| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CELA3 | Cerastium latifolium Fenzl | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CELO6 | Cerastium longepedunculatum Muhl. ex Britt. | Cerastium nutans var. nutans | Caryophyllaceae
|
| CEMA5 | Cerastium maximum L. | great chickweed | Caryophyllaceae
|
| CENI4 | Cerastium nitidum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CENUB2 | Cerastium nutans Raf. var. brachypodum Engelm. ex Gray | Cerastium brachypodum | Caryophyllaceae
|
| CENUN | Cerastium nutans Raf. var. nutans | nodding chickweed | Caryophyllaceae
|
| CENUO | Cerastium nutans Raf. var. obtectum Kearney & Peebles | nodding chickweed | Caryophyllaceae
|
| CENUO2 | Cerastium nutans Raf. var. occidentale Boivin | Cerastium nutans var. nutans | Caryophyllaceae
|
| CENU2 | Cerastium nutans Raf. | nodding chickweed | Caryophyllaceae
|
| CEOB2 | Cerastium oblongifolium Torr. | Cerastium arvense ssp. velutinum var. velutinum | Caryophyllaceae
|
| CEOC4 | Cerastium occidentale Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CEOR5 | Cerastium oreophilum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CEPA15 | Cerastium patulum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CEPI2 | Cerastium pilosum Greene, non Ledeb. | Cerastium beeringianum ssp. beeringianum var. beeringianum | Caryophyllaceae
|
| CEPU9 | Cerastium pulchellum Rydb. | Cerastium beeringianum ssp. beeringianum var. beeringianum | Caryophyllaceae
|
| CEPU4 | Cerastium pumilum W. Curtis | European chickweed | Caryophyllaceae
|
| CEREC | Cerastium regelii Ostenf. ssp. caespitosum (Malmgr.) Tolm. | Regel's chickweed | Caryophyllaceae
|
| CERER | Cerastium regelii Ostenf. ssp. regelii | Regel's chickweed | Caryophyllaceae
|
| CERE4 | Cerastium regelii Ostenf. | Regel's chickweed | Caryophyllaceae
|
| CESC5 | Cerastium scammaniae Polunin | Cerastium beeringianum ssp. beeringianum var. grandiflorum | Caryophyllaceae
|
| CESC4 | Cerastium scopulorum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CESE4 | Cerastium semidecandrum L. | fivestamen chickweed | Caryophyllaceae
|
| CESE8 | Cerastium sericeum S. Wats. | Cerastium nutans var. obtectum | Caryophyllaceae
|
| CESI2 | Cerastium siculum Guss. | dry chickweed | Caryophyllaceae
|
| CESO5 | Cerastium sonnei Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CESO4 | Cerastium sordidum B.L. Robins. | Chihuahuan chickweed | Caryophyllaceae
|
| CEST3 | Cerastium strictum L. | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CESU4 | Cerastium subulatum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CETE6 | Cerastium tenuifolium Pursh | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CETE4 | Cerastium tetrandrum W. Curtis | Cerastium diffusum | Caryophyllaceae
|
| CETE3 | Cerastium texanum Britt. | Texas chickweed | Caryophyllaceae
|
| CETH5 | Cerastium thermale Rydb. | Cerastium arvense ssp. fuegianum | Caryophyllaceae
|
| CETO2 | Cerastium tomentosum L. | snow in summer | Caryophyllaceae
|
| CETR10 | Cerastium triviale Link | Cerastium fontanum ssp. vulgare | Caryophyllaceae
|
