Mezoneuron is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Caesalpinioideae[1] and the tribe Caesalpinieae.[2]
This genus consists of lianas, often with the characteristic 'cat's claw' spines on their stems. Pods are one or more seeded, with a longitudinal (often narrow) wing along the upper suture and a wing 2 mm or more wide, which may be papery, coriaceous or woody. They may be found in Africa, Madagascar and SE Asia across the Malay Peninsula and Archipelago to New Guinea, New Caledonia and Australia, one species endemic to Hawaii.[3]