Carex debilis var. prolixa
| Carex debilis Michaux, var. prolixa L. H. Bailey, Proc. Amer. Acad. Arts 22: 105. 1886. | | TYPE: FLORIDA/LOUISIANA: |
Carex debilis var. typica
| Carex debilis Michaux, var. typica Fernald, Rhodora 44: 310. 1942, nom. inadmiss. | BASIONYM: Carex debilis Michaux 1803. | |
Carex allegheniensis
| Carex allegheniensis Mackenzie, in Britton, N. Amer. Fl. 18: 291. 1935. | BASIONYM: Carex debilis Michaux, var. pubera A. Gray 1867. | |
Carex debilis subsp. pubera
| Carex debilis Michaux, subsp. pubera (A. Gray) Á. Löve & D. Löve, Univ. Colorado Stud. Biol. Ser. 17: 16. 1965. | BASIONYM: Carex debilis Michaux, var. pubera A. Gray 1867. | |
Carex debilis subsp. rudgei
| Carex debilis Michaux, subsp. rudgei (L. H. Bailey) A. Löve & D. Löve, Univ. Colorado Stud. Biol. Ser. 17: 16. 1965. | BASIONYM: Carex debilis Michaux, var. rudgei L. H. Bailey 1889; Carex tenuis Rudge 1804, non J. F. Gmelin 1791. | |
Carex debilis var. intercursa
| Carex debilis Michaux, var. intercursa Fernald, Rhodora 44: 307. 1942. | | TYPE: VIRGINIA: Greensville Co.: Near Readjuster Bridge of Nottoway River, NE of Orion, 13 Jun 1940, Fernald & Long 12016 (holotype: GH; isotype: PH). |
Carex debilis var. interjecta
| Carex debilis Michaux, var. interjecta L. H. Bailey, Bull. Torrey Bot. Club 20: 418. 1893. | | TYPE: NEW YORK: Yates Co.: Penn Yan, |
Carex debilis var. pubera
| Carex debilis Michaux, var. pubera A. Gray, Manual, ed. 5. 593. 1897. | | TYPE: PENNSYLVANIA: Centre Co.: Bear Meadows, |
Carex debilis var. rudgei
| Carex debilis Michaux, var. rudgei L. H. Bailey, Mem. Torrey Bot. Club 1: 34. 1889. | BASIONYM: Carex tenuis Rudge 1804, non J. F. Gmelin 1791. | |
Carex debilis var. strictior
| Carex debilis Michaux, var. strictior L. H. Bailey, Mem. Torrey Bot. Club 1: 34. 1889. | | TYPE: NEW HAMPSHIRE: |
Carex flexuosa
| Carex flexuosa Muhlenberg ex Willdenow, Sp. Pl. 4: 297. 1805. | | TYPE: PENNSYLVANIA: |
Carex tenuis
| Carex tenuis Rudge, Trans. Linn. Soc. London 7: 97, pl. 9(2). 1804, non J. F. Gmelin 1791. | | TYPE: NEW YORK: |
Carex tenuis var. erectior
| Carex tenuis Rudge, var. erectior Britton, in Britton & Brown, Ill. Fl. N. U.S. 1: 321. 1896, nom. illegit. | BASIONYM: Carex debilis Michaux, var. strictior L. H. Bailey 1889. | |
Carex tenuis var. interjecta
| Carex tenuis Rudge, var. interjecta (L. H. Bailey) Britton, in Britton & Brown, Ill. Fl. N. U.S. 1: 320. 1896. | BASIONYM: Carex debilis Michaux, var. interjecta L. H. Bailey 1893. | |