Plantae>Magnoliophyta>Magnoliopsida>Sapindales>Staphyleaceae>Staphylea trifolia L.
![]() | Bladdernut is a large shrub or small tree that is fairly common in rich bottomland forests, especially along streams. The three-parted, opposite, toothed leaves are distinctive. Hoptree (Ptelea trifoliata) also has trifoliate leaves, but the leaves are alternate and it's a rare shrub of drier areas. Boxelder (Acer negundo) is much larger and has more coarsely toothed leaves. Durham Co., NC 6/21/2009. |
![]() | Orange Co., NC 6/3/2012. |
![]() | Leaves are paler beneath and slightly hairy. Durham Co., NC 6/21/2009. |
![]() | Pendant bell-shaped flowers appear in mid-April. Eno River, Durham Co., NC 4/11/09. |
![]() | Eno River, Durham Co., NC 4/11/09. |
![]() | Eno River, Durham Co., NC 4/11/09. |
![]() | Chapel Hill, NC 4/14/02. |
![]() | Chapel Hill, NC 4/14/02. |
![]() | The flowers are followed by bladder-like, air-filled seed pods, which ripen in the fall. Caswell Co., NC 5/21/10. |
![]() | Orange Co., NC 6/3/2012. |
![]() | Orange Co., NC 6/3/2012. |
![]() | Durham Co., NC 6/21/2009. |
![]() | Durham Co., NC 6/21/2009. |
![]() | The bark is tight or slightly ridged, with whitish striations. Orange Co., NC 6/3/2012. |
![]() | Chatham Co., NC 6/18/05. |
![]() | Bladdernut usually grows on river and stream banks. Eno River, Durham Co., NC 4/11/09. |
More information:
Iowa State
NC State Fact Sheet
Trees of Alabama and the Southeast
Virginia Tech Dendrology
Trees, Shrubs, and Woody Vines of North Carolina
cwcook@duke.eduAll photographs and text ©2012 by Will Cook unless otherwise indicated.