Panicum elephantipes Nees ex Trin., Gram. Panic.: 206. 1826 sec. Dávila & al. 2018
- ≡Panicum elephantipes Nees, Fl. Bras. Enum. Pl. 2: 165. 1829 syn. sec. Dávila & al. 2006
- =Panicum fistulosum Hochst. ex Steud., Syn. Pl. Glumac. 1: 71. 1853 syn. sec. Dávila & al. 2006
- =Panicum firmum F. Aresch., Pl. Itin. Eugeniae: 116. 1910 syn. sec. Dávila & al. 2006
- =Panicum sucosum Hitchc. & Chase in Contr. U.S. Natl. Herb. 17(6): 475, f. 30. 1915 syn. sec. Dávila & al. 2006
- =Digitaria megapotamica Mez in Bot. Jahrb. Syst. 56(Beibl. 125): 7. 1921 syn. sec. Dávila & al. 2006