» Desert Senna (Senna covesii)'s also sometimes called "rattlepod". Crotalaria's a genus of herbaceous plants and woody shrubs in the Family Fabaceae (Subfamily Faboideae) commonly known as rattlepods. Some 600 or more species of Crotalaria are described world-wide, mostly from the tropics; at least 500 species are known from Africa. Some species of Crotalaria are grown as ornamentals. The common name rattlepod or rattlebox's derived from the fact that the seeds become loose in the pod as they… (More on Crotalaria)