Sesbania vesicaria, commonly known as the bagpod or bladder pod, is a plant in the family Fabaceae native to North America. This species is a facultative hydrophyte occurring in wetlands and non-wetland areas. It is one of the 60 identified species in the genus Sesbania. The species name vesicaria is derived from the Latin word vesica, -ae meaning bladder or balloon.

Sesbania vesicaria is a tall, annual herb with a single main stem, 4 to 8 feet tall. This plant species is identified as being a shrub with pinnately compound leaves.