西北沼委陵菜 xi bei zhao wei ling cai

Potentilla salesoviana Stephan, Mém. Soc. Imp. Naturalistes Moscou 2: 6. 1808; Comarum salesovii (Stephan ex Willdenow) Bunge; Farinopsis salesoviana (Stephan) Chrtek & Soják; P. salesovii Stephan ex Willdenow.

Herbs perennial, woody based, 30–100 cm tall. Flowering stems erect, branched, red-brown, villous, farinaceous when young. Leaves 4.5–9.5 cm including petiole; stipules mostly adnate to petiole, scarious, abaxially farinaceous and villous, apex long caudate; petiole 1–1.5 cm; leaf blade imparipinnate, 7–11-foliolate, or 3-foliolate or simple on uppermost leaves; rachis brownish red, villous; leaflets alternate or subopposite, very shortly petiolulate or sessile, adaxially green, oblong-lanceolate or ovate-lanceolate, rarely obovate-lanceolate, 1.5–3.5 × 0.4–1.2 cm, papery, abaxially appressed pilose, often whitish farinaceous, adaxially glabrous, midvein abaxially slightly elevated, lateral veins in 4 or 5 pairs, obscure, base cuneate, margin sharply serrate, apex acute. Inflorescence terminal or axillary, cymose, laxly several flowered; peduncle and pedicels densely villous and farinaceous. Flowers 2.5–3 cm in diam.; pedicel 1.5–3 cm; bracts and bracteoles red-brown, linear-lanceolate, 6–20 mm, apex acuminate. Hypanthium obconic, fleshy, pubescent and white farinaceous. Sepals purplish, triangular-ovate, ca. 1.5 cm, abaxially pubescent and white farinaceous, adaxially appressed pubescent, apex acuminate; epicalyx segments purple, linear-lanceolate, 7–10 mm, abaxially pilose, apex acuminate. Petals white or red, obovate, 1–1.5 cm, nearly equaling sepals, glabrous, base shortly clawed, apex rounded. Stamens ca. 20; filaments 5–6 mm. Ovary cylindric-ovoid, villous. Fruiting receptacle densely villous. Achenes numerous, oblong-ovoid, ca. 2 mm, enclosed by persistent sepals and epicalyx segments. Fl. Jun–Aug, fr. Aug–Oct.

Mountain slopes, ravines, river banks; 3600--4000 m. Gansu, Nei Mongol, Ningxia, Qinghai, Xinjiang, Xizang [Afghanistan, NW India, Kyrgyzstan, Mongolia, Pakistan, Russia, Tajikistan].