Floating Bur-reed, Narrowleaf Bur-reed, Narrow-leaved Bur-reed: Sparganium angustifolium (Synonyms: Sparganium angustifolium var. multipedunculatum, Sparganium emersum var. angustifolium, Sparganium emersum var. multipedunculatum, Sparganium multipedunculatum, Sparganium simplex var. multipedunculatum) -
Emergent Bur-reed, Simplestem Bur-reed, Simple-stem Bur-reed: Sparganium emersum (Synonyms: Sparganium angustifolium ssp. emersum, Sparganium chlorocarpum, Sparganium chlorocarpum var. acaule, Sparganium emersum ssp. acaule, Sparganium emersum ssp. emersum, Sparganium emersum var. emersum, Sparganium simplex, Sparganium simplex var. simplex) -
Broad-fruit Bur-reed, Broad-fruited Bur-reed: Sparganium eurycarpum (Synonyms: Sparganium californicum, Sparganium erectum, Sparganium erectum ssp. stoloniferum, Sparganium erectum ssp. stoloniferum, Sparganium eurycarpum ssp. eurycarpum, Sparganium eurycarpum var. greenei, Sparganium greenei) -
Arctic Bur-reed, Small Bur-reed: Sparganium natans (Synonym: Sparganium minimum) -