| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| EPWAP2 | Epilobium watsonii Barbey var. parishii (Trel.) C.L. Hitchc. | Epilobium ciliatum ssp. ciliatum | Onagraceae
|
| EPWA3 | Epilobium watsonii Barbey | Epilobium ciliatum ssp. watsonii | Onagraceae
|
| EPWI | Epilobium �wisconsinense Ugente | | Onagraceae
|
| EPWY | Epilobium wyomingense A. Nels. | Epilobium palustre | Onagraceae
|
| EPILO | Epilobium L. | willowherb | Onagraceae
|
| EPYON | Epimedium youngianum Fisch. & C.A. Mey. var. niveum Stern | Epimedium youngianum | Berberidaceae
|
| EPYO | Epimedium �youngianum Fisch. & C.A. Mey. (pro sp.) | | Berberidaceae
|
| EPIME | Epimedium L. | epimedium | Berberidaceae
|
| EPAT | Epipactis atrorubens (O. Hoffmann) Bess. | royal helleborine | Orchidaceae
|
| EPGI | Epipactis gigantea Dougl. ex Hook. | stream orchid | Orchidaceae
|
| EPHE | Epipactis helleborine (L.) Crantz | broadleaf helleborine | Orchidaceae
|
| EPLA5 | Epipactis latifolia (L.) All. | Epipactis helleborine | Orchidaceae
|
| EPPA8 | Epipactis palustris (L.) Crantz | marsh orchid | Orchidaceae
|
| EPRU | Epipactis rubiginosa Gaud. ex W.D.J. Koch | Epipactis atrorubens | Orchidaceae
|
| EPIPA | Epipactis Zinn | helleborine | Orchidaceae
|
| EPAC2 | Epiphyllum ackermanii Haw. | orchid cactus | Cactaceae
|
| EPHO2 | Epiphyllum hookeri (Link & Otto) Haw. | Epiphyllum phyllanthus var. hookeri | Cactaceae
|
| EPMA2 | Epiphyllum macropterum (Lem.) Britton & Rose | orchid cactus | Cactaceae
|
| EPOX | Epiphyllum oxypetalum (DC.) Haw. | Dutchman's pipe cactus | Cactaceae
|
| EPPHH | Epiphyllum phyllanthus (L.) Haw. var. hookeri (Haw.) Kimn. | climbing cactus | Cactaceae
|
| EPPH | Epiphyllum phyllanthus (L.) Haw. | climbing cactus | Cactaceae
|
| EPTR5 | Epiphyllum truncatum Haw. | Schlumbergera truncata | Cactaceae
|
| EPIPH | Epiphyllum Haw. | climbing cactus | Cactaceae
|
| EPAU | Epipremnum aureum (Lindl. & Andr�) Bunting | Epipremnum pinnatum | Araceae
|
| EPPI | Epipremnum pinnatum (L.) Engl. | centipede tongavine | Araceae
|
| EPIPR | Epipremnum Schott | tongavine | Araceae
|
| EPTO2 | Epipterygium tozeri (Grev.) Lindb. | Tozer's epipterygium moss | Bryaceae
|
| EPIPT | Epipterygium Lindb. | epipterygium moss | Bryaceae
|
| EPCU2 | Episcia cupreata (Hook.) Hanst. | flame violet | Gesneriaceae
|
| EPISC | Episcia Mart. | episcia | Gesneriaceae
|
| EPBO | Epithelantha bokei L. Benson | Epithelantha micromeris var. bokei | Cactaceae
|
| EPMIB | Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose var. bokei (L. Benson) Glass & Foster | pingpong ball cactus | Cactaceae
|
| EPMIM | Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose var. micromeris | pingpong ball cactus | Cactaceae
|
| EPMI2 | Epithelantha micromeris (Engelm.) A. Weber ex Britt. & Rose | pingpong ball cactus | Cactaceae
|
| EPITH | Epithelantha A. Weber ex Britt. & Rose | pingpong ball cactus | Cactaceae
|
| EPWI2 | Epixiphium wislizeni (Engelm. ex Gray) Munz | balloonbush | Scrophulariaceae
|
| EPIXI | Epixiphium (Gray) Munz | epixiphium | Scrophulariaceae
|
