| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CYDE14 | Cyperus deeringianus Britt. ex Small | Cyperus retrorsus var. retrorsus | Cyperaceae
|
| CYDEM | Cyperus densicaespitosus Mattf. & K�kenth. ex K�kenth. var. major (Nees) K�kenth. | Kyllinga pumila | Cyperaceae
|
| CYDE15 | Cyperus densicaespitosus Mattf. & K�kenth. ex K�kenth. | Kyllinga pumila | Cyperaceae
|
| CYDE13 | Cyperus densus Link | Cyperus lanceolatus | Cyperaceae
|
| CYDE2 | Cyperus dentatus Torr. | toothed flatsedge | Cyperaceae
|
| CYDE10 | Cyperus dentoniae G. Tucker | hairy flatsedge | Cyperaceae
|
| CYDIC | Cyperus diandrus Torr. var. capitatus Britt. | Cyperus niger | Cyperaceae
|
| CYDI3 | Cyperus diandrus Torr. | umbrella flatsedge | Cyperaceae
|
| CYDI4 | Cyperus difformis L. | variable flatsedge | Cyperaceae
|
| CYDI12 | Cyperus diffusus Vahl | diffused flatsedge | Cyperaceae
|
| CYDI5 | Cyperus digitatus Roxb. | finger flatsedge | Cyperaceae
|
| CYDI14 | Cyperus dioicus I.M. Johnston | flatsedge | Cyperaceae
|
| CYDI15 | Cyperus dipsaceus Liebamann | Wright's flatsedge | Cyperaceae
|
| CYDI11 | Cyperus dipsaciformis Fern. | Cyperus retrofractus | Cyperaceae
|
| CYDI9 | Cyperus dissitiflorus Nees ex Torr. | Cyperus thyrsiflorus | Cyperaceae
|
| CYDI7 | Cyperus distans L. f. | Piedmont flatsedge | Cyperaceae
|
| CYDI8 | Cyperus distinctus Steud. | swamp flatsedge | Cyperaceae
|
| CYDR3 | Cyperus drummondii Torr. & Hook. | Cyperus virens | Cyperaceae
|
| CYEC2 | Cyperus echinatus (L.) Wood | globe flatsedge | Cyperaceae
|
| CYEG | Cyperus eggersii Boeckl. | Cyperus odoratus | Cyperaceae
|
| CYEL | Cyperus elegans L. | royal flatsedge | Cyperaceae
|
| CYEN | Cyperus engelmannii Steud. | Cyperus odoratus | Cyperaceae
|
| CYEN2 | Cyperus entrerianus Boeckl. | woodrush flatsedge | Cyperaceae
|
| CYER | Cyperus eragrostis Lam. | tall flatsedge | Cyperaceae
|
| CYER2 | Cyperus erythrorhizos Muhl. | redroot flatsedge | Cyperaceae
|
| CYESA | Cyperus esculentus L. var. angustispicatus Britt. | Cyperus esculentus var. leptostachyus | Cyperaceae
|
| CYESH | Cyperus esculentus L. var. hermannii (Buckl.) Britt. | chufa flatsedge | Cyperaceae
|
| CYESL | Cyperus esculentus L. var. leptostachyus Boeckl. | chufa flatsedge | Cyperaceae
|
| CYESM | Cyperus esculentus L. var. macrostachyus Boeckl. | chufa flatsedge | Cyperaceae
|
| CYESS | Cyperus esculentus L. var. sativus Boeckl. | chufa flatsedge | Cyperaceae
|
| CYES | Cyperus esculentus L. | chufa flatsedge | Cyperaceae
|
| CYES3 | Cyperus esculentus auct. non L. p.p. | Cyperus esculentus var. leptostachyus | Cyperaceae
|
| CYFA3 | Cyperus fauriei K�kenth. | alpine flatsedge | Cyperaceae
|
| CYFED | Cyperus fendlerianus Boeckl. var. debilis (Britt.) K�kenth. | Cyperus sphaerolepis | Cyperaceae
