Sparganium angustifolium var. multipedunculatum (Morong) Brayshaw
Sparganium angustifolium var. multipedunculatum (Morong) Brayshaw is a synonym sensu FNA Ed. Comm., 2000 of:
Sparganium angustifolium Michaux, an accepted species name sensu FNA Ed. Comm., 2000.