86. Potentilla flagellaris Willdenow ex Schlechtendal, Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 7: 291. 1816.
匐枝委陵菜 pu zhi wei ling cai
Potentilla reptans Linnaeus var. angustiloba Seringe.
Herbs perennial, stoloniferous. Roots tufted, slender. Stolons 8–60 cm, together with petioles appressed pubescent or pilose. Radical leaves 4–10 cm including petiole; stipules brown, membranous, abaxially sparsely hirsute; leaf blade palmately 5-foliolate; leaflets sessile, green on both surfaces, lanceolate, ovate-lanceolate, or oblong-elliptic, 1.5–3 × 0.7–1.5 cm, both surfaces sparsely appressed pubescent, later glabrescent or abaxially appressed pilose on veins, base broadly cuneate, margin irregularly acutely incised 3–6-serrate, sometimes 2-fid on outer 2 leaflets, apex acute or acuminate; stolon leaves resembling radical ones; stipules green, ovate-lanceolate, herbaceous, margin usually parted. Flowers solitary, opposite leaves, 1–1.5 cm in diam.; pedicel 1.5–4 cm, pubescent. Sepals ovate-oblong, apex acute; epicalyx segments slightly shorter than sepals, abaxially pubescent and pilose. Petals yellow, slightly longer than sepals, apex emarginate or rounded. Style subterminal, thin at base; stigma slightly dilated. Mature achenes cylindric-ovoid, bullate. Fl. and fr. May–Sep.
Thinned forests, damp meadows, lakes shores, river banks; 300--2100 m. Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Shandong, Shanxi [Korea, Mongolia, Russia].
This species is used for food and forage.