Crataegus columbiana var. piperi (Britton) Eggleston

Crataegus columbiana var. piperi (Britton) Eggleston is a synonym sensu FNA Ed. Comm., 2014 of:

Crataegus chrysocarpa var. piperi (Britton) Kruschke, an accepted variety name sensu FNA Ed. Comm., 2014.