| Name | Juncus xiphioides var. montanus Engelmann |
| Authorship | Engelmann |
| Rank | Variety |
| Placed in | Juncus xiphioides E. Meyer |
| GUID | urn:lsid:ipni.org:names:311793-2 |
| Citation | 1868 Trans. Acad. Sci. St. Louis 2: 481 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Juncus xiphioides var. montanus Engelmann |
| Identification made in | [no date] (3), 1866 (1), 2011 (2) |