bladder nut
noun
1- a shrub or small tree of northern temperate regions, which bears white flowers and inflated seed capsules省沽油属植物。
1.1
- Genus Staphylea, family Staphyleaceae: several species, in particular the central European S. pinnata.省沽油属, 省沽油科：数种, 尤指中欧省沽油。