Juncus baekdusanensis M. Kim (2014: 239)
Isotype: [CHINA]: Mt. Baekdusan, 10 July 2014, M. Kim 20140321 (NIBRVP814948; Fig. 1 -24) .
Paratype: [CHINA]: Mt. Baekdusan, 5 August 2014, M . Kim 20140345 (NIBRVP814949) .
Note: These specimens were transferred to KB from JNU. The holotype is preserved at KH (!), and another isotype is preserved at NNH (!). Korea National Arboretum (2019) treated J. baekdusanensis as a synonym of J. stygius subsp. americanus (Buchenau) Hultén.