The name Quercus sinuata, published by Thomas Walter in 1788, has been interpreted to apply to some species of oak native to the southeastern United States, most often the Bluff Oak (Q. austrina Small). Inspection of the vegetation in the immediate vicinity of Walter’s North Carolina homesite disclosed no Bluff Oak, but did reveal several trees that well matched Walter’s description. Specimens from these trees have been identified as the hybrid of the Southern Red Oak (Q. falcata Michx.) and the Willow Oak (Q. phellos L.), both of which were found at the same location. To provide stability to the name Q. sinuata, a neotype has been selected.