Juncus littoralis (Engelmann) Smyth & L.C. Smyth nom. illeg.
Juncus littoralis (Engelmann) Smyth & L.C. Smyth nom. illeg. is a synonym sensu Kirschner et al., 2002 of:
Juncus balticus subsp. littoralis (Engelmann) Snogerup, an accepted subspecies name sensu Kirschner et al., 2002.