Carex × Aestivaliformis

The genus ''Carex'', the sedges, is one of the largest genera of flowering plants, containing around 1800 species, according to a 2004 estimate. All the species (including hybrid species) accepted by ''The Plant List'' are given below: In May 2015, the Global Carex Group argued for a broader circumscription of Carex, proposing the addition of all species currently classified in ''Cymophyllus'' (1 species), ''Kobresia'' (c. 60 species), ''Schoenoxiphium'' (c. 15 species) and ''Uncinia'' (c. 70 species) to those already classified as ''Carex''. (Not all of these have been added below.)

Species

A

*'' Carex × abitibiana'' Lepage
*'' Carex aboriginum'' M.E.Jones
*'' Carex × abortiva'' Holmb.
*'' Carex abrupta'' Mack.
*'' Carex abscondita'' Mack.
*'' Carex acaulis'' d'Urv.
*'' Carex accrescens'' Ohwi – Seoul sedge
*'' Carex acicularis'' Boott
*'' Carex acidicola'' Naczi
*''Carex acocksii'' C.Archer
*''Carex acuta'' L.
*'' Carex × acutangula'' (F.Nyl.) Väre
*'' Carex acutata'' Boott
*''Carex acutiformis'' Ehrh.
*''Carex adelostoma'' V.I.Krecz.
*''Carex adrienii'' E.G.Camus
*''Carex adusta'' Boott
*''Carex aematorrhyncha'' Desv.
*''Carex aequialta'' Kük.
*''Carex × aestivaliformis'' Mack.
*''Carex aestivalis'' M.A.Curtis ''ex'' A.Gray
*''Carex aethiopica'' Schkuhr
*''Carex agglomerata'' C.B.Clarke
*'' Carex aggregata'' Mack.
*'' Carex × akitaensis'' Fujiw.
*'' Carex × akiyamana'' Ohwi
*'' Carex alajica'' Litv.
*'' Carex alata'' Torr.
*''Carex alba'' Scop.
*'' Carex albata'' Boott ''ex'' Franch. – ditch sedge
*'' Carex × albertii'' H.Lév.
*'' Carex albicans'' Willd. ''ex'' Spreng.
*''Carex albida'' L.H.Bailey
*'' Carex albidibasis'' T.Koyama
*'' Carex albolutescens'' Schwein.
*'' Carex albonigra'' Mack.
*'' Carex alboviridis'' C.B.Clarke
*'' Carex albula'' Allan
*'' Carex albursina'' E.Sheld.
*'' Carex algida'' Turcz. ''ex'' V.I.Krecz.
*'' Carex allanii'' Hamlin
*'' Carex alligata'' Boott
*'' Carex alliiformis'' C.B.Clarke
*'' Carex allivescens'' V.I.Krecz.
*'' Carex × allolepis'' Rchb.
*'' Carex × alluvialis'' Figert
*'' Carex alma'' L.H.Bailey
*'' Carex × almii'' Holmb.
*'' Carex alopecoidea'' Tuck.
*'' Carex alopecuroides'' D.Don ''ex'' Tilloch & Taylor
*'' Carex × alsatica'' Zahn
*'' Carex alsophila'' F.Muell.
*'' Carex altaica'' Gorodkov
*'' Carex amgunensis'' F.Schmidt
*'' Carex amicta'' Boott
*''Carex amphibola'' Steud.
*'' Carex amplectens'' Mack.
*''Carex amplifolia'' Boott
*'' Carex andersonii'' Boott
*'' Carex andicola'' G.A.Wheeler
*'' Carex andina'' Phil.
*'' Carex andringitrensis'' Cherm.
*'' Carex angolensis'' Nelmes
*'' Carex angustata'' Boott
*'' Carex angustifructus'' (Kük.) Nelmes
*'' Carex angustinowiczii'' Meinsh. ''ex'' Korsh.
*'' Carex angustispica'' Reznicek & S.González
*'' Carex angustisquama'' Franch.
*'' Carex angustiutricula'' F.T.Wang & Tang ''ex'' L.K.Dai
*'' Carex × aniaiensis'' Fujiw. & Y.Matsuda
*'' Carex anisoneura'' V.I.Krecz.
*'' Carex anisostachys'' Liebm.
*'' Carex annectens'' (E.P.Bicknell) E.P.Bicknell
*'' Carex anningensis'' F.T.Wang & Tang ''ex'' P.C.Li
*'' Carex anomoea'' Hand.-Mazz.
*'' Carex anthoxanthea'' J.Presl & C.Presl
*'' Carex × anticostensis'' (Fernald) Lepage
*''Carex antoniensis'' A.Chev.
*'' Carex aperta'' Boott
*'' Carex aphanolepis'' Franch. & Sav. – nerved-scale sedge
*'' Carex aphylla'' Kunth
*'' Carex aphyllopus'' Kük.
*'' Carex apiahyensis'' Palla
*'' Carex apoiensis'' Akiyama
*'' Carex appalachica'' J.M.Webber & P.W.Ball
*'' Carex appendiculata'' (Trautv. & C.A.Mey.) Kük. – appendicular sedge
*'' Carex applanata'' Thorsen et de Lange
*'' Carex appressa'' R.Br.
*''Carex appropinquata'' Schumach.
*''Carex aquatilis'' Wahlenb.
*'' Carex aquilonalis'' Akiyama
*'' Carex × arakanei'' T.Koyama
*'' Carex arapahoensis'' Clokey
*'' Carex archeri'' Boott
*'' Carex arcta'' Boott
*'' Carex arctata'' Boott
*'' Carex arctiformis'' Mack.
*'' Carex × arctophila'' F.Nyl.
*''Carex arenaria'' L.
*'' Carex arenicola'' F.Schmidt – wet-sand sedge
*'' Carex argentina'' Barros
*'' Carex argunensis'' Turcz. ''ex'' Ledeb.
*'' Carex argyi'' H.Lév. & Vaniot
*'' Carex argyrantha'' Tuck. ''ex'' Boott
*'' Carex aridula'' V.I.Krecz.
*'' Carex arisanensis'' Hayata
*'' Carex aristatisquamata'' Tang & F.T.Wang ''ex'' L.K.Dai
*'' Carex aristulifera'' P.C.Li
*'' Carex arkansana'' (L.H.Bailey) L.H.Bailey
*'' Carex arnellii'' Christ ''ex'' Scheutz – Musan sedge
*'' Carex arnottiana'' Nees ''ex'' Drejer
*'' Carex arsenei'' Kük.
*'' Carex × arthuriana'' C.L.Beckm. & Figert
*'' Carex × aschersonii'' H.Lév.
*'' Carex ascotreta'' C.B. Clarke – long Mokpo sedge
*'' Carex asperifructus'' Kük.
*'' Carex asraoi'' D.M.Verma
*'' Carex assiniboinensis'' W.Boott
*'' Carex asturica'' Boiss.
*'' Carex asynchrona'' Naczi
*''Carex atherodes'' Spreng.
*'' Carex athrostachya'' Olney
*'' Carex atlantica'' L.H.Bailey
*'' Carex atlasica'' (H.Lindb.) Tattou
*'' Carex atractodes'' F.J.Herm.
*'' Carex atrata'' L. – black-spike sedge
*'' Carex atratiformis'' Britton
*'' Carex atrivaginata'' Nelmes
*''Carex atrofusca'' Schkuhr
*'' Carex atrofuscoides'' K.T.Fu
*'' Carex atropicta'' Steud.
*'' Carex atrosquama'' Mack.
*'' Carex atroviridis'' Ohwi
*'' Carex aueri'' Kalela
*'' Carex augustini'' Tuyama
*'' Carex augustinowiczii'' Meinsh. – Augustinowicz's sedge
*''Carex aurea'' Nutt.
*'' Carex aureolensis'' Steud.
*'' Carex × auroniensis'' L.C.Lamb.
*'' Carex austrina'' Mack.
*'' Carex austroafricana'' (Kük.) Raymond
*'' Carex austroalpina'' Bech.
*'' Carex austroamericana'' G.A.Wheeler
*'' Carex austrocaroliniana'' L.H.Bailey
*'' Carex austrokoreensis'' Ohwi
*'' Carex austromexicana'' Reznicek
*'' Carex austro-occidentalis'' F.T.Wang & Tang ''ex'' Y.C.Tang
*'' Carex austrosinensis'' Tang & F.T.Wang ''ex'' S.Y.Liang
*'' Carex austrozhejiangensis'' C.Z.Zheng & X.F.Jin
*'' Carex autumnalis'' Ohwi – Autumnal sand sedge
*'' Carex aztecica'' Mack.
*'' Carex azuayae'' Steyerm.

B

*''Carex baccans'' Nees
*'' Carex backii'' Boott
*'' Carex baileyi'' Britton
*'' Carex baimaensis'' S.W.Su
*'' Carex baiposhanensis'' P.C.Li
*'' Carex × bakkeriana'' D.T.E.Ploeg & Rudolphy
*'' Carex balansae'' Franch.
*'' Carex baldensis'' L.
*'' Carex balfourii'' Kük.
*'' Carex ballsii'' Nelmes
*'' Carex baltzellii'' Chapm.
*'' Carex bambusetorum'' Merr.
*'' Carex banksii'' Boott
*'' Carex baohuashanica'' Tang & F.T.Wang ''ex'' L.K.Dai
*'' Carex barbarae'' Dewey
*'' Carex barbata'' Boott
*'' Carex baronii'' Baker
*'' Carex barrattii'' Torr. ''ex'' Schwein.
*'' Carex basiantha'' Steud.
*'' Carex bathiei'' H.Lév.
*'' Carex bavicola'' Raymond
*''Carex bebbii'' Olney ''ex'' Britton
*'' Carex beckii'' G.A.Wheeler
*'' Carex × beckmanniana'' Figert
*'' Carex × beckmannii'' Keck
*'' Carex bella'' L.H.Bailey
*'' Carex × bengyana'' H.Lév. & L.C.Lamb.
*'' Carex benkei'' Tak.Shimizu
*'' Carex bequaertii'' De Wild.
*'' Carex berggrenii'' Petrie
*'' Carex bermudiana'' Hemsl.
*'' Carex berteroana'' Steud.
*'' Carex berteroniana'' Steud.
*'' Carex bichenoviana'' Boott
*''Carex bicknellii'' Britton & A.Br.
*''Carex bicolor'' Bellardi ''ex'' All.
*'' Carex biegensis'' Cherm.
*''Carex bigelowii'' Torr. ''ex'' Schwein. – Gwanmo sedge
*'' Carex × biharica'' Simonk.
*'' Carex bijiangensis'' S.Yun Liang & S.R.Zhang
*'' Carex bilateralis'' Hayata
*'' Carex biltmoreana'' Mack.
*'' Carex × binderi'' Podp.
*''Carex binervis'' Sm.
*'' Carex bitchuensis'' T.Hoshino & H.Ikeda
*'' Carex blakei'' Nelmes
*''Carex blanda'' Dewey
*'' Carex blepharicarpa'' Franch. – ciliated-fruit sedge
*'' Carex blinii'' H.Lév. & Vaniot
*'' Carex bodinieri'' Franch.
*'' Carex boecheriana'' Á.Löve, D.Löve & Raymond
*'' Carex boelckeiana'' Barros
*'' Carex × boenninghausiana'' Weihe
*'' Carex × bogstadensis'' Kük.
*'' Carex bohemica'' Schreb.
*'' Carex bolanderi'' Olney
*'' Carex × bolina'' Láng
*'' Carex boliviensis'' Van Heurck & Müll.Arg.
*'' Carex bonanzensis'' Britton – yukon sedge
*'' Carex bonariensis'' Desf. ''ex'' Poir.
*'' Carex bonplandii'' Kunth
*'' Carex boottiana'' Hook. & Arn. – coastal rock sedge
*'' Carex borbonica'' Lam.
*'' Carex borealihinganica'' Y.L.Chang & Y.L.Yang
*'' Carex borii'' Nelmes
*'' Carex boryana'' Schkuhr
*'' Carex bostrychostigma'' Maxim. – curled-stigma sedge
*'' Carex brachyanthera'' Ohwi
*'' Carex brachycalama'' Griseb.
*'' Carex brachystachys'' Schrank
*'' Carex bracteosa'' Kunze
*'' Carex bradei'' Gross
*'' Carex brainerdii'' Mack.
*'' Carex brasiliensis'' A.St.-Hil.
*'' Carex brassii'' Nelmes
*'' Carex breviaristata'' K.T.Fu
*'' Carex brevicollis'' DC.
*'' Carex breviculmis'' R.Br. – mountain nerved-fruit sedge
** ''Carex breviculmis'' var. ''fibrillosa'' (Franch. & Sav.) Matsum. & Hayata – fibrillose short-stem sedge
*'' Carex brevicuspis'' C.B.Clarke
*'' Carex brevior'' (Dewey) Mack. ''ex'' Lunell
*'' Carex breviscapa'' C.B.Clarke
*'' Carex breweri'' Boott
*''Carex brizoides'' L.
*''Carex bromoides'' Willd.
*'' Carex brongniartii'' Kunth
*'' Carex brownii'' Tuck. – Brown's sedge
** ''Carex brownii'' subsp. ''transversa'' (Boott) J.Kern – transverse Brown's sedge
*'' Carex brunnea'' Thunb.
*'' Carex brunnescens'' (Pers.) Poir.
*'' Carex brunnipes'' Reznicek
*'' Carex brysonii'' Naczi
*'' Carex buchananii'' Berggr.
*'' Carex bucharica'' Kük.
*'' Carex buekii'' Wimm.
*'' Carex bulbostylis'' Mack.
*'' Carex bullata'' Willd.
*'' Carex burchelliana'' Boeckeler
*'' Carex burttii'' Noltie
*'' Carex bushii'' Mack.
*''Carex buxbaumii'' Wahlenb. – marsh sedge

