Vulpia microstachys (Nutt.) Munro, Pl. Hartw.: 342. 1857 sec. Dávila & al. 2018
- ≡Festuca microstachys Nutt. in J. Acad. Nat. Sci. Philadelphia, ser. 2, 1: 187. 1848 syn. sec. Dávila & al. 2006
- =Festuca arida Elmer in Bot. Gaz. 36: 52. 1903 syn. sec. Dávila & al. 2006
- =Festuca microstachys var. subappressa Suksd. in Werdenda 1(2): 3. 1923 syn. sec. Dávila & al. 2006
- =Vulpia arida (Elmer) Henrard in Blumea 2: 323. 1937 syn. sec. Dávila & al. 2006