Calopogonium caeruleum is a fast-growing, perennial leguminous plant belonging to the family Fabaceae. It is native to tropical and subtropical regions of the Americas. Produces small, vibrant blue to purplish flowers in clusters. These flowers are characteristic of many legumes and are attractive to pollinators like bees. The plant bears flattened, linear pods that contain several seeds. The pods dry and split open to release seeds when mature.