Sparganium emersum subsp. acaule (Beeby) C.D.K. Cook & M.S. Nicholls

Sparganium emersum subsp. acaule (Beeby) C.D.K. Cook & M.S. Nicholls is a synonym sensu FNA Ed. Comm., 2000 of:

Sparganium acaule (Beeby) Rydberg, an accepted species name sensu Ito et al. 2016.