• Scientific Name: Nuphar pumila (Timm) DC.
• Ref: Syst. Nat. 2:61. 1821
• Synonyms:
  • Nenuphar pumila (Timm) Bluff & Fingerh.
  • Nuphar centricavata J.Schust.
  • N. jurana Magnin
  • N. lutea subsp. pumila (Timm) Beal
  • N. lutea var. pumila (Timm) A.Gray
  • N. minor Dumort.
  • N. ozeensis Miki
  • N. pumila f. rubro-ovaria Koji Ito ex Hideki Takah., M.Yamaz. & J.Sasaki
  • N. shimadae Hayata
  • N. subpumila Miki
  • Nymphaea lutea var. pumila Timm
  • N. pumila (Timm) Hoffm.
  • Nymphozanthus centricavatus (J.Schust.) Fernald
  • N. juranus (Magnin) Fernald
  • N. pumilus (Timm) Fernald
• English Common Name: least water-lily, dwarf water lily, small yellow pond-lily
• Chinese Common Name: 萍蓬草 píngpéng∙cǎo 萍蓬莲 píngpéng∙lián黄金莲 huángjīn∙lián
• Japanese Common Name: ネムロコウホネ [根室河骨] nemurokōhone
• Family: Nymphaeaceae
• Genus: Nuphar
• Distribution: Lakes, ponds. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Jiangxi, Jilin, Nei Mongol, Taiwan, Xinjiang, Zhejiang [Japan, Korea, Mongolia, Russia; N Europe].
• Photo: 2006, Zhejiang

Rhizomes stout, 1--3 cm in diam. Petiole 20--50 cm, pubescent; floating leaf blade broadly ovate to ovate, seldom elliptic, 6--17 × 6--12 cm, abaxially glabrous to densely pubescent, adaxially glabrous, base cordate and basal lobes remote from each other. Flower 1--4.5(--6) cm in diam. Peduncle 40--50 cm, pubescent. Sepals yellow, oblong to elliptic, 1--2.5 cm. Petals narrowly cuneate to broadly linear, 5--7 mm, apex emarginate. Anthers yellow, 1--6 mm. Stigmatic disc deeply lobed, 4--7.5 mm in diam., rays 8--13(--14). Fruit 1--2 cm in diam. Seeds brown, oblong to ovoid, 3--5 mm. Fl. May--Sep. 2n = 34. (Flora of China)

2006, Zhejiang