Euryale ferox (also known as Makhana in Hindi and Punjabi, fox nut, foxnut, 'thangjing' in Meeteilon i.e. Manipuri, makhana, nikori (in Assamese), Onibas (Onibasu) in Japanese or gorgon nut) is the only extant species in the genus Euryale. It is a flowering plant classified in the water lily family, Nymphaeaceae, although it is occasionally regarded as a distinct family Euryalaceae. Unlike other water lilies, the pollen grains of Euryale have three nuclei.