川滇委陵菜 chuan dian wei ling cai

Potentilla rockiana Melchior.

Herbs perennial. Flowering stems 5–35 cm tall, densely yellow pubescent and yellow villous. Radical leaves 4–20 cm including petiole; auricles of stipules free, apex acute; petiole densely pubescent and villous; leaf blade interrupted pinnate, rarely non-interrupted, with 8–15 pairs of leaflets; leaflets elliptic or obovate, 0.8–1.7 × 0.5–1.2 cm, abaxially densely pubescent, sericeous on veins, margin subobtusely or acutely serrate; cauline leaves 2 or 3; auricles of stipules herbaceous; leaf blade resembling radical ones but pairs of leaflets fewer higher up stem. Inflorescence cymose. Flowers 1–1.8 cm in diam.; pedicel densely villous and glandular hairy. Sepals abaxially villous and glandular hairy; epicalyx segments shorter than sepals, margin entire or shallowly 2- or 3-serrate. Petals yellow, broadly obovate, apex rounded or emarginate. Style lateral, nearly 2 × as long as ovary; stigma slightly dilated. Achenes slightly rugose. Fl. and fr. May–Aug. 2n = 28*.

Forests, grassy mountain slopes; 2800--3900 m. Sichuan, Yunnan.