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

2. Potentilla glabra Loddiges, Bot. Cab. 10: t. 914. 1824.

银露梅 yin lu mei

Potentilla glabra

Credit: Harvard University Herbaria

Shrubs 0.3–2(–3) m tall. Young branchlets sparsely pubescent, older ones covered with grayish brown, peeling bark. Stipules thinly membranous, sparsely pilose or subglabrous; petiole sparsely pilose; leaf blade pinnate with 2(or 3) pairs of leaflets; leaflets oblong, obovate-elliptic, or ovate-elliptic, 0.5–1.2 cm × 4–8 mm, both surfaces sparsely (rarely densely) pilose, sericeous, or glabrescent, base cuneate or rounded, decurrent and adnate to rachis in apical pair of leaflets, margin entire, flat or slightly revolute, apex obtuse or acute. Flowers 1 to several, terminal on separate branches, 1.5–2.5 cm in diam.; pedicel long, thin, sparsely pilose. Sepals ovate, apex acute or shortly mucronate; epicalyx segments lanceolate, obovate-lanceolate, or ovate, shorter than or nearly equaling sepals, abaxially sparsely pilose. Petals white, obovate, apex rounded. Style sub-basal, clavate, thin at base, constricted at base of dilated stigma. Achenes hairy. Fl. and fr. May–Nov.

Forests, forest margins, thickets, meadows, slopes, alpine talus slopes, ravines, open places, rocky places; 1200--4200 m. Anhui, Gansu, Hebei, Hubei, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan, Yunnan [Korea, Mongolia, Russia].

1 Leaflets abaxially densely white tomentose or sericeous.   2d var. mandshurica
+ Leaflets abaxially sparsely white sericeous or glabrescent.   (2)
2 (1) Leaflets adaxially appressed sericeous; pedicels densely white sericeous-villous.   2c var. veitchii
+ Leaflets adaxially sparsely pilose; pedicels pilose.   (3)
3 (2) Leaflets elliptic, ovate-elliptic, or obovate-elliptic; flowers 1.5–2.5 cm in diam.; sepals ovate, apex acute or acuminate; petals obovate.   2a var. glabra
+ Leaflets lanceolate or oblong- lanceolate; flowers 2.5–3 cm in diam.; sepals lanceolate, apex long acuminate; petals spatulate- obovate-oblong, base tapering into a long claw.   2b var. longipetala

Lower Taxa


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