Nassella tenuissima (Trin.) Barkworth in Taxon 39(4): 612. 1990 sec. Dávila & al. 2018
- ≡Stipa tenuissima Trin. in Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 4,2(1): 36. 1836 syn. sec. Dávila & al. 2006
- =Stipa tenuissima Trin. var. tenuissima in Mém. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 6, Sci. Math., Seconde Pt. Sci. Nat. 4,2(1): 36. 1836 syn. sec. Soreng 2003
- =Stipa mendocina Phil. in Anales Univ. Chile 27: 339. 1865 syn. sec. Dávila & al. 2006
- =Stipa geniculata Phil. in Anales Univ. Chile 36: 204. 1870 syn. sec. Dávila & al. 2006
- =Stipa cirrosa E. Fourn., Biol. Cent.-Amer., Bot. 3: 536. 1885 syn. sec. Dávila & al. 2006
- =Stipa subulata E. Fourn., Biol. Cent.-Amer., Bot. 3: 537. 1885 syn. sec. Dávila & al. 2006
- =Stipa oreophila Speg., Contr. Fl. Sierra Vent.: 65. 1896 syn. sec. Dávila & al. 2006
- =Stipa tenuissima var. oreophila (Speg.) Speg. in Anales Mus. Nac. Montevideo 4(2): 155. 1901 syn. sec. Dávila & al. 2006
- =Stipa tenuissima var. planicola Speg. in Anales Mus. Nac. Montevideo 4(2): 155. 1901 syn. sec. Dávila & al. 2006