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Source: Cyperaceae of North America Update, database (version 2010)

ITIS records citing this source
 
 Kingdom Plantae
  Abildgaardia Vahl -- accepted -- sedge
  Abildgaardia monostachya (L.) Vahl -- not accepted
  Abildgaardia ovata (Burm. f.) Kral -- accepted -- flatspike sedge
  Amphiscirpus Oteng-Yeb. -- accepted -- bulrush
  Amphiscirpus nevadensis (S. Watson) Oteng-Yeb. -- accepted -- Nevada bulrush
  Baeothryon alpinum (L.) T.V. Egorova -- not accepted
  Baeothryon caespitosum (L.) A. Dietr. -- not accepted
  Baeothryon cespitosum (L.) A. Dietr. -- not accepted
  Baeothryon clementis (M.E. Jones) Á. Löve & D. Löve -- not accepted
  Baeothryon clintonii (A. Gray) Á. Löve & D. Löve -- not accepted
  Baeothryon pumilum (Vahl) Á. Löve & D. Löve -- not accepted
  Baeothryon verecundum (Fernald) Á. Löve & D. Löve -- not accepted
  Blysmopsis Oteng-Yeb. -- accepted -- bulrush
  Blysmopsis rufa (Huds.) Oteng-Yeb. -- accepted -- red bulrush
  Blysmus Panz. ex Schult. -- accepted -- bulrush
  Blysmus rufus (Huds.) Link -- not accepted -- red bulrush
  Bolboschoenus (Asch.) Palla -- accepted -- tuberous bulrush
  Bolboschoenus fluviatilis (Torr.) Soják -- accepted -- river bulrush
  Bolboschoenus glaucus (Lam.) S.G. Sm. -- accepted -- tuberous bulrush
  Bolboschoenus maritimus (L.) Palla -- accepted -- cosmopolitan bulrush
  Bolboschoenus maritimus ssp. fluviatilis (Torr.) Á. Löve & D. Löve -- not accepted
  Bolboschoenus maritimus ssp. maritimus (L.) Palla -- accepted -- cosmopolitan bulrush
  Bolboschoenus maritimus ssp. paludosus (A. Nelson) Á. Löve & D. Löve -- accepted -- cosmopolitan bulrush
  Bolboschoenus maritimus var. paludosus (A. Nelson) Dorn -- not accepted
  Bolboschoenus novae-angliae (Britton) S.G. Sm. -- accepted -- New England bulrush
  Bolboschoenus paludosus (A. Nelson) Soó -- not accepted
  Bolboschoenus robustus (Pursh) Soják -- accepted -- sturdy bulrush
  Bulbostylis Kunth -- accepted -- hairsedge
  Bulbostylis antillana (Britton) Fernald -- not accepted
  Bulbostylis barbata (Rottb.) C.B. Clarke -- accepted -- watergrass
  Bulbostylis capillaris (L.) Kunth ex C.B. Clarke -- accepted -- densetuft hairsedge, threadleaf beakseed
  Bulbostylis capillaris ssp. antillana (Britton) T. Koyama -- not accepted -- densetuft hairsedge
  Bulbostylis capillaris ssp. capillaris (L.) Kunth ex C.B. Clarke -- not accepted -- dense-tuft hair sedge, densetuft hairsedge
  Bulbostylis capillaris var. crebra Fernald -- not accepted
  Bulbostylis capillaris var. isopoda Fernald -- not accepted
  Bulbostylis ciliatifolia (Elliott) Fernald -- accepted -- capillary hairsedge
  Bulbostylis ciliatifolia var. ciliatifolia (Elliott) Fernald -- accepted -- capillary hairsedge
  Bulbostylis ciliatifolia var. coarctata (Elliott) Kral -- accepted -- capillary hairsedge
  Bulbostylis coarctata (Elliott) Fernald -- not accepted
  Bulbostylis curassavica (Britton) Kük. ex Ekman -- accepted -- West Indian hairsedge
  Bulbostylis fendleri C.B. Clarke -- not accepted
  Bulbostylis funckii (Steud.) C.B. Clarke -- accepted -- Funck hairsedge, Funck's hairsedge
  Bulbostylis hirta (Thunb.) Svenson -- accepted -- rough hairsedge
  Bulbostylis junciformis (Kunth) C.B. Clarke -- accepted -- Caribbean hairsedge
  Bulbostylis juncoides (Vahl) Kük. -- accepted -- rush hairsedge
  Bulbostylis juncoides var. ampliceps Kük. ex Osten -- not accepted
  Bulbostylis papillosa Kük. -- not accepted
  Bulbostylis pauciflora (Liebm.) C.B. Clarke -- accepted -- fewflower hairsedge
  Bulbostylis schaffneri (Boeckeler) C.B. Clarke -- accepted -- Schaffner's hairsedge
  Bulbostylis stenophylla (Elliott) C.B. Clarke -- accepted -- sandy field hairsedge
  Bulbostylis subaphylla C.B. Clarke -- accepted
  Bulbostylis vestita (Kunth) C.B. Clarke -- accepted -- tufted hairsedge
  Bulbostylis warei (Torr.) C.B. Clarke -- accepted -- Ware's hairsedge
  Carex L. -- accepted -- carex, laîches, rouches, sedge, sedge species, sedges
  Carex abacta L.H. Bailey -- not accepted
  Carex abbreviata J.D. Prescott ex Boott -- not accepted
  Carex abdita E.P. Bicknell -- not accepted
  Carex ablata L.H. Bailey -- not accepted
  Carex aboriginum M.E. Jones -- accepted -- Indian Valley sedge
  Carex aboriginum auct. non M.E. Jones, 1910 -- not accepted -- Indian Valley sedge
  Carex abrupta Mack. -- accepted -- abruptbeak sedge
  Carex abscondita Mack. -- accepted -- thicket sedge
  Carex abscondita var. glauca (Chapm.) Fernald -- not accepted
  Carex abscondita var. rostellata Fernald -- not accepted
  Carex absconditiformis Fernald -- not accepted
  Carex accedens T. Holm -- not accepted
  Carex acidicola Naczi -- accepted
  Carex acuta auct. non L. -- not accepted
  Carex acutiformis Ehrh. -- accepted -- lesser pond sedge
  Carex acutina var. tenuior L.H. Bailey -- not accepted
  Carex acutinella Mack. -- not accepted
  Carex adelostoma V.I. Krecz. -- accepted -- circumpolar sedge
  Carex adusta Boott -- accepted -- lesser brown sedge
  Carex aenea Fernald -- not accepted -- bronze sedge
  Carex aestivalis M.A. Curtis ex A. Gray -- accepted -- summer sedge
  Carex aggregata Mack. -- accepted -- glomerate sedge
  Carex agrostoides Mack. -- not accepted -- grass-leaf sedge, grassleaf sedge
  Carex alata Torr. -- accepted -- broadwing sedge
  Carex albicans Willd. ex Spreng. -- accepted -- whitetinge sedge
  Carex albicans auct. non Willd. ex Spreng. -- not accepted -- whitetinge sedge
  Carex albicans var. albicans Willd. ex Spreng. -- accepted -- whitetinge sedge
  Carex albicans var. australis (L.H. Bailey) Rettig -- accepted -- stellate sedge
  Carex albicans var. emmonsii (Dewey ex Torr.) Rettig -- accepted -- Emmons' sedge
  Carex albida L.H. Bailey -- accepted -- white sedge
  Carex albolutescens Schwein. -- accepted -- greenwhite sedge
  Carex albonigra Mack. -- accepted -- black-and-white sedge, blackandwhite sedge
  Carex albursina E. Sheld. -- accepted -- white bear sedge
  Carex allegheniensis Mack. -- not accepted
  Carex alligata Boott -- accepted -- Hawai'i sedge
  Carex alligata var. degeneri R.W. Krauss -- not accepted
  Carex alma L.H. Bailey -- accepted -- Alma sedge, sturdy sedge
  Carex alopecoidea Tuck. -- accepted -- fox-tail sedge, foxtail sedge
  Carex amblyorhyncha V.I. Krecz. -- not accepted
  Carex amblyorhyncha ssp. pseudolagopina (T.J. Sřrensen) Böcher -- not accepted
  Carex ambusta Boott -- not accepted
  Carex amphibola Steud. -- accepted -- amphibious sedge, eastern narrowleaf sedge
  Carex amphibola var. amphibola Steud. -- not accepted -- eastern narrowleaf sedge
  Carex amphibola var. globosa (L.H. Bailey) L.H. Bailey -- not accepted -- eastern narrowleaf sedge
  Carex amphibola var. rigida (L.H. Bailey) Fernald -- not accepted -- eastern narrowleaf sedge
  Carex amphibola var. turgida Fernald -- not accepted -- eastern narrowleaf sedge
  Carex amphigena (Fernald) Mack. -- not accepted
  Carex amplectens Mack. -- accepted -- claspbract sedge
  Carex amplifolia Boott -- accepted -- bigleaf sedge
  Carex amplisquama F.J. Herm. -- not accepted -- Dixie sedge
  Carex anceps Muhl. -- not accepted
  Carex angarae Steud. -- not accepted
  Carex anguillata Drejer -- not accepted -- snail sedge
  Carex angustata Boott -- accepted -- common meadow sedge, widefruit sedge
  Carex angustior Mack. -- not accepted
  Carex angustior var. gracilenta R.T. Clausen & Wahl -- not accepted
  Carex angustisquama Franch. -- accepted
  Carex annectens (E.P. Bicknell) E.P. Bicknell -- accepted -- yellowfruit sedge
  Carex annectens var. xanthocarpa (Kük.) Wiegand -- not accepted
  Carex anthoxanthea J. Presl & C. Presl -- accepted -- grassyslope arctic sedge
  Carex aperta Boott -- accepted -- Columbian sedge
  Carex apoda Clokey -- not accepted
  Carex appalachica J.M. Webber & P.W. Ball -- accepted -- Appalachian sedge, carex des Appalaches
  Carex aquatilis Wahlenb. -- accepted -- water sedge
  Carex aquatilis ssp. altior (Rydb.) Hultén -- not accepted
  Carex aquatilis ssp. stans (Drejer) Hultén -- not accepted
  Carex aquatilis var. altior (Rydb.) Fernald -- not accepted
  Carex aquatilis var. aquatilis Wahlenb. -- accepted -- leafy tussock sedge, water sedge
  Carex aquatilis var. dives (T. Holm) Kük. -- accepted -- Sitka sedge
  Carex aquatilis var. minor Boott -- accepted -- water sedge
  Carex aquatilis var. sitchensis (Prescott ex Bong.) Kelso -- not accepted
  Carex aquatilis var. stans (Drejer) Boott -- not accepted -- water sedge
  Carex aquatilis var. substricta Kük. -- accepted -- water sedge
  Carex arapahoensis Clokey -- accepted -- Arapaho sedge
  Carex arcta Boott -- accepted -- northern cluster sedge
  Carex arctata Boott ex Hook. -- accepted -- drooping woodland sedge
  Carex arctiformis Mack. -- accepted -- polar sedge
  Carex arctogena Harry Sm. -- not accepted
  Carex arenaria L. -- accepted -- sand sedge
  Carex arenicola F. Schmidt -- not accepted
  Carex arenicola ssp. pansa (L.H. Bailey) T. Koyama & Calder -- not accepted
  Carex argyrantha Tuck. -- accepted -- hay sedge
  Carex arkansana (L.H. Bailey) L.H. Bailey -- accepted -- Arkansas sedge
  Carex artitecta Mack. -- not accepted -- dry woods sedge
  Carex artitecta var. subtilirostris F.J. Herm. -- not accepted
  Carex asa-grayi L.H. Bailey -- not accepted
  Carex assiniboinensis W. Boott -- accepted -- Assiniboia sedge
  Carex athabascensis F.J. Herm. -- not accepted
  Carex atherodes Spreng. -- accepted -- awned sedge, carex épi-de-blé, slough sedge, wheat sedge
  Carex athrostachya Olney -- accepted -- slender-beak sedge, slenderbeak sedge
  Carex atlantica L.H. Bailey -- accepted -- prickly bog sedge
  Carex atlantica ssp. atlantica L.H. Bailey -- accepted -- Atlantic sedge, prickly bog sedge
  Carex atlantica ssp. capillacea (L.H. Bailey) Reznicek -- accepted -- howe sedge, prickly bog sedge
  Carex atlantica var. capillacea (L.H. Bailey) Cronquist -- not accepted
  Carex atlantica var. capillaceae (L.H. Bailey) Cronquist -- not accepted
  Carex atlantica var. incomperta (E.P. Bicknell) F.J. Herm. -- not accepted
  Carex atrata auct. non L. -- not accepted
  Carex atrata auct. non L. -- not accepted
  Carex atrata L. -- accepted
  Carex atrata ssp. atrosquama (Mack.) Hultén -- not accepted
  Carex atrata var. atrosquama (Mack.) Cronquist -- not accepted
  Carex atrata var. chalciolepis (T. Holm) Kük. -- not accepted
  Carex atrata var. erecta W. Boott -- not accepted
  Carex atratiformis Britton -- accepted -- black sedge, scrabrous black sedge
  Carex atratiformis ssp. raymondii (Calder) A.E. Porsild -- not accepted
  Carex atrofusca Schkuhr -- accepted -- darkbrown sedge
  Carex atrofusca var. atrofusca Schkuhr -- not accepted -- darkbrown sedge
  Carex atrofusca var. major (Boeckeler) Raymond -- not accepted -- darkbrown sedge
  Carex atrosquama Mack. -- accepted -- lesser blackscale sedge
  Carex aurea Nutt. -- accepted -- golden sedge, golden-fruit sedge
  Carex aureolensis Steud. -- accepted
  Carex austrina Mack. -- accepted -- southern sedge
  Carex austroalpina Bech. -- accepted
  Carex austrocaroliniana L.H. Bailey -- accepted -- tarheel sedge
  Carex baccans Nees -- accepted
  Carex backii Boott -- accepted -- Back's sedge, carex de Back, rocky mountain sedge
  Carex backii var. saximontana (Mack.) B. Boivin -- not accepted
  Carex backii var. subrostrata (Bates) Dorn -- not accepted
  Carex baileyi Britton -- accepted -- Bailey's sedge
  Carex baltzellii Chapm. ex Dewey -- accepted -- Baltzell's sedge
  Carex barbarae Dewey -- accepted -- Santa Barbara sedge
  Carex barrattii Schwein. & Torr. -- accepted -- Barratt's sedge
  Carex basiantha Steud. -- accepted -- Willdenow's sedge
  Carex bayardii Fernald -- not accepted
  Carex bebbii Olney ex Fernald -- accepted -- Bebb sedge, Bebb's sedge
  Carex behringensis C.B. Clarke -- not accepted
  Carex bella L.H. Bailey -- accepted -- showy sedge, southwestern showy sedge
  Carex bicknellii Britton -- accepted -- Bicknell's sedge, carex de Bicknell
  Carex bicknellii var. bicknellii Britton -- not accepted -- Bicknell's sedge
  Carex bicknellii var. opaca F.J. Herm. -- not accepted -- Bicknell's sedge
  Carex bicolor Bellardi ex All. -- accepted -- twocolor sedge
  Carex bifida W. Boott -- not accepted
  Carex bigelowii Torr. ex Schwein. -- accepted -- Bigelow's sedge
  Carex bigelowii ssp. bigelowii Torr. ex Schwein. -- accepted -- Bigelow's sedge
  Carex bigelowii ssp. hyperborea (Drejer) Böcher -- not accepted
  Carex bigelowii ssp. lugens (T. Holm) T.V. Egorova -- accepted -- spruce muskeg sedge
  Carex billingsii (O.W. Knight) Kirschb. -- not accepted -- Billings' sedge
  Carex biltmoreana Mack. -- accepted -- Biltmore sedge, stiff sedge
  Carex bipartita All. -- not accepted -- twotipped sedge
  Carex bipartita var. amphigena (Fernald) Polunin -- not accepted
  Carex bipartita var. austromontana F.J. Herm. -- not accepted
  Carex bipartita var. glareosa (Schkuhr ex Wahlenb.) Polunin -- not accepted
  Carex blanda Dewey -- accepted -- bland sedge, eastern woodland sedge, woodland sedge
  Carex boecheriana Á. Löve, D. Löve & Raymond -- not accepted -- Boecher's sedge
  Carex bolanderi Olney -- accepted -- Bolander sedge, Bolander's sedge, wood sedge
  Carex bonanzensis Britton -- accepted -- Yukon sedge
  Carex bonplandii Kunth -- accepted -- Bonpland's sedge
  Carex bordzilowskii V.I. Krecz. -- not accepted
  Carex brachyglossa Mack. -- not accepted
  Carex brainerdii Mack. -- accepted -- Brainerd's sedge
  Carex brevicaulis Mack. -- accepted -- shortstem sedge
  Carex breviligulata Mack. -- not accepted
  Carex brevior (Dewey) Mack. -- accepted -- brevior sedge, fescue sedge, shortbeak sedge
  Carex brevior var. crawei (W. Boott) B. Boivin -- not accepted
  Carex brevipes W. Boott ex Mack. -- not accepted
  Carex breweri Boott -- accepted -- Brewer's sedge
  Carex breweri var. breweri Boott -- not accepted -- sedge
  Carex breweri var. paddoensis (Suksd.) Cronquist -- not accepted
  Carex brittoniana L.H. Bailey -- not accepted -- Britton's sedge
  Carex bromoides Schkuhr ex Willd. -- accepted -- brome-like sedge, bromelike sedge
  Carex bromoides ssp. bromoides Schkuhr ex Willd. -- accepted -- brome-like sedge
  Carex bromoides ssp. montana Naczi -- accepted -- brome-like sedge
  Carex bromoides var. bromoides Schkuhr ex Willd. -- not accepted -- bromelike sedge
  Carex bromoides var. montana Naczi -- not accepted -- bromelike sedge
  Carex brunnea Thunb. -- accepted -- greater brown sedge
  Carex brunnescens (Pers.) Poir. -- accepted -- brownish sedge
  Carex brunnescens ssp. alaskana Kalela -- not accepted -- Alaska brownish sedge
  Carex brunnescens ssp. brunnescens (Pers.) Poir. -- accepted -- brownish sedge
  Carex brunnescens ssp. pacifica Kalela -- not accepted -- Pacific brownish sedge
  Carex brunnescens ssp. sphaerostachya (Tuck.) Kalela -- accepted -- brownish sedge
  Carex brunnescens var. sphaerostachya (Tuck.) Kük. -- not accepted
  Carex brysonii Naczi -- accepted -- Bryson's sedge
  Carex bulbostylis Mack. -- accepted -- false hair sedge
  Carex bullata Schkuhr ex Willd. -- accepted -- button sedge
  Carex bushii Mack. -- accepted -- Bush's sedge
  Carex buxbaumii Wahlenb. -- accepted -- brown bog sedge, Buxbaum sedge, Buxbaum's sedge
  Carex buxbaumii var. macrostachya Hartm. -- not accepted
  Carex calcifugens Naczi -- accepted
  Carex californica L.H. Bailey -- accepted -- California sedge
  Carex camporum Mack. -- not accepted
  Carex campylocarpa T. Holm -- not accepted
  Carex campylocarpa ssp. affinis Maguire & A.H. Holmgren -- not accepted
  Carex canariensis Kük. -- accepted
  Carex canescens L. -- accepted -- silver sedge, silvery sedge
  Carex canescens ssp. arctiformis (Mack.) Calder & Roy L. Taylor -- not accepted
  Carex canescens ssp. canescens L. -- accepted -- silvery sedge
  Carex canescens ssp. disjuncta (Fernald) Toivonen -- accepted -- silvery sedge
  Carex canescens var. disjuncta Fernald -- not accepted
  Carex canescens var. subloliacea Laest. -- not accepted
  Carex capillaris L. -- accepted -- hair sedge, hair-like sedge, hairlike sedge
  Carex capillaris ssp. chlorostachys (Steven) Á. Löve, D. Löve & Raymond -- not accepted
  Carex capillaris ssp. krausei (Boeckeler) Böcher -- not accepted
  Carex capillaris ssp. porsildiana (Polunin) Böcher -- not accepted
  Carex capillaris ssp. robustior (Drejer ex Lange) Böcher -- not accepted
  Carex capillaris var. elongata Olney ex Fernald -- not accepted
  Carex capillaris var. fuscidula (V.I. Krecz.) Á. Löve & D. Löve -- not accepted
  Carex capillaris var. krausei (Boeckeler) Crantz -- not accepted
  Carex capillaris var. major Drejer ex Blytt -- not accepted
  Carex capillaris var. williamsii (Britton) B. Boivin -- not accepted
  Carex capitata L. -- accepted -- arctic sedge, capitate sedge
  Carex capitata ssp. arctogena (Harry Sm.) Hiitonen -- not accepted -- capitate sedge
  Carex capitata ssp. capitata L. -- not accepted -- capitate sedge
  Carex capitata var. arctogena (Harry Sm.) Hultén -- not accepted
  Carex careyana Torr. ex Dewey -- accepted -- Carey's sedge
  Carex caroliniana Schwein. -- accepted -- Carolina sedge
  Carex caroliniana var. cuspidata (Dewey) Shinners -- not accepted
  Carex caryophyllea Latourr. -- accepted -- vernal sedge
  Carex castanea Wahlenb. -- accepted -- chestnut sedge
  Carex cephalantha (L.H. Bailey) E.P. Bicknell -- not accepted
  Carex cephaloidea (Dewey) Dewey -- accepted -- thinleaf sedge
  Carex cephalophora Muhl. ex Willd. -- accepted -- oval-leaf sedge, oval-leaved sedge, ovalleaf sedge
  Carex cephalophora var. angustifolia Boott -- not accepted
  Carex cephalophora var. leavenworthii (Dewey) Kük. -- not accepted
  Carex cephalophora var. mesochorea (Mack.) Gleason -- not accepted
  Carex chalciolepis T. Holm -- accepted -- Holm sedge
  Carex chapmanii Steud. -- accepted -- Chapman's sedge
  Carex cherokeensis Schwein. -- accepted -- Cherokee sedge
  Carex chihuahuensis Mack. -- accepted -- Chihuahuan sedge
  Carex chimaphila T. Holm -- not accepted
  Carex chordorrhiza Ehrh. ex L. f. -- accepted -- creeping sedge, rope-root sedge
  Carex circinata C.A. Mey. -- accepted -- coiled sedge
  Carex collinsii Nutt. -- accepted -- Collins' sedge
  Carex colorata Mack. -- not accepted
  Carex communis L.H. Bailey -- accepted -- fibrousroot sedge
  Carex communis var. amplisquama (F.J. Herm.) Rettig -- accepted -- Dixie sedge
  Carex communis var. communis L.H. Bailey -- accepted -- fibrousroot sedge
  Carex comosa Boott -- accepted -- longhair sedge
  Carex complanata Torr. & Hook. -- accepted -- blue sedge, hirsute sedge
  Carex complanata var. hirsuta (Willd.) Gleason -- not accepted
  Carex concinna R. Br. -- accepted -- low northern sedge
  Carex concinnoides Mack. -- accepted -- northwestern sedge
  Carex congdonii L.H. Bailey -- accepted -- Congdon's sedge
  Carex conjuncta Boott -- accepted -- soft fox sedge
  Carex conoidea Schkuhr ex Willd. -- accepted -- open-field sedge, openfield sedge
  Carex consimilis T. Holm -- not accepted
  Carex constanceana Stacey -- accepted -- Contance's sedge
  Carex contigua Hoppe -- not accepted -- prickly sedge
  Carex convoluta Mack. -- not accepted
  Carex cordillerana Saarela & B.A. Ford -- accepted -- Cordilleran sedge
  Carex corrugata Fernald -- accepted -- prune-fruit sedge
  Carex costata Schwein. -- not accepted
  Carex crandallii Gand. -- not accepted
  Carex crawei Dewey -- accepted -- crawe sedge, Crawe's sedge
  Carex crawfordii Fernald -- accepted -- Crawford's sedge
  Carex crawfordii var. vigens Fernald -- not accepted
  Carex crebriflora Wiegand -- accepted -- coastal plain sedge, coastalplain sedge
  Carex crinita Lam. -- accepted -- fringed sedge
  Carex crinita var. brevicrinis Fernald -- accepted -- fringed sedge
  Carex crinita var. crinita Lam. -- accepted -- fringed sedge
  Carex crinita var. gynandra (Schwein.) Schwein. & Torr. -- not accepted
  Carex crinita var. minor Boott -- not accepted
  Carex crinita var. mitchelliana (M.A. Curtis) Gleason -- not accepted
  Carex crinita var. porteri (Olney) Fernald -- accepted -- Porter's fringed sedge
  Carex crinita var. simulans Fernald -- not accepted
  Carex cristatella Britton -- accepted -- crested sedge
  Carex crus-corvi Shuttlew. ex Kunze -- accepted -- ravenfoot sedge
  Carex cryptocarpa C.A. Mey. -- not accepted
  Carex cryptochlaena T. Holm -- not accepted
  Carex cryptolepis Mack. -- accepted -- northeastern sedge
  Carex cumberlandensis Naczi, Kral & Bryson -- accepted -- Cumberland sedge
  Carex cumulata (L.H. Bailey) Fernald -- accepted -- clustered sedge
  Carex curatorum Stacey -- accepted -- canyonlands sedge, Kaibab sedge
  Carex curta Gooden. -- not accepted
  Carex curta var. robustior (Kük.) B. Boivin -- not accepted
  Carex cusickii Mack. ex Piper & Beattie -- accepted -- Cusick's sedge
  Carex dasycarpa Muhl. -- accepted -- sandywoods sedge
  Carex davisii Schwein. & Torr. -- accepted -- Davis' sedge
  Carex davyi Mack. -- accepted -- Davy's sedge
  Carex debiliformis Mack. -- not accepted
  Carex debilis Michx. -- accepted -- white edge sedge
  Carex debilis ssp. pubera (A. Gray) Á. Löve & D. Löve -- not accepted
  Carex debilis ssp. rudgei (L.H. Bailey) Á. Löve & D. Löve -- not accepted
  Carex debilis var. debilis Michx. -- accepted -- white edge sedge
  Carex debilis var. intercursa Fernald -- accepted -- white edge sedge
  Carex debilis var. interjecta L.H. Bailey -- not accepted -- white edge sedge
  Carex debilis var. pubera A. Gray -- not accepted -- white edge sedge
  Carex debilis var. rudgei L.H. Bailey -- accepted -- white edge sedge
  Carex debilis var. strictior L.H. Bailey -- not accepted -- white edge sedge
  Carex decomposita Muhl. -- accepted -- cypressknee sedge
  Carex deflexa Hornem. -- accepted -- northern sedge
  Carex deflexa var. boottii L.H. Bailey -- accepted -- northern sedge
  Carex deflexa var. brevicaulis (Mack.) B. Boivin -- not accepted
  Carex deflexa var. deflexa Hornem. -- accepted -- northern sedge
  Carex deflexa var. rossii (Boott) L.H. Bailey -- not accepted
  Carex delicatula E.P. Bicknell -- not accepted
  Carex demareei Palmer -- not accepted -- Demaree's sedge
  Carex demissa Hornem. -- not accepted
  Carex densa (L.H. Bailey) L.H. Bailey -- accepted -- dense sedge
