| Name | Ceratophyllum australe Grisebach |
| Authorship | Grisebach |
| Rank | Species |
| Placed in | Ceratophyllum Linnaeus |
| Citation | 1879 Abh. Königl. Ges. Wiss. Göttingen 24: 14 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ceratophyllum australe Grisebach |
| Identification made in | [no date] (3) |