Ichnanthus calvescens var. scabrior Döll, Fl. Bras. 2(2): 286. 1877 sec. Dávila & al. 2018
- =Panicum ichnodes Griseb., Fl. Brit. W. I.: 551. 1864 syn. sec. Dávila & al. 2006
- =Ichnanthus calvescens var. glabrescens Döll, Fl. Bras. 2(2): 286. 1877 syn. sec. Dávila & al. 2006
- =Ichnanthus ichnodes (Griseb.) Hitchc. & Chase in Contr. U.S. Natl. Herb. 18(7): 335. 1917 syn. sec. Dávila & al. 2006
- =Ichnanthus trinitensis Mez in Repert. Spec. Nov. Regni Veg. 15: 130. 1918 syn. sec. Dávila & al. 2006
- =Ichnanthus verticillatus Mez in Repert. Spec. Nov. Regni Veg. 15: 126. 1918 syn. sec. Dávila & al. 2006
- =Ichnanthus luetzelburgii Mez in Bot. Jahrb. Syst. 56(125): 9. 1921 syn. sec. Dávila & al. 2006
- =Ichnanthus auriculatus Swallen in Phytologia 11(2): 78. 1964 syn. sec. Dávila & al. 2006
- =Ichnanthus pallidus Swallen in Phytologia 11(2): 77. 1964 syn. sec. Dávila & al. 2006
- =Ichnanthus silvestris Swallen in Phytologia 11(2): 79. 1964 syn. sec. Dávila & al. 2006
- =Ichnanthus vestitus Swallen in Phytologia 11(2): 75. 1964 syn. sec. Dávila & al. 2006