| Name | Scirpus olneyi f. australis Barros & Osten |
| Authorship | Barros & Osten |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Scirpus olneyi A. Gray |
| GUID | urn:lsid:ipni.org:names:230460-2 |
| Citation | 1931 Anales Mus. Nac. Montevideo ser. 2, 3: 204 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Scirpus olneyi f. australis Barros & Osten |
| Identification made in | [no date] (2) |