Jerarquía taxonómica:
Asteraceae → Dahlia australis (Sherff) P.D. Sørensen, 1969

Familia:
Asteraceae

Autor:
(Sherff) P.D. Sørensen, 1969

Sinónimos:
Dahlia barkerae Knowles & Westc., 1838
Dahlia scapigera f. australis Sherff, 1947
Dahlia scapigera f. serratior Sherff, 1947
Dahlia scapigera f. purpurea Sherff, 1947
Dahlia australis var. australis (Sherff) P.D. Sørensen, 1969
Dahlia australis var. chiapensis P.D. Sørensen, 1969
Dahlia australis var. liebmannii (Sherff) P.D.Sørensen, 1969
Dahlia scapigera var. liebmannii Sherff, 1947
Dahlia australis var. serratior (Sherff) P.D.Sørensen, 1969
Dahlia scapigera var. australis Sherff, 1947
Dahlia scapigera var. arsenei Sherff, 1946