Dahlia australis (Sherff) P.D. Sørensen in Rhodora 71: 378. 1969 sec. Carrasco-Ortíz & al. 2019
- ≡Dahlia scapigera var. australis Sherff in Amer. J. Bot. 34: 143. 1947 syn. sec. Tropicos 2013
- =Dahlia scapigera f. australis Sherff in Amer. J. Bot. 34: 143. 1947 syn. sec. ???
- =Dahlia scapigera f. purpurea Sherff in Amer. J. Bot. 34(3): 145. 1947 syn. sec. Pruski & Robinson 2018