| Name | Pontederia lanceolata f. trullifolia Fernald |
| Authorship | Fernald |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Pontederia lanceolata Nuttall |
| GUID | urn:lsid:ipni.org:names:208152-2 |
| Citation | 1925 Rhodora 27: 81 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pontederia lanceolata f. trullifolia Fernald |
| Identification made in | [no date] (1) |