| Name | Juncus leptocaulis Torr. & A. Gray ex Engelmann | 
| Authorship | Torr. & A. Gray ex Engelmann | 
| Rank | Species | 
| Placed in | Juncus | 
| Citation | 1866 Trans. Acad. Sci. St. Louis ii. 454 | 
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Juncus leptocaulis Torr. & A. Gray ex Engelmann | 
| Identification made in | [no date] (3) | 