C

*'' Carex caduca'' Boott
*'' Carex caeligena'' Reznicek
*'' Carex × caesariensis'' Mack.
*'' Carex caespititia'' Nees
*'' Carex calcicola'' Tang & F.T.Wang
*'' Carex calcifugens'' Naczi
*'' Carex calcis'' K.A.Ford
*'' Carex californica'' L.H.Bailey
*'' Carex callista'' Nelmes
*'' Carex callitrichos'' V.I.Krecz.
** ''Carex callitrichos'' var. ''nana'' (H.Lév. & Vaniot) S.Yun Liang, L.K.Dai & Y.C.Tang – low sedge
*'' Carex cambodiensis'' Nelmes
*'' Carex camposii'' Boiss. & Reut.
*'' Carex campylorhina'' V.I.Krecz.
*'' Carex canaliculata'' P.C.Li
*'' Carex canariensis'' Kük.
*'' Carex × candriana'' Kneuck.
*''Carex canescens'' L. – silvery sedge
*'' Carex canina'' Dunn
*'' Carex capillacea'' Boott – tiny sedge
* ''Carex capillacea'' var. ''sachalinensis'' (F.Schmidt) Ohwi – Sakhalin tiny sedge
*''Carex capillaris'' L. – hair-like sedge
*'' Carex capilliculmis'' S.R.Zhang
*'' Carex capilliformis'' Franch.
*'' Carex capitata'' Sol.
*'' Carex capitellata'' Boiss. & Balansa
*'' Carex capricornis'' Meinsh. ''ex'' Maxim. – capricornis sedge – short-hair spring sedge
*'' Carex cardiolepis'' Nees
*'' Carex careyana'' Torr. ''ex'' Dewey
*'' Carex × cariei'' Aubin
*'' Carex caroliniana'' Schwein.
*'' Carex carsei'' Petrie
*''Carex caryophyllea'' Latourr.
** ''Carex caryophyllea'' var. ''microtricha'' (Franch.) Kük.
*'' Carex castanea'' Wahlenb.
*'' Carex castanostachya'' K.Schum. ''ex'' Kük.
*'' Carex catamarcensis'' C.B.Clarke ''ex'' Kük.
*'' Carex cataphyllodes'' Nelmes
*'' Carex cataractae'' R.Br.
*'' Carex catharinensis'' Boeck.
*'' Carex caudata'' (Kük.) Pereda & Laínz
*'' Carex caudispicata'' F.T.Wang & Tang ''ex'' P.C.Li
*'' Carex cavaleriensis'' H.Lév. & Vaniot
*'' Carex caxinensis'' F.J.Herm.
*'' Carex × cayouettei'' A.Bergeron
*'' Carex celebica'' Kük.
*'' Carex × cenantha'' A.E.Kozhevn.
*'' Carex cephaloidea'' (Dewey) Dewey ''ex'' Boott
*'' Carex cephalophora'' Muhl. ''ex'' Willd.
*'' Carex cephalotes'' F.Muell.
*'' Carex cercidascus'' C.B.Clarke
*''Carex cespitosa'' L. – turfy sedge
*'' Carex × cetica'' Rech.
*'' Carex ceylanica'' Boeckeler
*'' Carex chaffanjonii'' E.G.Camus
*'' Carex chalciolepis'' Holm
*'' Carex changmuensis'' Tang & F.T.Wang ''ex'' Y.C.Yang
*'' Carex chaofangii'' C.Z.Zheng & X.F.Jin
*'' Carex chapmanii'' Steud.
*'' Carex chathamica'' Petrie
*'' Carex cheniana'' Tang & F.T.Wang ''ex'' S.Y.Liang
*'' Carex cherokeensis'' Schwein.
*'' Carex chiapensis'' F.J.Herm.
*'' Carex chichijimensis'' Katsuy.
*'' Carex chihuahuensis'' Mack.
*'' Carex chikungana'' L.H.Bailey
*'' Carex chillanensis'' Phil.
*'' Carex chinensis'' Retz.
*'' Carex chinoi'' Ohwi ''ex'' T.Koyama
*'' Carex chiovendae'' Pamp.
*'' Carex chiwuana'' F.T.Wang & Tang ''ex'' P.C.Li
*'' Carex chlorantha'' R.Br.
*'' Carex chlorocephalula'' F.T.Wang & Tang ''ex'' P.C.Li
*'' Carex chloroleuca'' Meinsh.
*'' Carex chlorosaccus'' C.B.Clarke
*'' Carex chorda'' H.Lév. & Vaniot
*'' Carex chordorrhiza'' L.f. – creeping sedge
*'' Carex chosenica'' Ohwi – Korean sedge
*'' Carex chrysolepis'' Franch. & Sav.
*'' Carex chuiana'' F.T.Wang & Tang ''ex'' P.C.Li
*'' Carex chuii'' Nelmes
*'' Carex chungii'' Z.P.Wang
*'' Carex cilicica'' Boiss.
*'' Carex cinerascens'' Kük. – ashgrey sedge
*'' Carex circinnata'' C.A.Mey.
*'' Carex cirrhosa'' Berggr.
*'' Carex cirrhulosa'' Nees
*'' Carex × clausa'' Holmb.
*'' Carex clavata'' Thunb.
*'' Carex clivorum'' Ohwi
*'' Carex cochinchinensis'' Raymond
*'' Carex cochranei'' Reznicek
*'' Carex cockayneana'' Kük.
*'' Carex cognata'' Kunth
*''Carex colchica'' J.Gay
*'' Carex colensoi'' Boott
*'' Carex collifera'' Ohwi
*'' Carex collimitanea'' V.I.Krecz.
*'' Carex collinsii'' Nutt.
*'' Carex collumanthus'' (Steyerm.) L.E.Mora
*'' Carex comans'' Berggr.
*'' Carex commixta'' Steud.
*'' Carex communis'' L.H.Bailey
*''Carex comosa'' Boott
*'' Carex complanata'' Torr. & Hook.
*'' Carex composita'' Boott
*'' Carex concinna'' R.Br.
*'' Carex concinnoides'' Mack.
*'' Carex condensata'' Nees
*'' Carex conferta'' Hochst. ''ex'' A.Rich.
*'' Carex confertospicata'' Boeckeler
*'' Carex congdonii'' L.H.Bailey
*'' Carex congestiflora'' Reznicek & S.González
*'' Carex conica'' Boott – miniature sedge
*'' Carex conjuncta'' Boott
*'' Carex × connectens'' Holmb.
*'' Carex conoidea'' Willd.
*'' Carex conoides'' Kük.
*'' Carex conspecta'' Mack.
*'' Carex conspissata'' V.I.Krecz.
*'' Carex constanceana'' Stacey
*'' Carex continua'' C.B.Clarke
*'' Carex contracta'' F.Muell.
*'' Carex cordillerana'' Saarela & B.A.Ford
*'' Carex cordouei'' H.Lév.
*'' Carex coriacea'' Hamlin
*'' Carex coriogyne'' Nelmes
*'' Carex corrugata'' Fernald
*'' Carex × corstorphinei'' Druce
*'' Carex cortesii'' Liebm.
*'' Carex × costei'' Rouy
*'' Carex coulteri'' Boott ''ex'' Hemsl.
*'' Carex coxiana'' Petrie
*'' Carex cranaocarpa'' Nelmes
*'' Carex crassibasis'' H.Lév. & Vaniot
*'' Carex crassiflora'' Kük.
*''Carex crawei'' Dewey ''ex'' Torr.
*'' Carex crawfordii'' Fernald
*'' Carex crebra'' V.I.Krecz.
*'' Carex crebriflora'' Wiegand
*'' Carex cremnicola'' K.A.Ford
*'' Carex × crepinii'' Torges
*'' Carex cretica'' Gradst. & J.Kern
*'' Carex crinita'' Lam.
*'' Carex × crinitoides'' Lepage
*'' Carex cristatella'' Britton & A.Br.
*'' Carex cruciata'' Wahlenb.
*''Carex cruenta'' Nees
*''Carex crus-corvi'' Shuttlew. ''ex'' Kunze
*''Carex × cryptochlaena'' Holm
*''Carex cryptolepis'' Mack.
*''Carex cryptostachys'' Brongn.
*''Carex × csomadensis'' Simonk.
*''Carex cubensis'' Kük.
*''Carex cuchumatanensis'' Standl. & Steyerm.
*''Carex culmenicola'' Steyerm.
*''Carex cumberlandensis'' Naczi, Kral & Bryson
*''Carex cumulata'' (L.H.Bailey) Mack.
*''Carex cuprina'' (Sándor ''ex'' Heuff.) Nendtv. ''ex'' A.Kern.
*''Carex curaica'' Kunth
*''Carex curatorum'' Stacey
*''Carex curvicollis'' Franch. & Sav.
*''Carex curviculmis'' Reznicek
*''Carex curvula'' All.
*''Carex cusickii'' Mack.
*''Carex cuspidosa'' Dunn
*''Carex cylindrostachys'' Franch.
*''Carex cyprica'' A.M.Molina, Acedo & Llamas
*''Carex cyrtosaccus'' C.B.Clarke

D

*''Carex dabieensis'' S.W.Su
*''Carex dahurica'' Kük.
*''Carex dailingensis'' Y.L.Chou
*''Carex daisenensis'' Nakai
*''Carex dallii'' Kirk
*''Carex daltonii'' Boott
*''Carex damiaoshanensis'' X.F.Jin & C.Z.Zheng
*''Carex × danielis'' H.Lév.
*''Carex darwinii'' Boott
*''Carex dasycarpa'' Muhl.
*''Carex davalliana'' Sm.
*''Carex davidii'' Franch.
*''Carex david-smithii'' Reznicek
*''Carex davisii'' Schwein. & Torr.
*''Carex davyi'' Mack.
*''Carex dayuongensis'' Z.P.Wang
*''Carex × deamii'' F.J.Herm.
*''Carex debeauxii'' H.Lév. & Vaniot
*''Carex debilis'' Michx.
*''Carex decaulescens'' V.I.Krecz.
*''Carex decidua'' Boott
*''Carex deciduisquama'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex declinata'' Boott
*''Carex × decolorans'' Wimm.
*''Carex decomposita'' Muhl.
*''Carex decora'' Boott
*''Carex decurtata'' Cheeseman
*''Carex deflexa'' Hornem.
*''Carex × deinbolliana'' J.Gay
*''Carex delavayi'' Franch.
*''Carex delicata'' C.B.Clarke
*''Carex densa'' (L.H.Bailey) L.H.Bailey
*''Carex densicaespitosa'' L.K.Dai
*''Carex densifimbriata'' Tang & F.T.Wang
*''Carex densinervosa'' Chiov.
*''Carex densipilosa'' C.Z.Zheng & X.F.Jin
*''Carex depauperata'' Curtis ''ex'' Stokes
*''Carex depressa'' Link
*''Carex deqinensis'' L.K.Dai
*''Carex derelicta'' Å tepánková
*''Carex × descendens'' Kük.
*''Carex × deserta'' Merino
*''Carex desponsa'' Boott
*''Carex devia'' Cheeseman
*''Carex deweyana'' Schwein.
*''Carex dianae'' Steud.
*''Carex diandra'' Schrank
*''Carex diastena'' V.I.Krecz.
*''Carex dichroa'' Freyn
*''Carex dickinsii'' Franch. & Sav. – Dickins' sedge
*''Carex dielsiana'' Kük.
*''Carex digitalis'' Willd.
*''Carex digitata'' L.
*''Carex diluta'' M.Bieb.
*''Carex diminuta'' Boeckeler
*''Carex dimorpholepis'' Steud. – dimorphous-spike sedge
*''Carex dioica'' L.
*''Carex diplodon'' Nelmes
*''Carex dipsacea'' Berggr.
*''Carex dispalata'' Boott – curved-utricle sedge
*''Carex disperma'' Dewey – two-seed sedge
*''Carex dissita'' Sol. ''ex'' Boott
*''Carex dissitiflora'' Franch.
*''Carex dissitispicula'' Ohwi
*''Carex distachya'' Desf.
*''Carex distans'' L.
*''Carex distentiformis'' F.J.Herm.
*''Carex disticha'' Huds.
*''Carex distracta'' C.B.Clarke
*''Carex divisa'' Huds.
*''Carex divulsa'' Stokes
*''Carex doenitzii'' Boeckeler
*''Carex doisutepensis'' T.Koyama
*''Carex dolichogyne'' T.Koyama
*''Carex dolichostachya'' Hayata
*''Carex dolomitica'' Heenan & de Lange
*''Carex doniana'' Spreng. – Don's sedge
*''Carex donnell-smithii'' L.H.Bailey
*''Carex douglasii'' Boott
*''Carex drepanorhyncha'' Franch.
*''Carex druceana'' Hamlin
*''Carex drymophila'' Turcz. – forest-live sedge
*''Carex × ducellieri'' Beauverd
*''Carex × duereriana'' Kük.
*''Carex × dufftii'' Hausskn.
*''Carex × dumanii'' Lepage
*''Carex dunniana'' H.Lév.
*''Carex durangensis'' Reznicek & S.González
*''Carex durieui'' Steud. ''ex'' Kunze
*''Carex duriuscula'' C.A.Mey. – needle-leaf sedge
** Carex duriuscula subsp. rigescens, ''Carex duriuscula'' subsp. ''rigescens'' (Franch.) S.Yun Liang & Y.C.Tang – rigescent sedge
*''Carex dusenii'' Kük. ''ex'' Dusén
*''Carex duvaliana'' Franch. & Sav.

