Juncus canadensis var. typicus
| Juncus canadensis J. Gay ex Laharpe, var. typicus Fernald, Rhodora 47: 129. 1945, nom. inadmiss. | BASIONYM: Juncus canadensis J. Gay ex Laharpe 1825. | |
Juncus canadensis forma apertus
| Juncus canadensis J. Gay ex Laharpe, forma apertus Fernald, Rhodora 47: 129. 1945. | | TYPE: NEW JERSEY: Gloucester Co.: Along Scotland Run, Malaga, 1 Nov 1936, Long 49279 (holotype: GH). |
Juncus canadensis forma conglobatus
| Juncus canadensis J. Gay ex Laharpe, forma conglobatus Fernald, Rhodora 47: 129. 1945. | | TYPE: MASSACHUSETTS: Barnstable Co.: Hyannis, 5 Oct 1911, Weatherby 2833 (holotype: GH; isotype: NEBC). |
Juncus canadensis var. euroaster
| Juncus canadensis J. Gay ex Laharpe var. euroaster Fernald, Rhodora 47: 127. 1945. | | TYPE: VIRGINIA: Norfolk Co.: Near entrance to Portsmouth Ditch, Lake Drummond, Great Dismal Swamp W of Wallaceton, 6 Sep 1941, Fernald & Long 13588 (holotype: GH; isotype: PH). |
Juncus canadensis var. longicaudatus
| Juncus canadensis J. Gay ex Laharpe, var. longicaudatus Engelmann, Trans. Acad. Sci. St. Louis 2: 436. 1866; Trans. Acad. Sci. St. Louis 2: 474. 1868. | | |
Juncus canadensis var. paradoxus
| Juncus canadensis J. Gay ex Laharpe, var. paradoxus Farwell, Pap. Michigan Acad. Sci. 30: 60. 1944. | | TYPE: MICHIGAN: Houghton Co.: Shores of Rice Lake, 3 Sep 1950, Farwell 12726 (holotype: BLH) |
Juncus canadensis var. sparsiflorus
| Juncus canadensis J. Gay ex Laharpe, var. sparsiflorus Fernald, Rhodora 23: 241. 1922 ("1921"). | | TYPE: CANADA: Nova Scotia" Butler's (Gavelton) Lake, 4 Sep 1920, Fernald et al. 20687 (holotype: GH). |
Juncus longicaudatus
| Juncus longicaudatus (Engelmann) Mackenzie, Bull. Torrey Bot. Club 56: 31. 1929. | BASIONYM: Juncus canadensis J. Gay ex Laharpe, var. longicaudatus Engelmann 1866. | |