Ichnanthus tenuis (J. Presl & C. Presl) Hitchc. & Chase in Contr. U.S. Natl. Herb. 18(7): 334. 1917 sec. Dávila & al. 2018
- ≡Oplismenus tenuis J. Presl & C. Presl, Reliq. Haenk. 1(4-5): 319. 1830 syn. sec. Dávila & al. 2006
- =Panicum maynense Trin. in Linnaea 10(3): 298. 1836 syn. sec. Dávila & al. 2006
- =Panicum exile Steud., Nomencl. Bot. (ed. 2) 2: 256. 1841 syn. sec. Dávila & al. 2006
- =Panicum subaristulatum Steud., Syn. Pl. Glumac. 1: 79. 1853 syn. sec. Dávila & al. 2006
- =Panicum subpellucidum Steud., Syn. Pl. Glumac. 1: 77. 1853 syn. sec. Dávila & al. 2006
- =Panicum acutiflorum Steud., Syn. Pl. Glumac. 1: 93. 1854 syn. sec. Dávila & al. 2006
- =Panicum polythyrsum Nees ex Steud., Syn. Pl. Glumac. 1: 93. 1854 syn. sec. Dávila & al. 2006
- =Panicum alsinoides Griseb., Fl. Brit. W. I.: 550. 1864 syn. sec. Dávila & al. 2006
- =Ichnanthus alsinoides (Griseb.) Munro ex Hemsl., Biol. Cent.-Amer., Bot. 3(19): 500. 1885 syn. sec. Dávila & al. 2006
- =Ichnanthus venezuelanus Mez in Repert. Spec. Nov. Regni Veg. 15: 132. 1918 syn. sec. Dávila & al. 2006
- =Ichnanthus angustifolius Swallen in J. Wash. Acad. Sci. 21(1): 16. 1931 syn. sec. Dávila & al. 2006
- =Ichnanthus tamayonis Chase in J. Wash. Acad. Sci. 42: 122, f. 2. 1952 syn. sec. Dávila & al. 2006
- =Ichnanthus polythyrsus (Nees ex Steud.) K.E. Rogers in Phytologia 22: 104. 1971 syn. sec. Dávila & al. 2006
- =Ichnanthus subpellucidus (Steud.) K.E. Rogers in Phytologia 22: 105. 1971 syn. sec. Dávila & al. 2006
- =Ichnanthus attenuatus K.E. Rogers in Phytologia 24(5): 408. 1972 syn. sec. Dávila & al. 2006
- =Ichnanthus pilosus K.E. Rogers in Phytologia 24(5): 415. 1972 syn. sec. Dávila & al. 2006
- =Ichnanthus breviacuminatus K.E. Rogers in Phytologia 26(2): 57. 1973 syn. sec. Dávila & al. 2006
- =Ichnanthus parodii var. villosissimus K.E. Rogers in Phytologia 26(2): 60. 1973 syn. sec. Dávila & al. 2006
- =Ichnanthus petraeus K.E. Rogers in Phytologia 26(2): 61. 1973 syn. sec. Dávila & al. 2006
- =Ichnanthus sabulosus K.E. Rogers in Phytologia 26(2): 61. 1973 syn. sec. Dávila & al. 2006
- =Ichnanthus sucrensis K.E. Rogers in Phytologia 26(2): 63. 1973 syn. sec. Dávila & al. 2006