Entada rheedei

Entada rheedii, commonly known as African dream herb or snuff box sea bean, and as the cacoon vine in Jamaica, is a large woody liana or climber of the Mimosa clade Mimosoideae. The vine can grow as long as 120 m (390 ft). Their seeds have a thick and durable seed coat which allows them to survive lengthy periods of immersion in seawater. These seeds come in a pod which can be up to 6.5 feet (two meters) in length....read more on Wikipedia.