Piptochaetium stipoides (Trin. & Rupr.) Hack. ex Arechav. in Anales Mus. Nac. Montevideo 1(4): 328, f. 18. 1896 sec. Dávila & al. 2018
- =Piptochaetium chaetophorum Griseb., Symb. Fl. Argent.: 298. 1879 syn. sec. Dávila & al. 2006
- =Caryochloa stipodes (Trin. & Rupr.) Kuntze, Revis. Gen. Pl. 2: 765. 1891 syn. sec. Dávila & al. 2006
- =Piptochaetium cuspidatum Phil. in Anales Univ. Chile 93: 732. 1896 syn. sec. Dávila & al. 2006
- =Oryzopsis stipoides (Trin. & Rupr.) Speg. in Anales Mus. Nac. Montevideo 4(2): 23–26, f. 9. 1901 syn. sec. Dávila & al. 2006
- =Stipa verruculosa Mez in Repert. Spec. Nov. Regni Veg. 17(13-18): 206. 1921 syn. sec. Dávila & al. 2006
- =Piptochaetium grisebachii (Speg.) Herter in Revista Sudamer. Bot. 6(5-6): 141. 1940 syn. sec. Dávila & al. 2006