E

*''Carex earistata'' F.T.Wang & Y.L.Chang ''ex'' S.Yun Liang
*''Carex ebenea'' Rydb.
*''Carex eburnea'' Boott
*''Carex echinata'' Murray – star sedge
*''Carex echinochloe'' Kunze
*''Carex echinochloiformis'' Y.L.Chang ''ex'' Y.C.Yang
*''Carex echinodes'' (Fernald) P.Rothr., Reznicek & Hipp
*''Carex echinus'' Ohwi
*''Carex ecklonii'' Nees
*''Carex ecostata'' C.B.Clarke
*''Carex ecuadorica'' Kük.
*''Carex edgariae'' Hamlin
*''Carex edwardsiana'' E.L.Bridges & Orzell
*''Carex egena'' H.Lév. & Vaniot
*''Carex egglestonii'' Mack.
*''Carex egorovae'' A.M.Molina, Acedo & Llamas
*''Carex ekmanii'' Kük.
*''Carex × elanescens'' Cif. & Giacom.
*''Carex elata'' All.
*''Carex elatior'' Boeckeler
*''Carex eleusinoides'' Turcz. ''ex'' Kunth – goosegrass sedge
*''Carex elingamita'' Hamlin
*''Carex × elisabethae'' J.Andrés & al.
*''Carex elliottii'' Schwein. & Torr.
*''Carex elongata'' L.
*''Carex eluta'' Nelmes
*''Carex elynoides'' Holm
*''Carex × elytroides'' Fr.
*''Carex emirnensis'' Baker
*''Carex × emmae'' L.Gross
*''Carex emoryi'' Dewey
*''Carex endlichii'' Kük.
*''Carex enervis'' C.A.Mey.
*''Carex engelmannii'' L.H.Bailey
*''Carex enneastachya'' C.B.Clarke
*''Carex enokii'' A.M.Molina, Acedo & Llamas
*''Carex ensifolia'' Turcz. ''ex'' Besser
*''Carex enysii'' Petrie
*''Carex erawinensis'' Korotky
*''Carex erebus'' K.A.Ford
*''Carex ereica'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex eremitica'' Paine
*''Carex eremopyroides'' V.I.Krecz.
*''Carex eremostachya'' S.T.Blake
*''Carex ericetorum'' Pollich
*''Carex eriocarpa'' Hausskn. & Kük.
*''Carex erythrobasis'' H.Lév. & Vaniot – red-based leaf sedge
*''Carex erythrorrhiza'' Boeckeler
*''Carex esquiroliana'' H.Lév.
*''Carex esquirolii'' H.Lév. & Vaniot
*''Carex euprepes'' Nelmes
*''Carex euryphylla'' Cherm.
*''Carex evadens'' S.González & Reznicek
*''Carex × evoluta'' Hartm.
*''Carex excelsa'' Poepp. ''ex'' Kunth
*''Carex exilis'' Dewey
*''Carex × exsalina'' Lepage
*''Carex exsiccata'' L.H.Bailey
*''Carex extensa'' Gooden.

F

*''Carex faberiana'' Loes.
*''Carex fascicularis'' Boott
*''Carex fastigiata'' Franch.
*''Carex × favratii'' Christ
*''Carex feanii'' F.Br.
*''Carex fecunda'' Steud.
*''Carex feddeana'' H.Pfeiff.
*''Carex fedia'' Nees
*''Carex × felixii'' L.C.Lamb.
*''Carex fenghuangshanica'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex × ferdinandi-sauteri'' Asch. & Graebn.
*''Carex fernandezensis'' Mack. ''ex'' G.A.Wheeler
*''Carex ferruginea'' Scop.
*''Carex festivelloides'' Reznicek
*''Carex festucacea'' Schkuhr ''ex'' Willd.
*''Carex feta'' L.H.Bailey
*''Carex × figertii'' Asch. & Graebn.
*''Carex filamentosa'' Petrie
*''Carex filicina'' Nees
*''Carex filifolia'' Nutt.
*''Carex filiformis'' L.
*''Carex filipedunculata'' S.W.Su
*''Carex filipes'' Franch. & Sav. – fishing-rod-like sedge – papillose sedge
** Carex filipes var. oligostachys, ''Carex filipes'' var. ''oligostachys'' Kük.
*''Carex × filkukae'' Podp.
*''Carex fimbriata'' Schkuhr
*''Carex finitima'' Boott
*''Carex firma'' Host
*''Carex firmicaulis'' Kalela
*''Carex × firmior'' (Norman) Holmb.
*''Carex fischeri'' K.Schum.
*''Carex fissa'' Mack.
*''Carex fissuricola'' Mack.
*''Carex flabellata'' H.Lév. & Vaniot – flabellate sedge
*''Carex flacca'' Schreb.
*''Carex flaccosperma'' Dewey
*''Carex flagellifera'' Colenso
*''Carex flava'' L.
*''Carex × flavicans'' (F.Nyl.) F.Nyl.
*''Carex flaviformis'' Nelmes
*''Carex flavocuspis'' Franch. & Sav.
*''Carex flexirostris'' Reznicek
*''Carex flexuosa'' Muhl. ex Willd.
*''Carex floridana'' Schwein.
*''Carex fluviatilis'' Boott
*''Carex foenea'' Willd.
*''Carex foetida'' All.
*''Carex fokienensis'' Dunn
*''Carex foliosissima'' F.Schmidt
*''Carex folliculata'' L.
*''Carex foraminata'' C.B.Clarke
*''Carex foraminatiformis'' Y.C.Tang & S.Yun Liang
*''Carex forficula'' Franch. & Sav. – scissors-like sedge
*''Carex formosa'' Dewey
*''Carex forrestii'' Kük.
*''Carex forsteri'' Wahlenb.
*''Carex fossa'' G.A.Wheeler
*''Carex fracta'' Mack.
*''Carex fragilis'' Boott
*''Carex × fragosoana'' Pau
*''Carex frankii'' Kunth
*''Carex fretalis'' Hamlin
*''Carex × fridtzii'' Holmb.
*''Carex × friesii'' Blytt
*''Carex frigida'' All.
*''Carex fritschii'' Waisb.
*''Carex fructus'' Reznicek
*''Carex fucata'' Boott ''ex'' C.B.Clarke
*''Carex fuliginosa'' Schkuhr – short-leaf sedge
*''Carex fulta'' Franch.
*''Carex × fulva'' Gooden.
*''Carex fulvorubescens'' Hayata
*''Carex funhuangshanica'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex funingensis'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex furcata'' Boott ''ex'' C.B. Clarke
*''Carex furva'' Webb
*''Carex fusanensis'' Ohwi – black-tiny sedge
*''Carex fuscolutea'' Boeckeler
*''Carex fuscula'' d'Urv.
*''Carex fusiformis'' Nees
*''Carex × fussii'' Simonk.

G

*''Carex gandakiensis'' Katsuy.
*''Carex gaoligongshanensis'' P.C. Li
*''Carex garberi'' Fernald
*''Carex gaudichaudiana'' Kunth
*''Carex × gaudiniana'' Guthnick
*''Carex gayana'' Desv.
*''Carex gemella'' Hochst. ''ex'' Steud.
*''Carex geminata'' Schkuhr
*''Carex genkaiensis'' Ohwi – Mokpo sedge
*''Carex gentilis'' Franch.
*''Carex geophila'' Mack.
*''Carex × gerhardtii'' Figert
*''Carex geyeri'' Boott
*''Carex gholsonii'' Naczi & Cochrane
*''Carex gibba'' Wahlenb. – gibbous sedge
*''Carex gibbsiae'' Rendle
*''Carex gibertii'' G.A.Wheeler
*''Carex gifuensis'' Franch.
*''Carex gigantea'' Rudge
*''Carex × ginsiensis'' Waisb.
*''Carex giraldiana'' Kük.
*''Carex giraudiasii'' H.Lév.
*''Carex glabrescens'' (Kük.) Ohwi – glabrate sedge, hairy forest-live sedge
*''Carex glacialis'' Mack.
*''Carex glareosa'' Schkuhr ''ex'' Wahlenb.
*''Carex glaucescens'' Elliott
*''Carex glauciformis'' Meinsh. – pseudo-glaucous sedge
*''Carex glaucodea'' Tuck. ''ex'' Olney
*''Carex globistylosa'' P.C.Li
*''Carex globosa'' Boott
*''Carex globularis'' L. – globular-spike sedge
*''Carex globulosa'' Phulphong & D.A.Simpson
*''Carex glomerabilis'' V.I.Krecz.
*''Carex glossostigma'' Hand.-Mazz.
*''Carex gmelinii'' Hook. & Arn. – Gmelin's sedge
*''Carex godfreyi'' Naczi
*''Carex goligongshanensis'' P.C.Li
*''Carex gonggaensis'' P.C.Li
*''Carex gongshanensis'' Tang & F.T.Wang ''ex'' Y.C.Yang
*''Carex gonochorica'' Cherm.
*''Carex goodenoughii'' Gay
*''Carex gotoi'' Ohwi – two-toothed-beak sedge
*''Carex goyenii'' Petrie
*''Carex gracilenta'' Boott ''ex'' Boeckeler
*''Carex gracilescens'' Steud.
*''Carex graciliflora'' Dunn
*''Carex gracilior'' Mack.
*''Carex gracilispica'' Hayata
*''Carex gracillima'' Schwein.
*''Carex graeffeana'' Boeckeler
*''Carex grallatoria'' Maxim.
*''Carex graminiculmis'' T.Koyama
*''Carex graminifolia'' Cherm.
*''Carex grandiligulata'' Kük.
*''Carex granifera'' Dunn
*''Carex × grantii'' A.Benn.
*''Carex granularis'' Muhl. ''ex'' Willd.
*''Carex gravida'' L.H.Bailey
*''Carex grayi'' J.Carey
*''Carex griersonii'' Noltie
*''Carex grioletii'' Roem. ''ex'' Schkuhr
*''Carex grisea'' Wahlenb.
*''Carex × grossii'' Fiek
*''Carex guatemalensis'' F.J.Herm.
*''Carex guffroyi'' H.Lév. & Perrier
*''Carex gunniana'' Boott
*''Carex gynaecandra'' H.Pfeiff.
*''Carex gynandra'' Schwein.
*''Carex gynocrates'' Wormsk.
*''Carex gynodynama'' Olney

