Genus Trapa is a group of aquatic plants, commonly known as water chestnuts or water caltrops. These plants belong to the family of Trapaceae and are represented by four different species. While they are commonly known as water chestnuts, there are other synonyms that are also used for this Genus. Some of these synonyms include Johnny nuts, Singhara, Bat nut, Buffalo nut, Devil pod, Shingada, and Kurichipala. These plants are cultivated for their edible nuts, which are used in a variety of cuisines, and also for their ornamental purposes. The Genus Trapa plants are found in various parts of the world, including Asia, Europe, and Africa.