Panicum polygonatum Schrad., Mant. 2: 256. 1824 sec. Dávila & al. 2018
- ≡Panicum pilosum var. polygonatum (Schrad.) Döll, Fl. Bras. 2(2): 211. 1877 syn. sec. Dávila & al. 2006
- =Panicum potamium Trin., Gram. Panic.: 239. 1826 syn. sec. Dávila & al. 2006
- =Setaria polygonata (Schrad.) Kunth, Révis. Gramin. 1: 47. 1829 syn. sec. Dávila & al. 2006
- =Panicum trichogonum Willd., Nomencl. Bot. (ed. 2) 2: 264. 1841 syn. sec. Dávila & al. 2006
- =Panicum potamicum Steud., Syn. Pl. Glumac. 1: 71. 1854 syn. sec. Dávila & al. 2006
- =Panicum polygonatum Sieber ex Griseb., Fl. Brit. W. I.: 548. 1864 syn. sec. Dávila & al. 2006
- =Panicum bourgaei E. Fourn., Biol. Cent.-Amer., Bot. 3: 486. 1885 syn. sec. Dávila & al. 2006
- =Panicum ecuadorense Mez in Bot. Jahrb. Syst. 56(Beibl. 125): 3. 1921 syn. sec. Dávila & al. 2006