| Name | Ceratophyllum muricatum subsp. australe (Grisebach) Les |
| Authorship | (Grisebach) Les |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Ceratophyllum muricatum Chamisso |
| GUID | urn:lsid:ipni.org:names:274302-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ceratophyllum muricatum subsp. australe (Grisebach) Les |
| Identification made in | [no date] (1) |