Eriocoma alta (Swallen) Romasch. in PhytoKeys 126: 96. 2019 sec. Peterson & al. 2019
- ≡Stipa alta Swallen in Proc. Biol. Soc. Wash. 56: 79. 1943 syn. sec. POWO 2019
- =Achnatherum altum (Swallen) Hoge & Barkworth in Phytologia 74(1): 5. 1993 syn. sec. POWO 2019