Smilax rotundifolia var. quadrangularis (Muhlenberg ex Willdenow) Alph. Wood
Smilax rotundifolia var. quadrangularis (Muhlenberg ex Willdenow) Alph. Wood is a synonym sensu FNA Ed. Comm., 2002b of:
Smilax rotundifolia Linnaeus, an accepted species name sensu FNA Ed. Comm., 2002b.