  Carex deweyana Schwein. -- accepted -- Dewey sedge, Dewey's sedge, round-fruit short-scale sedge
  Carex deweyana ssp. leptopoda (Mack.) Calder & Roy L. Taylor -- not accepted
  Carex deweyana var. bolanderi (Olney) W. Boott -- not accepted
  Carex deweyana var. collectanea Fernald -- accepted -- roundfruit sedge
  Carex deweyana var. deweyana Schwein. -- accepted -- Dewey sedge
  Carex deweyana var. leptopoda (Mack.) B. Boivin -- not accepted
  Carex deweyana var. sparsiflora L.H. Bailey -- not accepted
  Carex diandra Schrank -- accepted -- lesser panicled sedge, lesser tussock sedge
  Carex digitalis Willd. -- accepted -- slender wood sedge, slender woodland sedge
  Carex digitalis var. asymmetrica Fernald -- not accepted
  Carex digitalis var. digitalis Willd. -- accepted -- slender woodland sedge
  Carex digitalis var. floridana (L.H. Bailey) Naczi & Bryson -- accepted
  Carex digitalis var. macropoda Fernald -- accepted
  Carex diluta M. Bieb. -- accepted
  Carex dioica L. -- accepted
  Carex dioica ssp. gynocrates (Wormsk. ex Drejer) Hultén -- not accepted
  Carex dioica var. gynocrates (Wormsk. ex Drejer) Ostenf. -- not accepted
  Carex disperma Dewey -- accepted -- soft-leaf sedge, softleaf sedge, softleaved sedge
  Carex distans L. -- accepted -- distant sedge
  Carex distenta Kunze -- accepted -- widow's sedge
  Carex disticha Huds. -- accepted -- tworank sedge
  Carex diversistylis A. Roach -- not accepted
  Carex divisa Huds. -- accepted -- separated sedge
  Carex divulsa Stokes -- accepted -- grassland sedge
  Carex divulsa ssp. divulsa Stokes -- accepted -- grassland sedge, sedge
  Carex divulsa ssp. leersii (Kneuck.) W. Koch -- accepted -- Leers' sedge
  Carex douglasii Boott -- accepted -- Douglas sedge, Douglas' sedge
  Carex drummondiana Dewey -- not accepted
  Carex dudleyi Mack. -- not accepted -- Dudley's sedge
  Carex durifolia L.H. Bailey -- not accepted
  Carex durifolia var. subrostrata Bates -- not accepted
  Carex duriuscula C.A. Mey. -- accepted -- needleleaf sedge, spike-rush sedge
  Carex dutillyi O'Neill & Duman -- not accepted -- Dutilly's sedge
  Carex eastwoodiana Stacey -- not accepted
  Carex ebenea Rydb. -- accepted -- ebony sedge
  Carex eburnea Boott -- accepted -- bristle-leaf sedge, bristleleaf sedge
  Carex echinata Murray -- accepted -- prickly sedge, star sedge
  Carex echinata ssp. echinata Murray -- accepted -- star sedge, stellate sedge
  Carex echinata ssp. phyllomanica (W. Boott) Reznicek -- accepted -- star sedge
  Carex echinata var. angustata (J. Carey) L.H. Bailey -- not accepted
  Carex echinata var. conferta (Chapm.) L.H. Bailey -- not accepted
  Carex echinata var. phyllomanica (W. Boott) B. Boivin -- not accepted
  Carex edwardsiana E.L. Bridges & Orzell -- accepted -- Edwards Plateau sedge
  Carex egglestonii Mack. -- accepted -- Eggleston sedge, Eggleston's sedge
  Carex egregia Mack. -- not accepted
  Carex elachycarpa Fernald -- not accepted -- Aroostook sedge
  Carex elbertana Kelso -- not accepted
  Carex eleocharis L.H. Bailey -- not accepted
  Carex eleusinoides Turcz. ex Kunth -- accepted -- goosegrass sedge
  Carex elliottii Schwein. & Torr. -- accepted -- Elliott's sedge
  Carex elyniformis A.E. Porsild -- not accepted
  Carex elynoides T. Holm -- accepted -- black-root sedge, blackroot sedge
  Carex emmonsii Dewey ex Torr. -- not accepted
  Carex emmonsii var. australis (L.H. Bailey) Rettig -- not accepted
  Carex emmonsii var. muhlenbergii (A. Gray) Rettig -- not accepted
  Carex emoryi Dewey -- accepted -- Emory's sedge
  Carex enanderi Hultén -- not accepted
  Carex endlichii Kük. -- accepted
  Carex engelmannii L.H. Bailey -- accepted -- Engelmann sedge, Engelmann's sedge
  Carex epapillosa Mack. -- accepted -- different-nerve sedge
  Carex erxlebeniana Kelso -- not accepted
  Carex estesiana Kelso -- not accepted
  Carex eurycarpa T. Holm -- not accepted
  Carex eurycarpa var. attenuata Kük. -- not accepted
  Carex eurystachya F.J. Herm. -- not accepted
  Carex exilis Dewey -- accepted -- coastal sedge
  Carex exserta Mack. -- not accepted -- shorthair sedge
  Carex exsiccata L.H. Bailey -- accepted -- beaked sedge, western inflated sedge
  Carex extensa Gooden. -- accepted -- longbract sedge
  Carex ferruginea Scop. -- accepted
  Carex ferruginea ssp. macrostachys (Bertol.) Arcang. -- accepted
  Carex festiva Dewey -- not accepted
  Carex festiva var. decumbens T. Holm -- not accepted
  Carex festiva var. gracilis Olney -- not accepted
  Carex festiva var. pachystachya (Cham. ex Steud.) L.H. Bailey -- not accepted
  Carex festivella Mack. -- not accepted
  Carex festucacea Schkuhr ex Willd. -- accepted -- fescue sedge
  Carex festucacea var. brevior (Dewey) Fernald -- not accepted
  Carex feta L.H. Bailey -- accepted -- greensheath sedge
  Carex filifolia Nutt. -- accepted -- threadleaf sedge
  Carex filifolia var. erostrata Kük. -- accepted -- shorthair sedge
  Carex filifolia var. filifolia Nutt. -- accepted -- sedge
  Carex fissa Mack. -- accepted -- hammock sedge
  Carex fissa var. aristata F.J. Herm. -- accepted -- hammock sedge
  Carex fissa var. fissa Mack. -- accepted -- hammock sedge
  Carex fissuricola Mack. -- accepted -- canyon sedge, cleft sedge
  Carex flacca Schreb. -- accepted -- heath sedge
  Carex flaccidula Steud. -- not accepted
  Carex flaccifolia Mack. -- not accepted
  Carex flaccosperma Dewey -- accepted -- thinfruit sedge
  Carex flaccosperma var. flaccosperma Dewey -- not accepted -- thinfruit sedge
  Carex flaccosperma var. glaucodea (Tuck. ex Olney) Kük. -- not accepted
  Carex flava L. -- accepted -- yellow sedge
  Carex flava var. fertilis Peck -- not accepted
  Carex flava var. fertilis auct. non Peck -- not accepted
  Carex flava var. gaspensis Fernald -- not accepted
  Carex flava var. graminis L.H. Bailey -- not accepted
  Carex flava var. laxior (Kük.) Gleason -- not accepted
  Carex flava var. lepidocarpa (Tausch) Gord. -- not accepted
  Carex flava var. nelmesiana (Raymond) B. Boivin -- not accepted
  Carex flava var. rectirostra Gaudin -- not accepted
  Carex flexuosa Muhl. ex Willd. -- not accepted
  Carex floridana Schwein. -- accepted -- Florida sedge
  Carex foenea Willd. -- accepted -- dry-spike sedge, dryspike sedge, wind sedge
  Carex foenea var. enervis D.K. Evans & Mohlenbr. -- not accepted -- dryspike sedge
  Carex foenea var. foenea Willd. -- not accepted -- dry-spike sedge, dryspike sedge, silvertop sedge
  Carex foenea var. perplexa L.H. Bailey -- not accepted
  Carex foenea var. tuberculata F.J. Herm. -- not accepted -- dryspike sedge
  Carex foetida auct. non All. -- not accepted
  Carex foetida var. vernacula (L.H. Bailey) Kük. -- not accepted
  Carex folliculata L. -- accepted -- long sedge, northern long sedge
  Carex folliculata var. australis L.H. Bailey -- not accepted
  Carex formosa Dewey -- accepted -- handsome sedge
  Carex fracta Mack. -- accepted -- fragile sheath sedge
  Carex frankii Kunth -- accepted -- Frank's sedge
  Carex franklinii Boott -- not accepted
  Carex franklinii var. misandroides (Fernald) Raymond -- not accepted
  Carex fraseri Andrews -- not accepted
  Carex fraseriana Ker Gawl. -- not accepted
  Carex fuirenoides Gaudich. -- accepted
  Carex fuliginosa Schkuhr -- accepted -- shortleaved sedge
  Carex fuliginosa ssp. misandra (R. Br.) Nyman -- not accepted
  Carex fulvescens Mack. -- not accepted
  Carex fuscula d'Urv. -- not accepted
  Carex garberi Fernald -- accepted -- elk sedge, Garber's sedge
  Carex garberi ssp. bifaria (Fernald) Hultén -- not accepted
  Carex garberi var. bifaria Fernald -- not accepted
  Carex geophila Mack. -- accepted -- White Mountain sedge
  Carex geyeri Boott -- accepted -- elk sedge, Geyer's sedge
  Carex gholsonii Naczi & Cochrane -- accepted
  Carex gigantea Rudge -- accepted -- giant sedge
  Carex gigas (T. Holm) Mack. -- not accepted -- Siskiyou sedge
  Carex glacialis Mack. -- accepted -- glacial sedge
  Carex glacialis var. terrae-novae (Fernald) B. Boivin -- not accepted
  Carex glareosa Schkuhr ex Wahlenb. -- accepted -- lesser saltmarsh sedge
  Carex glareosa ssp. glareosa Schkuhr ex Wahlenb. -- accepted -- lesser saltmarsh sedge
  Carex glareosa ssp. glareosa var. amphigena Fernald -- not accepted -- lesser saltmarsh sedge
  Carex glareosa ssp. glareosa var. glareosa Schkuhr ex Wahlenb. -- not accepted -- lesser saltmarsh sedge
  Carex glareosa ssp. pribylovensis (Macoun) G. Halliday & Chater -- accepted -- lesser saltmarsh sedge
  Carex glareosa var. amphigena Fernald -- not accepted -- lesser saltmarsh sedge
  Carex glareosa var. glareosa Schkuhr ex Wahlenb. -- not accepted -- lesser saltmarsh sedge
  Carex glauca Scop. -- not accepted
  Carex glaucescens Elliott -- accepted -- clustered sedge, southern waxy sedge
  Carex glaucodea Tuck. ex Olney -- accepted -- blue sedge
  Carex globosa Boott -- accepted -- roundfruit sedge
  Carex gmelinii Hook. & Arn. -- accepted -- Gmelin's sedge
  Carex godfreyi Naczi -- accepted -- Godfrey's sedge
  Carex goodenowii J. Gay -- not accepted
  Carex gracilescens Steud. -- accepted -- slender looseflower sedge
  Carex gracilior Mack. -- accepted -- slender sedge
  Carex gracillima Schwein. -- accepted -- graceful sedge
  Carex gracillima var. macerrima Fernald & Wiegand -- not accepted
  Carex grahamii Boott -- not accepted
  Carex granularis Muhl. ex Willd. -- accepted -- limestone meadow sedge, limestone-meadow sedge
  Carex granularis var. granularis Muhl. ex Willd. -- not accepted -- limestone meadow sedge, limestone-meadow sedge
  Carex granularis var. haleana (Olney) Porter -- not accepted -- limestone meadow sedge, limestone-meadow sedge
  Carex granularis var. recta Dewey -- not accepted
  Carex gravida L.H. Bailey -- accepted -- heavy sedge
  Carex gravida var. gravida L.H. Bailey -- not accepted -- heavy sedge
  Carex gravida var. lunelliana (Mack.) F.J. Herm. -- not accepted -- heavy sedge
  Carex grayi J. Carey -- accepted -- Gray's sedge
  Carex grayi var. hispidula A. Gray -- not accepted
  Carex grisea Wahlenb. -- accepted -- inflated narrow-leaf sedge
  Carex grisea var. amphibola (Steud.) Kük. -- not accepted
  Carex gymnoclada T. Holm -- not accepted
  Carex gynandra Schwein. -- accepted -- nodding sedge
  Carex gynocrates Wormsk. ex Drejer -- accepted -- bog sedge, northern bog sedge
  Carex gynodynama Olney -- accepted -- Olney's hairy sedge
  Carex haleana Olney -- not accepted
  Carex halleri Gunnerus -- not accepted
  Carex halliana L.H. Bailey -- accepted -- Hall's sedge
  Carex hallii L.H. Bailey, non Olney -- not accepted -- deer sedge
  Carex hallii Olney -- accepted -- deer sedge
  Carex halophila F. Nyl. -- not accepted
  Carex halophila var. flavicans (F. Nyl.) B. Boivin -- not accepted
  Carex harfordii Mack. -- accepted -- Harford's sedge
  Carex harperi Fernald -- not accepted
  Carex hartmanii Cajander -- accepted
  Carex hassei L.H. Bailey -- accepted -- Hasse's sedge, salt sedge, saltsedge
  Carex hawaiiensis H. St. John -- not accepted
  Carex haydeniana Olney -- accepted -- cloud sedge, Hayden sedge, Hayden's sedge
  Carex haydenii Dewey -- accepted -- cloud sedge, Hayden's sedge
  Carex haysii S.L. Welsh -- not accepted -- Hays' sedge
  Carex heleonastes L. f. -- accepted -- Hudson Bay sedge
  Carex heleonastes ssp. heleonastes L. f. -- not accepted -- Hudson Bay sedge
  Carex heleonastes ssp. neurochlaena (T. Holm) Böcher -- not accepted -- Hudson Bay sedge
  Carex heliophila Mack. -- not accepted
  Carex helleri Mack. -- accepted -- Heller's sedge, Sierra sedge
  Carex hendersonii L.H. Bailey -- accepted -- Henderson's sedge
  Carex hepburnii Boott -- not accepted
  Carex heteroneura W. Boott -- accepted -- different nerve sedge, different-nerve sedge, nerve sedge
  Carex heteroneura var. brevisquama F.J. Herm. -- not accepted -- different nerve sedge, different-nerve sedge
  Carex heteroneura var. chalciolepis (T. Holm) F.J. Herm. -- not accepted -- Holm sedge, Holm's sedge, nerve sedge
  Carex heteroneura var. epapillosa (Mack.) F.J. Herm. -- not accepted -- different nerve sedge, different-nerve sedge, nerve sedge
  Carex heteroneura var. heteroneura W. Boott -- not accepted -- different nerve sedge, different-nerve sedge
  Carex heterostachya Bunge -- accepted -- different-spike sedge, Fuller's sedge
  Carex hindsii C.B. Clarke -- not accepted
  Carex hirsutella Mack. -- accepted -- fuzzy wuzzy sedge, hirsute sedge
  Carex hirta L. -- accepted -- hammer sedge
  Carex hirtifolia Mack. -- accepted -- pubescent sedge
  Carex hirtissima W. Boott -- accepted -- fuzzy sedge
  Carex hitchcockiana Dewey -- accepted -- carex de Hitchcock, Hitchcock's sedge
  Carex holostoma Drejer -- accepted -- arctic marsh sedge
  Carex hoodii Boott -- accepted -- hood sedge, Hood's sedge
  Carex hookerana Dewey -- accepted -- Hooker's sedge
  Carex hookeriana Dewey -- not accepted -- Hooker's sedge
  Carex hordeistichos Vill. -- accepted
  Carex hormathodes Fernald -- accepted -- marsh straw sedge
  Carex hornschuchiana Hoppe -- not accepted
  Carex hostiana DC. -- accepted -- carex de Host, host sedge
  Carex hostiana var. laurentiana Fernald & Wiegand -- not accepted
  Carex houghtoniana Torr. ex Dewey -- accepted -- Houghton's sedge
  Carex houghtonii Torr. ex Dewey -- not accepted
  Carex houstonii Torr. -- accepted -- Houston's sedge
  Carex howei Mack. -- not accepted
  Carex howei var. capillacea (L.H. Bailey) Fernald -- not accepted
  Carex howellii L.H. Bailey -- not accepted
  Carex hyalina Boott -- accepted -- tissue sedge
  Carex hyalinolepis Steud. -- accepted -- shoreline sedge
  Carex hystericina Muhl. ex Willd. -- accepted -- bottlebrush sedge, porcupine sedge
  Carex idahoa L.H. Bailey -- accepted -- Idaho sedge
  Carex ignota Dewey -- not accepted
  Carex illota L.H. Bailey -- accepted -- sheep sedge, smallhead sedge
  Carex impressa (S.H. Wright) Mack. -- not accepted
  Carex impressinervia Bryson, Kral & Manhart -- accepted -- ravine sedge
  Carex incomperta E.P. Bicknell -- not accepted
  Carex incondita F.J. Herm. -- not accepted
  Carex incurva Lightf. -- not accepted
  Carex incurviformis Mack. -- accepted -- coastal sand sedge
  Carex incurviformis var. danaensis (Stacey) F.J. Herm. -- not accepted -- coastal sand sedge
  Carex incurviformis var. incurviformis Mack. -- not accepted -- coastal sand sedge
  Carex infirminervia Naczi -- accepted
  Carex inflata Huds. -- not accepted
  Carex inflata var. utriculata (Boott) Druce -- not accepted
  Carex inops L.H. Bailey -- accepted -- long-stolon sedge, longstolon sedge
  Carex inops ssp. heliophila (Mack.) Crins -- accepted -- sun sedge
  Carex inops ssp. inops L.H. Bailey -- accepted -- long-stolon sedge
  Carex integra Mack. -- accepted -- smoothbead sedge, smoothbeak sedge
  Carex interior L.H. Bailey -- accepted -- inland sedge
  Carex interior ssp. charlestonensis Clokey -- not accepted
  Carex interior var. capillacea L.H. Bailey -- not accepted
  Carex interior var. keweenawensis F.J. Herm. -- not accepted
  Carex interrupta Boeckeler -- accepted -- greenfruit sedge
  Carex interrupta var. distenta Kük. -- not accepted
  Carex intumescens Rudge -- accepted -- greater bladder sedge
  Carex intumescens var. fernaldii L.H. Bailey -- not accepted
  Carex inversa R. Br. -- accepted -- knob sedge
  Carex invisa L.H. Bailey -- not accepted
  Carex involuta (Bab.) Syme -- not accepted
  Carex jacobi-peteri Hultén -- not accepted -- Anderson sedge
  Carex jamesii Schwein. -- accepted -- James' sedge
  Carex jepsonii J.T. Howell -- not accepted
  Carex jimcalderi B. Boivin -- not accepted
  Carex jonesii L.H. Bailey -- accepted -- Jones sedge, Jones' sedge
  Carex joorii L.H. Bailey -- accepted -- cypress swamp sedge
  Carex josselynii (Fernald) Mack. ex Pease -- not accepted -- Josselyn's sedge
  Carex juniperorum Catling, Reznicek & Crins -- accepted -- juniper sedge
  Carex katahdinensis Fernald -- not accepted
  Carex kauaiensis R.W. Krauss -- accepted -- Kauai sedge
  Carex kelloggii W. Boott -- not accepted
  Carex klamathensis B.L. Wilson & Janeway -- accepted
  Carex kobomugi Ohwi -- accepted -- Japanese sedge
  Carex kokrinensis A.E. Porsild -- not accepted
  Carex kraliana Naczi & Bryson -- accepted
  Carex krausei Boeckeler -- accepted -- Krause's sedge
  Carex krausei ssp. krausei Boeckeler -- not accepted -- Krause's sedge
  Carex krausei ssp. porsildiana (Polunin) Á. Löve, D. Löve & Raymond -- not accepted -- Porsild's sedge
  Carex lachenalii Schkuhr -- accepted -- twotipped sedge
  Carex lacustris Willd. -- accepted -- hairy sedge, lakebank sedge
  Carex lacustris var. laxiflora Dewey -- not accepted
  Carex laeviconica Dewey -- accepted -- smooth-cone sedge, smoothcone sedge
  Carex laeviculmis Meinsh. -- accepted -- smoothstem sedge
  Carex laevivaginata (Kük.) Mack. -- accepted -- smoothsheath sedge, woolly sedge
  Carex lanceata Dewey -- not accepted
  Carex languinosa Michx. -- not accepted
  Carex lanuginosa Michx. -- not accepted
  Carex lanuginosa auct. non Michx. -- not accepted -- woolly sedge
  Carex lanuginosa var. americana (Fernald) B. Boivin -- not accepted
  Carex lapponica O. Lang -- accepted -- Lapland sedge
  Carex laricina Mack. ex Bright -- not accepted
  Carex lasiocarpa Ehrh. -- accepted -- woolly-fruit sedge, woollyfruit sedge
  Carex lasiocarpa ssp. americana (Fernald) D. Löve & J.-P.Bernard -- not accepted
  Carex lasiocarpa var. americana Fernald -- not accepted -- American woollyfruit sedge, woolly-fruit sedge
  Carex lasiocarpa var. latifolia (Boeckeler) Gilly -- not accepted
  Carex latebracteata Waterf. -- accepted -- Waterfall's sedge
  Carex lativena S.D. Jones & G.D. Jones -- accepted -- broadvein sedge
  Carex laxa Wahlenb. -- accepted -- weak sedge
  Carex laxiculmis Schwein. -- accepted -- carex ŕ tiges faibles, spreading sedge
  Carex laxiculmis var. copulata (L.H. Bailey) Fernald -- accepted -- spreading sedge
  Carex laxiculmis var. laxiculmis Schwein. -- accepted -- spreading sedge
  Carex laxiflora Lam. -- accepted -- broad looseflower sedge
  Carex laxiflora var. angustifolia Dewey -- not accepted
  Carex laxiflora var. blanda (Dewey) Boott -- not accepted
  Carex laxiflora var. gracillima Boott -- not accepted
  Carex laxiflora var. latifolia Boott -- not accepted
  Carex laxiflora var. laxiflora Lam. -- not accepted -- broad looseflower sedge
  Carex laxiflora var. ormostachya (Wiegand) Gleason -- not accepted
  Carex laxiflora var. patulifolia (Dewey) J. Carey -- not accepted
  Carex laxiflora var. purpurifera (Mack.) Gleason -- not accepted
  Carex laxiflora var. serrulata F.J. Herm. -- not accepted -- broad looseflower sedge
  Carex laxiflora var. varians L.H. Bailey -- not accepted
  Carex leavenworthii Dewey -- accepted -- Leavenworth's sedge
  Carex leersii Willd. -- not accepted
  Carex leiophylla Mack. -- not accepted
  Carex lemmonii W. Boott -- accepted -- Lemmon's sedge
  Carex lenticularis Michx. -- accepted -- lakeshore sedge, shore sedge, tufted sedge
  Carex lenticularis var. albimontana Dewey -- not accepted
  Carex lenticularis var. blakei Dewey -- not accepted
  Carex lenticularis var. dolia (M.E. Jones) L.A. Standl. -- accepted -- Enander's sedge
  Carex lenticularis var. eucycla Fernald & Wiegand -- not accepted
  Carex lenticularis var. impressa (L.H. Bailey) L.A. Standl. -- accepted -- fewrib sedge, lakeshore sedge
  Carex lenticularis var. lenticularis Michx. -- accepted -- lakeshore sedge
  Carex lenticularis var. limnophila (T. Holm) Cronquist -- accepted -- lakeshore sedge
  Carex lenticularis var. lipocarpa (T. Holm) L.A. Standl. -- accepted -- Kellogg sedge, Kellogg's sedge
  Carex lenticularis var. merens Howe -- not accepted
  Carex lenticularis var. pallida (W. Boott) Dorn -- not accepted
  Carex lepidocarpa Tausch -- not accepted
  Carex leporina auct. non L. -- not accepted -- leporina sedge
  Carex leporinella Mack. -- accepted -- hare sedge, Sierra hare sedge, Sierrahare sedge
  Carex leptalea Wahlenb. -- accepted -- bristlestalked sedge, bristly-stalk sedge, bristlystalked sedge
  Carex leptalea ssp. harperi (Fernald) W. Stone -- not accepted -- Harper's sedge
  Carex leptalea ssp. leptalea Wahlenb. -- not accepted -- bristlystalked sedge
  Carex leptalea ssp. pacifica Calder & Roy L. Taylor -- not accepted -- Pacific bristlystalked sedge
  Carex leptalea var. harperi (Fernald) Weath. & Griscom -- not accepted
  Carex leptalea var. tayloris B. Boivin nom. inq. -- not accepted
  Carex leptonervia (Fernald) Fernald -- accepted -- nerveless woodland sedge
  Carex leptopoda Mack. -- accepted -- shortscale sedge, taperfruit shortscale sedge
  Carex leucodonta T. Holm -- not accepted -- Huachuca Mountain sedge, White sedge
  Carex limnaea T. Holm -- not accepted
  Carex limnophila F.J. Herm. -- not accepted
  Carex limosa L. -- accepted -- mud sedge
  Carex liparocarpos Gaudin -- accepted
  Carex liparocarpos ssp. bordzilowskii (V.I. Krecz.) T.V. Egorova -- accepted
  Carex livida (Wahlenb.) Willd. -- accepted -- livid sedge
  Carex livida var. grayana (Dewey) Fernald -- not accepted
  Carex livida var. radicaulis Paine -- not accepted -- livid sedge
  Carex livida var. rufiniformis Fernald -- not accepted -- livid sedge
  Carex loliacea L. -- accepted -- ryegrass sedge
  Carex lonchocarpa Willd. -- accepted -- southern long sedge
  Carex longi Mack. -- not accepted
  Carex longii Mack. -- accepted -- Long's sedge
  Carex louisianica L.H. Bailey -- accepted -- Louisiana sedge
  Carex lucorum Willd. ex Link -- accepted -- Blue Ridge sedge
  Carex lucorum var. austrolucorum Rettig -- accepted -- Blue Ridge sedge
  Carex lucorum var. lucorum Willd. ex Link -- accepted -- Blue Ridge sedge
  Carex lugens T. Holm -- not accepted -- spruce muskeg sedge
  Carex lunelliana Mack. -- not accepted
  Carex lupuliformis Sartwell ex Dewey -- accepted -- carex faux-lupulina, false hop sedge
  Carex lupulina Muhl. ex Willd. -- accepted -- hop sedge
  Carex lupulina var. pedunculata A. Gray -- not accepted
  Carex lurida Wahlenb. -- accepted -- shallow sedge
  Carex lutea LeBlond -- accepted -- golden sedge, sulphur sedge
  Carex luzulifolia W. Boott -- accepted -- littleleaf sedge
  Carex luzulina Olney -- accepted -- woodrush sedge
  Carex luzulina var. ablata (L.H. Bailey) F.J. Herm. -- accepted -- serrate sedge, woodrush sedge
