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Ronald P. Overton
Sourwood (Oxydendrum arboreum) grows in the upland forests of the southeastern United States. Also known as sorrel-tree or lily-of-the-valley-tree, its flowers are an important source of honey in some areas but it is of little value as a timber species. Sourwood sprouts often interfere with the establishment of more desirable species in second-growth and cutover areas. This mid-summer flowering tree is an attractive ornamental.