| Name | Juncus acuminatus var. robustus Engelmann |
| Authorship | Engelmann |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Juncus acuminatus Michaux |
| GUID | urn:lsid:ipni.org:names:1176799-2 |
| Citation | 1868 Trans. Acad. Sci. St. Louis 2: 463 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Juncus acuminatus var. robustus Engelmann |
| Identification made in | [no date] (3), 1866 (1), 2022 (3) |