1A shrub or small tree of north temperate regions that bears white flowers and inflated seed capsules.
- ‘You experience the ancient landscape with its indigenous plant communities like blue bells in the bottomland; and purple joe pye weed, bladder nut, and golden alexander under the oak canopy.’
- ‘In the marshes and stream banks are green dragon, blue flag irises, swamp white oak, silver maple, bladder nut, poison ivy, bulrush, and willow.’
- ‘The shrub cover is rather closed and contains saplings, red osier, grape vine and occasional pure stands of bladder nut.’
- 1.1The fruit of the bladdernut.