1. Species Carex aggregata Mack.
2. Species Carex agrostoides Mack.
3. Species Carex alma L.H.Bailey
4. Species Carex alopecoidea Tuck.
5. Species Carex annectens (E.P.Bicknell) E.P.Bicknell
6. Species Carex austrina Mack.
7. Species Carex brongniartii Kunth
8. Species Carex cephaloidea (Dewey) Dewey ex Boott
9. Species Carex cephalophora Muhl. ex Willd.
10. Species Carex conferta Hochst. ex A.Rich.
11. Species Carex conjuncta Boott
12. Species Carex crus-corvi Shuttlew. ex Kunze
13. Species Carex cusickii Mack.
14. Species Carex decomposita Muhl.
15. Species Carex densa (L.H.Bailey) L.H.Bailey
16. Species Carex diandra Schrank
17. Species Carex earistata F.T.Wang & Y.L.Chang ex S.Yun Liang
18. Species Carex ecuadorica Kük.
19. Species Carex erythrorrhiza Boeckeler
20. Species Carex firmicaulis Kalela
21. Species Carex fissa Mack.
22. Species Carex gayana É.Desv.
23. Species Carex gravida L.H.Bailey
24. Species Carex hypoleucos É.Desv.
25. Species Carex jonesii L.H.Bailey
26. Species Carex laevivaginata (Kük.) Mack.
27. Species Carex leavenworthii Dewey
28. Species Carex leptosaccus C.B.Clarke
29. Species Carex lycurus K.Schum.
30. Species Carex macrorrhiza Boeckeler
31. Species Carex marianensis Stacey
32. Species Carex mesochorea Mack.
33. Species Carex muehlenbergii Willd.
34. Species Carex nebularum Phil.
35. Species Carex nervina L.H.Bailey
36. Species Carex neurophora Mack.
37. Species Carex oklahomensis Mack.
38. Species Carex ownbeyi G.A.Wheeler
39. Species Carex pansa L.H.Bailey
40. Species Carex percostata F.J.Herm.
41. Species Carex perdentata S.D.Jones
42. Species Carex pleioneura G.A.Wheeler
43. Species Carex praegracilis W.Boott
44. Species Carex prairea Dewey ex Alph.Wood
45. Species Carex reichei Kük.
46. Species Carex simulata Mack.
47. Species Carex sparganioides Muhl. ex Willd.
48. Species Carex stipata Muhl. ex Willd.
49. Species Carex subfuegiana G.A.Wheeler
50. Species Carex triangularis Boeckeler
51. Species Carex vernacula L.H.Bailey
52. Species Carex vulpinoidea Michx.
53. Species Carex longebracteata Hornem. (uncertain > taxon inquirendum)
54. Species Carex agglomerata Mack. accepted as Carex aggregata Mack.
55. Species Carex alterna (L.H.Bailey) C.B.Clarke accepted as Carex praegracilis W.Boott
56. Species Carex andicola G.A.Wheeler accepted as Carex firmicaulis Kalela
57. Species Carex arizonensis C.B.Clarke accepted as Carex alma L.H.Bailey
58. Species Carex aueri Kalela accepted as Carex reichei Kük.
59. Species Carex autumnalis Mack. accepted as Carex marianensis Stacey
60. Species Carex bayardii Fernald accepted as Carex crus-corvi Shuttlew. ex Kunze
61. Species Carex bernardina Parish accepted as Carex diandra Schrank
62. Species Carex bicknellii E.G.Camus accepted as Carex annectens (E.P.Bicknell) E.P.Bicknell
63. Species Carex bonariensis Schltdl. accepted as Carex fissa Mack.
64. Species Carex brachyglossa Mack. accepted as Carex annectens (E.P.Bicknell) E.P.Bicknell
65. Species Carex bracteosa Schwein. accepted as Carex vulpinoidea Michx.
66. Species Carex breviligulata Mack. accepted as Carex densa (L.H.Bailey) L.H.Bailey
67. Species Carex brongniartii L.H.Bailey accepted as Carex densa (L.H.Bailey) L.H.Bailey
68. Species Carex camporum Mack. accepted as Carex praegracilis W.Boott
69. Species Carex cephaloidea Dewey accepted as Carex cephaloidea (Dewey) Dewey ex Boott
70. Species Carex chihuahuensis Mack. accepted as Carex agrostoides Mack.
71. Species Carex chrysoleuca Holm accepted as Carex densa (L.H.Bailey) L.H.Bailey
72. Species Carex curvifolia Boeckeler accepted as Carex macrorrhiza Boeckeler
73. Species Carex diclina Phil. accepted as Carex gayana É.Desv. (unaccepted > heterotypic synonym)
74. Species Carex dudleyi Mack. accepted as Carex densa (L.H.Bailey) L.H.Bailey
75. Species Carex ehrhartiana Hoppe ex Boott accepted as Carex diandra Schrank
76. Species Carex equadorica Kük. accepted as Carex ecuadorica Kük. (unaccepted > misspelling - incorrect subsequent spelling)
