Cow lily (s.l.)
Nuphar japonicum DC. [Nymphaeaceae]
Kouhone (コウホネ, 河骨)
Lifeform: perennial forb
Distribution: Korea - Japan
Habitat: halophyte (ponds, lakes, shallow streams, etc.)
Genus Nuphar Sibth. et Sm.
Confusing group
N. oguraense Miki (オグラコウホネ)
N. oguraense Miki var. akiense Shimoda (ベニオグラコウホネ)
N. pumilum (Timm) DC. var. ozeense (Miki) Hara (オゼコウホネ)
N. japonicum DC. (コウホネ/コオホネ)
N. japonicum DC. var. saijoense Shimoda (サイジョウコウホネ)
N. japonicum DC. f. rubrotinctum (Casp.) Kitam. (ベニコウホネ)
N. submerusa Shiga et Kadono (シモツケコウホネ)
N. pumilum (Timm) DC. (ネムロコウホネ/エゾコウホネ)
N. subintegerrimum (Casp.) Makino (ヒメコウホネ)
Nuphar japonicum in Hokkaido
Photo taken in Otarumappu Pond near Tomakomai City, Hokkaido, Japan, in the summer of 1987 (or 1986).
References
- General education "Field trip: Nature on lakes, volcanoes, sea and forests" (フィールド体験研修 海と湖と火山と森林の自然)
- wetland (湿原)