Lonchocarpus

Lonchocarpus is a genus of flowering plants in the pea family, Fabaceae. It is native to tropical and subtropical regions of the Americas, with most species found in South America. The genus name comes from the Greek words "lonche" meaning lance and "karpos" meaning fruit, referring to the shape of the seed pods. Plants in the Lonchocarpus genus are typically trees or shrubs. They often have pinnately compound leaves and produce showy flowers that can be white, pink, purple, or yellow. The fruit is usually a flattened pod.

Several species within the Lonchocarpus genus have historical and cultural significance. For example, Lonchocarpus utilis and Lonchocarpus urucu have been used as sources of rotenone, a natural insecticide. Rotenone has been employed in traditional fishing practices and for pest control in agriculture. However, its use has declined in some regions due to concerns about its environmental impact and toxicity to non-target organisms. Some species are also valued for their timber. Medicinal uses have been reported for various Lonchocarpus species in traditional healing practices, though scientific validation for many of these claims is limited. The genus is diverse, with many species still undergoing taxonomic study. Conservation efforts are important for some species, as habitat loss can threaten their populations.