|
| CYFE2 | Cyperus fendlerianus Boeckl. | Fendler's flatsedge | Cyperaceae
|
| CYFEA | Cyperus ferax L.C. Rich. var. auriculatus (Nees & Meyen ex Kunth) K�kenth. | Cyperus auriculatus | Cyperaceae
|
| CYFE3 | Cyperus ferax L.C. Rich. | Cyperus odoratus | Cyperaceae
|
| CYFE4 | Cyperus ferruginescens Boeckl. | Cyperus odoratus | Cyperaceae
|
| CYFI | Cyperus filicinus Vahl | fern flatsedge | Cyperaceae
|
| CYFIM | Cyperus filiculmis Vahl var. macilentus Fern. | Cyperus lupulinus ssp. macilentus | Cyperaceae
|
| CYFIO | Cyperus filiculmis Vahl var. oblitus Fern. & Grisc. | Cyperus grayi | Cyperaceae
|
| CYFI2 | Cyperus filiculmis auct. non Vahl | Cyperus lupulinus ssp. lupulinus | Cyperaceae
|
| CYFID | Cyperus filiformis Sw. var. densiceps K�kenth. | Cyperus floridanus | Cyperaceae
|
| CYFI4 | Cyperus filiformis Sw. | wiry flatsedge | Cyperaceae
|
| CYFL8 | Cyperus flabelliformis Rottb. | Cyperus involucratus | Cyperaceae
|
| CYFLP | Cyperus flavescens L. var. poiformis (Pursh) Fern. | Cyperus flavescens | Cyperaceae
|
| CYFL | Cyperus flavescens L. | yellow flatsedge | Cyperaceae
|
| CYFL5 | Cyperus flavicomus Michx. | whiteedge flatsedge | Cyperaceae
|
| CYFL9 | Cyperus flavus (Vahl) Nees, non J.& K. Presl | Cyperus aggregatus | Cyperaceae
|
| CYFL3 | Cyperus flexuosus Vahl | Vahl's flatsedge | Cyperaceae
|
| CYFL10 | Cyperus floribundus (K�k.) Carter & Jones | Rio Grande sedge | Cyperaceae
|
| CYFL6 | Cyperus floridanus Britt. | Florida flatsedge | Cyperaceae
|
| CYFU9 | Cyperus fugax Liebm. | | Cyperaceae
|
| CYFU2 | Cyperus fuligineus Chapman | limestone flatsedge | Cyperaceae
|
| CYFU3 | Cyperus fuscus L. | brown flatsedge | Cyperaceae
|
| CYGI2 | Cyperus giganteus Vahl | giant flatsedge | Cyperaceae
|
| CYGLR | Cyperus globulosus Aubl. var. robustus (Boeckl.) Shinners | Cyperus retrorsus var. robustus | Cyperaceae
|
| CYGL3 | Cyperus globulosus auct. non Aubl. | Cyperus croceus | Cyperaceae
|
| CYGR9 | Cyperus gracilis R. Br. | slimjim flatsedge | Cyperaceae
|
| CYGR10 | Cyperus granitophilus McVaugh | granite flatsedge | Cyperaceae
|
| CYGR13 | Cyperus granularis (Desf.) Britt. | Cyperus nanus var. nanus | Cyperaceae
|
| CYGR2 | Cyperus grayi Torr. | Gray's flatsedge | Cyperaceae
|
| CYGR11 | Cyperus grayoides Mohlenbrock | Illinois flatsedge | Cyperaceae
|
| CYHA8 | Cyperus halei Torr. ex Britt. | Cyperus erythrorhizos | Cyperaceae
|
| CYHA10 | Cyperus hallii Britt. | Cyperus setigerus | Cyperaceae
|
| CYHA9 | Cyperus hansenii Britt. | Cyperus strigosus | Cyperaceae
|
| CYHAA | Cyperus haspan L. var. americanus Boeckl. | Cyperus haspan | Cyperaceae
|
| CYHA | Cyperus haspan L. | haspan flatsedge | Cyperaceae
|
