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

2. Potentilla sect. Nematostylae (Th. Wolf) Gusuleac in Savulescu, Fl. Reipubl. Popularis Roman. 4: 602. 1956.

线状花柱组 xian zhuang hua zhu zu

Potentilla subsect. Nematostylae Th. Wolf, Biblioth. Bot. 16(Heft 71): 45. 1908.

Subshrubs or perennial, woody-based herbs. Basal leaves pinnate, palmate, or 3-foliolate; leaflets entire, serrate, or divided at margin. Ovary densely villous, very rarely glabrous; style sub-basal, lateral, or subterminal, filiform, evenly thickened throughout its length.

About 50 species: mainly temperate and subarctic regions of N hemisphere; five species (one endemic) in China.

1 Leaflet margin entire; style subterminal.   (2)
+ Leaflet margin or apex serrate or lobed; style sub-basal, lateral, or subterminal.   (3)
2 (1) Leaf blade pinnately or subpalmately 5–7-foliolate, leaflets not articulate at base.   9 P. biflora
+ Leaf blade 3-foliolate, leaflets articulate at base.   10 P. articulata
3 (1) Leaflets 3-serrate at apex; style lateral or sub-basal.   6 P. cuneata
+ Leaflets many serrate or distally 5–7-dentate or 2–5-parted at margin; style subterminal.   (4)
4 (3) Flowering stems ascending, rarely erect; rhizome elongate; leaflets distally 5–7-dentate or 2–5-parted at margin.   7 P. eriocarpa
+ Flowering stems usually erect; rhizome short; leaflets many serrate at margin.   8 P. ancistrifolia

Lower Taxa


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