| Name | Sagittaria calycina var. maxima Engelmann |
| Authorship | Engelmann |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sagittaria calycina Engelmann |
| GUID | urn:lsid:ipni.org:names:225225-2 |
| Citation | 1859 Rep. U.S. Mex. Bound., Bot. 212 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Sagittaria calycina var. maxima Engelmann |
| Identification made in | [no date] (1), 2008 (1) |