High Quality Content by WIKIPEDIA articles! Aldrovanda vesiculosa, commonly known as the waterwheel plant, is the sole extant species in the flowering plant genus Aldrovanda of the family Droseraceae. The plant captures small aquatic invertebrates using traps similar to those of the Venus Flytrap. The traps are arranged in whorls around a central, free-floating stem, giving rise to the common name. This plant is one of the few species capable of rapid movement.