Pontederia rotundifolia L. f., Suppl. Pl.: 192. 1872 sec. Espejo-Serna & López-Ferrari 2008
- =Pontederia brasiliensis Willd., Syst. Veg. 7: 1145. 1830 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Pontederia cordifolia Mart., Syst. Veg. 7: 1142. 1830 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Unisema orbiculata Raf., Med. fl. 2: 108. 1830 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Pontederia eriantha Miq. in Linnaea 17: 60. 1843 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Reussia grazielae Machado in Revista Brasil. Biol. 7: 177. fig. 3. 1947 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Reussia rotundifolia (L. f.) Castell. in Lilloa 25: 593. 1952 syn. sec. Espejo-Serna & López-Ferrari 2008