A small deciduous tree (Oxydendrum arboreum) in the heath family that is native to the eastern United States and has drooping panicles of small white urn-shaped flowers.
A North American tree (Oxydendrum arboreum) of the heath family, with thick, fissured bark, small, white flowers, grayish fruit, and sour leaves.
Origin of sourwood
- So called from its sour-tasting leaves
From American Heritage Dictionary of the English Language, 5th Edition