  Carex luzulina var. atropurpurea Dorn -- accepted -- woodrush sedge
  Carex luzulina var. luzulina Olney -- accepted -- woodrush sedge
  Carex lyallii Boott -- not accepted
  Carex lyngbyei Hornem. -- accepted -- Lyngbye's sedge
  Carex lyngbyei var. robusta (L.H. Bailey) Cronquist -- not accepted
  Carex mackenziei V.I. Krecz. -- accepted -- Mackenzie's sedge
  Carex macloviana d'Urv. -- accepted -- falkland island sedge, thickhead sedge
  Carex macloviana ssp. festivella (Mack.) Á. Löve & D. Löve -- not accepted
  Carex macloviana ssp. haydeniana (Olney) Roy L. Taylor & MacBryde -- not accepted
  Carex macloviana ssp. macloviana d'Urv. -- not accepted -- Falkland Island sedge
  Carex macloviana ssp. pachystachya (Cham. ex Steud.) Hultén -- not accepted
  Carex macloviana ssp. subfusca (W. Boott) T. Koyama -- not accepted -- brown sedge
  Carex macloviana var. microptera (Mack.) B. Boivin -- not accepted
  Carex macloviana var. pachystachya (Cham. ex Steud.) Kük. -- not accepted
  Carex macrocephala Willd. ex Spreng. -- accepted -- largehead sedge
  Carex macrocephala var. bracteata T. Holm -- not accepted -- largehead sedge
  Carex macrocephala var. macrocephala Willd. ex Spreng. -- not accepted -- largehead sedge
  Carex macrochaeta C.A. Mey. -- accepted -- longawn sedge
  Carex macrogyna Turcz. ex Steud. -- not accepted
  Carex macrostachys Bertol. -- not accepted -- largespike sedge
  Carex magellanica Lam. -- accepted -- boreal bog sedge
  Carex magellanica ssp. irrigua (Wahlenb.) Hultén -- accepted -- boreal bog sedge
  Carex magellanica ssp. magellanica Lam. -- accepted -- boreal bog sedge, little sedge
  Carex magellanica var. irrigua (Wahlenb.) Britton, Sterns & Poggenb. -- not accepted
  Carex magnifica Dewey ex Piper -- not accepted
  Carex magnifolia Mack. -- not accepted
  Carex mainensis Porter ex Britton -- not accepted
  Carex manhartii Bryson -- accepted -- Manhart's sedge
  Carex marginata Willd. -- not accepted
  Carex marina Dewey -- accepted -- sea sedge
  Carex marina ssp. marina Dewey -- not accepted -- sea sedge
  Carex marina ssp. pseudolagopina (T.J. Sřrensen) Böcher -- not accepted -- sea sedge
  Carex marina ssp. pseudolagopina var. pseudolagopina (T.J. Sřrensen) Böcher -- not accepted -- sea sedge
  Carex marina ssp. pseudolagopina var. solida (T.J. Sřrensen) Böcher -- not accepted -- sea sedge
  Carex mariposana L.H. Bailey ex Mack. -- accepted -- Mariposa sedge
  Carex maritima Gunnerus -- accepted -- curved sedge
  Carex maritima var. incurviformis (Mack.) B. Boivin -- not accepted
  Carex maritima var. setina (Christ) Fernald -- not accepted
  Carex mckittrickensis P.W. Ball -- accepted -- Guadalupe Mountain sedge
  Carex meadii Dewey -- accepted -- Mead sedge, Mead's sedge
  Carex media R. Br. -- accepted -- closedhead sedge
  Carex media var. stevenii (T. Holm) Fernald -- not accepted
  Carex melanocarpa Cham. -- accepted
  Carex melanostachya M. Bieb. ex Willd. -- accepted -- Great Plains sedge
  Carex melozitnensis A.E. Porsild -- not accepted
  Carex membranacea Hook. -- accepted -- fragile sedge
  Carex membranopacta L.H. Bailey -- not accepted
  Carex mendocinensis Olney -- accepted -- Mendocino sedge
  Carex merritt-fernaldii Mack. -- accepted -- Fernald's sedge
  Carex mertensii J.D. Prescott ex Bong. -- accepted -- Mertens' sedge
  Carex mesochorea Mack. -- accepted -- midland sedge
  Carex meyenii Nees -- accepted -- Meyen's sedge
  Carex michauxiana Boeckeler -- accepted -- Michaux's sedge
  Carex michelii Host -- accepted
  Carex michiganensis Dewey -- not accepted
  Carex microchaeta T. Holm -- accepted -- smallawned sedge
  Carex microchaeta ssp. microchaeta T. Holm -- accepted -- smallawned sedge
  Carex microchaeta ssp. nesophila (T. Holm) D.F. Murray -- accepted -- Bering Sea sedge
  Carex microdonta Torr. & Hook. -- accepted -- littletooth sedge
  Carex microglochin Wahlenb. -- accepted -- fewseeded bog sedge
  Carex microglochin ssp. microglochin Wahlenb. -- accepted -- fewseeded bog sedge
  Carex micropoda C.A. Mey. -- accepted
  Carex microptera Mack. -- accepted -- ovalhead sedge, smallwing sedge
  Carex microptera var. crassinervia F.J. Herm. -- not accepted
  Carex microptera var. limnophila (F.J. Herm.) Dorn -- not accepted
  Carex microrhyncha Mack. -- not accepted -- littlesnout sedge
  Carex miliaris Michx. -- not accepted
  Carex misandra R. Br. -- not accepted -- shortleaved sedge
  Carex misandroides Fernald -- not accepted -- manhater sedge
  Carex misera Buckley -- accepted -- wretched sedge
  Carex miserabilis Mack. -- not accepted
  Carex missouriensis P. Rothr. & Reznicek -- accepted -- Missouri sedge
  Carex mitchelliana M.A. Curtis -- accepted -- Mitchell's sedge
  Carex mohriana Mack. -- not accepted
  Carex molesta Mack. ex Bright -- accepted -- troublesome sedge
  Carex molestiformis Reznicek & P. Rothr. -- accepted -- frightful sedge
  Carex monile Tuck. -- not accepted
  Carex montanensis L.H. Bailey -- not accepted
  Carex montereyensis Mack. -- not accepted
  Carex montis-eeka Hillebr. -- accepted -- Molokai sedge
  Carex morrisseyi A.E. Porsild -- not accepted
  Carex morrowii Boott -- accepted
  Carex muehlenbergii Schkuhr ex Willd. -- accepted -- carex de Mühlenberg, Muhlenberg's sedge
  Carex muehlenbergii var. australis Olney ex L.H. Bailey -- not accepted
  Carex muehlenbergii var. austrina Small -- not accepted
  Carex muehlenbergii var. enervis Boott -- accepted -- Muhlenberg's sedge
  Carex muehlenbergii var. muehlenbergii Schkuhr ex Willd. -- accepted -- Muhlenberg's sedge
  Carex multicaulis L.H. Bailey -- accepted -- manystem sedge
  Carex multicostata Mack. -- accepted -- manyrib sedge
  Carex multimoda L.H. Bailey -- not accepted
  Carex muricata L. -- accepted -- rough sedge
  Carex muricata ssp. lamprocarpa Celak. -- accepted -- rough sedge
  Carex muricata var. angustata (Carey) J. Carey ex Gleason -- not accepted
  Carex muricata var. cephalantha (L.H. Bailey) Wiegand & Eames -- not accepted
  Carex muricata var. laricina (Mack. ex Bright) Gleason -- not accepted
  Carex muricata var. ruthii (Mack.) Gleason -- not accepted
  Carex muricata var. sterilis (Willd.) Gleason -- not accepted
  Carex muriculata F.J. Herm. -- accepted -- Schiede's sedge
  Carex muskingumensis Schwein. -- accepted -- Muskingum sedge
  Carex nardina Fr. -- accepted -- spike sedge
  Carex nardina ssp. hepburnii (Boott) Á. Löve, D. Löve & B.M. Kapoor -- not accepted
  Carex nardina var. atriceps Kük. -- not accepted -- spike sedge
  Carex nardina var. hepburnii (Boott) Kük. -- not accepted -- Hepburn's sedge
  Carex nardina var. nardina Fr. -- not accepted -- nard sedge, spike sedge
  Carex nealiae R.W. Krauss -- not accepted
  Carex nebrascensis Dewey -- accepted -- Nebraska sedge
  Carex nelsonii Mack. -- accepted -- Nelson sedge, Nelson's sedge
  Carex neomexicana Mack. -- not accepted
  Carex nervina L.H. Bailey -- accepted -- nerved sedge, Sierra sedge
  Carex nesophila T. Holm -- not accepted
  Carex neurochlaena T. Holm -- not accepted
  Carex neurophora Mack. -- accepted -- alpine nerve sedge, alpine nerved sedge, alpinenerved sedge
  Carex nevadensis ssp. flavella (V.I. Krecz.) Janchen -- not accepted
  Carex nigella Boott -- not accepted
  Carex nigra (L.) Reichard -- accepted -- smooth black sedge
  Carex nigra var. strictiformis (L.H. Bailey) Fernald -- not accepted
  Carex nigricans C.A. Mey. -- accepted -- black alpine sedge
  Carex nigromarginata Schwein. -- accepted -- black edge sedge
  Carex nigromarginata var. elliptica (Boott) Gleason -- not accepted
  Carex nigromarginata var. floridana (Schwein.) Kük. -- not accepted
  Carex nigromarginata var. minor (Boott) Gleason -- not accepted
  Carex nigromarginata var. muhlenbergii (A. Gray) Gleason -- not accepted
  Carex normalis Mack. -- accepted -- greater straw sedge
  Carex norvegica Retz. -- accepted -- Norway sedge, Scandinavian sedge
  Carex norvegica ssp. inferalpina (Wahlenb.) Hultén -- not accepted -- closedhead sedge
  Carex norvegica ssp. inserrulata Kalela -- not accepted -- closedhead sedge
  Carex norvegica ssp. norvegica Retz. -- not accepted -- Norway sedge
  Carex norvegica ssp. stevenii (T. Holm) D.F. Murray -- not accepted -- Steven's sedge
  Carex norvegica var. inferalpina (Wahlenb.) B. Boivin -- not accepted
  Carex norvegica var. stevenii (T. Holm) Dorn -- not accepted
  Carex nova L.H. Bailey -- accepted -- black sedge, new sedge
  Carex nova var. pelocarpa (F.J. Herm.) Dorn -- not accepted
  Carex novae-angliae Schwein. -- accepted -- New England sedge
  Carex nubicola Mack. -- not accepted
  Carex nudata W. Boott -- accepted -- naked sedge
  Carex nutans Host -- not accepted
  Carex obispoensis Stacey -- accepted -- San Luis Obispo sedge, San Luis sedge
  Carex oblita Steud. -- not accepted
  Carex obnupta L.H. Bailey -- accepted -- slough sedge
  Carex obovoidea Cronquist -- not accepted
  Carex obtusata Lilj. -- accepted -- blunt sedge, obtuse sedge
  Carex occidentalis L.H. Bailey -- accepted -- western sedge
  Carex oederi auct. non Retz. -- not accepted
  Carex oederi ssp. viridula (Michx.) Hultén -- not accepted
  Carex oederi var. recterostrata (Victorin) Dorn -- not accepted
  Carex oederi var. subglosa Fernald -- not accepted
  Carex oklahomensis Mack. -- accepted -- Oklahoma sedge
  Carex oligocarpa Schkuhr ex Willd. -- accepted -- carex ŕ fruits clairsemés, eastern few-fruit sedge, richwoods sedge
  Carex oligosperma Michx. -- accepted -- fewseed sedge
  Carex oligosperma var. churchilliana Raymond -- not accepted -- Churchill's sedge
  Carex oligosperma var. oligosperma Michx. -- not accepted -- fewseed sedge
  Carex onusta Mack. -- not accepted -- storm sedge
  Carex opaca (F.J. Herm.) P. Rothr. & Reznicek -- accepted -- Bicknell's sedge
  Carex oregonensis Olney ex L.H. Bailey -- not accepted
  Carex oreocharis T. Holm -- accepted -- grassyslope sedge, summit sedge
  Carex ormantha (Fernald) Mack. -- not accepted
  Carex ormostachya Wiegand -- accepted -- necklace spike sedge
  Carex oronensis Fernald -- accepted -- Orono sedge
  Carex otrubae Podp. -- accepted
  Carex ouachitana Kral, Manhart & Bryson -- accepted -- Ouachita Mountain sedge
  Carex ovalis Gooden. -- accepted -- eggbract sedge
  Carex oxycarpa T. Holm -- not accepted
  Carex oxylepis Torr. & Hook. -- accepted -- sharpscale sedge
  Carex oxylepis var. oxylepis Torr. & Hook. -- not accepted -- sharpscale sedge
  Carex oxylepis var. pubescens J.K. Underw. -- not accepted -- sharpscale sedge
  Carex ozarkana P. Rothr. & Reznicek -- accepted -- Ozark sedge
  Carex pachycarpa Mack. -- not accepted
  Carex pachystachya Cham. ex Steud. -- accepted -- chamisso sedge, thickhead sedge
  Carex pachystachya var. gracilis (Olney) Mack. -- not accepted
  Carex pachystachya var. monds-coulteri Kelso -- not accepted
  Carex pachystylis J. Gay -- accepted
  Carex paeninsulae Naczi, E.L. Bridges & Orzell -- accepted
  Carex pairaei F.W. Schultz -- not accepted
  Carex paleacea Schreb. ex Wahlenb. -- accepted -- chaffy sedge
  Carex paleacea var. transatlantica Fernald -- not accepted
  Carex pallescens L. -- accepted -- pale sedge
  Carex pallescens var. neogaea Fernald -- not accepted
  Carex panda C.B. Clarke -- not accepted
  Carex panicea L. -- accepted -- grass-like sedge, grasslike sedge
  Carex panicea var. microcarpa Sond. -- not accepted
  Carex paniculata L. -- accepted
  Carex pansa L.H. Bailey -- accepted -- sanddune sedge
  Carex parallela auct. non (Laest.) Sommerf. -- not accepted
  Carex parallela (Laest.) Sommerf. -- accepted -- parallel sedge
  Carex parallela ssp. parallela (Laest.) Sommerf. -- accepted -- parallel sedge
  Carex parryana Dewey -- accepted -- Parry sedge, Parry's sedge
  Carex parryana ssp. hallii (Olney) D.F. Murray -- not accepted
  Carex parryana ssp. idahoa (L.H. Bailey) D.F. Murray -- not accepted
  Carex parryana var. brevisquama F.J. Herm. -- not accepted -- Parry's sedge
  Carex parryana var. hallii (Olney) Kük. -- not accepted
  Carex parryana var. parryana Dewey -- not accepted -- Parry's sedge
  Carex parryana var. unica L.H. Bailey -- not accepted
  Carex paucicostata Mack. -- not accepted
  Carex pauciflora Lightf. -- accepted -- fewflower sedge
  Carex paucifructus Mack. -- not accepted -- Sierra sedge
  Carex paupercula Michx. -- not accepted
  Carex paupercula var. brevisquama Fernald -- not accepted
  Carex paupercula var. irrigua (Wahlenb.) Fernald -- not accepted
  Carex paupercula var. pallens Fernald -- not accepted
  Carex paysonis Clokey -- accepted -- Payson sedge, Payson's sedge
  Carex peckii Howe -- accepted -- Peck's sedge
  Carex pedunculata Muhl. ex Willd. -- accepted -- long-stalk sedge, longstalk sedge
  Carex pellita Muhl. ex Willd. -- accepted -- woolly sedge
  Carex pelocarpa F.J. Herm. -- accepted -- duskyseed sedge
  Carex pendula Huds. -- accepted -- hanging sedge, sedge-grass
  Carex pensylvanica Lam. -- accepted -- Penn sedge, Pennsylvania sedge
  Carex pensylvanica ssp. heliophila (Mack.) W.A. Weber -- not accepted
  Carex pensylvanica var. digyna Boeckeler -- not accepted
  Carex pensylvanica var. distans Peck -- not accepted
  Carex pensylvanica var. glumabunda Peck -- not accepted
  Carex pensylvanica var. lucorum (Willd. ex Link) Fernald -- not accepted
  Carex pensylvanica var. marginata (Willd.) Dewey -- not accepted
  Carex pensylvanica var. separans Peck -- not accepted
  Carex pensylvanica var. vespertina L.H. Bailey -- not accepted
  Carex perdentata S.D. Jones -- accepted -- sand sedge
  Carex perglobosa Mack. -- accepted -- globe sedge
  Carex petasata Dewey -- accepted -- Liddon sedge, Liddon's sedge
  Carex petricosa Dewey -- accepted -- rockdwelling sedge
  Carex petricosa var. distichiflora (B. Boivin) B. Boivin -- not accepted
  Carex petricosa var. franklinii (Boott) B. Boivin -- not accepted
  Carex petricosa var. misandroides (Fernald) B. Boivin -- accepted
  Carex petricosa var. petricosa Dewey -- accepted -- rock-dwelling sedge, stone sedge
  Carex phaeocephala Piper -- accepted -- dunehead sedge, dunhead sedge
  Carex phyllomanica W. Boott -- not accepted
  Carex phyllomanica var. angustata (J. Carey) B. Boivin -- not accepted
  Carex phyllomanica var. ormantha (Fernald) B. Boivin -- not accepted
  Carex physocarpa J. Presl & C. Presl -- not accepted
  Carex physorhyncha Liebm. ex Steud. -- not accepted
  Carex picta Steud. -- accepted -- Boott's sedge
  Carex pigra Naczi -- accepted -- Tarheel sedge
  Carex pilulifera L. -- accepted
  Carex piperi Mack. -- not accepted -- Piper's sedge
  Carex pityophila Mack. -- accepted -- loving sedge
  Carex plana Mack. -- not accepted
  Carex planispicata Naczi -- accepted -- flat-spiked sedge
  Carex planostachys Kunze -- accepted -- cedar sedge
  Carex plantaginea Lam. -- accepted -- plantainleaf sedge
  Carex platylepis Mack. -- not accepted -- broadscale sedge
  Carex platyphylla J. Carey -- accepted -- broad-leaved sedge, broadleaf sedge
  Carex plectocarpa F.J. Herm. -- not accepted
  Carex pluriflora Hultén -- accepted -- manyflower sedge
  Carex pluvia R.W. Krauss -- not accepted
  Carex pluvia var. koolauensis R.W. Krauss -- not accepted
  Carex podocarpa R. Br. -- accepted -- shortstalk sedge
  Carex podocarpa var. paysonis (Clokey) B. Boivin -- not accepted
  Carex polymorpha Muhl. -- accepted -- variable sedge
  Carex polyphylla Kar. & Kir. -- not accepted
  Carex polystachya Sw. ex Wahlenb. -- accepted -- Caribbean sedge
  Carex praeceptorium Mack. -- not accepted -- early sedge
  Carex praeceptorum Mack. -- accepted -- early sedge, teacher's sedge
  Carex praegracilis W. Boott -- accepted -- clustered field sedge, slim sedge
  Carex prairea Dewey ex Alph. Wood -- accepted -- prairie sedge
  Carex prasina Wahlenb. -- accepted -- drooping sedge
  Carex praticola Rydb. -- accepted -- meadow sedge, northern meadow sedge
  Carex praticola var. subcoriacea F.J. Herm. -- not accepted
  Carex preslii Steud. -- accepted -- Presl's sedge
  Carex pribylovensis Macoun -- not accepted
  Carex prionophylla T. Holm -- not accepted
  Carex projecta Mack. -- accepted -- necklace sedge
  Carex proposita Mack. -- accepted -- Great Smoky Mountain sedge
  Carex pseudocyperus L. -- accepted -- cypress-like sedge, cypresslike sedge
  Carex pseudoscirpoidea Rydb. -- not accepted -- western singlespike sedge
  Carex pulicaris L. -- accepted
  Carex pumila Thunb. -- accepted -- dwarf sedge
  Carex purpurifera Mack. -- accepted -- purple sedge
  Carex pyrenaica Wahlenb. -- accepted -- Pyrenean sedge
  Carex pyrenaica ssp. micropoda (C.A. Mey.) Hultén -- not accepted -- Pyrenean sedge
  Carex pyrenaica ssp. pyrenaica Wahlenb. -- not accepted -- Pyrenean sedge
  Carex pyrophila Gand. -- not accepted
  Carex rachillis Maguire -- not accepted
  Carex radfordii Gaddy -- accepted -- Radford's sedge
  Carex radiata (Wahlenb.) Small -- accepted -- eastern star sedge
  Carex radiata var. staminata Peck ex Howe -- not accepted
  Carex raeana Boott -- not accepted
  Carex ramenskii Kom. -- accepted -- Ramensk's sedge
  Carex ramenskii var. caudata Hultén -- not accepted
  Carex rariflora (Wahlenb.) Sm. -- accepted -- looseflower alpine sedge
  Carex rariflora var. androgyna A.E. Porsild -- not accepted -- looseflower alpine sedge
  Carex rariflora var. pluriflora (Hultén) B. Boivin -- not accepted
  Carex rariflora var. rariflora (Wahlenb.) Sm. -- not accepted -- looseflower alpine sedge
  Carex raymondii Calder -- not accepted -- Raymond's sedge
  Carex raynoldsii Dewey -- accepted -- Raynold's sedge, Raynolds sedge, Raynolds' sedge
  Carex recta Boott -- accepted -- estuary sedge
  Carex rectior Mack. -- not accepted
  Carex remota L. -- accepted
  Carex reniformis (L.H. Bailey) Small -- accepted -- kidneyshape sedge
  Carex retroflexa Muhl. ex Willd. -- accepted -- reflexed sedge
  Carex retroflexa var. texensis (Torr.) Fernald -- not accepted
  Carex retrorsa Schwein. -- accepted -- knotsheath sedge, retrorse sedge
  Carex reznicekii Werier -- accepted
  Carex rhomalea (Fernald) Mack. -- not accepted
  Carex rhynchophysa Fisch., C.A. Mey. & Avé-Lall. -- not accepted
  Carex richardsonii R. Br. -- accepted -- carex de Richardson, Richardson sedge, richardson sedge, Richardson's sedge
  Carex richii (Fernald) Mack. -- not accepted
  Carex riparia auct. non M.A. Curtis -- not accepted
  Carex riparia var. impressa S.H. Wright -- not accepted
  Carex riparia var. lacustris (Willd.) Kük. -- not accepted
  Carex roanensis F.J. Herm. -- accepted -- Roan Mountain sedge
  Carex rosea Schkuhr ex Willd. -- accepted -- rosy sedge
  Carex rosea var. minor Boott -- not accepted
  Carex rosea var. pusilla Peck & Howe -- not accepted
  Carex rosea var. radiata (Wahlenb.) Dewey -- not accepted
  Carex rossii Boott -- accepted -- Ross sedge, Ross' sedge, Ross's sedge, shortstemmed sedge
  Carex rostrata Stokes -- accepted -- beaked sedge
  Carex rostrata var. ambigens Fernald -- not accepted
  Carex rostrata var. anticostensis Fernald -- not accepted
  Carex rostrata var. utriculata (Boott) L.H. Bailey -- not accepted
  Carex rotundata Wahlenb. -- accepted -- round sedge
  Carex rotundata var. compacta (R. Br. ex Dewey) B. Boivin -- not accepted
  Carex rotundata var. rotundata Wahlenb. -- not accepted -- pumpkinfruit sedge
  Carex rousseaui Raymond -- not accepted
  Carex rufina Drejer -- accepted -- snowbed sedge
  Carex rugosperma Mack. -- not accepted -- parachute sedge
  Carex rugosperma var. tonsa (Fernald) E.G. Voss -- not accepted
  Carex rupestris All. -- accepted -- curly sedge, rock sedge
  Carex rupestris ssp. drummondiana (Dewey) Holub -- not accepted
  Carex rupestris var. drummondiana (Dewey) L.H. Bailey -- not accepted -- Drummond sedge, Drummond's sedge
  Carex rupestris var. rupestris All. -- not accepted -- curly sedge
  Carex rusbyi Mack. -- not accepted
  Carex ruthii Mack. -- accepted -- Ruth's sedge
  Carex sabulosa Turcz. ex Kunth -- accepted -- Baikal sedge
  Carex sabulosa ssp. leiophylla (Mack.) A.E. Porsild -- not accepted
  Carex salina Wahlenb. -- accepted -- saltmarsh sedge
  Carex salina var. kattegatensis (Fr.) Almq. -- not accepted
  Carex salina var. pseudofilipendula Kük. -- not accepted -- saltmarsh sedge
  Carex salina var. salina Wahlenb. -- not accepted -- saltmarsh sedge
  Carex salina var. subspathacea (Wormsk.) Tuck. -- not accepted
  Carex saliniformis Mack. -- not accepted -- Santa Cruz sedge
  Carex saltuensis L.H. Bailey -- not accepted
  Carex sartwelliana Olney -- accepted -- Yosemite sedge
  Carex sartwellii Dewey -- accepted -- carex de Sartwell, Sartwell sedge, Sartwell's sedge
  Carex sartwellii var. sartwellii Dewey -- not accepted -- Sartwell's sedge
  Carex sartwellii var. stenorrhyncha F.J. Herm. -- not accepted -- Sartwell's sedge
  Carex saxatilis L. -- accepted -- rock sedge
  Carex saxatilis ssp. laxa (Trautv.) Kalela -- not accepted
  Carex saxatilis var. major Olney -- not accepted
  Carex saxatilis var. miliaris (Michx.) L.H. Bailey -- not accepted
  Carex saxatilis var. rhomalea Fernald -- not accepted
  Carex saxatilis var. saxatilis L. -- not accepted -- russet sedge
  Carex saxilittoralis A. Robertson -- not accepted
  Carex saximontana Mack. -- accepted -- Rocky Mountain sedge
  Carex scabrata Schwein. -- accepted -- eastern rough sedge
  Carex scabriuscula Mack. -- accepted -- Siskiyou sedge
  Carex scaposa C.B. Clarke -- accepted
  Carex schiedeana Kunze -- accepted -- Schiede's sedge
  Carex schottii Dewey -- accepted -- Schott's sedge
  Carex schweinitzii Dewey ex Schwein. -- accepted -- Schweinitz's sedge
  Carex scirpiformis Mack. -- not accepted
  Carex scirpoidea Michx. -- accepted -- Canadian single-spike sedge, downy sedge, northern singlespike sedge
  Carex scirpoidea ssp. convoluta (Kük.) Dunlop -- accepted
  Carex scirpoidea ssp. pseudoscirpoidea (Rydb.) Dunlop -- accepted -- western singlespike sedge
  Carex scirpoidea ssp. scirpoidea Michx. -- accepted -- northern singlespike sedge
  Carex scirpoidea ssp. stenochlaena (T. Holm) Á. Löve & D. Löve -- accepted
  Carex scirpoidea var. convoluta Kük. -- not accepted
  Carex scirpoidea var. curatorum (Stacey) Cronquist -- not accepted
  Carex scirpoidea var. pseudoscirpoidea (Rydb.) Cronquist -- not accepted
