| Name | Dahlia australis var. serratior (Sherff) Sorenson |
| Authorship | (Sherff) Sorenson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Dahlia australis (Sherff) P. D. Sörensen |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Dahlia australis var. serratior (Sherff) Sorenson |
| Identification made in | 1965 (1) |