H

*''Carex hachijoensis'' Akiyama
*''Carex × haematolepis'' Drejer
*''Carex haematorrhyncha'' Ohwi & T.Koyama
*''Carex haematosaccus'' C.B.Clarke
*''Carex haematostoma'' Nees
*''Carex × hageri'' E.Baumann
*''Carex hakkodensis'' Franch.
*''Carex hakonemontana'' Katsuy.
*''Carex hakonensis'' Franch. & Sav. – small-needle sedge
*''Carex halleriana'' Asso
*''Carex halliana'' L.H.Bailey
*''Carex hallii'' Olney
*''Carex hanamninhensis'' K.K.Nguyen
*''Carex hancockiana'' Maxim. – Hancock's sedge
*''Carex hanensis'' Dunn
*''Carex hangtongensis'' H.Lév. & Vaniot
*''Carex hangzhouensis'' C.Z.Zheng, X.F.Jin & B.Y.Ding
*''Carex × hanseniana'' Junge
*''Carex harfordii'' Mack.
*''Carex harlandii'' Boott
*''Carex harrysmithii'' Kük.
*''Carex × hartii'' Dewey
*''Carex hartmanii'' Cajander
*''Carex hashimotoi'' Ohwi
*''Carex hassei'' L.H.Bailey
*''Carex hassiana'' Loes.
*''Carex hastata'' Kük.
*''Carex hatuyenensis'' K.K.Nguyen
*''Carex haydeniana'' Olney
*''Carex haydenii'' Dewey
*''Carex hebecarpa'' C.A.Mey.
*''Carex hebes'' Nelmes
*''Carex hebetata'' Boott
*''Carex hectori'' Petrie
*''Carex heleonastes'' Ehrh. ''ex'' L.f.
*''Carex helferi'' Boeckeler
*''Carex helingeeriensis'' L.Q. Zhao & J. Yang
*''Carex helleri'' Mack.
*''Carex helodes'' Link
*''Carex × helvola'' Blytt
*''Carex hemineuros'' T.Koyama
*''Carex hendersonii'' L.H.Bailey
*''Carex hermannii'' Cochrane
*''Carex herteri'' G.A.Wheeler
*''Carex heshuonensis'' S.Yun Liang
*''Carex heterodoxa'' Cherm.
*''Carex heterolepis'' Bunge – different-scale sedge
*''Carex heteroneura'' S.Watson
*''Carex × heterophyta'' Holmb.
*''Carex heterostachya'' Bunge – different-spike sedge
*''Carex heudesii'' H.Lév. & Vaniot
*''Carex hexinensis'' S.Yun Liang & Y.Z.Huang
*''Carex hezhouensis'' H.Wang & S.N.Wang
*''Carex × hibernica'' A.Benn.
*''Carex hieronymi'' Boeckeler
*''Carex hilairei'' Boott
*''Carex hilaireioides'' C.B.Clarke ''ex'' Kük.
*''Carex hildebrandtiana'' Boeckeler
*''Carex himalaica'' T.Koyama
*''Carex hinnulea'' C.B.Clarke
*''Carex hirsutella'' Mack.
*''Carex hirta'' L.
*''Carex hirtelloides'' (Kük.) F.T.Wang & Tang ''ex'' P.C.Li
*''Carex hirticaulis'' P.C.Li
*''Carex hirtifolia'' Mack.
*''Carex hirtigluma'' C.B.Clarke
*''Carex hirtissima'' W.Boott
*''Carex hirtiutriculata'' L.K.Dai
*''Carex hispida'' Willd. ''ex'' Schkuhr
*''Carex hitchcockiana'' Dewey
*''Carex hoatiensis'' H.Lév.
*''Carex hochstetteriana'' J.Gay ''ex'' Seub.
*''Carex holostoma'' Drejer
*''Carex holotricha'' Ohwi – woolly-scale sedge
*''Carex hondoensis'' Ohwi – Hondo sedge
*''Carex hongnoensis'' H.Lév.
*''Carex hongyuanensis'' Y.C.Tang & S.Yun Liang
*''Carex hoodii'' Boott
*''Carex hookeri'' Kunth
*''Carex hookeriana'' Dewey
*''Carex hoozanensis'' Hayata
*''Carex hopeiensis'' F.T.Wang & Tang
*''Carex hordeistichos'' Vill.
*''Carex hormathodes'' Fernald
*''Carex horsfieldii'' Boott
*''Carex hostiana'' DC.
*''Carex hotaizanensis'' Akiyama
*''Carex houghtoniana'' Torr. ''ex'' Dewey
*''Carex hovarum'' Cherm.
*''Carex huashanica'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex hubbardii'' Nelmes
*''Carex huehueteca'' Standl. & Steyerm.
*''Carex hultenii'' Aspl.
*''Carex humahuacaensis'' G.A.Wheeler
*''Carex humbertiana'' Ohwi – Humbert's sedge
*''Carex humbertii'' Cherm.
*''Carex humboldtiana'' Steud.
*''Carex humida'' Y.L.Chang & Y.L.Yang
*''Carex humilis'' Leyss.
*''Carex humpatensis'' H.E.Hess
*''Carex huolushanensis'' P.C.Li
*''Carex husnotiana'' H.Lév.
*''Carex hwangii'' Matsuda
*''Carex hyalina'' Boott
*''Carex hyalinolepis'' Steud.
*''Carex hymenodon'' Ohwi
*''Carex hymenolepis'' Nees
*''Carex hypandra'' F.Muell.
*''Carex hypaneura'' V.I.Krecz.
*''Carex hypoblephara'' Ohwi & Ryu
*''Carex hypoleucos'' E. Desv.
*''Carex hypolytroides'' Ridl.
*''Carex hypsipedos'' C.B.Clarke
*''Carex hypsobates'' Nelmes
*''Carex hystericina'' Muhl. ''ex'' Willd.

I

*''Carex ichangensis'' C.B.Clarke
*''Carex idahoa'' L.H.Bailey
*''Carex idzuroei'' Franch. & Sav. – small Dickins' sedge
*''Carex iljinii'' V.I.Krecz.
*''Carex illegitima'' Ces.
*''Carex illota'' L.H.Bailey
*''Carex × ilseana'' Ruhmer
*''Carex imandrensis'' Kihlm. ''ex'' Hjelt
*''Carex impexa'' K.A.Ford
*''Carex impressinervia'' Bryson, Kral & Manhart
*''Carex impura'' Ohwi
*''Carex inamii'' Ohwi
*''Carex inanis'' Kunth
*''Carex incisa'' Boott – digitaria-like sedge
*''Carex inclinis'' Boott ''ex'' C.B.Clarke
*''Carex incomitata'' K.R.Thiele
*''Carex incurviformis'' Mack.
*''Carex indica'' L.
*''Carex indiciformis'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex indistincta'' H.Lév. & Vaniot
*''Carex indosinica'' Raymond
*''Carex infirminervia'' Naczi
*''Carex infossa'' Z.P.Wang
*''Carex infuscata'' Nees
*''Carex inopinata'' V.J.Cook
*''Carex inops'' L.H.Bailey
*''Carex insaniae'' Koidz.
*''Carex insignis'' Boott
*''Carex insularis'' Carmich.
*''Carex integra'' Mack.
*''Carex interior'' L.H.Bailey
*''Carex × interjecta'' Waisb.
*''Carex interrupta'' Boeckeler
*''Carex intumescens'' Rudge
*''Carex inversa'' R.Br.
*''Carex inversonervosa'' Nelmes
*''Carex × involuta'' (Bab.) Syme
*''Carex iraqensis'' Sheila Spenser Hooper, S.S.Hooper & Kukkonen
*''Carex ischnogyne'' Gilli
*''Carex ischnostachya'' Steud. – thin-spiculate sedge
*''Carex ivanoviae'' T.V.Egorova
*''Carex ixtapalucensis'' Reznicek
*''Carex iynx'' Nelmes

J

*''Carex jacens'' C.B.Clarke
*''Carex jackiana'' Boott
** Carex jackiana var. macroglossa, ''Carex jackiana'' var. ''macroglossa'' (Franch. &
Sav.) Kük. – big-tongue jack sedge
*''Carex jacutica'' V.I.Krecz.
*''Carex × jaegeri'' F.W.Schultz
*''Carex jaluensis'' Kom. – Amrokgang sedge
*''Carex jamesii'' Schwein.
*''Carex jamesonii'' Boott
*''Carex jankowskii'' Gorodkov
*''Carex japonica'' Thunb. – East Asian sedge
*''Carex jeanpertii'' E.G.Camus
*''Carex jiaodongensis'' Y.M.Zhang & X.D.Chen
*''Carex jinfoshanensis'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex jisaburo-ohwiana'' T.Koyama
*''Carex jizhuangensis'' S.Yun Liang
*''Carex johnstonii'' Boeckeler
*''Carex jonesii'' L.H.Bailey
*''Carex joorii'' L.H.Bailey
*''Carex × josephi-schmittii'' Raymond
*''Carex jubozanensis'' J.Oda & A.Tanaka
*''Carex juncella'' Th. Fries
*''Carex juniperorum'' Catling, Reznicek & Crins
*''Carex × justi-schmidtii'' Junge
*''Carex juvenilis'' C.B.Clarke ''ex'' E.G.Camus

K

*''Carex kabanovii'' V.I.Krecz.
*''Carex kagoshimensis'' Tak.Shimizu
*''Carex kaloides'' Petrie
*''Carex kansuensis'' Nelmes
*''Carex kaoi'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex karisimbiensis'' Cherm.
*''Carex karlongensis'' Kük.
*''Carex karoi'' (Freyn) Freyn
*''Carex kashmirensis'' C.B.Clarke
*''Carex × kattaeana'' Kük.
*''Carex kauaiensis'' R.W.Krauss
*''Carex kelloggii'' W.Boott
*''Carex × kenaica'' Lepage
*''Carex kermadecensis'' Petrie
*''Carex × ketonensis'' Akiyama
*''Carex khoii'' T.V.Egorova & Aver.
*''Carex kiangsuensis'' Kük.
*''Carex killickii'' Nelmes
*''Carex kimurae'' Ohwi & T.Koyama
*''Carex kingii'' (R.Br. ''ex'' Boott) Reznicek
*''Carex kiotensis'' Franch. & Sav.
*''Carex kirganica'' Kom. – seosura sedge, slender-culm thick-nerve sedge
*''Carex kirinensis'' W.Wang & Y.L.Chang
*''Carex kirkii'' Petrie
*''Carex kitaibeliana'' Degen ''ex'' Bech.
*''Carex klamathensis'' B.L.Wilson & Janeway
*''Carex klaphakei'' K.L.Wilson
*''Carex × knieskernii'' Dewey
*''Carex knorringiae'' Kük. ''ex'' Krecz.
*''Carex kobomugi'' Ohwi – Asian sand sedge
*''Carex × kohtsii'' K.Richt.
*''Carex korkischkoae'' A.E.Kozhevn.
*''Carex korshinskyi'' Kom. – Korshinsky's sedge
*''Carex koshewnikowii'' Litv.
*''Carex koyaensis'' J.Oda & Nagam.
*''Carex × krajinae'' Domin
*''Carex kraliana'' Naczi & Bryson
*''Carex krascheninnikovii'' Kom. ''ex'' V.I.Krecz.
*''Carex krascheninnikowii'' Kom. ''ex'' V. Krecz.
*''Carex krausei'' Boeckeler
*''Carex kreczetoviczii'' T.V.Egorova
*''Carex kuchunensis'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex kucyniakii'' Raymond
*''Carex × kuekenthaliana'' Appel & A.Brückn.
*''Carex × kuekenthalii'' Dörfl. ''ex'' Zahn
*''Carex kujuzana'' Ohwi – Jangseong sedge
*''Carex kulingana'' L.H.Bailey
*''Carex kumaonensis'' Kük.
*''Carex kurdica'' Kük. ''ex'' Hand.-Mazz.
*''Carex × kurilensis'' Ohwi
*''Carex kurtziana'' Kük.
*''Carex kwangsiensis'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex kwangtoushanica'' K.T.Fu
*''Carex × kyyhkynenii'' Hiitonen

L

*''Carex lachenalii'' Schkuhr – two-tip sedge
*''Carex lacistoma'' R.Br.
*''Carex × lackowitziana'' Aug.R.Paul
*''Carex lacustris'' Willd.
*''Carex laeta'' Boott
*''Carex laeviconica'' Dewey
*''Carex laeviculmis'' Meinsh.
*''Carex laevigata'' Sm.
*''Carex laevissima'' Nakai – small nerved-fruit sedge
*''Carex laevivaginata'' (Kük.) Mack.
*''Carex lageniformis'' Nelmes
*''Carex × laggeri'' Wimm.
*''Carex lagunensis'' M.E.Jones
*''Carex lainzii'' Luceño, E.Rico & T.Romero
*''Carex lambertiana'' Boott
*''Carex lamprocarpa'' Phil.
*''Carex lamprochlamys'' S.T.Blake
*''Carex lancangensis'' S.Yun Liang
*''Carex lanceolata'' Boott – lanceolate sedge
*''Carex lancifolia'' C.B.Clarke
*''Carex lancisquamata'' L.K.Dai
*''Carex × langeana'' Fernald
*''Carex × langii'' Steud.
*''Carex lankana'' T.Koyama
*''Carex laosensis'' Nelmes
*''Carex lapazensis'' C.B.Clarke
*''Carex lapponica'' O.Lang
*''Carex larensis'' Steyerm.
*''Carex laricetorum'' Y.L.Chou
*''Carex lasiocarpa'' Ehrh. – woolly-fruit sedge
*''Carex lasiolepis'' Franch.
*''Carex latebracteata'' Waterf.
*''Carex lateralis'' Kük.
*''Carex lateriflora'' Phil.
*''Carex laticeps'' C.B.Clarke ''ex'' Franch. – bent-beak sedge
*''Carex latisquamea'' Kom. – woolly-leaf sedge
*''Carex lativena'' S.D.Jones & G.D.Jones
*''Carex × lausii'' Podp.
*''Carex laxa'' Wahlenb. – loosely-spike sedge
*''Carex laxiculmis'' Schwein.
*''Carex laxiflora'' Lam.
*''Carex leavenworthii'' Dewey
*''Carex lebrunii'' H.Lév.
*''Carex ledebouriana'' C.A.Mey. ''ex'' Trevir.
*''Carex leersii'' F.W.Schultz
*''Carex lehmannii'' Drejer – Lehman's sedge
*''Carex leiorhyncha'' C.A.Mey. – mountain cat-tail sedge
*''Carex lemanniana'' Boott
*''Carex lemmonii'' W.Boott
*''Carex lenta'' D.Don – sluggish sedge
*''Carex lenticularis'' Michx.
*''Carex lepida'' Boott
*''Carex leporina'' L.
*''Carex leporinella'' Mack.
*''Carex leptalea'' Wahlenb.
*''Carex × leptoblasta'' Holmb.
*''Carex leptocladus'' C.B.Clarke
*''Carex leptonervia'' (Fernald) Fernald
*''Carex leptopoda'' Mack.
*''Carex leribensis'' Nelmes
*''Carex lessoniana'' Steud.
*''Carex leucantha'' Arn. ''ex'' Boott
*''Carex lianchengensis'' S.Yun Liang & Y.Z.Huang
*''Carex libera'' (Kük.) Hamlin
*''Carex × lidii'' Hadac
*''Carex ligata'' Boott
*''Carex × ligniciensis'' Figert
*''Carex ligulata'' Nees – ligulate sedge
*''Carex × limicola'' H.Gross
*''Carex × limnogena'' Appel
*''Carex limosa'' L. – mud sedge
*''Carex × limosoides'' J.Cay.
*''Carex limprichtiana'' Kük.
*''Carex × limula'' Fr.
*''Carex lindleyana'' Nees
*''Carex lingii'' F.T.Wang & Tang
*''Carex liouana'' F.T.Wang & Tang
*''Carex liparocarpos'' Gaudin
*''Carex liqingii'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex lithophila'' Turcz. – rock-loving sedge
*''Carex litorhyncha'' Franch.
*''Carex litorosa'' L.H.Bailey
*''Carex litvinovii'' Kük.
*''Carex liuii'' T.Koyama & T.I.Chuang
*''Carex livida'' (Wahlenb.) Willd. – livid sedge
*''Carex lobolepis'' F.Muell.
*''Carex lobulirostris'' Drejer
*''Carex loheri'' C.B.Clarke
*''Carex loliacea'' L. – ryegrass sedge
*''Carex lonchocarpa'' Willd. ''ex'' Spreng.
*''Carex longhiensis'' Franch.
*''Carex longibrachiata'' Boeckeler
*''Carex longicaulis'' Boeckeler
*''Carex longicruris'' Nees
*''Carex longiculmis'' Petrie
*''Carex longicuspis'' Boeckeler
*''Carex longii'' Mack.
*''Carex longiligula'' Reznicek & S.González
*''Carex longipes'' D.Don ''ex'' Tilloch & Taylor
*''Carex longirostrata'' C.A.Mey. – long-rostrate sedge
** Carex longirostrata var. pallida, ''Carex longirostrata'' var. ''pallid''a (Kitag.) Ohwi – pallid long-rostrate sedge
*''Carex longispiculata'' Y.C.Yang
*''Carex longissima'' M.E.Jones
*''Carex longpanlaensis'' S.Yun Liang
*''Carex longshengensis'' Y.C.Tang & S.Yun Liang
*''Carex longxishanensis'' S.Yun Liang
*''Carex lophocarpa'' C.B.Clarke
*''Carex × loretii'' Rouy
*''Carex louisianica'' L.H.Bailey
*''Carex lowei'' Bech.
*''Carex lucorum'' Willd.
*''Carex luctuosa'' Franch.
*''Carex × ludibunda'' J.Gay
*''Carex lupuliformis'' Sartwell ''ex'' Dewey
*''Carex lupulina'' Muhl. ''ex'' Willd.
*''Carex lurida'' Wahlenb.
*''Carex luridiformis'' Mack. ''ex'' Reznicek & S.González
*''Carex lushanensis'' Kük.
*''Carex lutea'' Leblond
*''Carex × luteola'' (Rchb.) Sendtn.
*''Carex luzulifolia'' W.Boott
*''Carex luzulina'' Olney
*''Carex lyi'' H.Lév. & Vaniot
*''Carex lyngbyei'' Hornem. – Lyngbye's sedge