  Carex scirpoidea var. scirpiformis (Mack.) O'Neill & Duman -- not accepted
  Carex scirpoidea var. stenochlaena T. Holm -- not accepted
  Carex scoparia Schkuhr ex Willd. -- accepted -- broom sedge, pointed broom sedge
  Carex scoparia var. condensa Fernald -- not accepted
  Carex scoparia var. moniliformis Tuck. -- not accepted
  Carex scoparia var. scoparia Schkuhr ex Willd. -- not accepted -- broom sedge
  Carex scoparia var. tessellata Fernald & Wiegand -- not accepted -- broom sedge
  Carex scopulorum T. Holm -- accepted -- Holm's Rocky Mountain sedge, mountain sedge
  Carex scopulorum var. bracteosa (L.H. Bailey) F.J. Herm. -- accepted -- craterlike sedge, mountain sedge
  Carex scopulorum var. chimaphila (T. Holm) Kük. -- not accepted
  Carex scopulorum var. prionophylla (T. Holm) L.A. Standl. -- accepted -- firethread sedge
  Carex scopulorum var. scopulorum T. Holm -- accepted -- mountain sedge, Rocky Mountain sedge
  Carex sempervirens Vill. -- accepted
  Carex senta Boott -- accepted -- swamp carex, swamp sedge
  Carex seorsa Howe -- accepted -- weak stellate sedge
  Carex serotina Mérat -- not accepted
  Carex serpenticola Zika -- accepted -- serpentine sedge
  Carex serratodens W. Boott -- accepted -- false flax, twotooth sedge
  Carex setacea Dewey -- not accepted
  Carex setacea var. ambigua (Barratt) Fernald -- not accepted
  Carex sheldonii Mack. -- accepted -- Sheldon's sedge
  Carex shinnersii P. Rothr. & Reznicek -- accepted -- Shinner's sedge
  Carex shortiana Dewey -- accepted -- Short's sedge
  Carex shriveri Britton -- not accepted
  Carex siccata Dewey -- accepted -- dryspike sedge
  Carex silicea Olney -- accepted -- beach sedge
  Carex simulata Mack. -- accepted -- analogue sedge, shortbeak sedge
  Carex sitchensis Prescott ex Bong. -- not accepted
  Carex smalliana Mack. -- not accepted
  Carex socialis Mohlenbr. & Schwegman -- accepted -- low woodland sedge
  Carex sonomensis Stacey -- not accepted -- sedge
  Carex soperi Raup -- not accepted
  Carex sparganioides Muhl. ex Willd. -- accepted -- bur-reed sedge, burr reed sedge
  Carex sparganioides var. aggregata (Mack.) Gleason -- not accepted
  Carex sparganioides var. cephaloidea (Dewey) J. Carey -- not accepted
  Carex specifica L.H. Bailey -- accepted -- narrowfruit sedge
  Carex spectabilis Dewey -- accepted -- showy sedge
  Carex specuicola J.T. Howell -- accepted -- Navajo sedge
  Carex spicata Huds. -- accepted -- prickly sedge
  Carex spissa L.H. Bailey -- accepted -- Bailey sedge, San Diego sedge
  Carex spissa var. ultra (L.H. Bailey) Kük. -- not accepted
  Carex sprengelii Dewey ex Spreng. -- accepted -- long-beak sedge, Sprengel sedge, Sprengel's sedge
  Carex squarrosa L. -- accepted -- squarrose sedge
  Carex squarrosa var. typhina (Michx.) Nutt. -- not accepted
  Carex stans Drejer -- not accepted
  Carex stellata Mack. -- not accepted
  Carex stellulata auct. non Gooden. -- not accepted
  Carex stenocarpa Turcz. ex V.I. Krecz. -- accepted -- Asiatic sedge
  Carex stenochlaena (T. Holm) Mack. -- not accepted
  Carex stenophylla auct. non Wahlenb. -- not accepted
  Carex stenophylla ssp. eleocharis (L.H. Bailey) Hultén -- not accepted
  Carex stenophylla var. enervis Kük. -- not accepted
  Carex stenoptera Mack. -- not accepted
  Carex stenoptila F.J. Herm. -- accepted -- riverbank sedge
  Carex sterilis Willd. -- accepted -- dioecious sedge
  Carex steudelii Kunth -- not accepted
  Carex stevenii (T. Holm) Kalela -- accepted -- Steven's sedge
  Carex stipata Muhl. ex Willd. -- accepted -- awlfruit sedge, owlfruit sedge, sawbeak sedge, stalk-grain sedge
  Carex stipata var. laevivaginata Kük. -- not accepted
  Carex stipata var. maxima Chapm. -- accepted -- stalkgrain sedge
  Carex stipata var. oklahomensis (Mack.) Gleason -- not accepted
  Carex stipata var. stipata Muhl. ex Willd. -- accepted -- owlfruit sedge
  Carex stipata var. uberior C. Mohr -- not accepted
  Carex stolonifera Schwein. -- not accepted
  Carex straminea Willd. ex Schkuhr -- accepted -- eastern straw sedge
  Carex straminea var. invisa W. Boott -- not accepted
  Carex straminea var. mixta L.H. Bailey -- not accepted
  Carex straminiformis L.H. Bailey -- accepted -- Shasta sedge
  Carex striata Michx. -- accepted -- Walter's sedge
  Carex striata var. brevis L.H. Bailey -- not accepted -- Walter's sedge
  Carex striata var. erecta (Dewey) C.F. Reed -- not accepted
  Carex striata var. striata Michx. -- not accepted -- Walter's sedge
  Carex striatula Michx. -- accepted -- lined sedge
  Carex stricta Lam. -- accepted -- upright sedge, uptight sedge
  Carex stricta var. decora L.H. Bailey -- not accepted
  Carex stricta var. elongata (Boeckeler) Gleason -- not accepted
  Carex stricta var. strictior (Dewey) J. Carey -- not accepted
  Carex strictior Dewey -- not accepted
  Carex stygia T. Holm, non Fr. -- not accepted
  Carex styloflexa Buckley -- accepted -- bent sedge
  Carex stylosa C.A. Mey. -- accepted -- variegated sedge
  Carex stylosa var. nigritella (Drejer) Fernald -- not accepted
  Carex stylosa var. virens L.H. Bailey -- not accepted
  Carex subbracteata Mack. -- accepted -- smallbract sedge
  Carex suberecta (Olney) Britton -- accepted -- prairie straw sedge
  Carex subfusca W. Boott -- accepted -- brown sedge
  Carex subnigricans Stacey -- accepted -- black sedge, nearlyblack sedge
  Carex suborbiculata Mack. -- not accepted
  Carex subspathacea Wormsk. -- accepted -- Hoppner's sedge
  Carex substricta (Kük.) Mack. -- not accepted
  Carex suksdorfii Kük. -- not accepted
  Carex superata Naczi, Reznicek & B.A. Ford -- accepted -- Willdenow's sedge
  Carex supina Willd. ex Wahlenb. -- accepted -- weak arctic sedge
  Carex supina ssp. spaniocarpa (Steud.) Hultén -- accepted -- weak arctic sedge
  Carex supina var. spaniocarpa (Steud.) B. Boivin -- not accepted -- weak arctic sedge
  Carex svenonis Skottsb. -- not accepted
  Carex swanii (Fernald) Mack. -- accepted -- carex de Swan, swan sedge, Swan's sedge
  Carex sychnocephala J. Carey -- accepted -- many-head sedge, many-headed sedge, manyhead sedge
  Carex sylvatica Huds. -- accepted -- European woodland sedge
  Carex sylvicola J.M. Webber & P.W. Ball -- not accepted
  Carex tahoensis Smiley -- accepted -- Tahoe sedge
  Carex tenax Chapm. ex Dewey -- accepted -- wire sedge
  Carex tenera Dewey -- accepted -- quill sedge
  Carex tenera var. echinodes (Fernald) Wiegand -- accepted -- quill sedge
  Carex tenera var. tenera Dewey -- accepted -- quill sedge
  Carex teneriformis Mack. -- not accepted -- Sierra slender sedge
  Carex tenuiflora Wahlenb. -- accepted -- sparseflower sedge
  Carex terrae-novae Fernald -- not accepted -- Newfoundland sedge
  Carex tetanica Schkuhr -- accepted -- rigid sedge
  Carex tetanica var. meadii (Dewey) L.H. Bailey -- not accepted
  Carex tetanica var. woodii (Dewey) Alph. Wood -- not accepted
  Carex tetrastachya Scheele -- accepted -- Britton's sedge
  Carex texensis (Torr.) L.H. Bailey -- accepted -- Texas sedge
  Carex thornei Naczi -- accepted
  Carex thunbergii Steud. -- accepted -- Maui sedge
  Carex thurberi Dewey -- accepted -- Thurber's sedge
  Carex timida Naczi & B.A. Ford -- accepted
  Carex tincta (Fernald) Fernald -- accepted -- tinged sedge
  Carex tiogana D.W. Taylor & J.D. Mastrog. -- accepted -- Tioga Pass sedge
  Carex tolmiei Boott -- not accepted
  Carex tolmiei auct. non Boott -- not accepted
  Carex tomentosa L. -- accepted
  Carex tompkinsii J.T. Howell -- accepted -- Thompkins' sedge
  Carex tonsa (Fernald) E.P. Bicknell -- accepted -- shaved sedge
  Carex tonsa var. rugosperma (Mack.) Crins -- accepted -- parachute sedge
  Carex tonsa var. tonsa (Fernald) E.P. Bicknell -- accepted -- shaved sedge
  Carex torreyi Tuck. -- accepted -- Torrey sedge, Torrey's sedge
  Carex torta Boott ex Tuck. -- accepted -- twisted sedge
  Carex tracyi Mack. -- not accepted
  Carex triangularis Boeckeler -- accepted -- eastern fox sedge
  Carex tribuloides Wahlenb. -- accepted -- blunt broom sedge
  Carex tribuloides var. moniliformis (Tuck.) Britton -- not accepted
  Carex tribuloides var. sangamonensis Clokey -- accepted -- blunt broom sedge
  Carex tribuloides var. tribuloides Wahlenb. -- accepted -- blunt broom sedge
  Carex triceps Michx. -- not accepted
  Carex trichocarpa Muhl. ex Willd. -- accepted -- hairy-fruit sedge, hairyfruit sedge
  Carex triquetra Boott -- accepted -- triangularfruit sedge
  Carex trisperma Dewey -- accepted -- threeseeded sedge
  Carex trisperma var. billingsii O.W. Knight -- not accepted -- Billings' sedge
  Carex trisperma var. trisperma Dewey -- not accepted -- threeseeded sedge
  Carex tuckermanii Dewey -- accepted -- Tuckerman's sedge
  Carex tumulicola Mack. -- accepted -- splitawn sedge
  Carex turbinata Liebm. -- accepted -- turban sedge
  Carex turgescens Torr. -- accepted -- pine barren sedge, pinebarren sedge
  Carex turgidula L.H. Bailey -- not accepted
  Carex typhina Michx. -- accepted -- cat-tail sedge, cattail sedge
  Carex uberior (C. Mohr) Mack. -- not accepted
  Carex ultra L.H. Bailey -- not accepted -- Cochise sedge
  Carex umbellata Schkuhr ex Willd. -- accepted -- parasol sedge
  Carex umbellata var. tonsa Fernald -- not accepted
  Carex uncompahgre Kelso -- not accepted
  Carex unilateralis Mack. -- accepted -- lateral sedge
  Carex ursina Dewey -- accepted -- bear sedge
  Carex utriculata Boott -- accepted -- Northwest Territory sedge
  Carex vacillans Drejer -- accepted
  Carex vaginata Tausch -- accepted -- sheathed sedge
  Carex vahlii Schkuhr -- not accepted
  Carex vahlii var. inferalpina (Wahlenb.) Fernald -- not accepted
  Carex vallicola Dewey -- accepted -- valley sedge
  Carex vallicola var. rusbyi (Mack.) F.J. Herm. -- not accepted -- Rusby's sedge, valley sedge
  Carex vallicola var. vallicola Dewey -- not accepted -- valley sedge
  Carex varia Muhl. ex Willd., non Host -- not accepted
  Carex varia var. australis L.H. Bailey -- not accepted
  Carex venusta Dewey -- accepted -- darkgreen sedge
  Carex venusta var. minor Boeckeler -- not accepted -- darkgreen sedge
  Carex venusta var. venusta Dewey -- not accepted -- darkgreen sedge
  Carex venustula T. Holm -- not accepted
  Carex vernacula L.H. Bailey -- accepted -- native sedge, spring sedge
  Carex verrucosa Muhl. -- accepted -- warty sedge
  Carex vesicaria L. -- accepted -- blister sedge, inflated sedge
  Carex vesicaria var. distenta Fr. -- not accepted -- blister sedge
  Carex vesicaria var. jejuna Fernald -- not accepted -- blister sedge
  Carex vesicaria var. laurentiana Fernald -- not accepted -- Laurent's sedge
  Carex vesicaria var. major Boott -- not accepted
  Carex vesicaria var. monile (Tuck.) Fernald -- not accepted -- blister sedge
  Carex vesicaria var. raeana (Boott) Fernald -- not accepted -- blister sedge
  Carex vesicaria var. vesicaria L. -- not accepted -- blister sedge, lesser bladder sedge
  Carex vestita Willd. -- accepted -- velvet sedge
  Carex vexans F.J. Herm. -- accepted -- Florida hammock sedge
  Carex vicaria L.H. Bailey -- not accepted -- western fox sedge
  Carex virens Lam. -- not accepted
  Carex virescens Muhl. ex Willd. -- accepted -- ribbed sedge
  Carex virescens var. costata (Schwein.) Dewey -- not accepted
  Carex virescens var. swanii Fernald -- not accepted
  Carex viridula Michx. -- accepted -- green sedge, little green sedge
  Carex viridula ssp. brachyrrhyncha (Celak.) B. Schmid -- accepted -- little green sedge
  Carex viridula ssp. brachyrrhyncha var. elatior (Schltdl.) Crins -- not accepted -- little green sedge
  Carex viridula ssp. brachyrrhyncha var. saxilittoralis (A. Robertson) Crins -- not accepted -- little green sedge
  Carex viridula ssp. oedocarpa (Andersson) B. Schmid -- accepted -- little green sedge
  Carex viridula ssp. viridula Michx. -- accepted -- green sedge, little green sedge
  Carex viridula var. elatior (Schltdl.) Crins -- accepted -- little green sedge
  Carex viridula var. saxilittoralis (A. Robertson) Crins -- accepted
  Carex viridula var. viridula Michx. -- accepted -- little green sedge
  Carex vulgaris Fr. -- not accepted
  Carex vulpina L. -- accepted
  Carex vulpinoidea Michx. -- accepted -- common fox sedge, fox sedge
  Carex vulpinoidea var. platycarpa Hall -- not accepted -- fox sedge
  Carex vulpinoidea var. pycnocephala F.J. Herm. -- not accepted -- fox sedge
  Carex vulpinoidea var. vulpinoidea Michx. -- not accepted -- fox sedge
  Carex wahuensis C.A. Mey. -- accepted -- Oahu sedge
  Carex wahuensis ssp. herbstii T. Koyama -- accepted -- Herbst's sedge
  Carex wahuensis ssp. rubiginosa (R.W. Krauss) T. Koyama -- accepted -- Oahu sedge
  Carex wahuensis ssp. wahuensis C.A. Mey. -- accepted -- Oahu sedge
  Carex wahuensis var. rubiginosa R.W. Krauss -- not accepted
  Carex walteriana L.H. Bailey -- not accepted
  Carex walteriana var. brevis (L.H. Bailey) L.H. Bailey -- not accepted
  Carex whitneyi Olney -- accepted -- Whitney sedge, Whitney's sedge
  Carex wiegandii Mack. -- accepted -- Wiegand's sedge
  Carex willdenowii Schkuhr ex Willd. -- accepted -- Willdenow's sedge
  Carex willdenowii var. megarrhyncha F.J. Herm. -- not accepted -- Willdenow's sedge
  Carex willdenowii var. willdenowii Schkuhr ex Willd. -- not accepted -- Willdenow's sedge
  Carex williamsii Britton -- accepted -- Williams' sedge
  Carex woodii Dewey -- accepted -- pretty sedge
  Carex wootonii Mack. -- accepted -- Wooton sedge, Wooton's sedge
  Carex X abitibiana Lepage -- accepted -- sedge
  Carex X absconditiformis Fernald -- not accepted -- sedge
  Carex X aestivaliformis Mack. -- accepted -- sedge
  Carex X anticostensis (Fernald) Lepage -- not accepted
  Carex X anticostensis var. anticostensis (Fernald) Lepage -- not accepted -- sedge
  Carex X anticostensis var. inflatior Lepage (pro nm.) -- not accepted
  Carex X anticostensis var. longidens Lepage (pro nm.) -- not accepted
  Carex X anticostensis var. minor Lepage (pro nm.) -- not accepted
  Carex X aquanigra B. Boivin -- not accepted
  Carex X arctophila F. Nyl. -- accepted
  Carex X caesariensis Mack. (pro sp.) -- accepted -- Caesar sedge
  Carex X calderi B. Boivin -- accepted -- Calder's sedge
  Carex X clausa Holmb. -- accepted
  Carex X connectens Holmb. -- accepted -- connect sedge
  Carex X copulata (L.H. Bailey) Mack. -- not accepted
  Carex X corcontica Domin -- not accepted
  Carex X crinitoides Lepage -- accepted -- sedge
  Carex X deamii F.J. Herm. -- accepted -- Deam's sedge
  Carex X dumanii Lepage -- accepted
  Carex X exsalina Lepage -- accepted -- sedge
  Carex X firmior (Norman) Holmb. -- accepted -- sedge
  Carex X flavicans F. Nyl. -- accepted -- sedge
  Carex X fulleri H.E. Ahles -- not accepted
  Carex X fulva Gooden. -- accepted
  Carex X gardneri Lepage -- not accepted -- Gardner's sedge
  Carex X grahamii Boott (pro sp.) -- not accepted -- Graham's sedge
  Carex X grantii A. Benn. -- accepted -- Grant's sedge
  Carex X groenlandica Lange (pro sp.) -- accepted -- Greenland sedge
  Carex X haematolepis Drejer (pro sp.) -- accepted -- sedge
  Carex X hartii Dewey (pro sp.) -- accepted -- Hart's hybrid sedge
  Carex X helvola Blytt (pro sp.) -- accepted -- sedge
  Carex X josephi-schmittii Raymond -- accepted -- Joseph Schmitt sedge
  Carex X kenaica Lepage -- accepted -- Kenai sedge
  Carex X knieskernii Dewey (pro sp.) -- accepted -- Knieskern's sedge
  Carex X kuekenthaliana Appel & Brückn. -- not accepted
  Carex X kyyhkynenii Hidén (pro sp.) -- accepted
  Carex X langeana Fernald (pro sp.) -- accepted -- Lange's sedge
  Carex X leutzii Kneuck. -- not accepted -- Leutz's sedge
  Carex X leutzii var. leutzii Kneuck. -- not accepted -- Leutz's sedge
  Carex X leutzii var. pseudofulva (Fernald) B. Boivin (pro nm.) -- not accepted -- Leutz's sedge
  Carex X leutzii var. xanthina (Fernald) B. Boivin (pro nm.) -- not accepted -- Leutz's sedge
  Carex X limosoides J. Cay. -- accepted
  Carex X limula Th. Fr. (pro sp.) -- not accepted -- sedge
  Carex X macounii Dewey -- not accepted
  Carex X mainensis Porter ex Britton (pro sp.) -- not accepted -- Maine sedge
  Carex X massonii Cay. & Lepage -- accepted
  Carex X mendica Lepage -- accepted -- sedge
  Carex X minganinsularum Raymond -- not accepted
  Carex X mirata Dewey (pro sp.) -- accepted
  Carex X mucronulata Holmb. -- not accepted
  Carex X nearctica Raymond -- accepted
  Carex X neobigelowii Lepage -- accepted -- sedge
  Carex X neofilipendula Lepage -- accepted -- sedge
  Carex X neomiliaris Lepage -- accepted -- sedge
  Carex X neopaleacea Lepage -- not accepted -- sedge
  Carex X neorigida Lepage -- accepted -- sedge
  Carex X nubens Lepage -- not accepted -- sedge
  Carex X olneyi Boott -- accepted -- Olney's sedge
  Carex X oneillii Lepage -- accepted -- O'Neill's sedge
  Carex X paleaceoides Lepage -- not accepted
  Carex X paludivagans Drury (pro sp.) -- accepted -- sedge
  Carex X pannewitziana Figert -- accepted -- Pannewitz's sedge
  Carex X patuensis Lepage -- accepted -- sedge
  Carex X persalina Lepage -- accepted -- sedge
  Carex X physocarpioides Lepage -- accepted -- russet sedge, sedge
  Carex X pieperiana P. Junge -- accepted -- sedge
  Carex X pseudofulva Fernald -- not accepted
  Carex X pseudohelvola Kihlm. (pro sp.) -- accepted -- sedge
  Carex X quebecensis Lepage -- accepted -- Quebec sedge
  Carex X quirponensis Fernald -- accepted -- sedge
  Carex X reducta Drejer (pro sp.) -- accepted -- sedge
  Carex X rollandii Lepage -- accepted -- Rolland's sedge
  Carex X sardloqensis E. Dahl (pro sp.) -- accepted -- sedge
  Carex X saxenii Raymond -- accepted -- Saxen's sedge
  Carex X saxenii var. dumanii (Lepage) B. Boivin (pro nm.) -- not accepted -- Duman's sedge
  Carex X saxenii var. ferruginea Lepage (pro nm.) -- not accepted -- Saxen's sedge
  Carex X saxenii var. saxenii Raymond -- not accepted -- Saxen's sedge
  Carex X schatzii Kneuck. -- accepted
  Carex X soerensenii Lepage -- accepted -- Soerensen's sedge
  Carex X spiculosa Fr. (pro sp.) -- accepted -- sedge
  Carex X stansalina Lepage -- not accepted
  Carex X stenolepis Less. -- accepted
  Carex X subimpressa Clokey (pro sp.) -- accepted -- sedge
  Carex X sublimosa Lepage -- not accepted -- sedge
  Carex X subnigra Lepage -- not accepted -- sedge
  Carex X subpaleacea J. Cay. -- accepted
  Carex X subpatula Holmb. -- not accepted
  Carex X subrecta J. Cay. -- accepted
  Carex X subreducta Lepage -- accepted -- sedge
  Carex X subsalina Lepage -- accepted -- sedge
  Carex X substans Lepage -- not accepted
  Carex X subviridula Fernald -- accepted -- sedge
  Carex X sullivantii Boott -- accepted -- Sullivant's sedge
  Carex X trichina Fernald -- accepted -- sedge
  Carex X ungavensis Lepage -- accepted -- sedge
  Carex X xanthina Fernald -- not accepted
  Carex X xanthocarpa Degland ex Loiseleur -- accepted
  Carex X zahnii Kneuck. -- accepted
  Carex xerantica L.H. Bailey -- accepted -- white-scale sedge, whitescale sedge
  Carex yosemitana L.H. Bailey -- not accepted
  Cladium P. Browne -- accepted -- sawgrass
  Cladium californicum (S. Watson) O'Neill -- accepted -- California sawgrass
  Cladium jamaicense Crantz -- accepted -- Jamaica swamp sawgrass
  Cladium leptostachyum Nees & Meyen -- not accepted
  Cladium mariscoides (Muhl.) Torr. -- accepted -- smooth sawgrass
  Cladium mariscus (L.) Pohl -- accepted -- swamp sawgrass
  Cladium mariscus ssp. jamaicense (Crantz) Kük. -- not accepted -- Jamaica sawgrass, Jamaica swamp sawgrass
  Cladium mariscus var. californicum S. Watson -- not accepted
  Cladium restioides (Sw.) Benth. -- not accepted
  Cymophyllus Mack. -- accepted -- cymophyllus
  Cymophyllus fraseri (Andrews) Mack. -- not accepted
  Cymophyllus fraserianus (Ker Gawl.) Kartesz & Gandhi -- accepted -- Fraser's cymophyllus
  Cyperaceae -- accepted -- foins coupants, laîches, rouches, rouchettes, sedges
  Cyperus L. -- accepted -- flatsedge, nutgrass
  Cyperus acicularis Schrad. ex Nees -- not accepted
  Cyperus acuminatus Torr. & Hook. ex Torr. -- accepted -- taper-tip flat sedge, taperleaf flatsedge, tapertip flatsedge
  Cyperus aggregatus (Willd.) Endl. -- accepted -- inflated-scale flatsedge, inflatedscale flatsedge
  Cyperus albomarginatus (Mart. & Schrad. ex Nees) Steud. -- not accepted
  Cyperus alopecuroides Rottb. -- accepted -- foxtail flatsedge
  Cyperus alternifolius auct. non L. -- not accepted
  Cyperus alternifolius ssp. flabelliformis Kük. -- not accepted
  Cyperus amabilis Vahl -- accepted -- foothill flatsedge
  Cyperus amabilis var. macrostachyus (Boeckeler) Kük. -- not accepted
  Cyperus amuricus Maxim. -- accepted -- Asian flatsedge
  Cyperus aristatus Rottb. -- not accepted
  Cyperus aristatus var. runyonii O'Neill -- not accepted
  Cyperus articulatus L. -- accepted -- jointed flatsedge
  Cyperus asper (Liebm.) O'Neill -- not accepted
  Cyperus auriculatus Nees & Meyen ex Kunth -- not accepted -- eared flatsedge
  Cyperus bipartitus Torr. -- accepted -- brook flatsedge, shining flat sedge, slender flatsedge
  Cyperus blodgettii Britton -- not accepted -- Blodgett's flatsedge
  Cyperus brevifolioides Thieret & Delahouss. -- not accepted
  Cyperus brevifolius (Rottb.) Endl. ex Hassk. -- not accepted
  Cyperus brevifolius var. leiolepis (Franch. & Savigny) T. Koyama -- not accepted
  Cyperus brunneus Sw. -- not accepted
  Cyperus buckleyi Britton -- not accepted
  Cyperus bushii Britton -- not accepted
  Cyperus calcicola Britton -- not accepted -- Caribbean flatsedge
  Cyperus careyi Britton -- not accepted
  Cyperus cayennensis (Lam.) Britton, non Willd. ex Link -- not accepted
  Cyperus cephalanthus Torr. & Hook. -- accepted -- buttonbush flatsedge
  Cyperus compactus Retz. -- accepted
  Cyperus compressus L. -- accepted -- poorland flatsedge
  Cyperus confertus Sw. -- accepted -- West Indian flatsedge
  Cyperus congestus Vahl -- accepted -- clustered flatsedge
  Cyperus croceus Vahl -- accepted -- Baldwin's flatsedge
  Cyperus cuspidatus Kunth -- accepted -- coastal plain flatsedge
  Cyperus cylindricus (Elliott) Britton -- not accepted
  Cyperus cyperinus (Retz.) Suringar -- accepted -- Old World flatsedge
  Cyperus cyperoides (L.) Kuntze -- accepted -- Pacific island flatsedge
  Cyperus decipiens Hillebr. -- not accepted
  Cyperus deeringianus Britton & Small -- not accepted
  Cyperus densicaespitosus Mattf. & Kük. -- not accepted