| CEVE8 | Cerastium velutinum Raf. | Cerastium arvense ssp. velutinum var. velutinum | Caryophyllaceae
|
| CEVE7 | Cerastium vestitum Greene | Cerastium arvense ssp. strictum | Caryophyllaceae
|
| CEVI6 | Cerastium villosum Muhl. ex Darl. | Cerastium arvense ssp. velutinum var. villosum | Caryophyllaceae
|
| CEVI5 | Cerastium viride Heller | Cerastium arvense ssp. maximum | Caryophyllaceae
|
| CEVI3 | Cerastium viscosum auct. non L. | Cerastium glomeratum | Caryophyllaceae
|
| CEVUH | Cerastium vulgatum L. var. hirsutum Fries | Cerastium fontanum ssp. vulgare | Caryophyllaceae
|
| CEVUH2 | Cerastium vulgatum L. var. holosteoides auct. non (Fries) Wahlenb. | Cerastium fontanum ssp. vulgare | Caryophyllaceae
|
| CEVU | Cerastium vulgatum L. 1762, non 1755 | Cerastium fontanum ssp. vulgare | Caryophyllaceae
|
| CERAS | Cerastium L. | mouse-ear chickweed | Caryophyllaceae
|
| CEAV | Cerasus avium (L.) Moench | Prunus avium | Rosaceae
|
| CEFR4 | Cerasus fruticosa (Pallas) Pallas | Prunus fruticosa | Rosaceae
|
| CELA5 | Cerasus laurocerasus (L.) Loisel. | Prunus laurocerasus | Rosaceae
|
| CEMA16 | Cerasus mahaleb (L.) Miller | Prunus mahaleb | Rosaceae
|
| CEPE7 | Cerasus pensylvanica (L. f.) Loisel. | Prunus pensylvanica var. pensylvanica | Rosaceae
|
| CEPUB | Cerasus pumila (L.) Michx. ssp. besseyi (Bailey) W.A. Weber | Prunus pumila var. besseyi | Rosaceae
|
| CEPU8 | Cerasus pumila (L.) Michx. | Prunus pumila var. pumila | Rosaceae
|
| CETO3 | Cerasus tomentosa (Thunb.) Wall. | Prunus tomentosa | Rosaceae
|
| CEER3 | Ceratiola ericoides Michx. | sand heath | Empetraceae
|
| CERAT5 | Ceratiola Michx. | ceratiola | Empetraceae
|
| CEFA | Ceratocephala falcata auct. non (L.) Pers. | Ceratocephala testiculata | Ranunculaceae
|
| CEOR2 | Ceratocephala orthoceras DC. | Ceratocephala testiculata | Ranunculaceae
|
| CETE5 | Ceratocephala testiculata (Crantz) Bess. | curveseed butterwort | Ranunculaceae
|
| CERAT3 | Ceratocephala Moench | curveseed butterwort | Ranunculaceae
|
| CECA11 | Ceratochloa carinata (Hook. & Arn.) Tutin | Bromus carinatus | Poaceae
|
| CECA12 | Ceratochloa cathartica (Vahl) Herter | Bromus catharticus | Poaceae
|
| CEMA10 | Ceratochloa marginata (Nees ex Steud.) B.D. Jackson | Bromus marginatus | Poaceae
|
| CEMA11 | Ceratochloa marginata (Nees ex Steud.) W.A. Weber | Bromus marginatus | Poaceae
|
| CEPO3 | Ceratochloa polyantha (Scribn.) Tzvelev | Bromus polyanthus var. polyanthus | Poaceae
|
| CEST6 | Ceratochloa straminea (Desv.) Stace | Bromus stamineus | Poaceae
|
| CEUN3 | Ceratochloa unioloides (Willd.) Beauv. | Bromus catharticus | Poaceae
|
| CEWI | Ceratochloa willdenowii (Kunth) W.A. Weber | Bromus catharticus | Poaceae
|
| CECO9 | Ceratodon conicus (Hampe) Lindb. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEDI10 | Ceratodon dimorphus Philib. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEHE5 | Ceratodon heterophyllus Kindb. | Ceratodon purpureus var. rotundifolius | Ditrichaceae
|
| CEPUS | Ceratodon purpureus (Hedw.) Brid. ssp. stenocarpus (Bruch & Schimp. in B.S.G.) Dix. | Ceratodon stenocarpus | Ditrichaceae
