Bumald Bladdernut.  The species is named for 17th century Italian botanist Ovidio Montalbano who used the pen name Johannus Bumaldus when publishing.  Curious bit of phytoesoterica.  A smaller deciduous shrub with trifoliate leaves and panicles of white fragrant flowers followed by small bladders holding two shiny nut-like seeds which would make lovely beads.  A Far Reaches Botanical Conservancy offering.

Chinese Bladdernut.  A grand species from Hubei where this grew on a high bank arching out over a tumbling whitewater stream with its inflated seed pots containing burnished brown nutlets.  The showy flowers are in clusters looking somewhat like the love child of a Throes of Spring one night stand between Deutzia and Stryrax.  Likely pink buds opening to white, there is also a pink forrn but these wildlings have not yet flowered.  Can take full sun but best not in drying or freezing winds and truly shines in a sheltered position such as woodland edge.