| Name | Najas gracillima (A. Braun ex Engelmann) Magnus |
| Authorship | (A. Braun ex Engelmann) Magnus |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Najas |
| Holdings | 124 Specimens held in the Harvard University Herbaria identified as Najas gracillima (A. Braun ex Engelmann) Magnus |
| Identification made in | [no date] (118), 1974 (5), 2018 (1) |