Pseudechinolaena polystachya (Kunth) Stapf, Fl. Trop. Afr. 9: 495. 1919 sec. Dávila & al. 2018
- ≡Echinolaena polystachya Kunth, Nov. Gen. Sp. 1: 119. 1815 syn. sec. Dávila & al. 2006
- =Lappago aliena Spreng. in Neue Entdeck. Pflanzenk. 3: 15. 1822 syn. sec. Dávila & al. 2006
- =Panicum uncinatum Raddi, Agrostogr. Bras.: 41. 1823 syn. sec. Dávila & al. 2006
- =Tragus alienus (Spreng.) Schult., Mant. 2: 205. 1824 syn. sec. Dávila & al. 2006
- =Panicum heteranthum Link, Hort. Berol. 1: 212. 1827 syn. sec. Dávila & al. 2006
- =Panicum glandulosum Nees, Gram. Panic.: 174. 1829 syn. sec. Dávila & al. 2006
- =Echinolaena trinii Zoll. & Moritz, Syst. Verz.: 102. 1845 syn. sec. Dávila & al. 2006
- =Lappago oplismenoides Speg. in Anales Soc. Ci. Argent. 16: 132–136. 1883 syn. sec. Dávila & al. 2006
- =Nazia aliena (Spreng.) Scribn. in Bull. Div. Agrostol., U.S.D.A. 28: f. 324. 1899 syn. sec. Dávila & al. 2006
- =Oplismenus oplismenoides (Speg.) Speg. in Anales Mus. Nac. Buenos Aires 9: 7. 1903 syn. sec. Dávila & al. 2006
- =Echinochloa polystachya (Kunth) Roberty, Petite Fl. l'Ouest-Afr.: 398. 1954 syn. sec. Dávila & al. 2006