Euryale ferox (also known as fox nut, foxnut,'thangjing' in Manipuri, makhana, nikori (in Assamese),Onibas (Onibasu) in Japanese or gorgon plant) is the only 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.