M

*''Carex maackii'' Maxim. – Maack's sedge
*''Carex × macilenta'' F.Nyl.
*''Carex mackenziana'' Weath.
*''Carex mackenziei'' V.I.Krecz. – Mackenzie's sedge
*''Carex macloviana'' d'Urv.
*''Carex × macounii'' Dewey
*''Carex macrandrolepis'' H.Lév. & Vaniot – big male-scale sedge
*''Carex macrocephala'' Willd. ''ex'' Spreng.
*''Carex macrochaeta'' C.A.Mey.
*''Carex macrogyna'' Turcz. ''ex'' Steudel
*''Carex macrolepis'' DC.
*''Carex macrophyllidion'' Nelmes
*''Carex macrorrhiza'' Boeckeler
*''Carex macrosandra'' (Franch.) V.I.Krecz.
*''Carex macrosolen'' Steud.
*''Carex macrostigmatica'' Kük.
*''Carex macrostyla'' Lapeyr.
*''Carex macroura'' Meinsh.
*''Carex maculata'' Boott – maculate sedge
*''Carex madagascariensis'' Boeckeler
*''Carex madrensis'' L.H.Bailey
*''Carex magacis'' A.M.Molina, Acedo & Llamas
*''Carex magellanica'' Lam.
*''Carex magnoutriculata'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex mairei'' Coss. & Germ.
*''Carex makinoensis'' Franch. – tufted rock-living sedge
*''Carex makuensis'' P.C.Li
*''Carex malaccensis'' C.B.Clarke
*''Carex malmei'' Kalela
*''Carex malyschevii'' T.V.Egorova
*''Carex manca'' Boott
*''Carex manciformis'' C.B.Clarke ''ex'' Franch.
*''Carex mandoniana'' Boeckeler
*''Carex mandshurica'' Meinsh. – Manchurian sedge
*''Carex manginii'' E.G.Camus
*''Carex manhartii'' Bryson
*''Carex mannii'' E.A.Bruce
*''Carex manongarivensis'' Cherm.
*''Carex maorica'' Hamlin
*''Carex maorshanica'' Y.L.Chou
*''Carex maquensis'' Y.C.Yang
*''Carex marahuacana'' Reznicek
*''Carex marianensis'' Stacey
*''Carex marina'' Dewey
*''Carex mariposana'' L.H.Bailey ''ex'' Mack.
*''Carex maritima'' Gunnerus
*''Carex markgrafii'' Kük.
*''Carex martinii'' H.Lév. & Vaniot
*''Carex martynenkoi'' Zolot.
*''Carex × massonii'' Cay. & Lepage
*''Carex matsumurae'' Franch. – big-wheat sedge
*''Carex maximowiczii'' Miq. – Maximowicz's sedge
*''Carex mayebarana'' Ohwi
*''Carex mckittrickensis'' P.W.Ball
*''Carex mcvaughii'' Reznicek
*''Carex meadii'' Dewey
*''Carex media'' R.Br.
*''Carex mediterranea'' C.B.Clarke ''ex'' Post
*''Carex medwedewii'' Leskov
*''Carex meeboldiana'' Kük.
*''Carex meihsienica'' K.T.Fu
*''Carex meiocarpa'' H.Lév. & Vaniot
*''Carex melanantha'' C.A.Mey.
*''Carex melananthiformis'' Litv.
*''Carex melanocarpa'' Cham. ''ex'' Trautv.
*''Carex melanocephala'' Turcz. ''ex'' Kunth
*''Carex melanorrhyncha'' Nelmes
*''Carex melanostachya'' M.Bieb. ''ex'' Willd.
*''Carex melinacra'' Franch.
*''Carex membranacea'' Hook.
*''Carex × mendica'' Lepage
*''Carex mendocinensis'' Olney ''ex'' Boott
*''Carex merritt-fernaldii'' Mack.
*''Carex mertensii'' Prescott ''ex'' Bong.
*''Carex merxmuelleri'' Podlech
*''Carex mesochorea'' Mack.
*''Carex metallica'' H.Lév. – white-spike sedge
*''Carex meyenii'' Nees
*''Carex meyeriana'' Kunth – Meyer's sedge
*''Carex michauxiana'' Boeckeler
*''Carex michelii'' Host
*''Carex michoacana'' Reznicek, Hipp & S.González
*''Carex micrantha'' Kük. – small-flower sedge
*''Carex microcarpa'' Bertol. ''ex'' Moris
*''Carex microchaeta'' Holm
*''Carex microdonta'' Torr.
*''Carex microglochin'' Wahlenb.
*''Carex micropoda'' C.A.Mey.
*''Carex microptera'' Mack.
*''Carex microrhyncha'' Mack.
*''Carex × microstachya'' Ehrh.
*''Carex × microstyla'' J.Gay ''ex'' Gaudin
*''Carex middendorffii'' F.Schmidt
*''Carex mildbraediana'' Kük.
*''Carex millsii'' Dunn
*''Carex mingrelica'' Kük.
*''Carex minuticulmis'' S.W.Su & S.M.Xu
*''Carex minutiscabra'' Kük. ''ex'' Krecz.
*''Carex minutissima'' Barros
*''Carex minxianensis'' S.Yun Liang
*''Carex minxianica'' Y.C.Yang
*''Carex mira'' Kük. – remarkable sedge
*''Carex × mirata'' Chester Dewey, Dewey
*''Carex misera'' Buckley
*''Carex missouriensis'' P.Rothr. & Reznicek
*''Carex mitchelliana'' M.A.Curtis
*''Carex × mithala'' Callier
*''Carex mitrata'' Franch. – mitra sedge
** Carex mitrata var. aristata, ''Carex mitrata'' var. ''aristata'' Ohwi – aristate mitra sedge
*''Carex miyabei'' Franch.
*''Carex mochomuensis'' Katsuy.
*''Carex modesti'' M.Escudero, Martín-Bravo & Jim.Mejías
*''Carex mokkwaensis'' Akiyama
*''Carex molesta'' Mack.
*''Carex molestiformis'' Reznicek & Rothrock
*''Carex molinae'' Phil.
*''Carex mollicula'' Boott – small mucronate sedge
*''Carex mollissima'' Christ ''ex'' Scheutz – softest sedge
*''Carex monodynama'' (Griseb.) G.A.Wheeler
*''Carex monostachya'' A.Rich.
*''Carex monotropa'' Nelmes
*''Carex montana'' L.
*''Carex montanoaltaica'' Zolot.
*''Carex montis-eeka'' Hillebr.
*''Carex montis-everesti'' Kük.
*''Carex montis-wutaii'' T.Koyama
*''Carex moorei'' G.A.Wheeler
*''Carex morii'' Hayata
*''Carex × moriyoshiensis'' Fujiw. & Y.Matsuda
*''Carex morrowii'' Boott
*''Carex mossii'' Nelmes
*''Carex motuoensis'' Y.C.Yang
*''Carex moupinensis'' Franch.
*''Carex mucronata'' All.
*''Carex mucronatiformis'' Tang & F.T.Wang ''ex'' S.Yun Liang
*''Carex × mucronulata'' Holmb.
*''Carex muehlenbergii'' Willd.
*''Carex muelleri'' Petrie
*''Carex × muelleriana'' F.W.Schultz
*''Carex muliensis'' Hand.-Mazz.
*''Carex multicaulis'' L.H.Bailey
*''Carex multicostata'' Mack.
*''Carex munda'' Boott
*''Carex munipoorensis'' C.B.Clarke
*''Carex munroi'' Boott ''ex'' C.B.Clarke
*''Carex muricata'' L.
*''Carex muriculata'' F.J.Herm.
*''Carex × musashiensis'' Ohwi
*''Carex musei'' Steud.
*''Carex muskingumensis'' Schwein.
*''Carex myosuroides'' Vill.
*''Carex myosurus'' Nees

N

*''Carex nachiana'' Ohwi
*''Carex nairii'' Ghildyal & U.C.Bhattach.
*''Carex nakasimae'' Ohwi
*''Carex nanchuanensis'' K.L.Chu ''ex'' S.Y.Liang
*''Carex nandadeviensis'' Ghildyal, U.C.Bhattach. & Hajra
*''Carex nangtciangensis'' Pamp.
*''Carex nardina'' (Hornem.) Fr.
*''Carex neblinensis'' Reznicek
*''Carex nebrascensis'' Dewey
*''Carex nebularum'' Phil.
*''Carex neesiana'' Endl.
*''Carex negrii'' Chiov.
*''Carex nelmesiana'' Barros
*''Carex nelmesii'' H.E.Hess
*''Carex nelsonii'' Mack.
*''Carex nemostachys'' Steud.
*''Carex nemurensis'' Franch.
*''Carex × neobigelowii'' Lepage
*''Carex neochevalieri'' Kük. ''ex'' A.Chev.
*''Carex neodigyna'' P.C.Li
*''Carex × neofilipendula'' Lepage
*''Carex neofilipes'' Nakai
*''Carex neoguinensis'' C.B.Clarke
*''Carex neohebridensis'' Guillaumin & Kük.
*''Carex neokukenthaliana'' H.Lév. & Vaniot
*''Carex × neomiliaris'' Lepage
*''Carex neopetelotii'' Raymond
*''Carex neopolycephala'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex × neorigida'' Lepage
*''Carex nervata'' Franch. & Sav. – nerved-mitra sedge
*''Carex nervina'' L.H.Bailey
*''Carex neurocarpa'' Maxim. – nerved-fruit sedge
*''Carex neurophora'' Mack.
*''Carex nevadensis'' Boiss. & Reut.
*''Carex × nicoloffii'' Pamp.
*''Carex niederleiniana'' Boeckeler
*''Carex nigerrima'' Nelmes
*''Carex nigra'' (L.) Reichard
*''Carex nigricans'' C.A.Mey.
*''Carex nigromarginata'' Schwein.
*''Carex nikolskensis'' Kom.
*''Carex nitidiutriculata'' L.K.Dai
*''Carex nivalis'' Boott
*''Carex nodaeana'' A.I.Baranov & Skvortsov
*''Carex nodiflora'' Boeckeler
*''Carex nordica'' A.M.Molina, Acedo & Llamas
*''Carex normalis'' Mack.
*''Carex norvegica'' Retz. – Norway sedge
*''Carex notha'' Kunth
*''Carex nova'' L.H.Bailey
*''Carex novae-angliae'' Schwein.
*''Carex novogaliciana'' Reznicek
*''Carex × nubens'' Lepage
*''Carex nubigena'' D.Don ''ex'' Tilloch & Taylor
*''Carex nudata'' W.Boott
*''Carex nugata'' Ohwi

