Muhlenbergia annua (Vasey) Swallen in Contr. U.S. Natl. Herb. 29(4): 204. 1947 sec. Dávila & al. 2018
- ≡Sporobolus annuus Vasey in Bull. Torrey Bot. Club 14: 9. 1887 syn. sec. Dávila & al. 2006
- =Muehlenbergia annua (Vasey) Swallen, Contr. U.S. Natl. Herb. 29(4) 204. 1947 syn. sec. Dávila & al. 2006