コウホネ
Nuphar japonicum.スイレン科。河骨と書いてコウホネ。根茎が白骨のようなのでこの名前に。
Business History and Operations Research & Management Science from Tokyo Bay Area,Nishi-Kasai
Business History and Operations Research & Management Science from Tokyo Bay Area,Nishi-Kasai
Nuphar japonicum.スイレン科。