| Name | Najas major var. gracilis Morong |
| Authorship | Morong |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Najas major Allioni |
| GUID | urn:lsid:ipni.org:names:166936-2 |
| Citation | 1885 Bot. Gaz. 10: 255 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Najas major var. gracilis Morong |
| Identification made in | [no date] (1) |