O

*''Carex × oberrodensis'' B.Walln.
*''Carex obispoensis'' Stacey
*''Carex oblanceolata'' T.Koyama
*''Carex obliquicarpa'' X.F.Jin, C.Z.Zheng & B.Y.Ding
*''Carex obliquitruncata'' Y.C.Tang & S.Yun Liang
*''Carex obnupta'' L.H.Bailey
*''Carex obovatosquamata'' F.T.Wang & Y.L.Chang ''ex'' P.C.Li
*''Carex obscura'' Nees
*''Carex obscuriceps'' Kük.
*''Carex obtusata'' Lilj.
*''Carex occidentalis'' L.H.Bailey
*''Carex ochrochlamys'' Ohwi – yellow-mantle sedge
*''Carex ochrosaccus'' (C.B.Clarke) Hamlin
*''Carex oedipostyla'' Duval-Jouve
*''Carex oedorrhampha'' Nelmes
*''Carex × oenensis'' A.Neumann ''ex'' B.Walln.
*''Carex × ohmuelleriana'' O.Lang
*''Carex okamotoi'' Ohwi – creeping narrow-leaf sedge
*''Carex oklahomensis'' Mack.
*''Carex olbiensis'' Jord.
*''Carex oligantha'' Steud.
*''Carex oligocarpa'' Willd.
*''Carex oligocarya'' C.B.Clarke
*''Carex oligosperma'' Michx.
*''Carex oligostachya'' Nees
*''Carex olivacea'' Boott
*''Carex olivieri'' H.Lév.
*''Carex × olneyi'' Boott
*''Carex omeiensis'' Tang
*''Carex omeyica'' Molina Gonz., Acedo & Llamas
*''Carex omiana'' Franch. & Sav. – Suwon sedge
*''Carex omurae'' T.Koyama
*''Carex × oneillii'' Lepage
*''Carex onoei'' Franch. & Sav. – needle sedge
*''Carex opaca'' (F.J.Herm.) P.Rothr. & Reznicek
*''Carex ophiolithica'' Heenan & de Lange
*''Carex ophiopogon'' H.Lév.
*''Carex orbicularinucis'' L.K.Dai
*''Carex orbicularis'' Boott
*''Carex oreocharis'' Holm
*''Carex oreophila'' C.A.Mey.
*''Carex orizabae'' Liebm.
*''Carex ormostachya'' Wiegand
*''Carex ornithopoda'' Willd.
*''Carex oronensis'' Fernald
*''Carex orthostemon'' Hayata
*''Carex oshimensis'' Nakai
*''Carex otaruensis'' Franch.
*''Carex × otayai'' Ohwi
*''Carex otomana'' A.M.Molina, Acedo & Llamas
*''Carex ouachitana'' Kral, Manhart & Bryson
*''Carex ovatispiculata'' F.T.Wang & Y.L.Chang ''ex'' S.Yun Liang
*''Carex ovoidoconica'' Ohwi
*''Carex ownbeyi'' G.A.Wheeler
*''Carex oxyandra'' (Franch. & Sav.) Kudô – hill sedge
*''Carex oxylepis'' Torr. & Hook.
*''Carex ozarkana'' P.Rothr. & Reznicek

P

*''Carex pachygyna'' Franch. & Sav.
*''Carex pachyneura'' Kitag.
*''Carex pachystylis'' J.Gay
*''Carex × paczoskii'' Zapal.
*''Carex paeninsulae'' Naczi, E.L.Bridges & Orzell
*''Carex pairae'' F.W.Schultz
*''Carex paishanensis'' Nakai
*''Carex palawanensis'' Kük.
*''Carex paleacea'' Schreb. ''ex'' Wahlenb.
*''Carex pallescens'' L.
*''Carex pallidula'' Harmaja
*''Carex × paludivagans'' W.H.Drury
*''Carex pamirica'' (O.Fedtsch.) O.Fedtsch. & B.Fedtsch.
*''Carex pandanophylla'' C.B.Clarke
*''Carex panicea'' L.
*''Carex paniculata'' L.
*''Carex panormitana'' Guss.
*''Carex pansa'' L.H.Bailey
*''Carex papillosissima'' Nelmes
*''Carex × paponii'' Muret ''ex'' T.Durand & Pittier
*''Carex papulosa'' Boott
*''Carex paracuraica'' F.T.Wang & Y.L.Chang ''ex'' S.Yun Liang
*''Carex parallela'' (Laest.) Sommerf.
*''Carex parryana'' Dewey
*''Carex parva'' Nees
*''Carex parviflora'' Host
*''Carex parvigluma'' C.B.Clarke
*''Carex patagonica'' Speg.
*''Carex × patuensis'' Lepage
*''Carex pauciflora'' Lightf. – few-flower sedge
*''Carex paucimascula'' H.Lév. & Vaniot
*''Carex paui'' Sennen
*''Carex × paulii'' Asch. & Graebn.
*''Carex paulo-vargasii'' Luceño & Marín
*''Carex paupera'' Nelmes
*''Carex paxii'' Kük. – Pax's sedge
*''Carex paysonis'' Clokey
*''Carex peckii'' Howe
*''Carex pediformis'' C.A.Mey. – wide-leaf low sedge
*''Carex pedunculata'' Muhl. ''ex'' Willd.
*''Carex peiktusanii'' Kom. – Baekdu sedge
*''Carex peliosanthifolia'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex pellita'' Muhl. ''ex'' Willd.
*''Carex pelocarpa'' F.J.Herm.
*''Carex pendula'' Huds.
*''Carex penduliformis'' Cherm.
*''Carex pensylvanica'' Lam.
*''Carex perakensis'' C.B.Clarke
*''Carex percostata'' F.J.Herm.
*''Carex perdentata'' S.D.Jones
*''Carex peregrina'' Link
*''Carex perglobosa'' Mack.
*''Carex pergracilis'' Nelmes
*''Carex perlonga'' Fernald
*''Carex perprava'' C.B.Clarke
*''Carex perraudieriana'' (Kük. ''ex'' Bornm.) Gay ''ex'' Kük.
*''Carex × persalina'' Lepage
*''Carex pertenuis'' L.H.Bailey
*''Carex peruviana'' J.Presl & C.Presl
*''Carex peruvida'' G.A.Wheeler
*''Carex petasata'' Dewey
*''Carex petelotii'' Gross
*''Carex petitiana'' A.Rich.
*''Carex petricosa'' Dewey
*''Carex petriei'' Cheeseman
*''Carex peucophila'' Holm
*''Carex phacota'' Spreng. – lentoid sedge
*''Carex phaeocephala'' Piper
*''Carex phaeodon'' T.Koyama
*''Carex phaeothrix'' Ohwi – brown-spike sedge
*''Carex phalaroides'' Kunth
*''Carex phankei'' K.K.Nguyen
*''Carex phoenicis'' Dunn
*''Carex phragmitoides'' Kük.
*''Carex phyllocaula'' Nelmes
*''Carex phyllocephala'' T.Koyama
*''Carex phyllostachys'' C.A.Mey.
*''Carex × physocarpoides'' Lepage
*''Carex physodes'' M.Bieb.
*''Carex pichinchensis'' Kunth
*''Carex picta'' Steud.
*''Carex pigra'' Naczi
*''Carex pilosa'' Scop. – pilose-leaf sedge
*''Carex × pilosiuscula'' Gobi
*''Carex pilulifera'' L.
*''Carex pinophila'' Reznicek & S.González
*''Carex pisanensis'' T.Koyama
*''Carex pisanoi'' G.A.Wheeler
*''Carex pisiformis'' Boott – thread sedge, Sakhalin mitra sedge, alternate-flower thread sedge
** Carex pisiformis var. sikokiana, ''Carex pisiformis'' var. ''sikokiana'' (Franch. & Sav.) T.Koyama – green thread sedge
*''Carex pityophila'' Mack.
*''Carex planata'' Franch. & Sav.
*''Carex planiculmis'' Kom. – shady mucronate sedge
*''Carex planiscapa'' Chun & F.C.How
*''Carex planispicata'' Naczi
*''Carex planostachys'' Kunze
*''Carex plantaginea'' Lam.
*''Carex platyphylla'' J.Carey
*''Carex platysperma'' Y.L.Chang & Y.L.Yang
*''Carex plectobasis'' V.I.Krecz.
*''Carex pleiandra'' Ohwi
*''Carex pleioneura'' G.A.Wheeler
*''Carex pleiostachys'' C.B.Clarke
*''Carex pleurocaula'' Nelmes
*''Carex × ploettneriana'' Beyer
*''Carex pluriflora'' Hultén
*''Carex poculisquama'' Kük. – bowl-shape-scale sedge
*''Carex podocarpa'' R.Br.
*''Carex podogyna'' Franch. & Sav.
*''Carex poeppigii'' C.B.Clarke ''ex'' G.A.Wheeler
*''Carex poilanei'' Raymond
*''Carex polyantha'' F.Muell.
*''Carex polycephala'' Boott
*''Carex polymascula'' P.C.Li
*''Carex polymorpha'' Muhl.
*''Carex polyschoenoides'' K.T.Fu
*''Carex polystachya'' Sw. ''ex'' Wahlenb.
*''Carex polysticha'' Boeckeler
*''Carex pomiensis'' Y.C.Yang
*''Carex pontica'' Albov
*''Carex popovii'' V.I.Krecz.
*''Carex porrecta'' Reznicek & Camelb.
*''Carex potosina'' Hemsl.
*''Carex praeceptorium'' Mack.
*''Carex praeclara'' Nelmes
*''Carex praecox'' Schreb.
*''Carex praegracilis'' W.Boott
*''Carex × prahliana'' Junge
*''Carex prairea'' Dewey ''ex'' Alph.Wood
*''Carex prasina'' Wahlenb.
*''Carex praticola'' Rydb.
*''Carex preissii'' Nees
*''Carex prescottiana'' Boott
*''Carex preslii'' Steud.
*''Carex pringlei'' L.H.Bailey
*''Carex projecta'' Mack.
*''Carex × prolixa'' Fr.
*''Carex prolongata'' Kük.
*''Carex proposita'' Mack.
*''Carex provotii'' Franch.
*''Carex proxima'' Cherm.
*''Carex pruinosa'' Boott
*''Carex przewalskii'' T.V.Egorova
*''Carex pseudoaperta'' Boeckeler ''ex'' Kük.
*''Carex × pseudoaxillaris'' K.Richt.
*''Carex pseudobicolor'' Boeckeler
*''Carex pseudobrizoides'' Clavaud
*''Carex pseudochinensis'' H.Lév. & Vaniot – false Chinese sedge
*''Carex pseudocuraica'' F.Schmidt – creeper-like sedge
*''Carex pseudocyperus'' L.
*''Carex pseudodahurica'' A.P.Khokhr.
*''Carex pseudodispalata'' K.T.Fu
*''Carex pseudofoetida'' Kük. ''ex'' Ostenf.
*''Carex × pseudohelvola'' Kihlm.
*''Carex pseudohumilis'' F.T.Wang & Y.L.Chang ''ex'' P.C.Li
*''Carex pseudohypochlora'' Y.L.Chang & Y.L.Yang
*''Carex pseudolaticeps'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex pseudoligulata'' L.K.Dai
*''Carex pseudololiacea'' F.Schmidt
*''Carex pseudomacloviana'' G.A.Wheeler
*''Carex × pseudomairei'' E.G.Camus
*''Carex pseudophyllocephala'' L.K.Dai
*''Carex pseudosadoensis'' Akiyama
*''Carex pseudospachiana'' H.Lév. & Vaniot
*''Carex pseudosphaerogyna'' Nelmes
*''Carex pseudosupina'' Y.C.Tang ''ex'' L.K.Dai
*''Carex pseudotristachya'' X.F.Jin & C.Z.Zheng
*''Carex × pseudovulpina'' K.Richt.
*''Carex psilocarpa'' Steud.
*''Carex psychrophila'' Nees
*''Carex pterocarpa'' Petrie
*''Carex pterocaulos'' Nelmes
*''Carex pubigluma'' Reznicek
*''Carex pudica'' Honda
*''Carex pulchra'' Boott
*''Carex pulchrifolia'' A.E.Kozhevn.
*''Carex pulicaris'' L.
*''Carex pumila'' Thunb. – dwarf sand sedge
*''Carex punctata'' Gaudin
*''Carex purdiei'' Boott
*''Carex purplevaginalis'' Q.S.Wang
*''Carex purpureosquamata'' L.K.Dai
*''Carex purpureotincta'' Ohwi
*''Carex purpureovagina'' F.T.Wang & Y.L.Chang ''ex'' S.Yun Liang
*''Carex purpureovaginata'' Boeckeler
*''Carex purpurifera'' Mack.
*''Carex × putjatini'' Kom.
*''Carex putuoensis'' S.Yun Liang
*''Carex pycnostachys'' Kar. & Kir.
*''Carex pygmaea'' Boeckeler
*''Carex pyramidalis'' Kük.
*''Carex pyrenaica'' Wahlenb.

