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FOC | Family List | FOC Vol. 9 | Rosaceae | Potentilla

51. Potentilla saundersiana Royle, Ill. Bot. Himal. Mts. 1: 207. 1835.

钉柱委陵菜 ding zhu wei ling cai

Herbs perennial. Roots robust, terete, rarely slender. Flowering stems erect or ascending, rarely low and tufted, 10–20 cm tall, together with petioles white tomentose and pilose. Radical leaves 2–5 cm including petiole; stipules brown, membranous, abaxially white villous or glabrescent; leaf blade subpinnately or palmately 3–7(or 8)-foliolate; leaflets sessile, adaxially green or grayish green, oblong-obovate, rarely broadly obovate, 0.5–2 cm × 4–10 mm, abaxially densely white tomentose, appressed pilose on veins, adaxially sparsely appressed pilose or densely appressed sericeous, base cuneate, margin slightly obtusely or acutely many incised serrate, rarely lobed to parted, apex obtuse, rarely acute; cauline leaves 1 or 2; stipules green, ovate or ovate-lanceolate, herbaceous, abaxially white tomentose and pilose, margin usually entire, apex acute or acuminate; leaf blade 3–5-foliolate; leaflets resembling those of radical leaves. Inflorescence terminal, laxly cymose, 1(or 2)- or many flowered. Flowers 1–1.4 cm in diam.; pedicel 1–3 cm, white tomentose. Sepals triangular-ovate or triangular-lanceolate; epicalyx segments lanceolate or elliptic, shorter than or nearly equaling sepals, abaxially white tomentose and pilose, apex acute or 1–3(–5)-fid. Petals yellow, obovate, slightly longer than or ca. 2 × as long as sepals, apex emarginate. Style subterminal, base inconspicuously thickened; stigma slightly dilated. Achenes smooth. Fl. and fr. Jun–Aug.

Alpine thickets and meadows, gravel fields; 2600--5200 m. Gansu, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Bhutan, India, Nepal, Sikkim].

1 Inflorescence 1(or 2)-flowered.   51d var. caespitosa
+ Inflorescence a many-flowered cyme.   (2)
2 (1) Radical leaves subpinnately (3–)5–7(or 8)-foliolate.   51c var. subpinnata
+ Radical leaves palmately 3–5-foliolate.   (3)
3 (2) Leaflets adaxially green, sparsely appressed pilose; epicalyx segments shorter than or nearly equaling sepals, apex acute.   51a var. saundersiana
+ Leaflets adaxially grayish green, densely appressed sericeous; epicalyx segments nearly equaling sepals, apex 2- or 3(–5)-fid.   51b var. jacquemontii

Lower Taxa


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Photos by The Biodiversity of the Hengduan Mountains Project  
  • Image/JPEG (David E. Boufford)
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  • Image/JPEG (David E. Boufford)
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