Dioneaa is a monotypic genus containing just 1 species of carnivorous, evergreen, perennial that forms rosettes. Known commonly as the Venus flytrap, this species is native to East Coast subtropical wetlands in the USA, growing in nutrient poor habitats and gleaning nutrition from capturing live, insect prey through a specialised trapping mechanism involving hair triggers and modified leaves. They require high levels of humidity, making it a tricky species to care for well at home. However, it is a popular houseplant and best maintained in terrariums or in bog gardens.