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

1. Potentilla sect. Rhopalostylae (Th. Wolf) Gusuleac in Savulescu, Fl. Reipubl. Popularis Roman. 4: 601. 1956.

棒状花柱组 bang zhuang hua zhu zu

Potentilla subsect. Rhopalostylae Th. Wolf, Biblioth. Bot. 16(Heft 71): 44. 1908.

Shrubs or subshrubs. Basal and cauline leaves pinnate, rarely 3-foliolate; leaflets entire or 2-lobed at apex. Ovary densely hairy or only sparsely so at hilum or apex, rarely glabrous; style sub-basal or lateral, clavate, thin proximally, thickened at apex.

About five species: temperate and subarctic regions of N hemisphere; five species in China.

1 Herbs short or woody based; leaflets usually 2-fid, rarely entire, base not articulate at connection with petiole; ovary pilose around hilum or apex when young, glabrescent at maturity or only sparsely pilose at the apex, glabrous at maturity; style lateral.   (2)
+ Shrubs with woody stems above ground; leaflets entire, base articulate at connection with petiole; ovary densely villous; style sub-basal.   (3)
2 (1) Leaflets usually opposite, rarely alternate, both surfaces sparsely pilose or subglabrous.   4 P. bifurca
+ Leaflets usually alternate, densely softly gray pubescent.   5 P. imbricata
3 (1) Petals white.   2 P. glabra
+ Petals yellow.   (4)
4 (3) Leaves pinnate with 2 pairs of leaflets, rarely 3-foliolate, leaflets oblong, obovate-oblong, or ovate- lanceolate, 3–20 × 3–10 mm.   1 P. fruticosa
+ Leaves pinnate with 2 or 3 pairs of leaflets, basal 2 pairs usually palmately arranged or appearing whorled, rarely leaves 3-foliolate, leaflets lanceolate, linear-lanceolate, or obovate-lanceolate, 5–10 × 2–5 mm.   3 P. parvifolia

Lower Taxa


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