| CYHE2 | Cyperus hermaphroditus (Jacq.) Standl. | | Cyperaceae
|
| CYHID | Cyperus hillebrandii Boeckl. var. decipiens (Hbd.) K�kenth. | Hillebrand's flatsedge | Cyperaceae
|
| CYHIH | Cyperus hillebrandii Boeckl. var. helleri K�kenth. | Cyperus hillebrandii var. hillebrandii | Cyperaceae
|
| CYHIH2 | Cyperus hillebrandii Boeckl. var. hillebrandii | Hillebrand's flatsedge | Cyperaceae
|
| CYHIM | Cyperus hillebrandii Boeckl. var. mauiensis (Hbd.) K�kenth. | Cyperus hillebrandii var. hillebrandii | Cyperaceae
|
| CYHI | Cyperus hillebrandii Boeckl. | Hillebrand's flatsedge | Cyperaceae
|
| CYHO9 | Cyperus holosericeus Link | Cyperus polystachyos var. texensis | Cyperaceae
|
| CYHO | Cyperus houghtonii Torr. | Houghton's flatsedge | Cyperaceae
|
| CYHU5 | Cyperus huarmensis (Kunth) M.C. Johnston | Cyperus aggregatus | Cyperaceae
|
| CYHY7 | Cyperus hyalinus Vahl | Queensland sedge | Cyperaceae
|
| CYHYB | Cyperus hypochlorus Hbd. var. brevior K�kenth. | Oahu flatsedge | Cyperaceae
|
| CYHYD | Cyperus hypochlorus Hbd. var. densispicatus Skottsberg | Cyperus hypochlorus var. hypochlorus | Cyperaceae
|
| CYHYH | Cyperus hypochlorus Hbd. var. hypochlorus | Oahu flatsedge | Cyperaceae
|
| CYHYK | Cyperus hypochlorus Hbd. var. kauaiensis K�kenth. | Oahu flatsedge | Cyperaceae
|
| CYHY2 | Cyperus hypochlorus Hbd. | Oahu flatsedge | Cyperaceae
|
| CYHY6 | Cyperus hypopitys G. Tucker | | Cyperaceae
|
| CYHY | Cyperus hystricinus Fern. | bristly flatsedge | Cyperaceae
|
| CYIM | Cyperus imbricatus Retz. | shingle flatsedge | Cyperaceae
|
| CYIN8 | Cyperus incompletus (Jacq.) Link | Cyperus hermaphroditus | Cyperaceae
|
| CYIN9 | Cyperus inflexus Muhl. | Cyperus squarrosus | Cyperaceae
|
| CYIN6 | Cyperus involucratus Rottb. | unbrella plant | Cyperaceae
|
| CYIR | Cyperus iria L. | ricefield flatsedge | Cyperaceae
|
| CYJA | Cyperus javanicus Houtt. | Javanese flatsedge | Cyperaceae
|
| CYKU2 | Cyperus kunthianus (Gaud.) Hbd. | Maui flatsedge | Cyperaceae
|
| CYKY | Cyperus kyllingia Endl. | Kyllinga nemoralis | Cyperaceae
|
| CYLA2 | Cyperus laevigatus L. | smooth flatsedge | Cyperaceae
|
| CYLA3 | Cyperus lancastriensis Porter ex Gray | manyflower flatsedge | Cyperaceae
|
| CYLAC | Cyperus lanceolatus Poir. var. compositus J.& K. Presl | Cyperus lanceolatus | Cyperaceae
|
| CYLA5 | Cyperus lanceolatus Poir. | epiphytic flatsedge | Cyperaceae
|
| CYLE2 | Cyperus lecontei Torr. ex Steud. | Le Conte's flatsedge | Cyperaceae
|
| CYLE | Cyperus lentiginosus Millsp. & Chase | Latin American flatsedge | Cyperaceae
|
| CYLI | Cyperus ligularis L. | Alabama swamp flatsedge | Cyperaceae
|
| CYLI10 | Cyperus litoreus (C.B. Clarke) Britt. | Cyperus retrorsus var. retrorsus | Cyperaceae
|