  Cyperus densicaespitosus var. major (Nees) Kük. -- not accepted
  Cyperus densus Link -- not accepted
  Cyperus dentatus Torr. -- accepted -- toothed flatsedge
  Cyperus dentoniae G.C. Tucker -- accepted -- hairy flatsedge
  Cyperus diandrus Torr. -- accepted -- umbrella flat sedge, umbrella flatsedge
  Cyperus diandrus var. capitatus Britton -- not accepted
  Cyperus difformis L. -- accepted -- smallflower umbrella sedge, variable flatsedge
  Cyperus diffusus Vahl -- accepted -- diffused flatsedge
  Cyperus digitatus Roxb. -- accepted -- finger flatsedge
  Cyperus dioicus I.M. Johnst. -- accepted -- flatsedge
  Cyperus dipsaceus Liebm. -- accepted -- Wright flatsedge, Wright's flatsedge
  Cyperus dipsaciformis Fernald -- not accepted
  Cyperus dissitiflorus Nees ex Torr. -- not accepted
  Cyperus distans L. f. -- accepted -- Piedmont flatsedge
  Cyperus distinctus Steud. -- accepted -- swamp flatsedge
  Cyperus drummondii Torr. & Hook. -- accepted -- Drummond's sedge
  Cyperus echinatus (L.) Alph. Wood -- accepted -- globe flatsedge
  Cyperus eggersii Boeckeler -- not accepted
  Cyperus elegans L. -- accepted -- royal flatsedge, sticky flatsedge
  Cyperus engelmanni Steud. -- not accepted
  Cyperus engelmannii Steud. -- not accepted -- engelmann's umbrella-sedge, souchet d'Engelmann
  Cyperus entrerianus Boeckeler -- accepted -- woodrush flatsedge
  Cyperus eragrostis Lam. -- accepted -- tall flatsedge
  Cyperus erythrorhizos Muhl. -- accepted -- red-root flat sedge, redroot flatsedge, redroot nutgrass
  Cyperus esculentus L. -- accepted -- chufa, chufa flatsedge, yellow nutgrass, yellow nutsedge
  Cyperus esculentus var. angustispicatus Britton -- not accepted
  Cyperus esculentus var. esculentus L. -- accepted -- chufa flatsedge, yellow nutsedge
  Cyperus esculentus var. hermannii (Buckley) Britton -- accepted -- chufa flatsedge, yellow nutgrass, yellow nutsedge
  Cyperus esculentus var. leptostachyus Boeckeler -- accepted -- chufa flatsedge, yellow nutgrass, yellow nutsedge
  Cyperus esculentus var. macrostachyus Boeckeler -- accepted -- chufa flatsedge, yellow nutgrass, yellow nutsedge
  Cyperus esculentus var. sativus Boeckeler -- accepted -- chufa flatsedge, yellow nutgrass, yellow nutsedge
  Cyperus fauriei Kük. -- accepted -- alpine flatsedge
  Cyperus fendlerianus Boeckeler -- accepted -- Fendler flatsedge, Fendler's flatsedge, Fendler's nutgrass
  Cyperus fendlerianus var. debilis (Britton) Kük. -- not accepted
  Cyperus ferax Rich. -- not accepted
  Cyperus ferax var. auriculatus (Nees & Meyen ex Kunth) Kük. -- not accepted
  Cyperus ferruginescens Boeckeler -- not accepted
  Cyperus filicinus Vahl -- accepted -- fern flatsedge
  Cyperus filiculmis auct. non Vahl -- not accepted
  Cyperus filiculmis Vahl -- accepted
  Cyperus filiculmis var. macilentus Fernald -- not accepted
  Cyperus filiculmis var. oblitus Fernald & Griscom -- not accepted
  Cyperus filiformis Sw. -- accepted -- wiry flatsedge
  Cyperus filiformis var. densiceps Kük. -- not accepted
  Cyperus flabelliformis Rottb. -- not accepted
  Cyperus flavescens L. -- accepted -- pale flatsedge, yellow flatsedge
  Cyperus flavescens var. poiformis (Pursh) Fernald -- not accepted
  Cyperus flavicomus Michx. -- accepted -- white-edge flatsedge, whiteedge flatsedge
  Cyperus flavidus Retz. -- not accepted
  Cyperus flavus (Vahl) Nees, non J. Presl & C. Presl -- not accepted
  Cyperus flexuosus Vahl -- accepted -- Vahl's flatsedge
  Cyperus floribundus (Kük.) R. Carter & S.D. Jones -- accepted -- Rio Grande sedge
  Cyperus floridanus Britton -- not accepted -- Florida flatsedge
  Cyperus fugax Liebm. -- accepted -- withering flatsedge
  Cyperus fuligineus Chapm. -- accepted -- limestone flatsedge
  Cyperus fuscus L. -- accepted -- brown flatsedge
  Cyperus giganteus Vahl -- accepted -- giant flatsedge
  Cyperus globulosus auct. non Aubl. -- not accepted
  Cyperus globulosus var. robustus (Boeckeler) Shinners -- not accepted
  Cyperus gracilis R. Br. -- accepted -- slimjim flatsedge
  Cyperus granitophilus McVaugh -- accepted -- granite flatsedge
  Cyperus granularis (Desf.) Britton -- not accepted
  Cyperus grayi Torr. -- accepted -- Gray's flatsedge
  Cyperus grayoides Mohlenbr. -- accepted -- Illinois flatsedge, umbrella sedge
  Cyperus halei Torr. ex Britton -- not accepted
  Cyperus hallii Britton -- not accepted
  Cyperus hansenii Britton -- not accepted
  Cyperus haspan L. -- accepted -- haspan flatsedge
  Cyperus haspan var. americanus Boeckeler -- not accepted
  Cyperus hermaphroditus (Jacq.) Standl. -- accepted -- hermaphrodite flatsedge
  Cyperus hillebrandii Boeckeler -- accepted -- Hillebrand's flatsedge
  Cyperus hillebrandii var. decipiens (Hillebr.) Kük. -- accepted -- Hillebrand's flatsedge
  Cyperus hillebrandii var. helleri Kük. -- not accepted
  Cyperus hillebrandii var. hillebrandii Boeckeler -- accepted -- Hillebrand's flatsedge
  Cyperus hillebrandii var. mauiensis (Hillebr.) Kük. -- not accepted
  Cyperus holosericeus Link -- not accepted
  Cyperus houghtonii Torr. -- accepted -- Houghton's flatsedge
  Cyperus huarmensis (Kunth) M.C. Johnst. -- not accepted
  Cyperus hyalinus Vahl -- accepted -- Queensland sedge
  Cyperus hypochlorus Hillebr. -- accepted -- Oahu flatsedge
  Cyperus hypochlorus var. brevior Kük. -- accepted -- Oahu flatsedge
  Cyperus hypochlorus var. densispicatus Skottsb. -- not accepted
  Cyperus hypochlorus var. hypochlorus Hillebr. -- accepted -- Oahu flatsedge
  Cyperus hypochlorus var. kauaiensis Kük. -- accepted -- Oahu flatsedge
  Cyperus hypopitys G.C. Tucker -- accepted -- pine flatsedge
  Cyperus hystricinus Fernald -- accepted -- bristly flatsedge
  Cyperus imbricatus Retz. -- accepted -- shingle flatsedge
  Cyperus incompletus (Jacq.) Link -- not accepted
  Cyperus inflexus Muhl. -- not accepted
  Cyperus involucratus Rottb. -- accepted -- umbrella flatsedge, umbrella plant
  Cyperus iria L. -- accepted -- ricefield flatsedge
  Cyperus javanicus Houtt. -- accepted -- Javanese flatsedge
  Cyperus kunthianus (Gaudich.) Hillebr. -- not accepted -- Maui flatsedge
  Cyperus kyllingia Endl. -- not accepted
  Cyperus laevigatus L. -- accepted -- smooth flatsedge, smooth nutgrass
  Cyperus lancastriensis Porter -- accepted -- manyflower flatsedge
  Cyperus lanceolatus Poir. -- accepted -- epiphytic flatsedge
  Cyperus lanceolatus var. compositus J. Presl & C. Presl -- not accepted
  Cyperus lecontei Torr. ex Steud. -- accepted -- Le Conte's flatsedge
  Cyperus lentiginosus Millsp. & Chase -- accepted -- Latin American flatsedge
  Cyperus ligularis L. -- accepted -- Alabama swamp flatsedge
  Cyperus litoreus (C.B. Clarke) Britton -- not accepted
  Cyperus longispicatus Norton -- not accepted
  Cyperus louisianensis Thieret -- not accepted -- Louisiana flatsedge
  Cyperus lupulinus (Spreng.) Marcks -- accepted -- Great Plains flatsedge
  Cyperus lupulinus ssp. lupulinus (Spreng.) Marcks -- accepted -- Great Plains flatsedge
  Cyperus lupulinus ssp. macilentus (Fernald) Marcks -- accepted -- Great Plains flatsedge
  Cyperus lutescens Torr. & Hook. -- not accepted
  Cyperus luzulae auct. non (L.) Rottb. ex Retz. -- not accepted
  Cyperus macrocephalus Liebm. -- not accepted
  Cyperus macrocephalus var. eggersii (Boeckeler) S.D. Jones, Wipff & R. Carter -- not accepted
  Cyperus manimae Kunth -- accepted -- smoothstem flatsedge, spectacular flatsedge
  Cyperus manimae var. asperrimus (Liebm.) Kük. -- accepted -- spectacular flatsedge, spectacular flatsedte
  Cyperus manimae var. divergens (Kunth) Kük. -- accepted
  Cyperus martindalei auct. non Britton -- not accepted
  Cyperus melanostachyus Kunth -- not accepted
  Cyperus metzii (Hochst. ex Steud.) Mattf. & Kük. ex Kük. -- not accepted
  Cyperus meyenianus Kunth -- accepted -- Meyen's flatsedge
  Cyperus microdontus Torr. -- not accepted
  Cyperus microiria Steud. -- accepted -- Asian flatsedge
  Cyperus monostachyos L. -- not accepted
  Cyperus multiflorus (Britton) Small -- not accepted
  Cyperus mutisii (Kunth) Griseb. -- accepted -- mutis flatsedge, Mutis' flatsedge
  Cyperus mutisii var. asper (Liebm.) Kük. -- not accepted
  Cyperus nanus Willd. -- accepted -- Indian flatsedge
  Cyperus nanus var. nanus Willd. -- accepted -- Indian flatsedge
  Cyperus nanus var. subtenuis Kük. -- accepted -- Indian flatsedge
  Cyperus nashii Britton -- not accepted
  Cyperus neokunthianus Kük. -- accepted -- Maui flatsedge
  Cyperus nieuwlandii Geise -- not accepted
  Cyperus niger Ruiz & Pav. -- accepted -- black flatsedge
  Cyperus niger var. capitatus (Britton) O'Neill -- not accepted
  Cyperus niger var. castaneus (Pursh) Kük. -- not accepted
  Cyperus niger var. niger Ruiz & Pav. -- not accepted -- black flatsedge
  Cyperus niger var. rivularis (Kunth) V.E. Grant -- not accepted
  Cyperus nuttallii Eddy -- not accepted
  Cyperus obesus Liebm. -- not accepted
  Cyperus obtusatus (J. Presl & C. Presl) Mattf. & Kük. -- not accepted -- Caribbean Island flatsedge
  Cyperus ochraceus Vahl -- accepted -- pond flatsedge
  Cyperus odoratus L. -- accepted -- fragrant flatsedge, rusty flat sedge
  Cyperus odoratus var. acicularis (Schrad. ex Nees) O'Neill -- not accepted
  Cyperus odoratus var. engelmannii (Steud.) R. Carter, S.D. Jones & Wipff -- not accepted
  Cyperus odoratus var. squarrosus (Britton) S.D. Jones, Wipff & R. Carter -- not accepted
  Cyperus onerosus M.C. Johnst. -- accepted -- flat dune sedge, plains flatsedge
  Cyperus ovatus Baldwin -- accepted -- ovateleaf flatsedge
  Cyperus ovularis (Michx.) Torr. -- not accepted
  Cyperus ovularis var. cylindricus (Elliott) Torr. -- not accepted
  Cyperus ovularis var. sphaericus Boeckeler -- not accepted
  Cyperus owanii Boeckeler -- accepted -- Owan's flatsedge, Owan's rush
  Cyperus oxylepis Nees ex Steud. -- accepted -- sharpscale flatsedge
  Cyperus pallidicolor (Kük.) G.C. Tucker -- accepted -- pallid flatsedge
  Cyperus paniculatus Rottb. -- not accepted
  Cyperus papyrus L. -- accepted -- papyrus
  Cyperus parishii Britton -- accepted -- Parish flatsedge, Parish's flatsedge, Parish's nutgrass
  Cyperus pedunculatus (R. Br.) J. Kern -- not accepted
  Cyperus pennatiformis Kük. -- accepted -- coastal flatsedge
  Cyperus pennatiformis var. bryanii Kük. -- accepted -- Bryan's flatsedge
  Cyperus pennatiformis var. pennatiformis Kük. -- accepted -- coastal flatsedge
  Cyperus peruvianus (Lam.) F.N. Williams -- not accepted
  Cyperus phaeolepis Cherm. -- accepted -- Madagascar flatsedge
  Cyperus phleoides (Nees ex Kunth) Hillebr. -- accepted -- Molokai flatsedge
  Cyperus phleoides var. hawaiensis (H. Mann) Kük. -- accepted -- Molokai flatsedge
  Cyperus phleoides var. phleoides (Nees ex Kunth) Hillebr. -- accepted -- Molokai flatsedge
  Cyperus pilosus Vahl -- accepted -- fuzzy flatsedge
  Cyperus planifolius Rich. -- accepted -- flatleaf flatsedge
  Cyperus plukenetii Fernald -- accepted -- Plukenet's flatsedge
  Cyperus pollardii Britton -- not accepted
  Cyperus polystachyos Rottb. -- accepted -- manyspike flatsedge
  Cyperus polystachyos var. filicinus (Vahl) C.B. Clarke -- not accepted -- manyspike flatsedge
  Cyperus polystachyos var. laxiflorus Benth. -- not accepted
  Cyperus polystachyos var. leptostachyus Boeckeler -- not accepted
  Cyperus polystachyos var. macrostachyus Boeckeler -- not accepted -- manyspike flatsedge
  Cyperus polystachyos var. miser Kük. -- not accepted -- manyspike flatsedge
  Cyperus polystachyos var. pallidus Hillebr. -- not accepted
  Cyperus polystachyos var. paniculatus (Rottb.) C.B. Clarke -- not accepted
  Cyperus polystachyos var. polystachyos Rottb. -- not accepted -- manyspike flatsedge
  Cyperus polystachyos var. texensis (Torr.) Fernald -- not accepted -- Texan flatsedge
  Cyperus praelongatus Steud. -- not accepted
  Cyperus pringlei Britton -- not accepted
  Cyperus prolifer Lam. -- accepted -- dwarf papyrus, miniature flatsedge
  Cyperus prolixus Kunth -- accepted -- mosquito flatsedge
  Cyperus pseudothyrsiflorus (Kük.) R. Carter & S.D. Jones -- accepted
  Cyperus pseudovegetus Steud. -- accepted -- marsh flatsedge
  Cyperus pumilus L. -- accepted -- low flatsedge
  Cyperus radiatus Vahl -- not accepted
  Cyperus reflexus Vahl -- accepted -- bentawn flatsedge
  Cyperus reflexus var. fraternus (Kunth) Kuntze -- not accepted
  Cyperus refractus Engelm. ex Boeckeler -- accepted -- reflexed flatsedge
  Cyperus regiomontanus Britton -- accepted -- Monterey flatsedge
  Cyperus retroflexus Buckley -- accepted -- one-flower flatsedge, oneflower flatsedge
  Cyperus retrofractus (L.) Torr. -- accepted -- rough flatsedge
  Cyperus retrofractus var. dipsaciformis (Fernald) Kük. -- not accepted
  Cyperus retrofractus var. hystricinus (Fernald) Kük. -- not accepted
  Cyperus retrorsus Chapm. -- accepted -- pine barren flatsedge
  Cyperus retrorsus var. cylindricus (Elliott) Fernald & Griscom -- not accepted -- pine barren flatsedge
  Cyperus retrorsus var. deeringianus (Britton & Small) Fernald & Griscom -- not accepted
  Cyperus retrorsus var. nashii (Britton) Fernald & Griscom -- not accepted
  Cyperus retrorsus var. retrorsus Chapm. -- not accepted -- pine barren flatsedge
  Cyperus retrorsus var. robustus (Boeckeler) Kük. -- not accepted -- pine barren flatsedge
  Cyperus rivularis Kunth -- not accepted
  Cyperus robustus Kunth -- not accepted
  Cyperus rockii Kük. -- accepted -- Kauai flatsedge
  Cyperus rotundus L. -- accepted -- chaguan humatag, cocograss, kili'o'opu, nutgrass, pakopako, purple nutsedge
  Cyperus rusbyi Britton -- not accepted
  Cyperus sabulosus (Mart. & Schrad. ex Nees) Steud. -- not accepted
  Cyperus sandwicensis Kük. -- accepted -- cliffs flatsedge
  Cyperus sandwicensis var. pseudoprescottianus Kük. -- not accepted
  Cyperus sanguindentus Vahl -- not accepted
  Cyperus sanguinolentus Vahl -- accepted -- purpleglume flatsedge
  Cyperus schweinitzii Torr. -- accepted -- sand flat sedge, schweinitz flatsedge, Schweinitz's flatsedge
  Cyperus schweinitzii var. uberior Kük. -- not accepted
  Cyperus serotinus Rottb. -- accepted -- tidalmarsh flatsedge
  Cyperus seslerioides Kunth -- accepted -- Texas flatsedge
  Cyperus sesquiflorus (Torr.) Mattf. & Kük. -- not accepted
  Cyperus setigerus Torr. & Hook. -- accepted -- lean flatsedge
  Cyperus speciosus Vahl -- not accepted
  Cyperus speciosus var. squarrosus Britton -- not accepted
  Cyperus spectabilis Link -- accepted -- spectacular flatsedge
  Cyperus sphacelatus Rottb. -- accepted -- roadside flatsedge
  Cyperus sphaerolepis Boeckeler -- accepted -- Rusby's flat sedge, Rusby's flatsedge
  Cyperus squarrosus L. -- accepted -- awned flat sedge, bearded flatsedge, bearded nutgrass
  Cyperus squarrosus var. runyonii (O'Neill) S.D. Jones & Wipff -- not accepted
  Cyperus stenolepis Torr. -- not accepted
  Cyperus strigosus L. -- accepted -- stawcolored flatsedge, strawcolor flatsedge, strawcolor nutgrass, strawcolored flatsedge, strawcolored nutgrass
  Cyperus strigosus var. capitatus Boeckeler -- not accepted
  Cyperus strigosus var. multiflorus Geise -- not accepted
  Cyperus strigosus var. robustior Kunth -- not accepted
  Cyperus strigosus var. stenolepis (Torr.) Kük. -- not accepted
  Cyperus surinamensis Rottb. -- accepted -- tropical flatsedge
  Cyperus swartzii (A. Dietr.) Boeckeler ex Kük. -- accepted -- Swartz's flatsedge
  Cyperus tenerrimus Liebm. -- accepted -- flatsedge
  Cyperus tenuifolius (Steud.) Dandy -- not accepted
  Cyperus tenuis Sw. -- accepted -- crevice flatsedge
  Cyperus tenuis var. lentiginosus (Millsp. & Chase) Kük. -- not accepted
  Cyperus tetragonus Elliott -- accepted -- fourangle flatsedge
  Cyperus thyrsiflorus Jungh. -- accepted -- southern flat sedge, southern flatsedge
  Cyperus torreyi Britton -- not accepted
  Cyperus trachysanthos Hook. & Arn. -- accepted -- Pu`uka`a, sticky flatsedge
  Cyperus trinervis R. Br. -- accepted -- Australian flatsedge
  Cyperus uniflorus Torr. & Hook., non Thunb. -- not accepted
  Cyperus uniflorus var. pseudothyrsiflorus Kük. -- not accepted
  Cyperus unifolius Boeckeler -- accepted
  Cyperus unioloides R. Br. -- accepted -- uniola flatsedge
  Cyperus urbanii Boeckeler -- accepted -- Urban's flatsedge
  Cyperus vahlii (Schrad. ex Nees) Steud. -- not accepted
  Cyperus vegetus Willd. -- not accepted
  Cyperus virens Michx. -- accepted -- green flatsedge
  Cyperus virens var. arenicola (Steud.) Shinners -- not accepted
  Cyperus virens var. drummondii (Torr. & Hook.) Kük. -- not accepted -- Drummond's flatsedge
  Cyperus virens var. virens Michx. -- not accepted -- green flatsedge
  Cyperus winkleri Britton & Small -- not accepted
  Cyperus wrightii Britton -- not accepted
  Cyperus X deamii O'Neill (pro sp.) -- accepted -- Deam's flatsedge
  Cyperus X mesochoreus Geise -- not accepted
  Cyperus X mesochorus Geise -- accepted
  Cyperus X weatherbianus Fernald -- accepted
  Dichromena Michx. -- not accepted
  Dichromena ciliata Vahl -- not accepted
  Dichromena colorata (L.) Hitchc. -- not accepted
  Dichromena floridensis Britton -- not accepted
  Dichromena latifolia Baldwin ex Elliott -- not accepted
  Dichromena microcephala Bertero ex Spreng. -- not accepted
  Dichromena nivea (Boeckeler) Boeckeler ex Britton -- not accepted
  Dichromena radicans Schltdl. & Cham. p.p. -- not accepted
  Diplacrum R. Br. -- accepted
  Diplacrum caricinum R. Br. -- accepted
  Dulichium Pers. -- accepted -- dulichium
  Dulichium arundinaceum (L.) Britton -- accepted -- threeway sedge
  Dulichium arundinaceum var. arundinaceum (L.) Britton -- accepted -- three-way sedge
  Dulichium arundinaceum var. boreale Lepage -- accepted
  Eleocharis R. Br. -- accepted -- spikerush, spikesedge
  Eleocharis acicularis (L.) Roem. & Schult. -- accepted -- needle spikerush, needle spikesedge
  Eleocharis acicularis var. acicularis (L.) Roem. & Schult. -- not accepted -- needle spike-rush, needle spikerush
  Eleocharis acicularis var. bella Piper -- not accepted
  Eleocharis acicularis var. gracilescens Svenson -- not accepted -- needle spikerush
  Eleocharis acicularis var. minima Torr. -- not accepted
  Eleocharis acicularis var. occidentalis Svenson -- not accepted
  Eleocharis acicularis var. porcata S.G. Sm. -- not accepted
  Eleocharis acicularis var. radicans (A. Dietr.) Britton -- not accepted
  Eleocharis acicularis var. submersa (Nilsson) Svenson -- not accepted -- needle spikerush
  Eleocharis acicularis var. typica Svenson -- not accepted
  Eleocharis acuminata (Muhl.) Nees -- not accepted
  Eleocharis acutangula (Roxb.) Schult. -- accepted -- acute spikerush
  Eleocharis acutisquamata Buckley -- not accepted -- sharpscale spikerush
  Eleocharis aestuum Hines ex A. Haines -- accepted -- tidal spikerush
  Eleocharis albida Torr. -- accepted -- white spikerush
  Eleocharis ambigens Fernald -- accepted
  Eleocharis annua House -- not accepted
  Eleocharis arenicola Torr. -- not accepted
  Eleocharis atropurpurea (Retz.) J. Presl & C. Presl -- accepted -- purple spikerush
  Eleocharis austrotexana M.C. Johnst. -- not accepted -- Rio Grande spikerush
  Eleocharis baldwinii (Torr.) Chapm. -- accepted -- Baldwin's spikerush
  Eleocharis bella (Piper) Svenson -- accepted -- beautiful spikerush
  Eleocharis bernardina Munz & I.M. Johnst. -- accepted
  Eleocharis bicolor Chapm. -- accepted -- two-tone spikerush
  Eleocharis bifida S.G. Sm. -- accepted -- Glades spikerush
  Eleocharis bolanderi A. Gray -- accepted -- Bolander's spikerush
  Eleocharis brachycarpa Svenson -- accepted -- short-fruited spikerush, shortfruit spikerush
  Eleocharis brittonii Svenson ex Small -- accepted -- Britton's spikerush
  Eleocharis calva Torr. -- not accepted
  Eleocharis calva var. australis (Nees) H. St. John -- not accepted
  Eleocharis cancellata S. Watson -- accepted -- Arizona spikerush
  Eleocharis capillacea auct. non Kunth -- not accepted
  Eleocharis capitata sensu S.F. Blake, non (L.) R. Br. -- not accepted
  Eleocharis capitata var. borealis Svenson -- not accepted
  Eleocharis capitata var. dispar (E.J. Hill) Fernald -- not accepted
  Eleocharis capitata var. pseudoptera Weath. -- not accepted
  Eleocharis capitata var. verrucosa Svenson -- not accepted
  Eleocharis caribaea (Rottb.) S.F. Blake -- not accepted
  Eleocharis caribaea var. dispar (E.J. Hill) S.F. Blake -- not accepted
  Eleocharis carolina Small -- not accepted
  Eleocharis cellulosa Torr. -- accepted -- Gulf Coast spikerush, Gulfcoast spikesedge
  Eleocharis coloradoensis (Britton) Gilly -- accepted -- dwarf spikerush
  Eleocharis compressa Sull. -- accepted -- flat-stem spike-rush, flatstem spikerush, flatstemmed spikesedge
  Eleocharis compressa var. acutisquamata (Buckley) S.G. Sm. -- accepted -- sharpscale spikerush
  Eleocharis compressa var. atrata Svenson -- not accepted
  Eleocharis compressa var. borealis (Svenson) Drapalik & Mohlenbr. -- not accepted
  Eleocharis compressa var. compressa Sull. -- accepted -- flatstem spikerush
  Eleocharis confervoides (Poir.) G.C. Tucker -- not accepted
  Eleocharis congesta D. Don -- accepted -- spikerush
  Eleocharis curtisii Small -- not accepted
  Eleocharis cylindrica Buckley -- accepted -- cylinder spikerush
  Eleocharis decumbens C.B. Clarke -- accepted -- decumbent spikerush
  Eleocharis diandra C. Wright -- accepted -- Wright's spikerush
  Eleocharis diandra var. depressa Fernald -- not accepted
  Eleocharis disciformis Parish -- not accepted
  Eleocharis dulcis (Burm. f.) Trin. ex Hensch. -- accepted -- Chinese water chestnut, Chinese waterchestnut
  Eleocharis ekmanii Kük. -- not accepted
  Eleocharis elegans (Kunth) Roem. & Schult. -- accepted -- elegant spikerush
  Eleocharis elliottii A. Dietr. -- not accepted
  Eleocharis elliptica Kunth -- accepted -- elliptic spikerush
  Eleocharis elliptica var. atrata (Svenson) S.G. Sm. -- not accepted
  Eleocharis elliptica var. compressa (Sull.) Drapalik & Mohlenbr. -- not accepted
  Eleocharis elliptica var. pseudoptera (Weath. ex Svenson) L.J. Harms -- not accepted
  Eleocharis elongata Chapm. -- accepted -- slim spikerush
  Eleocharis engelmanni Steud. -- not accepted
  Eleocharis engelmannii Steud. -- accepted -- Engelmann's spike-rush, Engelmann's spikerush
  Eleocharis engelmannii var. monticola (Fernald) Svenson -- not accepted
  Eleocharis engelmannii var. robusta Fernald -- not accepted
