Two species in the Trapa genus (T.natans and T.bicornis) share the same common names, which creates some confusion.
Names
Scientific
Trapa bicornis
English
Bat nut
Buffalo nut
Devil pod
Water caltrop
Water chestnut
Spanish
Castaña de agua
French
Mâcre bicorne
German
Wassernuss
Italian
Castagna d’acqua
Taxonomy
Genus
Trapa
Family
Lythraceae
Order
Myrtales
Crop categories
Vegetables
Edible seeds
Food crops
Tropical crops