| Name | Juncus triformis Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Juncus |
| Contains | Juncus triformis var. brachystylus Engelmann Juncus triformis var. stylosus Engelmann Juncus triformis var. uniflorus Engelmann |
| GUID | urn:lsid:ipni.org:names:443607-1 |
| Citation | 1868 Trans. Acad. Sci. St. Louis 2: 492 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Juncus triformis Engelmann |
| Identification made in | [no date] (9), 2007 (1) |