| Name | Juncus trigonocarpus Steudel |
| Authorship | Steudel |
| Rank | Species |
| Placed in | Juncus |
| Citation | 1855 Syn. Pl. Glumac. 2(10): 308 |
| Holdings | 35 Specimens held in the Harvard University Herbaria identified as Juncus trigonocarpus Steudel |
| Identification made in | [no date] (35) |