993.

Herbs 3-5 cm tall, perennial, rosulate, acaulescent. Taproot slender. Rosette leaves ovate to ovate-orbicular, 2-8 × 0.8-1.5 cm, green or tinged purplish red, glabrous or ± villous, base abruptly contracted into a basally widened winged or unwinged petiole-like portion with or without a few pairs of small lateral lobes, margin dentate, apex obtuse, acute, or rounded. Synflorescence flat conical, 2-3 cm in diam., with few to some capitula. Capitula with 5 florets. Involucre narrowly cylindric, 10-12 × ca. 3 mm. Phyllaries 5, lanceolate, abaxially sparsely pilose, apex rounded. Florets yellow, ligule 8-9 mm. Achene brown, obconical, ca. 3 mm, compressed. Pappus 6-7 mm. Fl. Jul. 2n = 16*.

● Scree slopes; 4100-4700 m. Qinghai, E Xizang (Qamdo).