Megathyrsus maximus (Jacq.) B.K. Simon & S.W.L. Jacobs, Austrobaileya 6(3): 572. 2003 sec. Soreng, R. J., Davidse, G., Peterson, P. M., Zuloaga, F. O., Judziewicz, E. J., Filgueiras, T. S. & Morrone, O.: Catalogue of New World Grasses
- =Panicum maximum Jacq. in Icon. Pl. Rar. 1: 2, t. 13. 1781 syn. sec. ???
- =Panicum maximum Jacq. var. maximum in Icon. Pl. Rar. 1: 2, t. 13. 1781 syn. sec. ???
- =Panicum polygamum Sw., Prodr.: 24. 1788 syn. sec. ???
- =Panicum laeve Lam., Tabl. Encycl. 1: 172. 1791 syn. sec. ???
- =Panicum jumentorum Pers., Syn. Pl. 1: 83. 1805 syn. sec. ???
- =Panicum gongylodes Jacq., Ecl. Gram. Rar.: 30, t. 21. 1812 syn. sec. ???
- =Panicum scaberrimum Lag., Elench. Pl.: 2. 1816 syn. sec. ???
- =Panicum hirsutissimum Steud., Syn. Pl. Glumac. 1: 72. 1853 syn. sec. ???
- =Panicum trichocondylum Steud., Syn. Pl. Glumac. 1: 74. 1853 syn. sec. ???
- =Panicum maximum var. gongylodes (Jacq.) Döll, Fl. Bras. 2(2): 203. 1877 syn. sec. ???
- =Panicum praticola Salzm. ex Döll, Fl. Bras. 2(2): 203. 1877 syn. sec. ???
- =Panicum polygamum var. gongylodes (Jacq.) E. Fourn., Mexic. Pl. 2: 28. 1886 syn. sec. ???
- =Panicum maximum var. trichoglume Robyns in Mém. Inst. Roy. Colon. Belge, Sect. Sci. Nat. (8VO) 1(6): 31. 1932 syn. sec. ???
- =Urochloa maxima (Jacq.) R.D. Webster, Austral. Paniceae: 241. 1987 syn. sec. ???
- =Urochloa maxima var. trichoglumis (Robyns) R.D. Webster, Austral. Paniceae: 242. 1987 syn. sec. ???