Q

*''Carex qingdaoensis'' F.Z.Li & S.J.Fan
*''Carex qinghaiensis'' Y.C.Yang
*''Carex qingliangensis'' D.M.Weng, H.W.Zhang & S.F.Xu
*''Carex qingyangensis'' S.W.Su & S.M.Xu
*''Carex qiyunensis'' S.W.Su & S.M.Xu
*''Carex quadriflora'' (Kük.) Ohwi – four-flower sedge
*''Carex × quebecensis'' Lepage
*''Carex queretarensis'' Reznicek & S.González
*''Carex quichensis'' F.J.Herm.
*''Carex × quirponensis'' Fernald

R

*''Carex × raciborskii'' Zapal.
*''Carex raddei'' Kük. – Radde's sedge
*''Carex radfordii'' Gaddy
*''Carex radiata'' (Wahlenb.) Small
*''Carex radicalis'' Boott
*''Carex radiciflora'' Dunn
*''Carex radicina'' Z.P.Wang
*''Carex rainbowii'' Luceño, Jim.Mejías, M. Escudero & Martín-Bravo
*''Carex raleighii'' Nelmes
*''Carex ramenskii'' Kom.
*''Carex ramentaceofructus'' K.T.Fu
*''Carex ramosa'' Willd.
*''Carex ramosii'' Kük.
*''Carex randalpina'' B.Walln.
*''Carex raoulii'' Boott
*''Carex raphidocarpa'' Nees
*''Carex rara'' Boott – pine-leaf sedge
*''Carex rariflora'' (Wahlenb.) Sm.
*''Carex ratongensis'' (C.B.Clarke) C.B.Clarke
*''Carex raynoldsii'' Dewey
*''Carex recta'' Boott
*''Carex × reducta'' Drejer
*''Carex regeliana'' (Kük.) Litv.
*''Carex reichei'' Kük.
*''Carex reinii'' Franch. & Sav.
*''Carex relaxa'' V.I.Krecz.
*''Carex remota'' L.
*''Carex remotiuscula'' Wahlenb. – minute-gibbous sedge
*''Carex renauldii'' H.Lév.
*''Carex reniformis'' (L.H.Bailey) Small
*''Carex renschiana'' Boeckeler
*''Carex repanda'' C.B.Clarke
*''Carex repens'' Bellardi
*''Carex reptabunda'' (Trautv.) V.I.Krecz.
*''Carex resectans'' Cheeseman
*''Carex retroflexa'' Muhl. ''ex'' Willd.
*''Carex retrofracta'' Kük.
*''Carex retrorsa'' Schwein.
*''Carex reznicekii'' Werier
*''Carex rhizina'' Blytt ''ex'' Lindblom
*''Carex rhodesiaca'' Nelmes
*''Carex rhombifructus'' Ohwi
*''Carex rhynchoperigynium'' S.D.Jones & Reznicek
*''Carex rhynchophysa'' Fisch., C.A.Mey. & Avé-Lall. – large-spike sedge
*''Carex rhynchophora'' Franch.
*''Carex richardsonii'' R.Br.
*''Carex ridongensis'' P.C.Li
*''Carex × rieseana'' Figert
*''Carex rigidioides'' (Gorodkov) V.I.Krecz.
*''Carex × rikuchiuensis'' Akiyama
*''Carex riloensis'' Stoeva & E.D.Popova
*''Carex riparia'' Curtis
*''Carex rivulorum'' Dunn
*''Carex roanensis'' F.J.Herm.
*''Carex robinsonii'' Podlech
*''Carex roraimensis'' Steyerm.
*''Carex rorulenta'' Porta
*''Carex rosea'' Willd.
*''Carex × rossiana'' Degen
*''Carex rossii'' Boott
*''Carex rostellifera'' Y.L.Chang & Y.L.Yang
*''Carex rostrata'' Stokes – beak sedge
*''Carex × rotae'' De Not.
*''Carex rotundata'' Wahlenb. – round sedge
*''Carex royleana'' Nees
*''Carex rubicunda'' Petrie
*''Carex rubrobrunnea'' C.B.Clarke
*''Carex rufina'' Drejer
*''Carex rufulistolon'' T.Koyama
*''Carex rugata'' Ohwi
*''Carex rugulosa'' Kük. – thick-nerve sedge
*''Carex runssoroensis'' K.Schum.
*''Carex rupestris'' All. – curly sedge
*''Carex rupicola'' (Pedersen) G.A.Wheeler
*''Carex ruralis'' J.Oda & Nagam.
*''Carex rutenbergiana'' Boeckeler
*''Carex ruthii'' Mack.
*''Carex ruthsatziae'' G.A.Wheeler
*''Carex rzedowskii'' Reznicek & S.González

S

*''Carex sabulosa'' Turcz. ''ex'' Kunth
*''Carex sacerdotis'' Nelmes
*''Carex sachalinensis'' F.Schmidt
*''Carex sacrosancta'' Honda
*''Carex sadoensis'' Franch.
*''Carex sagaensis'' Y.C.Yang
*''Carex sagei'' Phil.
*''Carex sahnii'' Ghildyal & U.C.Bhattach.
*''Carex sajanensis'' V.I.Krecz.
*''Carex × sakaguchii'' Ohwi
*''Carex sakonis'' T.Koyama
*''Carex salina'' Wahlenb.
*''Carex × salisiana'' Brügger
*''Carex saltaensis'' Gross
*''Carex sambiranensis'' (H.Lév.) Cherm.
*''Carex sampsonii'' Hance
*''Carex sanctae-marthae'' L.E.Mora & J.O.Rangel
*''Carex × sanionis'' K.Richt.
*''Carex sarawaketensis'' Kük.
*''Carex × sardloqensis'' E.Dahl
*''Carex sartwelliana'' Olney
*''Carex sartwellii'' Dewey
*''Carex satsumensis'' Franch. & Sav.
*''Carex savaiiensis'' Kük.
*''Carex saxatilis'' L.
*''Carex × saxenii'' Raymond
*''Carex saxicola'' Tang & F.T.Wang
*''Carex saximontana'' Mack.
*''Carex scabrata'' Schwein.
*''Carex scabrella'' Wahlenb.
*''Carex scabrifolia'' Steud. – scabrous-leaf sedge
*''Carex scabripes'' Cherm.
*''Carex scabrirostris'' Kük.
*''Carex scabrisacca'' Ohwi & Ryu
*''Carex scabriuscula'' Mack.
*''Carex scaposa'' C.B.Clarke
*''Carex schaffneri'' Boeckeler
*''Carex × schallertii'' Murr
*''Carex schiedeana'' Kunze
*''Carex schlechteri'' Nelmes
*''Carex schliebenii'' Podlech
*''Carex schmidtii'' Meinsh. – Schmidt's sedge
*''Carex schneideri'' Nelmes
*''Carex schottii'' Dewey
*''Carex × schuetzeana'' Figert
*''Carex schwackeana'' Boeckeler
*''Carex schweinitzii'' Dewey ''ex'' Schwein.
*''Carex scirpoidea'' Michx.
*''Carex scita'' Maxim.
*''Carex scitiformis'' Kük.
*''Carex scitula'' Boott
*''Carex sclerocarpa'' Franch.
*''Carex scolopendriformis'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex scoparia'' Willd.
*''Carex scopulorum'' Holm
*''Carex secalina'' Willd. ''ex'' Wahlenb.
*''Carex secta'' Boott
*''Carex sectoides'' (Kük.) Edgar
*''Carex sedakowii'' C.A.Mey. ''ex'' Meinsh. – Sedakov's sedge
*''Carex sellowiana'' Schltdl.
*''Carex semihyalofructa'' Tak.Shimizu
*''Carex sempervirens'' Vill.
*''Carex × senayana'' Soó
*''Carex × sendtneriana'' Brügger
*''Carex senta'' Boott
*''Carex seorsa'' Howe
*''Carex seposita'' C.B.Clarke
*''Carex serpenticola'' Zika
*''Carex serratodens'' S.Watson
*''Carex × serravalensis'' Beauverd
*''Carex serreana'' Hand.-Mazz.
*''Carex seticulmis'' Boeckeler
*''Carex setifolia'' Kunze
*''Carex setigera'' D.Don
*''Carex setigluma'' Reznicek & S.González
*''Carex setispica'' C.B.Clarke
*''Carex setosa'' Boott
*''Carex shaanxiensis'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex × shakushizawaensis'' Akiyama
*''Carex shandanica'' Y.C.Yang
*''Carex shanensis'' C.B.Clarke
*''Carex shangchengensis'' S.Yun Liang
*''Carex shanghaiensis'' S.X.Qian & Y.Q.Liu
*''Carex shanghangensis'' S.Yun Liang
*''Carex sheldonii'' Mack.
*''Carex shimidzensis'' Franch. – long-tail-spike sedge
*''Carex × shinanoana'' Nakai ''ex'' Aliyama
*''Carex shinnersii'' P.Rothr. & Reznicek
*''Carex shiriyajirensis'' Akiyama ''ex'' Tatew.
*''Carex shortiana'' Dewey & Torr.
*''Carex shuangbaiensis'' L.K.Dai
*''Carex shuchengensis'' S.W.Su & Q.Zhang
*''Carex siccata'' Dewey
*''Carex sichouensis'' P.C.Li
*''Carex siderosticta'' Hance – creeping broad-leaf sedge
* Carex siderosticta var. pilosa, ''Carex siderosticta'' var. ''pilosa'' H.Lév. ex T.Koyama – hairy creeping broad-leaf sedge
*''Carex silicea'' Olney
*''Carex silvestrii'' Pamp.
*''Carex simensis'' Hochst. ''ex'' A.Rich.
*''Carex simulans'' C.B.Clarke
*''Carex simulata'' Mack.
*''Carex sinclairii'' Boott ''ex'' Cheeseman
*''Carex sinoaristata'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex sinodissitiflora'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex sinomairei'' H.Lév.
*''Carex siroumensis'' Koidz. – potae sedge
*''Carex skottsbergiana'' Kük.
*''Carex socialis'' Mohlenbr. & Schwegman
*''Carex sociata'' Boott
*''Carex socotrana'' Repka & P.Madera
*''Carex soczavaeana'' Gorodkov
*''Carex sodiroi'' Kük.
*''Carex × soerensenii'' Lepage
*''Carex sohachii'' Ohwi
*''Carex solandri'' Boott
*''Carex × sooi'' Jakucs
*''Carex sordida'' Van Heurck & Müll.Arg. – short forest-live sedge
*''Carex sorianoi'' Barros
*''Carex sororia'' Kunth
*''Carex sozusensis'' Ohwi
*''Carex spachiana'' Boott
*''Carex sparganioides'' Muhl. ''ex'' Willd.
*''Carex specifica'' L.H.Bailey
*''Carex speciosa'' Kunth
*''Carex spectabilis'' Dewey
*''Carex specuicola'' J.T.Howell
*''Carex sphaerogyna'' Baker
*''Carex spicata'' Huds.
*''Carex spicatopaniculata'' Boeckeler ''ex'' C.B.Clarke
*''Carex spicigera'' Nees
*''Carex × spiculosa'' Fr.
*''Carex spilocarpa'' Steud.
*''Carex spinirostris'' Colenso
*''Carex spissa'' L.H.Bailey ''ex'' Hemsl.
*''Carex spongiosa'' Ohwi
*''Carex sprengelii'' Dewey ''ex'' Spreng.
*''Carex × squamigera'' V.I.Krecz. & Luchnik
*''Carex squarrosa'' L.
*''Carex standleyana'' Steyerm.
*''Carex stenandra'' Kük.
*''Carex stenantha'' Franch. & Sav.
*''Carex stenocarpa'' Turcz. ''ex'' V.I.Krecz.
*''Carex × stenolepis'' Less.
*''Carex stenophylla'' Wahlenb.
*''Carex stenoptila'' F.J.Herm.
*''Carex stenostachys'' Franch. & Sav.
*''Carex sterilis'' Willd.
*''Carex steudneri'' Boeckeler
*''Carex stevenii'' (Holm) Kalela
*''Carex steyermarkii'' Standl.
*''Carex stipata'' Muhl. ''ex'' Willd. – awl-fruit sedge
*''Carex stiphrogyne'' Gilli
*''Carex stipitiutriculata'' P.C.Li
*''Carex stokesii'' F.Br.
*''Carex stracheyi'' Boott ''ex'' C.B.Clarke
*''Carex stramentitia'' Boott ''ex'' Boeckeler
*''Carex straminea'' Willd. ''ex'' Schkuhr
*''Carex straminiformis'' L.H.Bailey
*''Carex streptorrhampha'' Nelmes
*''Carex striata'' Michx.
*''Carex striatula'' Michx.
*''Carex stricta'' Lam.
*''Carex × stricticulmis'' Holmb.
*''Carex × strictiformis'' Almq.
*''Carex strigosa'' Huds.
*''Carex × strigosula'' Chatenier
*''Carex stuessyi'' G.A.Wheeler
*''Carex × stygia'' Fr.
*''Carex styloflexa'' Buckley
*''Carex stylosa'' C.A.Mey.
*''Carex subandrogyna'' G.A.Wheeler & Guagl.
*''Carex subantarctica'' Speg.
*''Carex subbracteata'' Mack.
*''Carex subcapitata'' X.F.Jin, C.Z.Zheng & B.Y.Ding
*''Carex subcernua'' Ohwi
*''Carex × subcostata'' Holmb.
*''Carex subdivulsa'' (Kük.) G.A.Wheeler
*''Carex subdola'' Boott
*''Carex subebracteata'' (Kük.) Ohwi – beaked-fruit narrow mitra sedge
*''Carex suberecta'' (Olney) Britton
*''Carex subfilicinoides'' Kük.
*''Carex subfuegiana'' G.A.Wheeler
*''Carex × subimpressa'' Clokey
*''Carex subinclinata'' T.Koyama
*''Carex subinflata'' Nelmes
*''Carex sublateralis'' T.Koyama
*''Carex submollicula'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex subnigricans'' Stacey
*''Carex × subpaleacea'' J.Cay.
*''Carex × subpatula'' Holmb.
*''Carex subperakensis'' L.K.Ling & Y.Z.Huang
*''Carex subphysodes'' Popov ''ex'' V.I.Krecz.
*''Carex subpumila'' Tang & F.T.Wang ''ex'' L.K.Dai
*''Carex × subrecta'' J.Cay.
*''Carex × subsalina'' Lepage
*''Carex subscabrella'' Kük.
*''Carex subspathacea'' Wormsk. ''ex'' Hornem. – Hoppner's sedge
*''Carex subumbellata'' Meinsh. – subumbellate sedge
*''Carex suifunensis'' Kom. – narrow-scale sedge
*''Carex × sullivantii'' Boott
*''Carex × sumikawaensis'' Fujiw. & Y.Matsuda
*''Carex superata'' Naczi, Reznicek & B.A.Ford
*''Carex supina'' Willd. ''ex'' Wahlenb.
*''Carex sutchuensis'' Franch.
*''Carex × suziella'' Podp.
*''Carex swanii'' (Fernald) Mack.
*''Carex sychnocephala'' J.Carey
*''Carex sylvatica'' Huds.
*''Carex × sylvenii'' Holmb.

