1. Species Carex ×aestivaliformis Mack.
2. Species Carex ×knieskernii Dewey
3. Species Carex ×sullivantii Boott
4. Species Carex aestivalis M.A.Curtis ex A.Gray
5. Species Carex angustispica Reznicek & S.González
6. Species Carex anisostachys Liebm.
7. Species Carex arctata Boott
8. Species Carex austromexicana Reznicek
9. Species Carex boliviensis Van Heurck & Müll.Arg.
10. Species Carex bushii Mack.
11. Species Carex caeligena Reznicek
12. Species Carex californica L.H.Bailey
13. Species Carex caroliniana Schwein.
14. Species Carex castanea Wahlenb.
15. Species Carex chiapensis F.J.Herm.
16. Species Carex complanata Torr. & Hook.
17. Species Carex conspecta Mack.
18. Species Carex coulteri Boott ex Hemsl.
19. Species Carex crinalis Boott
20. Species Carex cyrtostachya Janeway & Zika
21. Species Carex dasycarpa Muhl.
22. Species Carex davisii Schwein. & Torr.
23. Species Carex debilis Michx.
24. Species Carex flexirostris Reznicek
25. Species Carex formosa Dewey
26. Species Carex gracillima Schwein.
27. Species Carex guatemalensis F.J.Herm.
28. Species Carex gynodynama Olney
29. Species Carex hebetata Boott
30. Species Carex hirsutella Mack.
31. Species Carex hirtifolia Mack.
32. Species Carex hirtissima W.Boott
33. Species Carex huancabambica Gonz.Gallego & Jim.Mejías
34. Species Carex huehueteca Standl. & Steyerm.
35. Species Carex ixtapalucensis Reznicek
36. Species Carex longicaulis Boeckeler
37. Species Carex mackenziana Weath.
38. Species Carex mendocinensis Olney ex Boott
39. Species Carex misera Buckley
40. Species Carex oxylepis Torr. & Hook.
41. Species Carex pallescens L.
42. Species Carex perlonga Fernald
43. Species Carex pinophila Reznicek & S.González
44. Species Carex polymorpha Muhl.
45. Species Carex pubigluma Reznicek
46. Species Carex pygmaea Boeckeler
47. Species Carex queretarensis Reznicek & S.González
48. Species Carex roanensis F.J.Herm.
49. Species Carex steyermarkii Standl.
50. Species Carex swanii (Fernald) Mack.
51. Species Carex tamana Steyerm.
52. Species Carex tenax Chapm. ex Dewey
53. Species Carex tenejapensis Reznicek & S.González
54. Species Carex torreyi Tuck.
55. Species Carex tovarensis Reznicek & G.A.Wheeler
56. Species Carex venusta Dewey
57. Species Carex virescens Muhl. ex Willd.
58. Species Carex whitneyi Olney
59. Species Carex abbreviata Prescott ex Boott accepted as Carex torreyi Tuck.
60. Species Carex albirostris C.B.Clarke accepted as Carex davisii Schwein. & Torr.
61. Species Carex allegheniensis Mack. accepted as Carex debilis var. rudgei L.H.Bailey
62. Species Carex androgyna L.H.Bailey accepted as Carex anisostachys Liebm.
63. Species Carex archata Boot. accepted as Carex arctata Boott (unaccepted > misspelling - incorrect subsequent spelling, Misspelled epithet in databases)
