| Name | Juncus effusus var. caeruleomontanus H. St. John |
| Authorship | H. St. John |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Juncus effusus Linnaeus |
| GUID | urn:lsid:ipni.org:names:132115-2 |
| Citation | 1931 Res. Stud. State Coll. Wash. 2: 110 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Juncus effusus var. caeruleomontanus H. St. John |
| Identification made in | [no date] (1) |