T

*''Carex tachirensis'' Steyerm.
*''Carex tahitensis'' F.Br.
*''Carex tahoensis'' Smiley
*''Carex taihokuensis'' Hayata
*''Carex taihuensis'' S.W.Su & S.M.Xu
*''Carex taipaishanica'' K.T.Fu
*''Carex × takoensis'' Y.Endo & Yashiro
*''Carex tamana'' Steyerm.
*''Carex tangiana'' Ohwi
*''Carex tangii'' Kük.
*''Carex tangulashanensis'' Y.C.Yang
*''Carex tapintzensis'' Franch.
*''Carex taprobanensis'' T.Koyama
*''Carex tarumensis'' Franch.
*''Carex tashiroana'' Ohwi
*''Carex tasmanica'' Kük.
*''Carex tatjanae'' Malyschev
*''Carex tatsiensis'' (Franch.) Kük.
*''Carex tavoyensis'' Nelmes
*''Carex tegulata'' H.Lév. & Vaniot – orbicular sedge
*''Carex teinogyna'' Boott – slender-pedicel sedge
*''Carex tenax'' Chapm. ''ex'' Dewey
*''Carex × tenebricans'' Holmb.
*''Carex tenebrosa'' Boott
*''Carex tenejapensis'' Reznicek & S.González
*''Carex × tenelliformis'' Holmb.
*''Carex tenera'' Dewey
*''Carex tenuiculmis'' (Petrie) Heenan & de Lange
*''Carex tenuiflora'' Wahlenb. – sparse-flower sedge
*''Carex tenuiformis'' H.Lév. & Vaniot – shadow sedge
*''Carex tenuinervis'' Ohwi
*''Carex tenuior'' T.Koyama & T.I.Chuang
*''Carex tenuipaniculata'' P.C.Li
*''Carex tenuiseta'' Franch.
*''Carex tenuispicula'' Tang ''ex'' S.Y.Liang
*''Carex teres'' Boott
*''Carex tereticaulis'' F.Muell.
*''Carex ternaria'' G.Forst.
*''Carex tessellata'' Spruce ''ex'' C.B.Clarke
*''Carex testacea'' Sol. ''ex'' Boott
*''Carex tetanica'' Schkuhr
*''Carex tetrastachya'' Scheele
*''Carex texensis'' (Torr. ''ex'' L.H.Bailey) L.H.Bailey
*''Carex thailandica'' T.Koyama
*''Carex thanikaimoniana'' Govind.
*''Carex thecata'' Boott
*''Carex thibetica'' Franch.
*''Carex thompsonii'' Franch.
*''Carex thomsonii'' Boott
*''Carex thornei'' Naczi
*''Carex thouarsii'' Carmich.
*''Carex thunbergii'' Steud.
*''Carex thurberi'' Dewey ''ex'' Torr.
*''Carex tianmushanica'' C.Z.Zheng & X.F.Jin
*''Carex tianschanica'' T.V.Egorova
*''Carex timida'' Naczi & B.A.Ford
*''Carex × timmiana'' Junge
*''Carex tincta'' (Fernald) Fernald
*''Carex titovii'' V.I.Krecz.
*''Carex × toezensis'' Simonk.
*''Carex tojquianensis'' Standl. & Steyerm.
*''Carex tokarensis'' T.Koyama
*''Carex tolucensis'' (F.J.Herm.) Reznicek
*''Carex tompkinsii'' J.T.Howell
*''Carex tonsa'' (Fernald) E.P.Bicknell
*''Carex toreadora'' Steyerm.
*''Carex × torgesiana'' Kük.
*''Carex × tornabenei'' Chiov.
*''Carex toroensis'' G.A.Wheeler
*''Carex torreyi'' Tuck.
*''Carex torta'' Boott ''ex'' Tuck.
*''Carex tovarensis'' Reznicek & G.A.Wheeler
*''Carex townsendii'' Mack.
*''Carex toyoshimae'' Tuyama
*''Carex trachycarpa'' Cheeseman
*''Carex trachycystis'' Griseb.
*''Carex traiziscana'' F.Schmidt
*''Carex transandina'' G.A.Wheeler
*''Carex transcaucasica'' T.V.Egorova
*''Carex transversa'' Boott
*''Carex trautvetteriana'' Kom.
*''Carex traversii'' Kirk
*''Carex × treverica'' Hausskn.
*''Carex triangularis'' Boeckeler
*''Carex tribuloides'' Wahlenb.
*''Carex tricephala'' Boeckeler
*''Carex × trichina'' Fernald
*''Carex trichocarpa'' Muhl. ''ex'' Willd.
*''Carex trichodes'' Steud.
*''Carex tricholepis'' Nelmes
*''Carex trichophylla'' Nelmes
*''Carex tricolor'' Velen.
*''Carex trifida'' Cav.
*''Carex trigonosperma'' Ohwi
*''Carex trinervis'' Degl.
*''Carex triquetra'' Boott
*''Carex trisperma'' Dewey
*''Carex tristachya'' Thunb. – shiny-spike sedge
** Carex tristachya var. pocilliformis, ''Carex tristachya'' var. ''pocilliformis'' (Boott) Kük. – small shiny-spike sedge
*''Carex tristis'' M.Bieb.
*''Carex trongii'' K.K.Nguyen
*''Carex troodi'' Turrill
*''Carex truncatigluma'' C.B.Clarke
*''Carex tsaiana'' F.T.Wang & Tang ''ex'' P.C.Li
*''Carex tsaratananensis'' Cherm.
*''Carex tsiangii'' F.T.Wang & Tang
*''Carex tsoi'' Merr. & Chun
*''Carex tsushimensis'' (Ohwi) Ohwi
*''Carex tuberculata'' Liebm.
*''Carex tubulosa'' Pamp.
*''Carex tuckermanii'' Boott
*''Carex tucumanensis'' G.A.Wheeler
*''Carex tumidula'' Ohwi
*''Carex tuminensis'' Kom. – Dumangang sedge
*''Carex tumulicola'' Mack.
*''Carex tungfangensis'' L.K.Dai & S.M.Huang
*''Carex tunimanensis'' Standl. & Steyerm.
*''Carex turbinata'' Liebm.
*''Carex × turfosa'' Fr.
*''Carex turgescens'' Torr.
*''Carex turkestanica'' Regel
*''Carex turrita'' C.B.Clarke
*''Carex × turuli'' Simonk.
*''Carex turumiquirensis'' Steyerm.
*''Carex tweedieana'' Nees
*''Carex typhina'' Michx.

U

*''Carex uda'' Maxim. – Uda needle sedge
*''Carex × uechtritziana'' K.Richt.
*''Carex ulobasis'' V.I.Krecz. – montane sedge
*''Carex umbellata'' Willd.
*''Carex umbrosa'' Host
** Carex umbrosa subsp. sabynensis, ''Carex umbrosa'' subsp. ''sabynensis'' (Less. ex Kunth) Kük. – narrow mitra sedge
*''Carex umbrosiformis'' H.Lév.
*''Carex uncifolia'' Cheeseman
*''Carex × ungavensis'' Lepage
*''Carex ungurensis'' Litv.
*''Carex unilateralis'' Mack.
*''Carex unisexualis'' C.B.Clarke
*''Carex urelytra'' Ohwi
*''Carex ursina'' Dewey
*''Carex uruguensis'' Boeckeler
*''Carex ussuriensis'' Kom. – Ussuri sedge
*''Carex utriculata'' Boott
*''Carex × uzenensis'' Koidz.

V

*''Carex vacillans'' Drejer
*''Carex vaginata'' Tausch – sheathed sedge
*''Carex valbrayi'' H.Lév.
*''Carex vallicola'' Dewey
*''Carex vallis-pulchrae'' Phil.
*''Carex vallis-rosetto'' K.Schum.
*''Carex van-heurckii'' Müll.Arg. – northern meadow sedge
*''Carex ventosa'' C.B.Clarke
*''Carex venusta'' Dewey
*''Carex vernacula'' L.H.Bailey
*''Carex verrucosa'' Muhl.
*''Carex verticillata'' Zoll. & Moritzi
*''Carex vesca'' C.B.Clarke ''ex'' Kük.
*''Carex vesicaria'' L. – blister sedge
*''Carex vesiculosa'' Boott
*''Carex vestita'' Willd.
*''Carex vexans'' F.J.Herm.
*''Carex × viadrina'' Figert
*''Carex vicinalis'' Boott
*''Carex vietnamica'' Raymond
*''Carex × villacensis'' Kük.
*''Carex × vimariensis'' Hausskn. ''ex'' Berthold
*''Carex virescens'' Muhl. ''ex'' Willd.
*''Carex virgata''
*''Carex viridimarginata'' Kük.
*''Carex viridistellata'' Derieg, Reznicek & Bruederle
*''Carex viridula'' Michx.
*''Carex vixdentata'' (Kük.) G.A.Wheeler
*''Carex × vratislaviensis'' Figert
*''Carex vulcani'' Hochst. ''ex'' Seub.
*''Carex vulpina'' L.
*''Carex vulpinaris'' Nees
*''Carex vulpinoidea'' Michx.

W

*''Carex wahlenbergiana'' Boott
*''Carex wahuensis'' C.A.Mey.
*''Carex wakatipu'' Petrie
*''Carex × walasii'' Ceyn.-Gield
*''Carex walkeri'' Arn. ''ex'' Boott
*''Carex wallichiana'' Spreng.
*''Carex wawuensis'' W.M.Chu ''ex'' S.Yun Liang
*''Carex wenshanensis'' L.K.Dai
*''Carex werdermannii'' L.Gross
*''Carex whitneyi'' Olney
*''Carex wiegandii'' Mack.
*''Carex wightiana'' Nees
*''Carex willdenowii'' Schkuhr ex Willd.
*''Carex williamsii'' Britton
*''Carex × winkelmannii'' Asch. & Graebn.
*''Carex winterbottomii'' C.B.Clarke
*''Carex × wolteri'' Gross
*''Carex woodii'' Dewey
*''Carex wootonii'' Mack.
*''Carex wui'' W.M.Chu ''ex'' L.K.Dai
*''Carex wushanensis'' S.Yun Liang
*''Carex wutuensis'' K.T.Fu
*''Carex wuyishanensis'' S.Yun Liang

X

*''Carex × xanthocarpa'' Degl.
*''Carex xerantica'' L.H.Bailey
*''Carex xiangxiensis'' Z.P.Wang
*''Carex xiphium'' Kom. – sword-like sedge

Y

*''Carex yajiangensis'' Tang & F.T.Wang ''ex'' S.Yun Liang
*''Carex yamatsutana'' Ohwi
*''Carex yangshuoensis'' Tang & F.T.Wang ''ex'' S.Y.Liang
*''Carex yasuii'' Katsuy.
*''Carex yonganensis'' L.K.Dai & Y.Z.Huang
*''Carex ypsilandrifolia'' F.T.Wang & Tang
*''Carex yuexiensis'' S.W.Su & S.M.Xu
*''Carex yulungshanensis'' P.C.Li
*''Carex yunlingensis'' P.C.Li
*''Carex yunnanensis'' Franch.
*''Carex yunyiana'' X.F.Jin & C.Z.Zheng
*''Carex yushuensis'' Y.C.Yang

Z

*''Carex × zahnii'' Kneuck.
*''Carex zekogensis'' Y.C.Yang
*''Carex zhenkangensis'' Tang & F.T.Wang ''ex'' S.Yun Liang
*''Carex zhonghaiensis'' S.Yun Liang
*''Carex zizaniifolia'' Raymond
*''Carex zuluensis'' C.B.Clarke
*''Carex zunyiensis'' Tang & F.T.Wang

References

{{Commons category, position=left, Carex

Carex, *List
Lists of plant species, Carex
Lists of graminoids, Carex