Piptochaetium avenaceum (L.) Parodi in Revista del Museo de La Plata (Nueva Serie), Sección Botánica 6(25): 229. 1944 sec. Dávila & al. 2018
- =Stipa avenacea L., Sp. Pl. 1: 78-79. 1753 syn. sec. Dávila & al. 2006
- =Stipa avenacea L. var. avenacea, Sp. Pl. 1: 78-79. 1753 syn. sec. Dávila & al. 2006
- =Stipa barbata Michx., Fl. Bor.-Amer. 1: 53. 1803 syn. sec. Dávila & al. 2006
- =Stipa virginica Pers., Syn. Pl. 1: 99. 1805 syn. sec. Dávila & al. 2006
- =Stipa avenacea var. bicolor Eaton & J. Wright, Man. Bot. (ed. 8): 444. 1848 syn. sec. Dávila & al. 2006
- =Podopogon avenaceus Raf. ex B.D. Jacks., Index Kew. 2: 580. 1894 syn. sec. Dávila & al. 2006
- =Podopogon barbatus Raf. ex B.D. Jacks., Index Kew. 2: 580. 1894 syn. sec. Dávila & al. 2006
- =Stipa leiantha Hitchc. in Contr. U.S. Natl. Herb. 24(7): 236, t. 51, f. 8-9. 1925 syn. sec. Dávila & al. 2006
- =Piptochaetium leianthum (Hitchc.) Beetle in Phytologia 54(1): 4. 1983 syn. sec. Dávila & al. 2006
- =Piptochaetium avenacellum Barkworth in Syst. Bot. 13(2): 196, f. 1. 1988 syn. sec. Dávila & al. 2006