| Name | Ammannia koehnei var. exauriculata Fernald |
| Authorship | Fernald |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Ammannia koehnei Britton |
| GUID | urn:lsid:ipni.org:names:11334-2 |
| Citation | 1936 Rhodora 38: 437 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ammannia koehnei var. exauriculata Fernald |
| Identification made in | [no date] (1) |