Derris species are a group of flowering plants belonging to the legume family, Fabaceae. They are primarily found in tropical regions and are known for their climbing or twining growth habit. These plants produce attractive flowers and are often used in landscaping and ornamental gardening. One notable characteristic of some Derris species is their production of rotenone, a natural insecticide. This compound has been used in agriculture and pest control due to its effectiveness against various insects. However, the use of rotenone has declined due to environmental concerns and the development of synthetic alternatives.