Dioscorea quaternata var. glauca (Muhlenberg ex L.C. Beck) Fernald

Dioscorea quaternata var. glauca (Muhlenberg ex L.C. Beck) Fernald is a synonym sensu FNA Ed. Comm., 2002b of:

Dioscorea villosa Linnaeus, an accepted species name sensu FNA Ed. Comm., 2002b.