64. Species Carex aristata Dewey accepted as Carex davisii Schwein. & Torr.
65. Species Carex blankinshipii Fernald accepted as Carex gynodynama Olney
66. Species Carex blepharophora A.Gray accepted as Carex castanea Wahlenb.
67. Species Carex bolliana Boeckeler accepted as Carex complanata subsp. complanata
68. Species Carex capillata Schkuhr ex Kunth accepted as Carex hirsutella Mack.
69. Species Carex chalcodeta V.I.Krecz. accepted as Carex pallescens L.
70. Species Carex chapmanii Sartwell ex Dewey accepted as Carex tenax Chapm. ex Dewey
71. Species Carex chapmanii Sartwell ex L.H.Bailey accepted as Carex tenax Chapm. ex Dewey
72. Species Carex chlorocarpos Liebm. accepted as Carex anisostachys Liebm.
73. Species Carex ciliaris Fernald accepted as Carex longicaulis Boeckeler
74. Species Carex cinnamomea Olney accepted as Carex mendocinensis Olney ex Boott
75. Species Carex costata Schwein. accepted as Carex virescens Muhl. ex Willd.
76. Species Carex costellata Britton accepted as Carex virescens Muhl. ex Willd.
77. Species Carex darlingtonii Schwein. ex M.A.Curtis accepted as Carex aestivalis M.A.Curtis ex A.Gray
78. Species Carex debiliformis Mack. accepted as Carex mendocinensis Olney ex Boott
79. Species Carex digitalis Schwein. & Torr. accepted as Carex gracillima Schwein.
80. Species Carex familiaris Steud. accepted as Carex oxylepis var. oxylepis
81. Species Carex felipensis C.B.Clarke accepted as Carex anisostachys Liebm.
82. Species Carex flaccifolia Mack. accepted as Carex whitneyi Olney
83. Species Carex flexilis Rudge accepted as Carex castanea Wahlenb.
84. Species Carex flexuosa Muhl. ex Willd. accepted as Carex debilis var. rudgei L.H.Bailey
85. Species Carex galbana L.H.Bailey accepted as Carex boliviensis subsp. boliviensis
86. Species Carex glabra Boott accepted as Carex venusta Dewey
87. Species Carex halseyana Dewey accepted as Carex polymorpha Muhl.
88. Species Carex halseyi Eaton accepted as Carex polymorpha Muhl.
89. Species Carex hirsuta Willd. accepted as Carex hirsutella Mack.
90. Species Carex jepsonii J.T.Howell accepted as Carex whitneyi Olney
91. Species Carex juncea Willd. accepted as Carex misera Buckley
92. Species Carex leucantha Schur accepted as Carex pallescens L.
93. Species Carex liebmannii Walp. accepted as Carex anisostachys Liebm.
94. Species Carex longa Mack. accepted as Carex perlonga Fernald
95. Species Carex lorentziana Griseb. accepted as Carex boliviensis subsp. boliviensis
96. Species Carex microstoma Franch. accepted as Carex pallescens L.
97. Species Carex miser Buckley accepted as Carex misera Buckley (unaccepted > misspelling - incorrect subsequent spelling)
98. Species Carex monticola Boeckeler accepted as Carex anisostachys Liebm.
99. Species Carex oaxacana L.H.Bailey accepted as Carex anisostachys Liebm.
100. Species Carex oblita Steud. accepted as Carex venusta Dewey
101. Species Carex olivacea Liebm. accepted as Carex anisostachys Liebm.
102. Species Carex pallida Salisb. accepted as Carex pallescens L.
103. Species Carex pilosiuscula Boeckeler accepted as Carex whitneyi Olney
104. Species Carex pubescens Muhl. ex Willd. accepted as Carex hirtifolia Mack.
105. Species Carex pubescens Muhl. ex Schkuhr accepted as Carex pubescens Muhl. ex Willd. accepted as Carex hirtifolia Mack. (isonym)
106. Species Carex rugeliana Kunze accepted as Carex misera Buckley
107. Species Carex striata Torr. ex Boott accepted as Carex polymorpha Muhl.
108. Subsection Carex subsect. Debiles J.Carey accepted as Carex sect. CastaneaClade (unaccepted > homotypic synonym)
109. Subsection Carex subsect. Gracillimae J.Carey accepted as Carex sect. Gracillimae (J.Carey) Mack. accepted as Carex sect. CastaneaClade (unaccepted > homotypic synonym)
110. Subsection Carex subsect. Pallescentes J.Carey accepted as Carex sect. Porocystis Dumort. accepted as Carex sect. CastaneaClade (unaccepted > homotypic synonym)
111. Subsection Carex subsect. Virescentes J.Carey accepted as Carex sect. Virescentes (J.Carey) C.B.Clarke accepted as Carex sect. CastaneaClade (unaccepted > homotypic synonym)
112. Species Carex sylvatica Dewey accepted as Carex arctata Boott
113. Species Carex tabularia M.A.Curtis ex Boott accepted as Carex aestivalis M.A.Curtis ex A.Gray
114. Species Carex tenuis Rudge accepted as Carex debilis var. rudgei L.H.Bailey
115. Species Carex torreyana Dewey accepted as Carex davisii Schwein. & Torr.
116. Species Carex triceps Michx. accepted as Carex hirsutella Mack.
117. Species Carex tymphaea Formánek accepted as Carex pallescens L.
118. Species Carex undulata Kunze accepted as Carex pallescens L.
119. Species Carex viridiflora Mack. accepted as Carex perlonga Fernald
120. Species Carex viridis Schltdl. & Cham. accepted as Carex perlonga Fernald
121. Species Carex viridula Schwein. & Torr. accepted as Carex hirsutella Mack.
122. Species Carex aestivaliformis Mack. represented as Carex ×aestivaliformis Mack.
123. Species Carex knieskernii Dewey represented as Carex ×knieskernii Dewey
124. Species Carex sullivantii Boott represented as Carex ×sullivantii Boott

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