  Eleocharis equisetoides (Elliott) Torr. -- accepted -- jointed spikesedge
  Eleocharis erythropoda Steud. -- accepted -- bald spike-rush, bald spikerush, spikesedge
  Eleocharis fallax Weath. -- accepted -- creeping spikerush
  Eleocharis fistulosa Schult. -- not accepted -- acute spikerush
  Eleocharis flaccida var. olivacea (Torr.) Fernald & Griscom -- not accepted
  Eleocharis flavescens (Poir.) Urb. -- accepted -- yellow spikerush
  Eleocharis flavescens var. flavescens (Poir.) Urb. -- accepted -- yellow spikerush
  Eleocharis flavescens var. fuscescens (Kük.) Svenson -- not accepted
  Eleocharis flavescens var. olivacea (Torr.) Gleason -- accepted -- bright green spikerush
  Eleocharis flavescens var. thermalis (Rydb.) Cronquist -- not accepted -- yellow spikerush
  Eleocharis geniculata (L.) Roem. & Schult. -- accepted -- Canada spikesedge
  Eleocharis halophila (Fernald & Brackett) Fernald & Brackett -- not accepted -- saltmarsh spikerush
  Eleocharis intermedia Schult. -- accepted -- matted spikerush
  Eleocharis interstincta (Vahl) Roem. & Schult. -- accepted -- knotted spikerush
  Eleocharis kamtschatica (C.A. Mey.) Kom. -- accepted -- Kamchatka spikerush
  Eleocharis lanceolata Fernald -- accepted -- daggerleaf spikerush
  Eleocharis leptos (Steud.) Svenson -- not accepted
  Eleocharis leptos var. coloradoensis (Britton) Svenson -- not accepted
  Eleocharis leptos var. johnstonii Svenson -- not accepted
  Eleocharis lindheimeri Svenson -- not accepted
  Eleocharis macounii Fernald -- not accepted -- Macoun's spikerush
  Eleocharis macrostachya Britton -- accepted -- pale spikerush
  Eleocharis mamillata (H. Lindb.) H. Lindb. -- accepted -- soft-stem spikerush
  Eleocharis mamillata auct. non (H. Lindb.) H. Lindb. -- not accepted
  Eleocharis mamillata ssp. mamillata (H. Lindb.) H. Lindb. -- accepted -- soft-stem spikerush
  Eleocharis melanocarpa Torr. -- accepted -- blackfruit spikerush
  Eleocharis membranacea (Buckley) Gilly -- not accepted
  Eleocharis microcarpa Torr. -- accepted -- smallfruit spikerush
  Eleocharis microcarpa var. brittonii (Svenson ex Small) Svenson -- not accepted
  Eleocharis microcarpa var. filiculmis Torr. -- accepted
  Eleocharis microcarpa var. microcarpa Torr. -- accepted
  Eleocharis minima Kunth -- accepted -- small spikerush
  Eleocharis minima var. ambigua Kük. -- not accepted
  Eleocharis minima var. bicolor (Chapm.) Svenson -- not accepted
  Eleocharis minutiflora Boeckeler -- not accepted
  Eleocharis montana (Kunth) Roem. & Schult. -- accepted -- mountain spike-rush, mountain spikerush
  Eleocharis montana var. nodulosa (Roth) Svenson -- not accepted
  Eleocharis montevidensis Kunth -- accepted -- sand spikerush
  Eleocharis montevidensis var. bolanderi (A. Gray) V.E. Grant -- not accepted
  Eleocharis montevidensis var. decumbens (C.B. Clarke) V.E. Grant -- not accepted
  Eleocharis montevidensis var. disciformis (Parish) V.E. Grant -- not accepted
  Eleocharis montevidensis var. parishii (Britton) V.E. Grant -- not accepted
  Eleocharis monticola Fernald -- not accepted
  Eleocharis monticola var. pallida H. St. John -- not accepted
  Eleocharis multiflora Chapm. -- not accepted
  Eleocharis mutata (L.) Roem. & Schult. -- accepted -- scallion grass
  Eleocharis nana Kunth -- accepted -- hair-like spikerush, hairlike spikerush
  Eleocharis nigrescens (Nees) Steud. -- accepted -- black spikerush
  Eleocharis nigrescens var. minutiflora (Boeckeler) Svenson -- not accepted
  Eleocharis nitida Fernald -- accepted -- quill spikerush
  Eleocharis nodulosa (Roth) Schult. -- not accepted
  Eleocharis obtusa (Willd.) Schult. -- accepted -- blunt spikerush, blunt spikesedge
  Eleocharis obtusa var. detonsa (A. Gray) Drapalik & Mohlenbr. -- not accepted
  Eleocharis obtusa var. ellipsoidalis Fernald ex Svenson -- not accepted
  Eleocharis obtusa var. engelmannii (Steud.) Gilly -- not accepted
  Eleocharis obtusa var. gigantea Fernald -- not accepted
  Eleocharis obtusa var. heuseri Uechtr. -- not accepted
  Eleocharis obtusa var. jejuna Fernald -- not accepted
  Eleocharis obtusa var. lanceolata (Fernald) Gilly -- not accepted
  Eleocharis obtusa var. ovata (Roth) Drapalik & Mohlenbr. -- not accepted
  Eleocharis obtusa var. peasei Svenson -- not accepted
  Eleocharis obtusetrigona (Lindl. & Nees) Steud. -- accepted
  Eleocharis occulta S.G. Sm. -- accepted -- limestone spikerush
  Eleocharis ochrostachys Steud. -- accepted -- spikerush
  Eleocharis oligantha C.B. Clarke -- accepted -- fewflowered spikerush
  Eleocharis olivacea Torr. -- not accepted -- bright green spikerush
  Eleocharis olivacea var. olivacea Torr. -- not accepted -- bright green spikerush
  Eleocharis olivacea var. reductiseta (Schuyler & Ferren) Schuyler & Ferren -- not accepted -- bright green spikerush
  Eleocharis ovata (Roth) Roem. & Schult. -- accepted -- ovate spikerush, ovoid spike-rush, ovoid spikerush
  Eleocharis ovata var. detonsa (A. Gray) Mohlenbr. -- not accepted
  Eleocharis ovata var. engelmannii (Steud.) Britton -- not accepted
  Eleocharis ovata var. obtusa (Willd.) Kük. -- not accepted
  Eleocharis pachycarpa Desv. -- accepted -- black sand spikerush, blacksand spikerush
  Eleocharis pachystyla (C. Wright) C.B. Clarke -- accepted -- false junco
  Eleocharis palmeri Svenson -- not accepted -- Palmer's spikerush
  Eleocharis palustris (L.) Roem. & Schult. -- accepted -- common spikerush, creeping spike-rush, creeping spikerush, marsh spike-rush, spikesedge
  Eleocharis palustris var. australis Nees -- not accepted
  Eleocharis palustris var. major Sond. -- not accepted
  Eleocharis palustris var. vigens L.H. Bailey -- not accepted
  Eleocharis parishii Britton -- accepted -- Parish spikerush, Parish's spikerush
  Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer -- accepted -- dwarf spikerush, dwarf spikesedge, little-head spike-rush, little-head spikerush
  Eleocharis parvula var. anachaeta (Torr.) Svenson -- not accepted
  Eleocharis parvula var. coloradoensis (Britton) Beetle -- not accepted
  Eleocharis pauciflora (Lightf.) Link -- not accepted
  Eleocharis pauciflora var. bernardina (Munz & I.M. Johnst.) Svenson -- not accepted
  Eleocharis pauciflora var. fernaldii Svenson -- not accepted
  Eleocharis pauciflora var. suksdorfiana (Beauverd) Svenson -- not accepted
  Eleocharis perlonga Fernald & Brackett -- not accepted
  Eleocharis praticola Britton -- not accepted
  Eleocharis prolifera Torr. -- not accepted
  Eleocharis quadrangulata (Michx.) Roem. & Schult. -- accepted -- squarestem spikerush, squarestem spikesedge
  Eleocharis quadrangulata var. crassior Fernald -- not accepted
  Eleocharis quinqueflora (Hartmann) O. Schwarz -- accepted -- few-flower spike-rush, few-flower spikerush, fewflower spikerush, fewflowered spikesedge
  Eleocharis quinqueflora ssp. fernaldii (Svenson) Hultén -- not accepted
  Eleocharis quinqueflora ssp. suksdorfiana (Beauverd) Hultén -- not accepted
  Eleocharis quinqueflora var. bernardina (Munz & I.M. Johnst.) S. González & P.M. Peterson -- not accepted
  Eleocharis quinqueflora var. suksdorfiana (Beauverd) J.T. Howell -- not accepted
  Eleocharis radicans (A. Dietr.) Kunth -- accepted -- rooted spikerush
  Eleocharis ravenelii Britton -- accepted -- Rio Grande spikerush
  Eleocharis retroflexa (Poir.) Urb. -- accepted -- coastal plain spikerush
  Eleocharis reverchonii Svenson -- accepted -- Reverchon's spikerush
  Eleocharis robbinsii Oakes -- accepted -- éléocharide de Robbins, robbins spikerush, Robbins' spikerush
  Eleocharis rostellata (Torr.) Torr. -- accepted -- beaked spike-rush, beaked spikerush, beaked spikesedge
  Eleocharis rostellata var. congdonii Jeps. -- not accepted
  Eleocharis rostellata var. occidentalis S. Watson -- not accepted
  Eleocharis schaffneri Boeckeler -- accepted -- Schaffner's spikerush
  Eleocharis setifolia auct. non (A. Rich.) A. Raynal -- not accepted -- smallflower spikerush
  Eleocharis shaferi Britton -- not accepted
  Eleocharis simplex auct. non (Elliott) A. Dietr. -- not accepted
  Eleocharis simplex (Elliott) A. Dietr. -- not accepted
  Eleocharis sintenisii Boeckeler -- accepted -- Sintenis' spikerush
  Eleocharis smallii Britton -- not accepted -- Small's spikerush
  Eleocharis smallii var. major (Sond.) F. Seym. -- not accepted
  Eleocharis suksdorfiana Beauverd -- accepted -- Suksdorf's spikerush
  Eleocharis tenuis (Willd.) Schult. -- accepted -- slender spikerush
  Eleocharis tenuis var. atrata (Svenson) B. Boivin -- not accepted
  Eleocharis tenuis var. borealis (Svenson) Gleason -- not accepted
  Eleocharis tenuis var. pseudoptera (Weath.) Svenson -- accepted -- slender spikerush
  Eleocharis tenuis var. tenuis (Willd.) Schult. -- accepted -- slender spikerush
  Eleocharis tenuis var. verrucosa (Svenson) Svenson -- accepted -- slender spikerush
  Eleocharis thermalis Rydb. -- not accepted
  Eleocharis torreyana Boeckeler -- not accepted
  Eleocharis torticulmis S.G. Sm. -- accepted -- twist-stem spikerush
  Eleocharis tortilis (Link) Schult. -- accepted -- twisted spikerush
  Eleocharis tricostata Torr. -- accepted -- three-angle spikerush
  Eleocharis tuberculosa (Michx.) Roem. & Schult. -- accepted -- cone-cup spikerush
  Eleocharis tuberculosa var. pubnicoensis Fernald -- not accepted
  Eleocharis tuberosa (Roxb.) Schult. -- not accepted
  Eleocharis uncialis Chapm. ex Small -- not accepted
  Eleocharis uniglumis (Link) Schult. -- accepted -- onescale spikerush
  Eleocharis uniglumis var. halophila Fernald & Brackett -- not accepted
  Eleocharis verrucosa (Svenson) L.J. Harms -- not accepted
  Eleocharis vivipara Link -- accepted -- viviparous spikerush
  Eleocharis wolfii (A. Gray) A. Gray ex Britton -- accepted -- wolf's spike-rush, Wolf's spikerush
  Eleocharis X macounii Fernald -- accepted -- Macoun's spikerush
  Eleocharis xyridiformis Fernald & Brackett -- not accepted
  Eleocharis yunquensis Britton -- not accepted
  Elyna Schrad. -- not accepted
  Elyna bellardii (All.) C. Koch -- not accepted
  Elyna sibirica Turcz. ex Ledeb. -- not accepted
  Eriophorum L. -- accepted -- cottongrass
  Eriophorum alpinum L. -- not accepted -- alpine cottongrass
  Eriophorum altaicum Meinsh. -- not accepted -- whitebristle cottongrass
  Eriophorum altaicum var. altaicum Meinsh. -- not accepted -- whitebristle cottongrass
  Eriophorum altaicum var. neogaeum Raymond -- not accepted -- whitebristle cottongrass
  Eriophorum angustifolium Honck. -- accepted -- narrowleaf cottonsedge, tall cotton-grass, tall cottongrass
  Eriophorum angustifolium ssp. angustifolium Honck. -- accepted -- tall cottongrass
  Eriophorum angustifolium ssp. scabriusculum Hultén -- not accepted -- tall cottongrass
  Eriophorum angustifolium ssp. subarcticum (Vassil.) Hultén ex Kartesz & Gandhi -- not accepted -- tall cotton-grass, tall cottongrass
  Eriophorum angustifolium ssp. subarcticum var. coloratum Hultén -- not accepted -- tall cottongrass
  Eriophorum angustifolium ssp. subarcticum var. majus F.W. Schultz -- not accepted -- tall cottongrass
  Eriophorum angustifolium ssp. subarcticum var. subarcticum (Vassil.) Kartesz & Gandhi -- not accepted -- coldswamp cottonsedge
  Eriophorum angustifolium ssp. triste (Th. Fr.) Hultén -- accepted -- tall cottongrass
  Eriophorum angustifolium var. coloratum Hultén -- not accepted
  Eriophorum angustifolium var. giganteum Hultén -- not accepted
  Eriophorum angustifolium var. majus F.W. Schultz -- not accepted
  Eriophorum brachyantherum Trautv. & C.A. Mey. -- accepted -- northland cottonsedge
  Eriophorum brachyantherum var. brachyantherum Trautv. & C.A. Mey. -- not accepted -- northland cottonsedge
  Eriophorum brachyantherum var. pellucidum Lepage -- not accepted -- northland cottonsedge
  Eriophorum callitrix Cham. ex C.A. Mey. -- accepted -- arctic cottongrass, arctic cottonsedge
  Eriophorum callitrix var. callitrix Cham. ex C.A. Mey. -- not accepted -- arctic cottongrass
  Eriophorum callitrix var. moravium Raymond -- not accepted -- arctic cottongrass
  Eriophorum callitrix var. pallidus Hultén -- not accepted
  Eriophorum chamissonis C.A. Mey. -- accepted -- Chamisso's cotton-grass, Chamisso's cottongrass, russet cottonsedge
  Eriophorum chamissonis var. albidum (F. Nyl.) Fernald -- not accepted
  Eriophorum chamissonis var. aquatile (Norman) Fernald -- not accepted
  Eriophorum crinigerum (A. Gray) Beetle -- accepted -- fringed cottongrass
  Eriophorum gracile W.D.J. Koch -- accepted -- slender cotton-grass, slender cottongrass, slender cottonsedge
  Eriophorum gracile var. caurianum Fernald -- not accepted -- slender cottongrass
  Eriophorum gracile var. gracile W.D.J. Koch -- not accepted -- slender cottongrass
  Eriophorum opacum (Björnstr.) Fernald -- not accepted
  Eriophorum polystachion L. p.p. -- not accepted
  Eriophorum russeolum Fr. -- accepted -- red cottongrass
  Eriophorum russeolum ssp. leiocarpum M.S. Novos. -- accepted
  Eriophorum russeolum ssp. rufescens (Andersson) Hyl. -- not accepted
  Eriophorum russeolum ssp. russeolum Fr. -- accepted
  Eriophorum russeolum var. albidum F. Nyl. -- not accepted -- red cottongrass
  Eriophorum russeolum var. majus Sommier -- not accepted -- red cottongrass
  Eriophorum russeolum var. russeolum Fr. -- not accepted -- red cottongrass
  Eriophorum scheuchzeri Hoppe -- accepted -- dense cotton-grass, shealted cotton-grass, white cottongrass, white cottonsedge
  Eriophorum scheuchzeri ssp. arcticum M.S. Novos. -- accepted
  Eriophorum scheuchzeri ssp. scheuchzeri Hoppe -- accepted -- dense cotton-grass, shealted cotton-grass
  Eriophorum scheuchzeri var. tenuifolium Ohwi -- not accepted
  Eriophorum spissum Fernald -- not accepted
  Eriophorum spissum var. erubescens (Fernald) Fernald -- not accepted
  Eriophorum tenellum Nutt. -- accepted -- fewnerved cottongrass
  Eriophorum tenellum var. monticola Fernald -- not accepted
  Eriophorum triste (Th. Fr.) Hadac & Á. Löve -- not accepted
  Eriophorum vaginatum L. -- accepted -- tussock cottongrass
  Eriophorum vaginatum ssp. spissum (Fernald) Hultén -- not accepted
  Eriophorum vaginatum var. spissum (Fernald) B. Boivin -- not accepted -- tussock cottongrass
  Eriophorum vaginatum var. vaginatum L. -- not accepted -- tussock cottongrass
  Eriophorum virginicum L. -- accepted -- tawny cottongrass
  Eriophorum viridicarinatum (Engelm.) Fernald -- accepted -- tassel cotton-grass, thinleaf cottonsedge
  Eriophorum X beringianum Raymond -- accepted -- Bering cottongrass
  Eriophorum X churchillianum Lepage -- accepted -- Churchill cottongrass
  Eriophorum X gauthieri B. Boivin -- not accepted
  Eriophorum X medium Andersson -- accepted -- intermediate cottongrass, medium cottongrass
  Eriophorum X medium ssp. album J. Cay. -- accepted -- intermediate cottongrass
  Eriophorum X medium ssp. medium Andersson -- accepted -- intermediate cottongrass
  Eriophorum X porsildii Raymond -- accepted -- Porsild's cottongrass
  Eriophorum X pylaieanum Raymond -- accepted -- cottongrass
  Eriophorum X rousseauanum Raymond -- accepted -- Rousseau's cottongrass
  Eriophorum X sorensenii Raymond -- not accepted
  Fimbristylis Vahl -- accepted -- fimbry
  Fimbristylis aestivalis (Retz.) Vahl -- accepted -- summer fimbry
  Fimbristylis alamosana Fernald -- not accepted
  Fimbristylis annua (All.) Roem. & Schult. -- not accepted -- annual fimbry
  Fimbristylis anomala Boeckeler -- not accepted
  Fimbristylis atollensis H. St. John -- not accepted
  Fimbristylis autumnalis (L.) Roem. & Schult. -- accepted -- slender fimbry
  Fimbristylis autumnalis var. mucronulata (Michx.) Fernald -- not accepted
  Fimbristylis baldwiniana (Schult.) Torr. -- not accepted
  Fimbristylis bengalensis (Pers.) Roem. & Schult. -- not accepted -- fimbry
  Fimbristylis boninensis Hayata -- not accepted
  Fimbristylis brevivaginata Kral -- accepted -- glade fimbry
  Fimbristylis capillaris (L.) A. Gray -- not accepted
  Fimbristylis caroliniana (Lam.) Fernald -- accepted -- Carolina fimbry
  Fimbristylis castanea (Michx.) Vahl -- not accepted -- marsh fimbry, saltmarsh fimbristylis
  Fimbristylis castanea var. puberula (Michx.) Britton -- not accepted
  Fimbristylis complanata (Retz.) Link -- accepted -- Puerto Rico fimbry
  Fimbristylis curassavica (Britton) Alain -- not accepted
  Fimbristylis cymosa R. Br. -- accepted -- tropical fimbry
  Fimbristylis cymosa ssp. cymosa R. Br. -- accepted -- tropical fimbry
  Fimbristylis cymosa ssp. spathacea (Roth) T. Koyama -- accepted
  Fimbristylis cymosa ssp. umbellatacapitata (Hillebr.) T. Koyama -- not accepted -- tropical fimbry
  Fimbristylis decipiens Kral -- accepted -- southern fimbry
  Fimbristylis dichotoma (L.) Vahl -- accepted -- forked fimbry
  Fimbristylis diphylla (Retz.) Vahl -- not accepted
  Fimbristylis drummondii (Torr. & Hook. ex Torr.) Boeckeler -- not accepted
  Fimbristylis ferruginea (L.) Vahl -- accepted -- West Indian fimbry
  Fimbristylis geminata (Nees) Kunth -- not accepted
  Fimbristylis globulosa (Retz.) Kunth -- not accepted -- globe fimbry
  Fimbristylis harperi Britton ex Small -- not accepted
  Fimbristylis harrisii (Britton) C.D. Adams -- not accepted -- Harris' fimbry
  Fimbristylis hawaiiensis Hillebr. -- accepted -- Hawai'i fimbry
  Fimbristylis inaguensis Britton -- accepted -- Bahama fimbry
  Fimbristylis interior Britton -- not accepted
  Fimbristylis juncoides (Vahl) Alain -- not accepted
  Fimbristylis laxa Vahl -- not accepted
  Fimbristylis littoralis Gaudich. -- accepted -- fimbry
  Fimbristylis miliacea (L.) Vahl -- not accepted -- grass-like fimbry, grasslike fimbry
  Fimbristylis monostachya (L.) Hassk. -- not accepted
  Fimbristylis ovata (Burm. f.) J. Kern -- not accepted
  Fimbristylis pauciflora R. Br. -- accepted -- fimbry
  Fimbristylis perpusilla R.M. Harper ex Small & Britton -- accepted -- Harper's fimbry
  Fimbristylis pilosa Vahl -- accepted
  Fimbristylis portoricensis (Britton) Alain -- not accepted
  Fimbristylis puberula (Michx.) Vahl -- accepted -- hairy fimbry
  Fimbristylis puberula var. drummondii (Torr. & Hook.) D.B. Ward -- not accepted
  Fimbristylis puberula var. interior (Britton) Kral -- accepted -- hairy fimbry
  Fimbristylis puberula var. puberula (Michx.) Vahl -- accepted -- hairy fimbry
  Fimbristylis pycnocephala Hillebr. -- not accepted
  Fimbristylis quinquangularis (Vahl) Kunth -- accepted -- fiveangle fimbry
  Fimbristylis schoenoides (Retz.) Vahl -- accepted -- ditch fimbry
  Fimbristylis spadicea auct. non (L.) Vahl -- not accepted
  Fimbristylis spathacea Roth -- not accepted -- hurricanegrass
  Fimbristylis squarrosa Vahl -- accepted
  Fimbristylis thermalis S. Watson -- accepted -- hot springs fimbry, hotsprings fimbry
  Fimbristylis tomentosa Vahl -- not accepted -- woolly fimbry
  Fimbristylis tristachya R. Br. -- accepted -- fimbry
  Fimbristylis umbellaris (Lam.) Vahl -- accepted
  Fimbristylis vahlii (Lam.) Link -- accepted -- Vahl's fimbry
  Fimbristylis vestita (Kunth) Hemsl. -- not accepted
  Fuirena Rottb. -- accepted -- umbrella-sedge, umbrellasedge
  Fuirena breviseta (Coville) Coville -- accepted -- saltmarsh umbrella-sedge, saltmarsh umbrellasedge
  Fuirena bushii Kral -- accepted -- Bush's umbrella-sedge, Bush's umbrellasedge
  Fuirena caerulescens Steud. -- not accepted -- blue umbrella-sedge
  Fuirena ciliata Bush -- not accepted
  Fuirena coerulescens Steud. -- accepted -- blue umbrella-sedge, umbrellasedge
  Fuirena hispida Elliott -- not accepted
  Fuirena longa Chapm. -- accepted -- coastal plain umbrella-sedge, coastalplain umbrella-sedge, coastalplain umbrellasedge
  Fuirena pumila (Torr.) Spreng. -- accepted -- dwarf umbrella-sedge, dwarf umbrellasedge
  Fuirena scirpoidea Michx. -- accepted -- southern umbrella-sedge, southern umbrellasedge
  Fuirena simplex Vahl -- accepted -- western umbrella-sedge, western umbrellasedge
  Fuirena simplex var. aristulata (Torr.) Kral -- accepted -- western umbrella-sedge, western umbrellasedge
  Fuirena simplex var. simplex Vahl -- accepted -- western umbrella-sedge, western umbrellasedge
  Fuirena squarrosa Michx. -- accepted -- hairy umbrella-sedge, hairy umbrellasedge
  Fuirena squarrosa var. aristulata Torr. -- not accepted
  Fuirena squarrosa var. breviseta Coville -- not accepted
  Fuirena squarrosa var. pumila Torr. -- not accepted
  Fuirena torreyana Beck -- not accepted
  Fuirena umbellata Rottb. -- accepted -- yefen
  Gahnia J.R. Forst. & G. Forst. -- accepted -- sawsedge
  Gahnia aspera Spreng. -- accepted -- round sawsedge
  Gahnia aspera ssp. globosa (H. Mann) J. Kern -- accepted -- round sawsedge
  Gahnia beecheyi H. Mann -- accepted -- forest sawsedge
  Gahnia gahniiformis (Gaudich.) A. Heller -- not accepted -- Gaudichaud's sawsedge
  Gahnia globosa H. Mann -- not accepted
  Gahnia kauaiensis Benl -- not accepted
  Gahnia lanaiensis O. Deg., I. Deg. & J. Kern -- accepted -- Lanai sawsedge
  Gahnia vitiensis Rendle -- accepted -- Fijian sawsedge
  Gahnia vitiensis ssp. kauaiensis (Benl) T. Koyama -- accepted -- Kauai sawsedge
  Heleocharis flaccida (Rchb.) Urb. -- not accepted
  Heleocharis flaccida var. fuscescens Kük. -- not accepted
  Hemicarpha Nees -- not accepted
  Hemicarpha aristulata (Coville) Smyth -- not accepted
  Hemicarpha drummondii Nees -- not accepted
  Hemicarpha micrantha (Vahl) Pax -- not accepted
  Hemicarpha micrantha var. aristulata Coville -- not accepted
  Hemicarpha micrantha var. drummondii (Nees) Friedl. -- not accepted
  Hemicarpha micrantha var. minor (Schrad.) Friedl. -- not accepted
  Hemicarpha occidentalis A. Gray -- not accepted
  Holoschoenus romanus (L.) Fritsch -- not accepted
  Holoschoenus vulgaris Link -- not accepted
  Hymenochaeta triquetra (L.) Nakai -- not accepted
  Hypolytrum Pers. -- accepted
  Hypolytrum berteroi Spreng. -- not accepted
  Hypolytrum dissitiflorum Steud. -- accepted
  Hypolytrum flavinux (T. Koyama) D.A. Simpson -- accepted
  Isolepis R. Br. -- accepted -- bulrush, Isolepis
  Isolepis carinata Hook. & Arn. ex Torr. -- accepted -- keeled bulrush
  Isolepis cernua (Vahl) Roem. & Schult. -- accepted -- low bulrush
  Isolepis fluitans (L.) R. Br. -- accepted
  Isolepis funckii Steud. -- not accepted
  Isolepis hystrix (Thunb.) Nees -- accepted -- bottlebrush bulrush
  Isolepis junciformis Kunth -- not accepted
  Isolepis koilolepis Steud. -- not accepted
