| Name | Sagittaria graminea var. platyphylla Engelmann |
| Authorship | Engelmann |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sagittaria graminea Michaux |
| GUID | urn:lsid:ipni.org:names:225257-2 |
| Citation | 1867 Manual (Gray), ed. 5 494 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Sagittaria graminea var. platyphylla Engelmann |
| Identification made in | [no date] (1), 1952 (3), 2019 (3) |