Cornus alba var. occidentalis (Torrey & A. Gray) B. Boivin

Cornus alba var. occidentalis (Torrey & A. Gray) B. Boivin is a synonym sensu FNA Ed. Comm., 2016 of:

Cornus occidentalis (Torrey & A. Gray) Coville, an accepted species name sensu FNA Ed. Comm., 2016.