  Isolepis molesta (M.C. Johnst.) S.G. Sm. -- not accepted -- Gulf Coast bulrush
  Isolepis prolifera (Rottb.) R. Br. -- accepted -- proliferating bulrush
  Isolepis pseudosetacea (Daveau) Gand. -- accepted -- Gulf Coast bulrush
  Isolepis setacea (L.) R. Br. -- accepted -- bristleleaf bulrush
  Isolepis vestita Kunth -- not accepted
  Isolepis warei Torr. -- not accepted
  Juncellus serotinus (Rottb.) C.B. Clarke -- not accepted
  Kobresia Willd. -- accepted -- bog sedge
  Kobresia bellardii (All.) K. Koch -- not accepted
  Kobresia bellardii var. macrocarpa (Clokey ex Mack.) H.D. Harr. -- not accepted
  Kobresia bipartita (All.) Dalla Torre -- not accepted
  Kobresia elachycarpa (Fernald) Fernald -- not accepted
  Kobresia hyperborea A.E. Porsild -- not accepted
  Kobresia hyperborea var. alaskana Duman -- not accepted
  Kobresia macrocarpa Clokey ex Mack. -- not accepted
  Kobresia myosuroides (Vill.) Fiori -- accepted -- Bellardi bog sedge, Bellardi kobresia
  Kobresia schoenoides (C.A. Mey.) Steud. p.p. -- not accepted
  Kobresia schoenoides var. lepagei (Duman) B. Boivin -- not accepted
  Kobresia sibirica (Turcz. ex Ledeb.) Boeckeler -- accepted -- Siberian bog sedge
  Kobresia simpliciuscula (Wahlenb.) Mack. -- accepted -- simple bog sedge
  Kobresia simpliciuscula var. americana Duman -- not accepted
  Kyllinga Rottb. -- accepted -- spikesedge
  Kyllinga brevifolia Rottb. -- accepted -- shortleaf spikesedge
  Kyllinga brevifolioides (Thieret & Delahouss.) G.C. Tucker -- not accepted
  Kyllinga gracillima Miq. -- accepted -- pasture spikesedge
  Kyllinga nemoralis (J.R. Forst. & G. Forst.) Dandy ex Hutch. & Dalziel -- accepted -- whitehead spikesedge
  Kyllinga odorata Vahl -- accepted -- fragrant spikesedge
  Kyllinga peruviana Lam. -- not accepted
  Kyllinga pumila Michx. -- accepted -- low spikesedge
  Kyllinga pungens Link -- not accepted
  Kyllinga sesquiflora Torr. -- not accepted
  Kyllinga squamulata Thonn. ex Vahl -- accepted -- Asian spikesedge
  Kyllinga tenuifolia Steud. -- not accepted
  Kyllinga tibialis Ledeb. -- accepted -- Peruvian spikesedge
  Kyllinga vaginata Lam. -- accepted -- Caribbean island spikesedge
  Lagenocarpus Nees -- accepted -- lagenocarpus
  Lagenocarpus guianensis Lindl. & Nees -- accepted -- burr sedge
  Lagenocarpus portoricensis Britton -- not accepted
  Lepironia Pers. -- accepted
  Lepironia articulata (Retz.) Domin -- accepted
  Leucocoma alpina (L.) Rydb. -- not accepted
  Lipocarpha R. Br. -- accepted -- halfchaff sedge, lipocarpha
  Lipocarpha aristulata (Coville) G.C. Tucker -- accepted -- awned halfchaff sedge
  Lipocarpha drummondii (Nees) G.C. Tucker -- accepted -- Drummond's halfchaff sedge
  Lipocarpha maculata (Michx.) Torr. -- accepted -- American halfchaff sedge
  Lipocarpha micrantha (Vahl) G.C. Tucker -- accepted -- dwarf bulrush, lipocarphe ŕ petites fleurs, small-flower halfchaff sedge, smallflower halfchaff sedge, smallflower hemicarpha
  Lipocarpha microcephala (R. Br.) Kunth -- accepted
  Lipocarpha microcephala auct. non Kunth -- not accepted -- smallhead halfchaff sedge
  Lipocarpha occidentalis (A. Gray) G.C. Tucker -- accepted -- western halfchaff sedge
  Lipocarpha rehmannii (Ridl.) Goetgh. -- accepted -- Rehman's halfchaff sedge
  Machaerina Vahl -- accepted -- twigrush
  Machaerina angustifolia (Gaudich.) T. Koyama -- accepted -- Polynesian twigrush
  Machaerina falcata (Nees) T. Koyama -- accepted -- twigrush
  Machaerina gahniiformis (Gaudich.) J. Kern -- not accepted
  Machaerina mariscoides (Gaudich.) J. Kern -- accepted -- tropical twigrush
  Machaerina mariscoides ssp. colpodes (Lauterb.) T. Koyama -- accepted
  Machaerina mariscoides ssp. mariscoides (Gaudich.) J. Kern -- accepted -- tropical twigrush
  Machaerina mariscoides ssp. meyenii (Kunth) T. Koyama -- accepted -- Meyen's twigrush
  Machaerina restioides (Sw.) Vahl -- accepted -- forest twigrush
  Mapania Aubl. -- accepted
  Mapania flavinux T. Koyama -- not accepted
  Mapania macrocephala K. Schum ex Warb -- accepted
  Mapania pandanophylla (Domin) T. Koyama -- not accepted
  Mapania parvibracteata (C.B. Clarke) T. Koyama -- not accepted
  Mapania sumatrana (Miq.) Benth. -- accepted
  Mapania sumatrana ssp. pandanophylla (F. Muell.) D.A. Simpson -- accepted
  Mariscus californicus (S. Watson) Fernald -- not accepted
  Mariscus capillaris (Sw.) Vahl -- not accepted
  Mariscus cayennensis (Lam.) Urb. -- not accepted
  Mariscus confertus (Sw.) C.B. Clarke -- not accepted
  Mariscus congestus (Vahl) C.B. Clarke -- not accepted
  Mariscus cylindricus Elliott -- not accepted
  Mariscus cyperinus (Retz.) Vahl -- not accepted
  Mariscus fauriei (Kük.) T. Koyama -- not accepted
  Mariscus fendlerianus (Boeckeler) T. Koyama -- not accepted
  Mariscus filiculmis auct. non (Vahl) T. Koyama -- not accepted
  Mariscus flavus Vahl -- not accepted
  Mariscus fuligineus (Chapm.) C.B. Clarke -- not accepted
  Mariscus globulosus auct. non (Aubl.) Urb. -- not accepted
  Mariscus gracilis Vahl -- not accepted
  Mariscus hillebrandii (Boeckeler) T. Koyama -- not accepted
  Mariscus hillebrandii ssp. decipiens (Hillebr.) T. Koyama -- not accepted
  Mariscus huarmensis Kunth -- not accepted
  Mariscus hypochlorus (Hillebr.) C.B. Clarke -- not accepted
  Mariscus hypochlorus ssp. brevior (Kük.) T. Koyama -- not accepted
  Mariscus jamaicensis (Crantz) Britton -- not accepted
  Mariscus javanicus (Houtt.) Merr. & F.P. Metcalf -- not accepted
  Mariscus kunthianus Gaudich. -- not accepted
  Mariscus ligularis (L.) Urb. -- not accepted
  Mariscus mariscoides (Muhl.) Kuntze -- not accepted
  Mariscus meyenianus (Kunth) Nees -- not accepted
  Mariscus mutisii Kunth -- not accepted
  Mariscus pedunculatus (R. Br.) T. Koyama -- not accepted
  Mariscus pennatiformis (Kük.) T. Koyama -- not accepted
  Mariscus pennatiformis ssp. bryanii (Kük.) T. Koyama -- not accepted
  Mariscus phleoides Nees -- not accepted
  Mariscus phleoides ssp. hawaiensis (H. Mann) T. Koyama -- not accepted
  Mariscus planifolius (Rich.) Urb. -- not accepted
  Mariscus polystachyos auct. non A. Rich. -- not accepted
  Mariscus pubescens J. Presl & C. Presl, non Cyperus pubescens Steud. -- not accepted
  Mariscus restioides (Sw.) Kuntze -- not accepted
  Mariscus rockii (Kük.) T. Koyama -- not accepted
  Mariscus sandwicensis (Kük.) T. Koyama -- not accepted
  Mariscus schweinitzii (Torr.) T. Koyama -- not accepted
  Mariscus urbanii (Boeckeler) C.B. Clarke -- not accepted
  Morelotia Gaudich. -- accepted
  Morelotia gahniiformis Gaudich. -- accepted -- Gaudichaud's sawsedge
  Oncostylis pauciflora Liebm. -- not accepted
  Oreobolus R. Br. -- accepted -- oreobolus
  Oreobolus furcatus H. Mann -- accepted -- Hawai'i Island sedge
  Oxycaryum Nees -- accepted -- bulrush
  Oxycaryum cubense (Poepp. & Kunth) Lye -- accepted -- Cuban bulrush
  Paramapania Uittien -- accepted
  Paramapania parvibracteata (C.B. Clarke) Uittien -- accepted
  Psilocarya Torr. -- not accepted
  Psilocarya corymbifera (C. Wright) Britton -- not accepted
  Psilocarya corymbiformis Benth. -- not accepted
  Psilocarya nitens (Vahl) Alph. Wood -- not accepted
  Psilocarya portoricensis Britton -- not accepted
  Psilocarya rufa Nees -- not accepted
  Psilocarya schiedeana (Nees) Liebm. -- not accepted
  Psilocarya scirpoides Torr. -- not accepted
  Psilocarya scirpoides var. grimesii Fernald & Griscom -- not accepted
  Pycreus P. Beauv. -- accepted
  Pycreus flavescens (L.) Rchb. -- not accepted
  Pycreus flavicomus (Michx.) C.D. Adams -- not accepted
  Pycreus flavidus (Retz.) T. Koyama -- accepted
  Pycreus niger (Ruiz & Pav.) Cufod. -- not accepted
  Pycreus polystachyos (Rottb.) P. Beauv. -- not accepted
  Pycreus polystachyos ssp. holosericeus (Link) T. Koyama -- not accepted
  Pycreus rivularis (Kunth) Palla -- not accepted
  Pycreus sanguindentus (Vahl) Nees -- not accepted
  Pycreus sanguinolentus (Vahl) Nees -- not accepted
  Pycreus unioloides (R. Br.) C.B. Clarke -- not accepted
  Remirea Aubl. -- accepted -- beachstar
  Remirea maritima Aubl. -- accepted -- beachstar
  Rhynchospora Vahl -- accepted -- beaksedge, rhynchospora
  Rhynchospora alba (L.) Vahl -- accepted -- white beaksedge
  Rhynchospora axillaris (Lam.) Britton -- not accepted
  Rhynchospora bahamensis Britton -- not accepted
  Rhynchospora baldwinii A. Gray -- accepted -- Baldwin's beaksedge
  Rhynchospora berteroi (Spreng.) C.B. Clarke -- accepted -- little beaksedge
  Rhynchospora blauneri Britton -- not accepted
  Rhynchospora borinquensis Britton -- not accepted
  Rhynchospora brachychaeta C. Wright -- accepted -- West Indian beaksedge
  Rhynchospora breviseta (Gale) Channell -- not accepted -- shortbristle beaksedge
  Rhynchospora bruneri Britton -- not accepted
  Rhynchospora caduca Elliott -- accepted -- anglestem beaksedge
  Rhynchospora californica Gale -- accepted -- California beaked-rush, California beaksedge
  Rhynchospora capillacea Torr. -- accepted -- horned beakrush, needle beaksedge
  Rhynchospora capillacea var. leviseta E.J. Hill ex A. Gray -- not accepted
  Rhynchospora capitellata (Michx.) Vahl -- accepted -- brownish beakrush, brownish beaksedge
  Rhynchospora careyana Fernald -- accepted -- broadfruit horned beaksedge
  Rhynchospora cephalantha A. Gray -- accepted -- bunched beaksedge
  Rhynchospora cephalantha var. attenuata Gale -- not accepted -- bunched beaksedge
  Rhynchospora cephalantha var. cephalantha A. Gray -- not accepted -- bunched beaksedge
  Rhynchospora cephalantha var. microcephala (Britton) Kük. -- not accepted -- bunched beaksedge
  Rhynchospora cephalantha var. pleiocephala Fernald & Gale -- not accepted -- bunched beaksedge
  Rhynchospora chalarocephala Fernald & Gale -- accepted -- loosehead beaksedge
  Rhynchospora chalarocephala var. angusta Gale -- not accepted -- loosehead beaksedge
  Rhynchospora chalarocephala var. chalarocephala Fernald & Gale -- not accepted -- loosehead beaksedge
  Rhynchospora chapmanii M.A. Curtis -- accepted -- Chapman's beaksedge
  Rhynchospora chinensis Nees & Meyen -- accepted -- spiked beaksedge
  Rhynchospora chinensis ssp. chinensis Nees & Meyen -- accepted -- spiked beaksedge
  Rhynchospora chinensis ssp. spiciformis (Hillebr.) T. Koyama -- accepted -- spiked beaksedge
  Rhynchospora ciliaris (Michx.) C. Mohr -- accepted -- fringed beaksedge
  Rhynchospora colorata (L.) H. Pfeiff. -- accepted -- starrush whitetop
  Rhynchospora compressa J. Carey ex Chapm. -- accepted -- flatfruit beaksedge
  Rhynchospora corniculata (Lam.) A. Gray -- accepted -- shortbristle horned beaksedge
  Rhynchospora corniculata var. corniculata (Lam.) A. Gray -- not accepted -- shortbristle horned beaksedge
  Rhynchospora corniculata var. interior Fernald -- not accepted -- shortbristle horned beaksedge
  Rhynchospora corymbosa (L.) Britton -- accepted -- matamat
  Rhynchospora crinipes Gale -- accepted -- hairy-peduncled beaked-rush, mosquito beadsedge, mosquito beaksedge
  Rhynchospora culixa Gale -- not accepted -- Georgia beaksedge
  Rhynchospora curtissii Britton -- accepted -- Curtiss' beaksedge
  Rhynchospora cymosa Elliott -- not accepted
  Rhynchospora cyperoides Mart. -- not accepted
  Rhynchospora debilis Gale -- accepted -- savannah beaksedge
  Rhynchospora decurrens Chapm. -- accepted -- swampforest beaksedge
  Rhynchospora depressirostris M.T. Strong -- accepted
  Rhynchospora distans (Michx.) Vahl -- not accepted
  Rhynchospora divaricata (Ham.) M.T. Strong -- accepted
  Rhynchospora divergens Chapm. ex M.A. Curtis -- accepted -- spreading beaksedge
  Rhynchospora dodecandra Baldwin ex A. Gray -- not accepted
  Rhynchospora drummondiana Steud. -- not accepted
  Rhynchospora earlei Britton -- not accepted
  Rhynchospora edisoniana Britton ex Small -- not accepted
  Rhynchospora elliottii A. Dietr. -- accepted -- Elliott's beaksedge
  Rhynchospora elongata Boeckeler -- not accepted
  Rhynchospora eximia (Nees) Boeckeler -- accepted -- Florida beaksedge, meadow beauty
  Rhynchospora fascicularis (Michx.) Vahl -- accepted -- fascicled beaksedge
  Rhynchospora fascicularis var. distans (Michx.) Chapm. -- not accepted -- fascicled beaksedge
  Rhynchospora fascicularis var. fascicularis (Michx.) Vahl -- not accepted -- fascicled beaksedge
  Rhynchospora fernaldii Gale -- accepted -- Fernald's beaksedge
  Rhynchospora filifolia A. Gray -- accepted -- threadleaf beaksedge
  Rhynchospora filiformis Vahl -- accepted -- bird beaksedge
  Rhynchospora floridensis (Britton) H. Pfeiff. -- accepted -- Florida whitetop
  Rhynchospora fusca (L.) W.T. Aiton -- accepted -- brown beaksedge
  Rhynchospora fuscoides C.B. Clarke -- not accepted
  Rhynchospora galeana Naczi, W. Knapp & Gerry Moore -- accepted
  Rhynchospora gigantea Link -- accepted -- giant beaksedge
  Rhynchospora glauca Vahl -- not accepted
  Rhynchospora globularis (Chapm.) Small -- accepted -- globe beakrush, globe beaksedge
  Rhynchospora globularis var. globularis (Chapm.) Small -- accepted -- globe beaksedge
  Rhynchospora globularis var. pinetorum (Britton & Small) Gale -- accepted -- globe beaksedge
  Rhynchospora globularis var. recognita Gale -- not accepted
  Rhynchospora globularis var. saxicola (Small) Kük. -- accepted -- Stone Mountain beaksedge
  Rhynchospora glomerata (L.) Vahl -- accepted -- clustered beaksedge
  Rhynchospora glomerata var. angusta Gale -- not accepted -- clustered beaksedge
  Rhynchospora glomerata var. capitellata (Michx.) Kük. -- not accepted
  Rhynchospora glomerata var. glomerata (L.) Vahl -- not accepted -- clustered beaksedge
  Rhynchospora glomerata var. leptocarpa Chapm. ex Britton -- not accepted
  Rhynchospora glomerata var. minor Britton -- not accepted
  Rhynchospora glomerata var. paniculata Chapm. -- not accepted
  Rhynchospora gracilenta A. Gray -- accepted -- slender beaksedge
  Rhynchospora grayi Kunth -- accepted -- Gray's beaksedge
  Rhynchospora harperi Small -- accepted -- Harper's beaksedge
  Rhynchospora harveyi W. Boott -- accepted -- Harvey's beaksedge
  Rhynchospora harveyi var. culixa (Gale) Kral -- accepted -- Georgia beaksedge
  Rhynchospora harveyi var. harveyi W. Boott -- accepted -- Harvey's beaksedge
  Rhynchospora hispidula (Vahl) Boeckeler -- not accepted -- hairy beaksedge
  Rhynchospora holoschoenoides (Rich.) Herter -- accepted -- fly beaksedge
  Rhynchospora indianolensis Small -- accepted -- Indianola beaksedge
  Rhynchospora inexpansa (Michx.) Vahl -- accepted -- nodding beaksedge
  Rhynchospora intermedia (Chapm.) Britton -- not accepted -- pine barren beaksedge, pinebarren beaksedge
  Rhynchospora intermixta C. Wright -- not accepted
  Rhynchospora inundata (Oakes) Fernald -- accepted -- narrowfruit horned beaksedge
  Rhynchospora jamaicensis Britton -- accepted -- Jamaican beaksedge
  Rhynchospora knieskernii J. Carey -- accepted -- Knieskern's beaked-rush, Knieskern's beaksedge
  Rhynchospora kunthii Nees ex Kunth -- accepted -- Kunth's beaksedge
  Rhynchospora latifolia (Baldwin ex Elliott) W.W. Thomas -- accepted -- sandswamp whitetop
  Rhynchospora lavarum Gaudich. -- not accepted
  Rhynchospora leptocarpa (Chapm. ex Britton) Small -- not accepted -- slender-fruit beaksedge
  Rhynchospora lindeniana Griseb. -- accepted -- Bahama beaksedge
  Rhynchospora lindeniana var. bahamensis (Britton) Gale -- accepted -- Bahama beaksedge
  Rhynchospora lindeniana var. lindeniana Griseb. -- accepted -- Linden beaksedge
  Rhynchospora longiflora C. Presl -- accepted -- longleaf beaksedge
  Rhynchospora luquillensis Britton -- not accepted
  Rhynchospora macra (C.B. Clarke ex Britton) Small -- accepted -- large beaksedge
  Rhynchospora macrostachya Torr. ex A. Gray -- accepted -- tall horned beaksedge
  Rhynchospora macrostachya var. colpophila Fernald & Gale -- not accepted -- tall horned beaksedge
  Rhynchospora macrostachya var. macrostachya Torr. ex A. Gray -- not accepted -- tall horned beaksedge
  Rhynchospora marisculus Nees ex Lindl. & Nees -- accepted -- Caribbean beaksedge
  Rhynchospora megalocarpa A. Gray -- accepted -- sandyfield beaksedge
  Rhynchospora megaplumosa E.L. Bridges & Orzell -- accepted -- Manatee beaksedge
  Rhynchospora micrantha Vahl -- not accepted -- tropical beaksedge
  Rhynchospora microcarpa Baldwin ex A. Gray -- accepted -- southern beaksedge
  Rhynchospora microcephala (Britton) Britton -- accepted -- smallhead beaksedge
  Rhynchospora miliacea (Lam.) A. Gray -- accepted -- millet beaksedge
  Rhynchospora mixta Britton -- accepted -- mingled beaksedge
  Rhynchospora nervosa (Vahl) Boeckeler -- accepted -- yerba de estrella
  Rhynchospora nervosa ssp. ciliata (Vahl) T. Koyama -- accepted -- yerba de estrella
  Rhynchospora nitens (Vahl) A. Gray -- accepted -- shortbeak beaksedge
  Rhynchospora nivea Boeckeler -- accepted -- showy whitetop
  Rhynchospora obliterata Gale -- not accepted
  Rhynchospora odorata C. Wright ex Griseb. -- accepted -- fragrant beaksedge
  Rhynchospora oligantha A. Gray -- accepted -- featherbristle beaksedge
  Rhynchospora oligantha var. breviseta Gale -- not accepted
  Rhynchospora pallida M.A. Curtis -- accepted -- pale beaksedge
  Rhynchospora patula A. Gray -- not accepted
  Rhynchospora perplexa Britton -- accepted -- pineland beaksedge
  Rhynchospora perplexa var. perplexa Britton -- not accepted -- pineland beaksedge
  Rhynchospora perplexa var. virginiana Fernald -- not accepted -- Virginia beaksedge
  Rhynchospora pineticola C.B. Clarke -- accepted -- pine barren beaksedge
  Rhynchospora pinetorum Britton & Small -- not accepted
  Rhynchospora plankii Britton -- not accepted
  Rhynchospora pleiantha (Kük.) Gale -- accepted -- coastal beaksedge
  Rhynchospora plumosa Elliott -- accepted -- plumed beaksedge
  Rhynchospora podosperma C. Wright -- not accepted -- bird beaksedge
  Rhynchospora polyphylla Vahl -- accepted -- leafy beaksedge
  Rhynchospora prolifera Small -- not accepted
  Rhynchospora punctata Elliott -- accepted -- dotted beaksedge
  Rhynchospora pusilla Chapm. ex M.A. Curtis -- accepted -- fairy beaksedge
  Rhynchospora pusilla (Sw.) Griseb., non Chapm. ex M.A. Curtis -- not accepted -- fairy beaksedge
  Rhynchospora racemosa C. Wright -- accepted -- racemed beaksedge
  Rhynchospora radicans (Schltdl. & Cham.) H. Pfeiff. -- accepted -- tropical whitetop
  Rhynchospora radicans ssp. microcephala (Bertero ex Spreng.) W.W. Thomas -- accepted -- tropical whitetop
  Rhynchospora rappiana Small -- not accepted
  Rhynchospora rariflora (Michx.) Elliott -- accepted -- fewflower beaksedge
  Rhynchospora recognita (Gale) Kral -- accepted -- globe beaksedge
  Rhynchospora rubra Domin -- accepted -- rhynchospora
  Rhynchospora rufa (Nees) Boeckeler -- not accepted -- red beaksedge
  Rhynchospora rugosa (Vahl) Gale -- accepted -- claybank beaksedge
  Rhynchospora rugosa ssp. lavarum (Gaudich.) T. Koyama -- accepted -- claybank beaksedge
  Rhynchospora rugosa ssp. rugosa (Vahl) Gale -- accepted -- claybank beaksedge
  Rhynchospora saxicola Small -- not accepted -- Stone Mountain beaksedge
  Rhynchospora schoenoides (Elliott) Alph. Wood -- not accepted
  Rhynchospora scirpoides (Torr.) A. Gray -- accepted -- longbeak beaksedge
  Rhynchospora sclerioides Hook. & Arn. -- accepted -- Hawai'i beaksedge
  Rhynchospora scutellata Griseb. -- accepted -- Indianola beaksedge
  Rhynchospora semiplumosa A. Gray -- not accepted
  Rhynchospora setacea (P.J. Bergius) Boeckeler -- not accepted
  Rhynchospora smallii Britton -- not accepted
  Rhynchospora sola Gale -- accepted -- Cuban beaksedge
  Rhynchospora solitaria R.M. Harper -- accepted -- onespike beaksedge
  Rhynchospora spiciformis Hillebr. -- not accepted
  Rhynchospora stellata (Lam.) Griseb. -- not accepted
  Rhynchospora stenophylla Chapm. -- accepted -- coastal plain beaksedge, coastalplain beaksedge
  Rhynchospora stipitata Chapm. -- not accepted
  Rhynchospora sulcata Gale -- not accepted -- Dixie beaksedge
  Rhynchospora tenerrima Nees ex Spreng. -- accepted -- soldier beaksedge
  Rhynchospora tenuis Baldwin ex A. Gray -- not accepted -- quill beaksedge
  Rhynchospora tenuis Link -- accepted -- quill beaksedge
  Rhynchospora thornei Kral -- accepted -- Thorne's beaked-rush, Thorne's beaksedge
  Rhynchospora torreyana A. Gray -- accepted -- Torrey's beaksedge
  Rhynchospora tracyi Britton -- accepted -- Tracy's beaksedge
  Rhynchospora trichodes auct. non C.B. Clarke -- not accepted
  Rhynchospora uniflora Boeckeler -- accepted -- oneflower beaksedge
  Rhynchospora velutina (Kunth) Boeckeler -- accepted
  Rhynchospora wrightiana Boeckeler -- accepted -- Wright's beaksedge
  Schoenoplectus (Rchb.) Palla -- accepted -- bulrush, Schoenoplectus, threesquare
  Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve -- accepted -- hardstem bulrush, Schoenoplectus
  Schoenoplectus acutus var. acutus (Muhl. ex Bigelow) Á. Löve & D. Löve -- accepted -- hardstem bulrush, Tule bulrush
  Schoenoplectus acutus var. occidentalis (S. Watson) S.G. Sm. -- accepted -- tule
  Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller -- accepted -- American bulrush, chairmaker's bulrush, Olney bulrush, Schoenoplectus
  Schoenoplectus californicus (C.A. Mey.) Soják -- accepted -- California bulrush
  Schoenoplectus deltarum (Schuyler) Soják -- accepted -- delta bulrush
  Schoenoplectus erectus (Poir.) Palla ex J. Raynal -- accepted -- sharpscale bulrush
  Schoenoplectus erectus ssp. raynalii (Schuyler) Lye -- accepted -- sharpscale bulrush
  Schoenoplectus etuberculatus (Steud.) Soják -- accepted -- Canby's bulrush
  Schoenoplectus fluviatilis (Torr.) M.T. Strong -- not accepted -- river bulrush
  Schoenoplectus glaucus (Lam.) Kartesz -- not accepted -- tuberous bulrush
  Schoenoplectus hallii (A. Gray) S.G. Sm. -- accepted -- Hall's bulrush
  Schoenoplectus heterochaetus (Chase) Soják -- accepted -- pale great bulrush, slender bulrush
  Schoenoplectus juncoides (Roxb.) Palla -- accepted -- rock bulrush
  Schoenoplectus juncoides ssp. purshianus (Fernald) Soják -- not accepted
  Schoenoplectus lacustris (L.) Palla -- accepted -- lakeshore bulrush
  Schoenoplectus lacustris ssp. acutus (Muhl. ex Bigelow) Á. Löve & D. Löve -- not accepted
  Schoenoplectus lacustris ssp. creber (Fernald) Á. Löve & D. Löve -- not accepted
  Schoenoplectus lacustris ssp. tabernaemontani (C.C. Gmel.) Á. Löve & D. Löve -- not accepted
