| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| ERITR | Eritrichium Schrad. ex Gaudin | alpine forget-me-not | Boraginaceae
|
| ERLAN2 | Erlangea Sch. Bip. | erlangea | Asteraceae
|
| ERBO5 | Ermania borealis (Greene) Hult�n | Smelowskia borealis var. borealis | Brassicaceae
|
| ERAN16 | Ernodea angusta Small | Ernodea littoralis | Rubiaceae
|
| ERCO44 | Ernodea cokeri Britton ex Coker | one-nerved ernodea | Rubiaceae
|
| ERLIA | Ernodea littoralis Sw. var. angusta (Small) R.W. Long | Ernodea littoralis | Rubiaceae
|
| ERLI5 | Ernodea littoralis Sw. | coughbush | Rubiaceae
|
| ERNOD | Ernodea Sw. | ernodea | Rubiaceae
|
| ERTR15 | Erocallis triphylla (S. Wats.) Rydb. | Lewisia triphylla | Portulacaceae
|
| ERAE2 | Erodium aethiopicum (Lam.) Brumh. & Thellung | Erodium cicutarium ssp. jacquinianum | Geraniaceae
|
| ERBO | Erodium botrys (Cav.) Bertol. | longbeak stork's bill | Geraniaceae
|
| ERBR14 | Erodium brachycarpum (Godr.) Thellung | shortfruit stork's bill | Geraniaceae
|
| ERCI9 | Erodium ciconium (L.) L'H�r. ex Ait. | common stork's bill | Geraniaceae
|
| ERCIB2 | Erodium cicutarium (L.) L'H�r. ex Ait. ssp. bipinnatum Tourlet | redstem stork's bill | Geraniaceae
|
| ERCIC | Erodium cicutarium (L.) L'H�r. ex Ait. ssp. cicutarium | redstem stork's bill | Geraniaceae
|
| ERCIJ | Erodium cicutarium (L.) L'H�r. ex Ait. ssp. jacquinianum (Fisch., C.A. Mey. & Av�-Lall.) Briq. | redstem stork's bill | Geraniaceae
|
| ERCI6 | Erodium cicutarium (L.) L'H�r. ex Ait. | redstem stork's bill | Geraniaceae
|
| ERCY2 | Erodium cygnorum Nees | Australian stork's bill | Geraniaceae
|
| ERGR15 | Erodium gruinum (L.) L'H�r. ex Ait. | Iranian stork's bill | Geraniaceae
|
| ERLAB | Erodium laciniatum (Cav.) Willd. var. bovei (Delile) Murbeck | cutleaf stork's bill | Geraniaceae
|
| ERLA18 | Erodium laciniatum (Cav.) Willd. | cutleaf stork's bill | Geraniaceae
|
| ERMAC | Erodium macrophyllum Hook. & Arn. var. californicum (Greene) Jepson | California stork's bill | Geraniaceae
|
| ERMAM2 | Erodium macrophyllum Hook. & Arn. var. macrophyllum | roundleaf stork's bill | Geraniaceae
|
| ERMA5 | Erodium macrophyllum Hook. & Arn. | roundleaf stork's bill | Geraniaceae
|
| ERMA6 | Erodium malacoides (L.) L'H�r. ex Ait. | Mediterranean stork's bill | Geraniaceae
|
| ERMOM | Erodium moschatum (L.) L'H�r. ex Ait. var. moschatum | musky stork's bill | Geraniaceae
|
| ERMOP | Erodium moschatum (L.) L'H�r. ex Ait. var. praecox Lange | musky stork's bill | Geraniaceae
|
| ERMO7 | Erodium moschatum (L.) L'H�r. ex Ait. | musky stork's bill | Geraniaceae
|
| EROB2 | Erodium obtusiplicatum (Maire, Weiller & Wilczek) J.T. Howell | Erodium brachycarpum | Geraniaceae
|
| ERST6 | Erodium stephenianum Willd. | Stephen's stork's bill | Geraniaceae
|
