| Name | Dahlia australis (Sherff) P. D. Sörensen |
| Authorship | (Sherff) P. D. Sørensen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Dahlia Cavanilles |
| Contains | Dahlia australis var. serratior (Sherff) Sorenson |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Dahlia australis (Sherff) P. D. Sörensen |
| Identification made in | [no date] (1), 1967 (2) |