foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.6 (2001)              | Family List  Nymphaeaceae  PDF Nuphar  PDF   |  eFloras.org Link Font:+ Big | - Small
   1. Nuphar  Smith
萍蓬草属   ping peng cao shu
  
Authors:Fu Dezhi; Donald Padgett

Nymphozanthus Richard, nom. rej.

  

Herbs perennial. Rhizomes repent, branched. Leaves dimorphic, either floating with thick leathery blades and long petioles or submersed with thin, papery blades and short petioles; leaf blade ovate to elliptic, venation primarily pinnate, base cordate, margin entire, not peltate. Flowers hypogynous, emergent, perianth ± upright. Sepals (4--)5(--7), yellow or orange, petaloid, oblong to obovate, persistent. Petals numerous, yellow, small, stamenlike. Stamens nearly as long as sepals, inserted at base of ovary; filament strap-like; anthers yellow, connective unappendaged. Carpels completely united. Style absent. Stigma sessile and radiate on flattened stigmatic disc, lacking marginal appendages. Fruit ovoid to urceolate, irregularly dehiscent. Seeds smooth, not arillate.

About ten species: widespread in N temperate regions; two species in China.

  
1Floating leaf blades 6--17 cm; stigmatic disc deeply lobed, 4--7.5 mm in diam.1  N. pumila    萍蓬草
+Floating leaf blades 15--30 cm; stigmatic disc entire, 7--19 mm in diam.2  N. lutea    欧亚萍蓬草
   
   Lower Taxon
  • Nuphar lutea  (Linnaeus) Smith  欧亚萍蓬草
  • Nuphar pumila  (Timm) de Candolle  萍蓬草
  • Nuphar pumila subsp. pumila    萍蓬草(原亚种)
  • Nuphar pumila subsp. sinensis  (Handel-Mazzetti) D. Padgett  中华萍蓬草