Genus Tephrosia, commonly known as the hoary pea, is a group of flowering plants in the Fabaceae family. These plants are found all over the world, with a diverse range of species and uses. Some of the synonyms for the genus Tephrosia include Cracca and Sarothamnus. Some of the common names for these plants include fish poison plant, wild indigo, and goat's rue. Many species of Tephrosia are used in traditional medicine for a variety of ailments, and some are used as a natural insecticide. This versatile genus includes both annual and perennial species, and can be found in a wide range of habitats, from dry deserts to wet tropical rainforests.