| Name | Sagittaria brevirostra Mackenzie & Bush |
| Authorship | Mackenzie & Bush |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Sagittaria Linnaeus |
| Citation | 1905 Rep. (Annual) Missouri Bot. Gard. 16: 102 |
| Holdings | 33 Specimens held in the Harvard University Herbaria identified as Sagittaria brevirostra Mackenzie & Bush |
| Identification made in | [no date] (18), 1983 (1), 1988 (3), 1994 (1), 1995 (10) |