Axonopus poiophyllus Chase in Proc. Biol. Soc. Wash. 24: 133. 1911 sec. Dávila & al. 2018
- ≡Anastrophus poiophyllus (Chase) Nash, N. Amer. Fl. 17: 163. 1912 syn. sec. Dávila & al. 2006
- =Axonopus blakei Hitchc. in Proc. Biol. Soc. Wash. 40: 85. 1927 syn. sec. Dávila & al. 2006
- =Axonopus rhizomatosus Swallen in J. Wash. Acad. Sci. 23(10): 458. 1933 syn. sec. Dávila & al. 2006
- =Axonopus caespitosus Swallen in Ann. Missouri Bot. Gard. 30: 185. 1943 syn. sec. Dávila & al. 2006
- =Axonopus lineatus G.A. Black, Advancing Frontiers Pl. Sci. 5: 67. f. 2k. 1963 syn. sec. Dávila & al. 2006
- =Axonopus reederi G.A. Black, Advancing Frontiers Pl. Sci. 5: 45, t. 2. 1963 syn. sec. Dávila & al. 2006