Digitaria argillacea (Hitchc. & Chase) Fernald in Rhodora 22(258): 104. 1920 sec. Dávila & al. 2018
- ≡Syntherisma argillacea Hitchc. & Chase in Contr. U.S. Natl. Herb. 18(7): 296. 1917 syn. sec. Dávila & al. 2006
- =Digitaria hirtigluma Hitchc. in Proc. Biol. Soc. Washington 40: 83. 1927 syn. sec. Dávila & al. 2006