| ERTE13 | Erodium texanum Gray | Texas stork's bill | Geraniaceae
|
| ERODI | Erodium L'H�r. ex Ait. | stork's bill | Geraniaceae
|
| ERSP15 | Erophila spathulata A.F. Lang | Draba verna | Brassicaceae
|
| ERVEP | Erophila verna (L.) Bess. ssp. praecox (Stev.) S.M. Walters | Draba verna | Brassicaceae
|
| ERVES2 | Erophila verna (L.) Bess. ssp. spathulata (A.F. Lang) S.M. Walters | Draba verna | Brassicaceae
|
| ERVE8 | Erophila verna (L.) Bess. | Draba verna | Brassicaceae
|
| ERAL15 | Eroteum albopunctatum (Griseb.) Britt. | Cleyera albopunctata | Theaceae
|
| ERAC8 | Erpodium acrifolium Purs. | erpodium moss | Erpodiaceae
|
| ERBI6 | Erpodium biseriatum (Aust.) Aust. | erpodium moss | Erpodiaceae
|
| ERDO3 | Erpodium domingense (Spreng.) Brid. ex C. M�ll. | Domingo erpodium moss | Erpodiaceae
|
| ERPOD | Erpodium (Brid.) Brid. | erpodium moss | Erpodiaceae
|
| ERRO7 | Errazurizia rotundata (Woot.) Barneby | roundleaf dunebroom | Fabaceae
|
| ERRAZ | Errazurizia Phil. | dunebroom | Fabaceae
|
| ERER10 | Eruca eruca (L.) Aschers. & Graebn. | Eruca vesicaria ssp. sativa | Brassicaceae
|
| ERSA7 | Eruca sativa P. Mill. | Eruca vesicaria ssp. sativa | Brassicaceae
|
| ERVES | Eruca vesicaria (L.) Cav. ssp. sativa (P. Mill.) Thellung | rocketsalad | Brassicaceae
|
| ERVE5 | Eruca vesicaria (L.) Cav. | rocketsalad | Brassicaceae
|
| ERUCA | Eruca P. Mill. | rocketsalad | Brassicaceae
|
| ERAR23 | Erucastrum armoracioides (Czern. ex Turcz.) Cruchet | Brassica elongata | Brassicaceae
|
| ERGA | Erucastrum gallicum (Willd.) O.E. Schulz | common dogmustard | Brassicaceae
|
| ERUCA2 | Erucastrum K. Presl | dogmustard | Brassicaceae
|
| ERCO29 | Ervatamia coronaria (L.) Stapf | Tabernaemontana divaricata | Apocynaceae
|
| ERER12 | Ervum ervilia L. | Vicia ervilia | Fabaceae
|
| ERLE15 | Ervum lens L. | Lens culinaris | Fabaceae
|
| ERMI9 | Erxlebenia minor (L.) Rydb. | Pyrola minor | Pyrolaceae
|
| ERAL8 | Eryngium alismifolium Greene | Modoc eryngo | Apiaceae
|
| ERAM11 | Eryngium amethystinum L. | amethyst eryngo | Apiaceae
|
| ERAQA | Eryngium aquaticum L. var. aquaticum | rattlesnakemaster | Apiaceae
|
| ERAQF | Eryngium aquaticum L. var. floridanum (Coult. & Rose) Mathias & Constance | Eryngium aquaticum var. ravenelii | Apiaceae
|
| ERAQR | Eryngium aquaticum L. var. ravenelii (Gray) Mathias & Constance | rattlesnakemaster | Apiaceae
|
| ERAQ | Eryngium aquaticum L. | rattlesnakemaster | Apiaceae
|
| ERARP2 | Eryngium aristulatum Jepson ssp. parishii (Coult. & Rose) Beauchamp | Eryngium aristulatum var. parishii | Apiaceae
|
| ERARA | Eryngium aristulatum Jepson var. aristulatum | California eryngo | Apiaceae
|
| ERARH | Eryngium aristulatum Jepson var. hooveri Sheikh | Hoover's eryngo | Apiaceae
|
| ERARP | Eryngium aristulatum Jepson var. parishii (Coult. & Rose) Mathias & Constance | Parish's eryngo | Apiaceae
