Dichanthelium laxiflorum (Lam.) Gould in Brittonia 26(1): 60. 1974 sec. Dávila & al. 2018
- =Panicum xalapense Kunth, Nov. Gen. Sp. (quarto ed.) 1: 103. 1815 syn. sec. Dávila & al. 2006
- =Panicum ruprechtii E. Fourn., Mexic. Pl. 2: 21. 1886 syn. sec. Dávila & al. 2006
- =Panicum dichotomum var. laxiflorum (Lam.) Beal, Grass. N. Amer. 2: 139. 1896 syn. sec. Dávila & al. 2006
- =Panicum caricifolium Scribn. ex Ashe in J. Elisha Mitchell Sci. Soc. 15: 57. 1898 syn. sec. Dávila & al. 2006
- =Panicum pyriforme Nash in Bull. Torrey Bot. Club 26(11): 579. 1899 syn. sec. Dávila & al. 2006