| Name | Juncus arcticus var. balticus (Willdenow) Trautvetter |
| Authorship | (Willdenow) Trautvetter |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Juncus arcticus Willdenow |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Juncus arcticus var. balticus (Willdenow) Trautvetter |
| Identification made in | [no date] (2), 2008 (3) |