|
| ERAR11 | Eryngium aristulatum Jepson | California eryngo | Apiaceae
|
| ERAR12 | Eryngium armatum (S. Wats.) Coult. & Rose | coastal eryngo | Apiaceae
|
| ERAR13 | Eryngium aromaticum Baldw. | fragrant eryngo | Apiaceae
|
| ERAR14 | Eryngium articulatum Hook. | beethistle | Apiaceae
|
| ERBA6 | Eryngium baldwinii Spreng. | Baldwin's eryngo | Apiaceae
|
| ERCA19 | Eryngium campestre L. | field eryngo | Apiaceae
|
| ERCA33 | Eryngium castrense Jepson | Great Valley eryngo | Apiaceae
|
| ERCO39 | Eryngium constancei Sheikh | Loch Lomond eryngo | Apiaceae
|
| ERCR8 | Eryngium creticum Lam. | eryngo | Apiaceae
|
| ERCU4 | Eryngium cuneifolium Small | wedgeleaf eryngo | Apiaceae
|
| ERDI7 | Eryngium diffusum Torr. | spreading eryngo | Apiaceae
|
| ERDI8 | Eryngium divaricatum Hook. & Arn. | ballast eryngo | Apiaceae
|
| ERFL14 | Eryngium floridanum Coult. & Rose | Eryngium aquaticum var. ravenelii | Apiaceae
|
| ERFO5 | Eryngium foetidum L. | spiritweed | Apiaceae
|
| ERHE3 | Eryngium heterophyllum Engelm. | Wright's eryngo | Apiaceae
|
| ERHO9 | Eryngium hookeri Walp. | Hooker's eryngo | Apiaceae
|
| ERIN6 | Eryngium integrifolium Walt. | blueflower eryngo | Apiaceae
|
| ERLE11 | Eryngium leavenworthii Torr. & Gray | Leavenworth's eryngo | Apiaceae
|
| ERLE12 | Eryngium lemmonii Coult. & Rose | Chiricahua Mountain eryngo | Apiaceae
|
| ERLU7 | Eryngium ludovicianum Morong | Eryngium integrifolium | Apiaceae
|
| ERMA7 | Eryngium maritimum L. | seaside eryngo | Apiaceae
|
| ERMA10 | Eryngium mathiasiae Sheikh | Mathias' eryngo | Apiaceae
|
| ERNA2 | Eryngium nasturtiifolium Juss. ex Delar. f. | hierba del sapo | Apiaceae
|
| ERPA33 | Eryngium parishii Coult. & Rose | Eryngium aristulatum var. parishii | Apiaceae
|
| ERPE7 | Eryngium petiolatum Hook. | rushleaf eryngo | Apiaceae
|
| ERPH3 | Eryngium phyteumae Delar. f. | Huachuca Mountain eryngo | Apiaceae
|
| ERPI4 | Eryngium pinnatisectum Jepson | Tuolumne eryngo | Apiaceae
|
| ERPL5 | Eryngium planum L. | plains eryngo | Apiaceae
|
| ERPRD | Eryngium prostratum Nutt. ex DC. var. disjunctum Fern. | Eryngium prostratum | Apiaceae
|
| ERPR5 | Eryngium prostratum Nutt. ex DC. | creeping eryngo | Apiaceae
|
| ERRA5 | Eryngium racemosum Jepson | delta eryngo | Apiaceae
|
| ERRA10 | Eryngium ravenelii Gray | Eryngium aquaticum var. ravenelii | Apiaceae
|
| ERSP10 | Eryngium sparganophyllum Hemsl. | Arizona eryngo | Apiaceae
|
| ERSP16 | Eryngium spinosepalum Mathias | spinysepal eryngo | Apiaceae
|
| ERSY2 | Eryngium synchaetum (Gray ex Coult. & Rose) Coult. & Rose | Eryngium yuccifolium var. synchaetum | Apiaceae
|
| ERVAC | Eryngium vaseyi Coult. & Rose var. castrense (Jepson) Hoover ex Mathias & Constance | Eryngium castrense | Apiaceae
|