The genus Genlisea comprises approximately 20 known species, divided more or less equally between Africa and the New World tropics and subtropics. The unique inverted 'Y'- shaped corkscrew traps of Genlisea species as well as the five calyx lobes (versus two or rarely four) allow one to easily differentiate any species in this genus from species belonging to the closely related genus Utricularia, also a member of the Lentibulariaceae family.