| Name | Hydrocotyle umbellata var. ambigua A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Hydrocotyle umbellata Michaux |
| GUID | urn:lsid:ipni.org:names:125227-2 |
| Citation | 1867 Manual (Gray), ed. 5 190 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hydrocotyle umbellata var. ambigua A. Gray |
| Identification made in | [no date] (1) |