|
| CEPUA | Ceratodon purpureus (Hedw.) Brid. var. aristatus Aust. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEPUC | Ceratodon purpureus (Hedw.) Brid. var. conicus (Hampe in C. M�ll.) Hag. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEPUD3 | Ceratodon purpureus (Hedw.) Brid. var. dimorphus (Philib.) Monk. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEPUO | Ceratodon purpureus (Hedw.) Brid. var. obtusifolius (Kindb.) Britt. | Ceratodon purpureus var. rotundifolius | Ditrichaceae
|
| CEPUP4 | Ceratodon purpureus (Hedw.) Brid. var. purpureus | ceratodon moss | Ditrichaceae
|
| CEPUR | Ceratodon purpureus (Hedw.) Brid. var. rotundifolius Berggr. | roundleaf ceratodon moss | Ditrichaceae
|
| CEPUX | Ceratodon purpureus (Hedw.) Brid. var. xanthopus Sull. | Ceratodon purpureus var. purpureus | Ditrichaceae
|
| CEPU12 | Ceratodon purpureus (Hedw.) Brid. | ceratodon moss | Ditrichaceae
|
| CEST5 | Ceratodon stenocarpus Bruch & Schimp. in B.S.G. | ceratodon moss | Ditrichaceae
|
| CERAT9 | Ceratodon Brid. | ceratodon moss | Ditrichaceae
|
| CEAR11 | Ceratoides arborescens (Loisinsk.) C.P. Tsien & C.G. Ma | winterfat | Chenopodiaceae
|
| CELAR2 | Ceratoides lanata (Pursh) J.T. Howell var. ruinina Welsh | Krascheninnikovia lanata | Chenopodiaceae
|
| CELAS2 | Ceratoides lanata (Pursh) J.T. Howell var. subspinosa (Rydb.) J.T. Howell | Krascheninnikovia lanata | Chenopodiaceae
|
| CELA4 | Ceratoides lanata (Pursh) J.T. Howell | Krascheninnikovia lanata | Chenopodiaceae
|
| CELA8 | Ceratoides latens (Gmelin) Rev. & N. Holmgren | Pamirian winterfat | Chenopodiaceae
|
| CERAT10 | Ceratoides Gagnebin | winterfat | Chenopodiaceae
|
| CECU5 | Ceratolejeunea cubensis (Mont.) Schiffn. | | Lejeuneaceae
|
| CELA11 | Ceratolejeunea laetefusca (Austin) R. M. Schust. | | Lejeuneaceae
|
| CERU3 | Ceratolejeunea rubiginosa Steph. | | Lejeuneaceae
|
| CERAT8 | Ceratolejeunea (Spruce) Schiffn. | | Lejeuneaceae
|
| CESI3 | Ceratonia siliqua L. | St. John's bread | Fabaceae
|
| CERAT4 | Ceratonia L. | ceratonia | Fabaceae
|
| CEAP | Ceratophyllum apiculatum Cham. | Ceratophyllum demersum | Ceratophyllaceae
|
| CEAU4 | Ceratophyllum australe Griseb. | Ceratophyllum muricatum ssp. australe | Ceratophyllaceae
|
| CECR3 | Ceratophyllum cristatum Spruce ex K. Schum. | Ceratophyllum muricatum ssp. australe | Ceratophyllaceae
|
| CEDEA | Ceratophyllum demersum L. var. apiculatum (Cham.) Aschers. | Ceratophyllum demersum | Ceratophyllaceae
|
| CEDEA2 | Ceratophyllum demersum L. var. apiculatum (Cham.) Garcke | Ceratophyllum demersum | Ceratophyllaceae
|
| CEDEC | Ceratophyllum demersum L. var. cristatum K. Schum. | Ceratophyllum muricatum ssp. australe | Ceratophyllaceae
|
| CEDEE | Ceratophyllum demersum L. var. echinatum (Gray) Gray | Ceratophyllum echinatum | Ceratophyllaceae
|
| CEDE4 | Ceratophyllum demersum L. | coon's tail | Ceratophyllaceae
|
| CEEC2 | Ceratophyllum echinatum Gray | spineless hornwort | Ceratophyllaceae
|
| CEFL5 | Ceratophyllum floridanum Fassett | Ceratophyllum muricatum ssp. australe | Ceratophyllaceae
|