Elatine triandra subsp. americana (Pursh) Á. Löve & D. Löve
Elatine triandra subsp. americana (Pursh) Á. Löve & D. Löve is a synonym sensu FNA Ed. Comm., 2015 of:
Elatine americana (Pursh) Arnott, an accepted species name sensu FNA Ed. Comm., 2016.