Aristida divaricata Humb. & Bonpl. ex Willd., Enum. Pl. 1: 99. 1809 sec. Dávila & al. 2018
- =Chaetaria divaricata (Humb. & Bonpl. ex Willd.) P. Beauv., Ess. Agrostogr.: 30, 158. 1812 syn. sec. Dávila & al. 2006
- =Aristida humboldtiana Trin. & Rupr., Sp. Gram. Stipac.: 118. 1842 syn. sec. Dávila & al. 2006
- =Aristida palmeri Vasey in Bull. Torrey Bot. Club 10: 42. 1883 syn. sec. Dávila & al. 2006
- =Aristida lemmonii Scribn. in Trans. New York Acad. Sci. 14(2): 23. 1894 syn. sec. Dávila & al. 2006
- =Aristida jacquiniana var. subaequilonga Henrard in Meded. Rijks-Herb. 54(A): 270. 1927 syn. sec. Dávila & al. 2006