77. Species Carex fulva Thuill. accepted as Carex diandra Schrank
78. Species Carex halei Dewey accepted as Carex crus-corvi Shuttlew. ex Kunze
79. Species Carex hypoleucus Kük. accepted as Carex macrorrhiza Boeckeler
80. Species Carex hypoxanthos Steud. accepted as Carex brongniartii Kunth
81. Species Carex hystrix A.Gray ex Boott accepted as Carex crus-corvi Shuttlew. ex Kunze
82. Species Carex involucratella Mack. accepted as Carex muehlenbergii var. xalapensis (Kunth) Britton
83. Species Carex kurtziana Kük. accepted as Carex hypoleucos É.Desv.
84. Species Carex latebrosa Mack. accepted as Carex praegracilis W.Boott
85. Species Carex longibracteata Hornem. accepted as Carex longebracteata Hornem. (unaccepted > misspelling - incorrect subsequent spelling)
86. Species Carex lunelliana Mack. accepted as Carex gravida L.H.Bailey
87. Species Carex marcida Boott accepted as Carex praegracilis W.Boott
88. Species Carex marcida Raeusch. accepted as Carex praegracilis W.Boott
89. Species Carex mediterranea Mack. accepted as Carex mesochorea Mack.
90. Species Carex microsperma Wahlenb. accepted as Carex vulpinoidea Michx.
91. Species Carex microspherma Wahl accepted as Carex vulpinoidea Michx. (unaccepted > misspelling - incorrect subsequent spelling, lapsus)
92. Species Carex moniezii Lagrange accepted as Carex vulpinoidea Michx.
93. Species Carex muehlenbergii Brongn. accepted as Carex brongniartii Kunth
94. Species Carex muhlenbergii Kunth ex Boott accepted as Carex vulpinoidea Michx.
95. Species Carex multiflora Muhl. ex Willd. accepted as Carex vulpinoidea Michx.
96. Species Carex muricata Schltdl. & Cham. accepted as Carex brongniartii Kunth
97. Species Carex nitens Phil. accepted as Carex gayana É.Desv. (unaccepted > heterotypic synonym)
98. Species Carex obovoidea Cronquist accepted as Carex cusickii Mack.
99. Species Carex onusta Mack. accepted as Carex muehlenbergii var. enervis Boott
100. Species Carex ornithorhyncha Boott accepted as Carex crus-corvi Shuttlew. ex Kunze
101. Species Carex pedicellata (Dewey) Britton accepted as Carex austrina Mack.
102. Species Carex pinetorum Willd. ex Kunth accepted as Carex muehlenbergii var. muehlenbergii
103. Species Carex piniaria Bosc ex Boott accepted as Carex muehlenbergii var. muehlenbergii
104. Species Carex plana Mack. accepted as Carex muehlenbergii var. enervis Boott
105. Species Carex polymorpha Schwein. ex Boott accepted as Carex vulpinoidea Michx.
106. Species Carex pseudoparadoxa S.Gibson accepted as Carex diandra Schrank
107. Species Carex pycnostachya Desv. accepted as Carex pleioneura G.A.Wheeler
108. Species Carex robinsonii Podlech accepted as Carex lycurus subsp. lycurus
109. Species Carex scabrior Sartwell ex Boott accepted as Carex vulpinoidea Michx.
110. Species Carex scabrior Sartwell ex Dewey accepted as Carex vulpinoidea Michx.
111. Species Carex schedonautos Steud. accepted as Carex gayana É.Desv. (unaccepted > heterotypic synonym)
112. Species Carex setacea Dewey accepted as Carex vulpinoidea Michx.
113. Species Carex setacea Frank ex Kunth accepted as Carex stipata var. stipata
114. Species Carex siciformis Boott accepted as Carex crus-corvi Shuttlew. ex Kunze
115. Species Carex sparganioides Leconte ex Kunth accepted as Carex stipata var. stipata
116. Species Carex stipitata Boeckeler accepted as Carex stipata var. stipata
117. Subsection Carex subsect. Muehlenbergianae J.Carey accepted as Carex sect. Muehlenbergianae (J.Carey) Mack. accepted as Carex sect. AnnectensClade (unaccepted > homotypic synonym)
118. Subsection Carex subsect. Multiflorae J.Carey accepted as Carex sect. Multiflorae (J.Carey) Asch. & Graebn. accepted as Carex sect. AnnectensClade (unaccepted > homotypic synonym)
119. Species Carex taurina Phil. accepted as Carex gayana É.Desv. (unaccepted > heterotypic synonym)
120. Species Carex teretiuscula Gooden. accepted as Carex diandra Schrank
121. Species Carex uberior (C.Mohr) Mack. accepted as Carex stipata var. maxima Chapm. ex Boott
122. Species Carex vaginiformis Tuck. accepted as Carex vulpinoidea Michx.
123. Species Carex vicaria L.H.Bailey accepted as Carex densa (L.H.Bailey) L.H.Bailey
124. Species Carex virginiana (Fernald) Fernald accepted as Carex crus-corvi Shuttlew. ex Kunze
125. Species Carex vitrea Holm accepted as Carex alma L.H.Bailey
126. Species Carex vulpina J.Carey ex Dewey accepted as Carex conjuncta Boott
127. Species Carex vulpiniformis Tuck. accepted as Carex vulpinoidea Michx.
128. Species Carex xalapensis Kunth accepted as Carex muehlenbergii var. xalapensis (Kunth) Britton
129. Species Carex xanthocarpa E.P.Bicknell accepted as Carex annectens (E.P.Bicknell) E.P.Bicknell

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