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(Upload on October 16 2013) [ 日本語 | English ]

Nuphar Sibth. et Sm. (コウホネ) Nuphar pumila (Timm) DC., also spelled as Nuphar pumilum (Timm) DC. var. pumila Nemurokouhone (ネムロコウホネ, 根室河骨, small yellow pond-lily Ezokouhone (エゾコウホネ, 蝦夷河骨) Lifeform: aquatic perennial forb Distribution: Northern and Central Europe to Northern Asia, including northern Japan and the Northern Territories RDB of Japan: VU (vulnerable)

Habitat: halophyte (ponds, lakes, shallow streams, etc.) ⇒ wetland (湿原) Chromosome number: 2n (2x) = 34 Stigma disk (柱頭盤): yellow var. ozeensis (Miki) H. Hara (オゼコウホネ) Distribution: endemic to Japan Stigma disk: red

Nuphar pumilum in Hokkaido

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[1-3] along a tiny trail for looking around small islands in O-numa Park, southern Hokkaido, on July 7 2013.