  Schoenoplectus lacustris ssp. validus (Vahl) T. Koyama -- not accepted
  Schoenoplectus litoralis (Schrad.) Palla -- accepted
  Schoenoplectus maritimus (L.) Lye -- not accepted -- cosmopolitan bulrush
  Schoenoplectus mucronatus (L.) Palla -- accepted -- bog bulrush, ricefield bulrush
  Schoenoplectus novae-angliae (Britton) M.T. Strong -- not accepted -- New England bulrush
  Schoenoplectus pungens (Vahl) Palla -- accepted -- common threesquare, Schoenoplectus
  Schoenoplectus pungens var. badius (J. Presl & C. Presl) S.G. Sm. -- accepted -- common threesquare
  Schoenoplectus pungens var. longispicatus (Britton) S.G. Sm. -- accepted -- common threesquare
  Schoenoplectus pungens var. polyphyllus (Boeckeler) Dorn -- not accepted
  Schoenoplectus pungens var. pungens (Vahl) Palla -- accepted -- common threesquare
  Schoenoplectus purshianus (Fernald) M.T. Strong -- accepted -- weakstalk bulrush
  Schoenoplectus purshianus var. purshianus (Fernald) M.T. Strong -- accepted -- weakstalk bulrush
  Schoenoplectus purshianus var. williamsii (Fernald) S.G. Smith -- accepted -- weakstalk bulrush
  Schoenoplectus robustus (Pursh) M.T. Strong -- not accepted -- sturdy bulrush
  Schoenoplectus rubiginosus (Beetle) Soják -- not accepted
  Schoenoplectus saximontanus (Fernald) J. Raynal -- accepted -- Rocky Mountain bulrush
  Schoenoplectus setaceus (L.) Palla -- not accepted
  Schoenoplectus smithii (A. Gray) Soják -- accepted -- Smith's bulrush
  Schoenoplectus smithii var. levisetus (Fernald) S.G. Smith -- accepted -- Smith's bulrush
  Schoenoplectus smithii var. setosus (Fernald) S.G. Smith -- accepted -- Smith's bulrush
  Schoenoplectus smithii var. smithii (A. Gray) Soják -- accepted -- Smith's bulrush
  Schoenoplectus subterminalis (Torr.) Soják -- accepted -- swaying bulrush
  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla -- accepted -- great bulrush, soft-stem bulrush, softstem bulrush
  Schoenoplectus torreyi (Olney) Palla -- accepted -- Torrey's bulrush
  Schoenoplectus triqueter (L.) Palla -- accepted -- streambank bulrush
  Schoenoplectus validus (Vahl) Á. Löve & D. Löve -- not accepted
  Schoenoplectus validus ssp. creber (Fernald) Á. Löve & D. Löve -- not accepted
  Schoenoplectus validus ssp. luxurians (Miq.) Soják -- not accepted
  Schoenoplectus X carinatus (Sm.) Palla -- not accepted -- oblong bulrush
  Schoenoplectus X contortus (Eames) S.G. Sm. -- accepted -- contorted bulrush
  Schoenoplectus X kuekenthalianus (Junge) D.H. Kent -- accepted -- Kuekenthal's bulrush
  Schoenoplectus X oblongatus (T. Koyama) Soják -- not accepted
  Schoenoplectus X oblongus (T. Koyama) Soják -- accepted
  Schoenoplectus X scheuchzeri (Brügger) Palla ex Janchen -- not accepted
  Schoenoplectus X steinmetzii (Fernald) S.G. Sm. -- accepted
  Schoenus L. -- accepted -- bogrush
  Schoenus apogon Roem. & Schult. -- accepted -- smooth bogrush
  Schoenus calostachyus Poir. -- accepted -- bogrush
  Schoenus coloratus L. -- not accepted
  Schoenus fascicularis Michx. -- not accepted
  Schoenus ferrugineus L. -- accepted -- rusty bogrush
  Schoenus miliaceus Lam. -- not accepted
  Schoenus nigricans L. -- accepted -- black bog rush, black bogrush
  Schoenus punctatus R. Br. -- accepted
  Schoenus rariflorus Michx. -- not accepted
  Schoenus rugosus Vahl -- not accepted
  Schoenus tendo Banks & Sol. ex Hook. f. -- accepted -- bogrush
  Scirpodendron Zipp. ex Kurz -- accepted
  Scirpodendron ghaeri (Gaertn.) Merr. -- accepted
  Scirpoides Ség. -- accepted -- bulrush
  Scirpoides holoschoenus (L.) Soják -- accepted -- roundhead bulrush
  Scirpus L. -- accepted -- bulrush, bulrushes
  Scirpus acutus Muhl. ex Bigelow -- not accepted -- hardstem bulrush
  Scirpus acutus var. occidentalis (S. Watson) Beetle -- not accepted
  Scirpus aestivalis Retz. -- not accepted
  Scirpus americanus Pers. -- not accepted
  Scirpus americanus auct. non Pers. -- not accepted
  Scirpus americanus var. longispicatus Britton -- not accepted
  Scirpus americanus var. monophyllus (J. Presl & C. Presl) T. Koyama -- not accepted
  Scirpus americanus var. polyphyllus (Boeckeler) Beetle -- not accepted
  Scirpus ancistrochaetus Schuyler -- accepted -- barbed bristle bulrush, barbedbristle bulrush, northeastern bulrush
  Scirpus annuus All. -- not accepted
  Scirpus atrocinctus Fernald -- accepted -- blackgirdle bulrush
  Scirpus atropurpureus Retz. -- not accepted
  Scirpus atrovirens Willd. -- accepted -- dark-green bulrush, green bulrush
  Scirpus atrovirens var. flaccidifolius Fernald -- not accepted
  Scirpus atrovirens var. georgianus (R.M. Harper) Fernald -- not accepted
  Scirpus atrovirens var. pallidus Britton -- not accepted
  Scirpus autumnalis L. -- not accepted
  Scirpus barbatus Rottb. -- not accepted
  Scirpus bergsonii Schuyler -- not accepted
  Scirpus caespitosus L. -- not accepted
  Scirpus caespitosus var. austriacus (Pall.) Asch. & Graebn. -- not accepted
  Scirpus caespitosus var. callosus Bigelow -- not accepted
  Scirpus caespitosus var. delicatulus Fernald -- not accepted
  Scirpus californicus (C.A. Mey.) Steud. -- not accepted
  Scirpus californicus var. tereticulmis (Steud.) Beetle -- not accepted
  Scirpus capillaris L. -- not accepted
  Scirpus caribaeus Rottb. -- not accepted
  Scirpus carinatus (Hook. & Arn. ex Torr.) A. Gray, non Sm. -- not accepted
  Scirpus carolinianus Lam. -- not accepted
  Scirpus castaneus Michx. -- not accepted
  Scirpus cernuus Vahl -- not accepted -- low bulrush
  Scirpus cernuus ssp. californicus (Torr.) Thorne -- not accepted
  Scirpus cernuus var. californicus (Torr.) Beetle -- not accepted
  Scirpus cespitosus L. -- not accepted
  Scirpus cespitosus var. austriacus (Pall.) Asch. & Graebn. -- not accepted
  Scirpus cespitosus var. callosus Bigelow -- not accepted
  Scirpus cespitosus var. delicatulus Fernald -- not accepted
  Scirpus chilensis Nees & Meyen ex Kunth -- not accepted
  Scirpus ciliatifolius Elliott -- not accepted
  Scirpus clementis M.E. Jones -- not accepted
  Scirpus clintonii A. Gray -- not accepted -- clinton bulrush, scirpe de Clinton
  Scirpus coarctatus Elliott -- not accepted
  Scirpus complanatus Retz. -- not accepted
  Scirpus confervoides Poir. -- not accepted
  Scirpus congdonii Britton -- accepted -- Congdon's bulrush
  Scirpus conglomeratus Kunth -- not accepted
  Scirpus corymbosus L. -- not accepted
  Scirpus criniger A. Gray -- not accepted
  Scirpus cubensis Poepp. & Kunth -- not accepted -- Cuban bulrush
  Scirpus cylindricus (Torr.) Britton -- not accepted
  Scirpus cyperinus (L.) Kunth -- accepted -- bulrush, woolgrass
  Scirpus cyperinus var. brachypodus (Fernald) Gilly -- not accepted
  Scirpus cyperinus var. condensatus Fernald -- not accepted
  Scirpus cyperinus var. eriophorum (Michx.) Kunth -- not accepted
  Scirpus cyperinus var. laxus (A. Gray) Beetle -- not accepted
  Scirpus cyperinus var. pedicellatus (Fernald) Schuyler -- not accepted
  Scirpus cyperinus var. pelius Fernald -- not accepted
  Scirpus cyperinus var. rubricosus (Fernald) Gilly -- not accepted
  Scirpus debilis Pursh, non Lam. -- not accepted
  Scirpus deltarum Schuyler -- not accepted -- delta bulrush
  Scirpus dichotomus L. -- not accepted
  Scirpus diffusus Schuyler -- accepted -- umbrella bulrush
  Scirpus divaricatus Elliott -- accepted -- spreading bulrush
  Scirpus equisetoides Elliott -- not accepted
  Scirpus erectus Poir. -- not accepted -- sharpscale bulrush
  Scirpus eriophorum Michx. -- not accepted
  Scirpus erismaniae Schuyler -- not accepted
  Scirpus etuberculatus (Steud.) Kunze -- not accepted -- Canby's bulrush
  Scirpus expansus Fernald -- accepted -- woodland bulrush
  Scirpus fernaldii E.P. Bicknell -- not accepted
  Scirpus ferrugineus L. -- not accepted
  Scirpus fistulosus Poir., non Forssk. -- not accepted
  Scirpus flaccidifolius (Fernald) Schuyler -- accepted -- reclining bulrush
  Scirpus flavescens Poir. -- not accepted
  Scirpus fluitans L. -- not accepted
  Scirpus fluviatilis (Torr.) A. Gray -- not accepted
  Scirpus fontinalis R.M. Harper -- not accepted
  Scirpus fuirenus T. Koyama -- not accepted
  Scirpus geniculatus L. -- not accepted
  Scirpus georgianus R.M. Harper -- accepted -- Georgia bulrush
  Scirpus glaucus Torr. -- not accepted
  Scirpus glaucus Lam. -- not accepted
  Scirpus hallii A. Gray -- not accepted
  Scirpus hattorianus Makino -- accepted -- mosquito bulrush
  Scirpus heterochaetus Chase -- not accepted -- slender bulrush
  Scirpus holoschoenus L. -- not accepted
  Scirpus hotarui auct. non Ohwi -- not accepted
  Scirpus hudsonianus (Michx.) Fernald -- not accepted
  Scirpus hystrix Thunb. -- not accepted
  Scirpus interstinctus Vahl -- not accepted
  Scirpus juncoides Roxb. -- not accepted
  Scirpus juncoides var. digynus (Boeckeler) T. Koyama -- not accepted
  Scirpus juncoides var. williamsii (Fernald) T. Koyama -- not accepted
  Scirpus kamtschaticus C.A. Mey. -- not accepted
  Scirpus koilolepis (Steud.) Gleason -- not accepted
  Scirpus lacustris auct. non L. -- not accepted
  Scirpus lacustris L. -- not accepted
  Scirpus lacustris ssp. creber (Fernald) T. Koyama -- not accepted
  Scirpus lacustris ssp. glaucus (Rchb.) Hartm. -- not accepted
  Scirpus lacustris ssp. tabernaemontani (C.C. Gmel.) Syme -- not accepted
  Scirpus lacustris ssp. validus (Vahl) T. Koyama -- not accepted
  Scirpus lacustris var. tenuiculmis E. Sheld. -- not accepted
  Scirpus lineatus Michx. -- accepted -- drooping bulrush
  Scirpus lineatus auct. non Michx. -- not accepted -- drooping bulrush
  Scirpus lithospermus L. -- not accepted
  Scirpus litoralis (Phil.) Kuntze -- not accepted -- bulrush
  Scirpus litoralis Schrad. -- not accepted
  Scirpus longii Fernald -- accepted -- Long's bulrush
  Scirpus luzulae auct. non L. -- not accepted
  Scirpus mamillatus H. Lindb. -- not accepted
  Scirpus maritimus L. -- not accepted
  Scirpus maritimus var. agonus (Fernald) Beetle -- not accepted
  Scirpus maritimus var. fernaldii (E.P. Bicknell) Beetle -- not accepted
  Scirpus maritimus var. macrostachyus Michx. -- not accepted
  Scirpus maritimus var. paludosus (A. Nelson) Kük. -- not accepted
  Scirpus maritimus var. tuberosus auct. non (Desf.) Roem. & Schult. -- not accepted
  Scirpus micranthus Vahl -- not accepted
  Scirpus micranthus var. drummondii (Nees) Mohlenbr. -- not accepted
  Scirpus micranthus var. minor (Schrad. ex Roem. & Schult.) B. Boivin -- not accepted
  Scirpus microcarpus J. Presl & C. Presl -- accepted -- panicled bulrush, red-tinge bulrush, smallfruit bulrush
  Scirpus microcarpus var. longispicatus M. Peck -- not accepted
  Scirpus microcarpus var. rubrotinctus (Fernald) M.E. Jones -- not accepted
  Scirpus miliaceus L. -- not accepted
  Scirpus molestus M.C. Johnst. -- not accepted
  Scirpus monophyllus J. Presl & C. Presl -- not accepted
  Scirpus montanus Kunth -- not accepted
  Scirpus mucronatus L. -- not accepted
  Scirpus mutatus L. -- not accepted
  Scirpus nanus Spreng. -- not accepted
  Scirpus nanus var. anachaetus (Torr.) Britton -- not accepted
  Scirpus nevadensis S. Watson -- not accepted -- Nevada bulrush
  Scirpus novae-angliae Britton -- not accepted
  Scirpus obtusus Willd. -- not accepted
  Scirpus occidentalis (S. Watson) Chase -- not accepted
  Scirpus olneyi A. Gray -- not accepted
  Scirpus ovatus Roth -- not accepted
  Scirpus pachystylus C. Wright -- not accepted
  Scirpus pacificus Britton -- not accepted
  Scirpus pallidus (Britton) Fernald -- accepted -- cloaked bulrush, pale bulrush
  Scirpus paludosus A. Nelson -- not accepted
  Scirpus paludosus var. atlanticus Fernald -- not accepted
  Scirpus palustris L. -- not accepted
  Scirpus pauciflorus Lightf. -- not accepted
  Scirpus pedicellatus Fernald -- accepted -- stalked bulrush
  Scirpus pedicellatus var. pullus Fernald -- not accepted
  Scirpus pendulus Muhl. -- accepted -- hanging bulrush, pendulous bulrush, rufous bulrush
  Scirpus planifolius Muhl., non Grimm -- not accepted
  Scirpus polyphyllus Vahl -- accepted -- leafy bulrush
  Scirpus prolifer Rottb. -- not accepted
  Scirpus puberulus Michx. -- not accepted
  Scirpus pumilus Vahl -- not accepted
  Scirpus pumilus ssp. rollandii (Fernald) Raymond -- not accepted -- rolland bulrush, scirpe nain sous-espčce de Rolland
  Scirpus pumilus var. rollandii (Fernald) Beetle -- not accepted
  Scirpus pungens Vahl -- not accepted
  Scirpus pungens ssp. monophyllus (J. Presl & C. Presl) Roy L. Taylor & MacBryde -- not accepted
  Scirpus pungens var. longisetus Benth. & F. Muell. -- not accepted
  Scirpus pungens var. longispicatus (Britton) Roy L. Taylor & MacBryde -- not accepted
  Scirpus pungens var. polyphyllus Boeckeler -- not accepted
  Scirpus purshianus Fernald -- not accepted
  Scirpus quadrangulatus Muhl., non Michx. -- not accepted
  Scirpus quadrangulatus Michx. -- not accepted
  Scirpus quinquangularis Vahl -- not accepted
  Scirpus quinqueflorus Hartmann -- not accepted
  Scirpus raynalii Schuyler -- not accepted
  Scirpus rehmannii Ridl. -- not accepted
  Scirpus retroflexus Poir. -- not accepted
  Scirpus retrofractus L. -- not accepted
  Scirpus robustus Pursh -- not accepted
  Scirpus robustus var. novae-angliae (Britton) Beetle -- not accepted
  Scirpus rockii Kük. -- not accepted
  Scirpus rollandii Fernald -- not accepted
  Scirpus rostellatus Torr. -- not accepted
  Scirpus rubiginosus Beetle -- not accepted
  Scirpus rubricosus Fernald -- not accepted
  Scirpus rubrotinctus Fernald -- not accepted
  Scirpus rufus (Huds.) Schrad. -- not accepted
  Scirpus rufus var. neogaeus Fernald -- not accepted
  Scirpus saximontanus Fernald -- not accepted -- Rocky Mountain bulrush
  Scirpus schaffneri Boeckeler -- not accepted
  Scirpus scheuchzeri Brügger, non Vitman -- not accepted
  Scirpus schoenoides Retz. -- not accepted
  Scirpus scirpoideus (Michx.) T. Koyama -- not accepted
  Scirpus setaceus L. -- not accepted
  Scirpus smithii A. Gray -- not accepted -- scirpe de Smith, smith's bulrush
  Scirpus smithii var. levisetus Fassett -- not accepted
  Scirpus smithii var. setosus Fernald -- not accepted
  Scirpus smithii var. williamsii (Fernald) Beetle -- not accepted
  Scirpus spadiceus auct. non L. -- not accepted
  Scirpus steinmetzii Fernald -- not accepted
  Scirpus stenophyllus Elliott -- not accepted
  Scirpus subterminalis Torr. -- not accepted
  Scirpus subterminalis var. cylindricus (Torr.) T. Koyama -- not accepted
  Scirpus supinus auct. non L. -- not accepted
  Scirpus supinus var. hallii (A. Gray) A. Gray -- not accepted
  Scirpus supinus var. saximontanus (Fernald) T. Koyama -- not accepted
  Scirpus sylvaticus auct. non L. -- not accepted
  Scirpus tabernaemontani C.C. Gmel. -- not accepted
  Scirpus tenuiculmis (E. Sheld.) Soják -- not accepted
  Scirpus torreyi Olney -- not accepted -- scirpe de Torrey, torrey's bulrush
  Scirpus tortilis Link -- not accepted
  Scirpus triqueter L. -- not accepted
  Scirpus tuberculosa Michx. -- not accepted
  Scirpus tuberosus auct. non Desf. -- not accepted -- tuberous bulrush
  Scirpus uniglumis Link -- not accepted
  Scirpus uninodis var. hallii (A. Gray) Beetle -- not accepted
  Scirpus vahlii Lam. -- not accepted
  Scirpus validus Vahl -- not accepted
  Scirpus validus var. creber Fernald -- not accepted
  Scirpus verecundus Fernald -- not accepted
  Scirpus wilkensii Schuyler -- not accepted
  Scirpus wolfii A. Gray -- not accepted
  Scirpus X contortus (Eames) T. Koyama -- not accepted
  Scirpus X kuekenthalianus Junge -- not accepted
  Scirpus X oblongus T. Koyama -- not accepted
  Scirpus X peckii Britton (pro sp.) -- accepted -- Peck's bulrush
  Scirpus X rubiginosus Beetle -- not accepted -- bulrush
  Scirpus X scheuchzeri Brügger, non Vitman -- not accepted
  Scleria P.J. Bergius -- accepted -- nutrush
  Scleria baldwinii (Torr.) Steud. -- accepted -- Baldwin's nutrush
  Scleria biflora Roxb. -- accepted -- nutrush
  Scleria bourgeaui Boeckeler -- accepted -- Bourgeau's nutrush
  Scleria bracteata Cav. -- accepted -- bracted nutrush
  Scleria brittonii Core ex Small -- not accepted
  Scleria canescens Boeckeler -- not accepted
  Scleria caricina Benth. -- not accepted -- nutrush
  Scleria ciliaris Nees -- accepted -- nutrush
  Scleria ciliata Michx. -- accepted -- fringed nutrush
  Scleria ciliata var. ciliata Michx. -- accepted -- fringed nutrush
  Scleria ciliata var. curtissii (Britton) J.W. Kessler -- not accepted
  Scleria ciliata var. elliottii (Chapm.) Fernald -- accepted -- fringed nutrush
  Scleria ciliata var. glabra (Chapm.) Fairey -- accepted -- fringed nutrush
  Scleria costata (Britton) Small -- not accepted
  Scleria cubensis Boeckeler -- not accepted -- Cuban nutrush
  Scleria curtissii Britton -- accepted -- Curtiss' nutrush
  Scleria distans Poir. -- accepted -- riverswamp nutrush
  Scleria doradoensis Britton -- not accepted
  Scleria eggersiana Boeckeler -- accepted -- Eggers' nutrush
  Scleria elliottii Chapm. -- not accepted
  Scleria flaccida Steud. -- not accepted
  Scleria georgiana Core -- accepted -- slenderfruit nutrush
  Scleria gracilis Elliott, non Rich. -- not accepted
  Scleria grisebachii C.B. Clarke -- not accepted
  Scleria havanensis Britton -- accepted -- Havana nutrush
  Scleria hirtella Sw. -- accepted -- riverswamp nutrush
  Scleria interrupta Rich. -- not accepted
  Scleria lacustris C. Wright -- accepted -- lakeshore nutrush
  Scleria laevis Willd. -- accepted -- nutrush
  Scleria laxa R. Br. -- accepted -- nutrush
  Scleria lithosperma (L.) Sw. -- accepted -- Florida Keys nutrush
  Scleria melaleuca Rchb. ex Schltdl. & Cham. -- accepted
  Scleria microcarpa Nees ex Kunth -- accepted -- tropical nutrush
  Scleria minor W. Stone -- accepted -- slender nutrush
  Scleria mitis P.J. Bergius -- accepted -- cortadora
  Scleria mucronata Poir. -- accepted
  Scleria muehlenbergii Steud. -- accepted -- Muehlenberg's nutrush
  Scleria nitida Muhl. ex Willd. -- not accepted
  Scleria novae-hollandiae Boeckeler -- accepted -- nutrush
  Scleria nutans Willd. ex Kunth -- not accepted -- nodding nutrush
  Scleria oligantha Michx. -- accepted -- littlehead nutrush
  Scleria pauciflora Muhl. ex Willd. -- accepted -- fewflower nutrush
  Scleria pauciflora var. caroliniana (Willd.) Alph. Wood -- accepted -- Carolina nutrush
  Scleria pauciflora var. curtissii (Britton) Fairey -- not accepted -- Curtiss' nutrush
  Scleria pauciflora var. glabra Chapm. -- not accepted
  Scleria pauciflora var. kansana Fernald -- not accepted
  Scleria pauciflora var. pauciflora Muhl. ex Willd. -- accepted -- fewflower nutrush
  Scleria polycarpa Boeckeler -- accepted -- nutrush
  Scleria pterota C. Presl ex C.B. Clarke -- not accepted -- cortadora blanca
  Scleria pterota var. melaleuca (Rchb. ex Schltdl. & Cham.) Standl. -- not accepted -- cortadora blanca
  Scleria pterota var. pterota C. Presl ex C.B. Clarke -- not accepted -- cortadora blanca
  Scleria purdiei C.B. Clarke -- accepted -- Purdie's nutrush
  Scleria reticularis Michx. -- accepted -- netted nutrush
  Scleria reticularis var. pubescens Britton -- not accepted
  Scleria reticularis var. pumila Britton -- not accepted
  Scleria reticularis var. reticularis Michx. -- not accepted -- netted nutrush
  Scleria rugosa R. Br. -- accepted -- nutrush
  Scleria scabriuscula Schltdl. -- accepted -- mosquito nutrush
  Scleria scindens Nees -- accepted -- hairy nutrush
  Scleria scrobiculata Nees & Meyen -- accepted -- nutrush
  Scleria secans (L.) Urb. -- accepted -- razor grass
  Scleria setacea auct. non Poir. -- not accepted
  Scleria stevensiana Britton -- not accepted
  Scleria sumatrensis Retz. -- accepted -- nutrush
  Scleria tenella Kunth -- accepted -- fly nutrush
  Scleria testacea Nees -- accepted -- Hawai'i nutrush
  Scleria triglomerata Michx. -- accepted -- whip nutrush
  Scleria triglomerata var. minor Britton -- not accepted -- slender nutrush
  Scleria vaginata Steud. -- accepted
  Scleria verticillata Muhl. ex Willd. -- accepted -- low nutrush
  Stenophyllus barbatus (Rottb.) Britton -- not accepted
  Stenophyllus capillaris (L.) Britton -- not accepted
  Stenophyllus carteri Britton ex Small -- not accepted
  Stenophyllus ciliatifolius (Elliott) C. Mohr -- not accepted
  Stenophyllus coarctatus (Elliott) Britton -- not accepted
  Stenophyllus curassavicus Britton -- not accepted
  Stenophyllus portoricensis Britton -- not accepted
  Stenophyllus stenophyllus (Elliott) Britton -- not accepted
  Stenophyllus warei (Torr.) Britton -- not accepted
  Torulinium confertum Desv. ex Ham. -- not accepted
  Torulinium eggersii (Boeckeler) C.B. Clarke -- not accepted
  Torulinium filiforme (Sw.) C.B. Clarke -- not accepted
  Torulinium odoratum (L.) S.S. Hooper -- not accepted
  Torulinium odoratum ssp. auriculatum (Nees & Meyen ex Kunth) T. Koyama -- not accepted
  Trichophorum Pers. -- accepted -- bulrush, club-rush
  Trichophorum alpinum (L.) Pers. -- accepted -- alpine bulrush
  Trichophorum caespitosum (L.) Hartm. -- not accepted -- tufted bulrush
  Trichophorum cespitosum (L.) Hartm. -- accepted -- tufted bulrush
  Trichophorum clementis (M.E. Jones) S.G. Sm. -- accepted -- Yosemite bulrush
  Trichophorum clintonii (A. Gray) S.G. Sm. -- accepted -- Clinton's bulrush
  Trichophorum palustre var. calvum (Torr.) House -- not accepted
  Trichophorum planifolium (Spreng.) Palla -- accepted -- bashful bulrush
  Trichophorum pumilum (Vahl) Schinz & Thell. -- accepted -- Rolland's bulrush
  Trichophorum pumilum ssp. rollandii (Fernald) Roy L. Taylor & MacBryde -- not accepted
  Trichophorum pumilum var. rollandii (Fernald) Hultén -- not accepted
  Trichophorum rollandii (Fernald) Hultén -- not accepted
  Trichophorum verecundum (Fernald) Mohlenbr. -- not accepted
  Trichophyllum palustre var. calvum (A. Gray) House -- not accepted
  Trichophyllum tenue (Willd.) Farw. -- not accepted
  Uncinia Pers. -- accepted -- birdcatching sedge
  Uncinia brevicaulis Thouars -- accepted -- false watermeal
  Uncinia hamata (Sw.) Urb. -- accepted -- birdcatching sedge
  Uncinia uncinata (L. f.) Kük. -- accepted -- Hawai'i birdcatching sedge
  Uncinia uncinata var. uliginosa Skottsb. -- not accepted
  Websteria S.H. Wright -- accepted -- algal bulrush
  Websteria confervoides (Poir.) S.S. Hooper -- accepted -- algal bulrush
  Websteria submersa (C. Wright) Britton -- not accepted
   

A gray bar