20. Potentilla aristata Soják, Candollea. 43: 159. 1988.
多对小叶委陵菜 xi lie xiao ye wei ling cai
Potentilla microphylla D. Don var. achilleifolia J. D. Hooker; P. microphylla var. multijuga T. T. Yü & C. L. Li.
Herbs perennial, low, often mat forming. Roots several, slender, terete. Flowering stems 2–3 cm tall, appressed white pilose. Radical leaves 1.5–4 cm including petiole; auricles of stipules free, apex acute to acuminate; petiole short, appressed pilose; leaf blade pinnate with 13–16 pairs of leaflets; terminal leaflet oblong to narrowly obovate, ca. 2 × 3 mm, pinnately lobed to parted with 8–12 segments; segments narrowly lanceolate, abaxially sericeous-pilose, later glabrescent, or both surfaces glabrous; cauline leaf 1, small; leaf blade simple or pinnate with 4 or 5(–9) pairs of leaflets. Flower 1(or 2), 1–1.5 mm in diam.; pedicel 5–10 mm, appressed pilose. Sepals triangular-ovate; epicalyx segments lanceolate to oblong, margin entire or deeply 2-lobed. Petals yellow, elliptic to obovate, apex rounded. Style lateral; stigma slightly dilated. Achenes not seen. Fl. and fr. Jun–Aug.
Forest margins, open places in thickets, alpine meadows, rocks on mountain slopes; 3600--4800 m. Xizang, Yunnan [Bhutan, Nepal, Sikkim].