| EQAF | Equisetum affine Engelm. | Equisetum hyemale var. affine | Equisetaceae
|
| EQARA | Equisetum arvense L. var. alpestre Wahlenb. | Equisetum arvense | Equisetaceae
|
| EQARB | Equisetum arvense L. var. boreale (Bong.) Rupr. | Equisetum arvense | Equisetaceae
|
| EQARC | Equisetum arvense L. var. campestre Wahlenb. | Equisetum arvense | Equisetaceae
|
| EQARR | Equisetum arvense L. var. riparium Farw. | Equisetum arvense | Equisetaceae
|
| EQAR | Equisetum arvense L. | field horsetail | Equisetaceae
|
| EQBR | Equisetum braunii Milde | Equisetum telmateia var. braunii | Equisetaceae
|
| EQCA | Equisetum calderi Boivin | Equisetum arvense | Equisetaceae
|
| EQFE | Equisetum �ferrissii Clute (pro sp.) | | Equisetaceae
|
| EQFLL | Equisetum fluviatile L. var. limosum (L.) Gilbert | Equisetum fluviatile | Equisetaceae
|
| EQFL | Equisetum fluviatile L. | water horsetail | Equisetaceae
|
| EQFU2 | Equisetum funstonii A.A. Eat. | Equisetum laevigatum | Equisetaceae
|
| EQGI | Equisetum giganteum L. | giant horsetail | Equisetaceae
|
| EQHYA2 | Equisetum hyemale L. ssp. affine (Engelm.) Calder & Taylor | Equisetum hyemale var. affine | Equisetaceae
|
| EQHYA | Equisetum hyemale L. var. affine (Engelm.) A.A. Eat. | scouringrush horsetail | Equisetaceae
|
| EQHYC | Equisetum hyemale L. var. californicum Milde | Equisetum hyemale var. affine | Equisetaceae
|
| EQHYE | Equisetum hyemale L. var. elatum (Engelm.) Morton | Equisetum ferrissii | Equisetaceae
|
| EQHYI | Equisetum hyemale L. var. intermedium A.A. Eat. | Equisetum ferrissii | Equisetaceae
|
| EQHYP | Equisetum hyemale L. var. pseudohyemale (Farw.) Morton | Equisetum hyemale var. affine | Equisetaceae
|
| EQHYR | Equisetum hyemale L. var. robustum (A. Braun) A.A. Eat. | Equisetum hyemale var. affine | Equisetaceae
|
| EQHY | Equisetum hyemale L. | scouringrush horsetail | Equisetaceae
|
| EQIN | Equisetum intermedium (A.A. Eat.) Rydb. | Equisetum ferrissii | Equisetaceae
|
| EQKA2 | Equisetum kansanum Schaffn. | Equisetum laevigatum | Equisetaceae
|
| EQLAF | Equisetum laevigatum A. Braun ssp. funstonii (A.A. Eat.) Hartman | Equisetum laevigatum | Equisetaceae
|
| EQLA | Equisetum laevigatum A. Braun | smooth horsetail | Equisetaceae
|
| EQLI3 | Equisetum limosum L. | Equisetum fluviatile | Equisetaceae
|
| EQLI | Equisetum �litorale K�hlewein ex Rupr. (pro sp.) | | Equisetaceae
|
| EQMA | Equisetum �mackaii (Newm.) Brichan | | Equisetaceae
|
| EQMA2 | Equisetum maximum auct. non Lam. | Equisetum telmateia var. braunii | Equisetaceae
|
| EQNE | Equisetum �nelsonii (A.A. Eat.) Schaffn. (pro sp.) | | Equisetaceae
|
| EQPAA | Equisetum palustre L. var. americanum Victorin | Equisetum palustre | Equisetaceae
|
| EQPAS | Equisetum palustre L. var. simplicissimum A. Braun | Equisetum palustre | Equisetaceae
|
| EQPA | Equisetum palustre L. | marsh horsetail | Equisetaceae
|
| EQPR3 | Equisetum praealtum Raf. | Equisetum hyemale var. affine | Equisetaceae
|
| EQPR | Equisetum pratense Ehrh. | meadow horsetail | Equisetaceae
|
| EQRA | Equisetum ramosissimum Desf. | branched scouringrush | Equisetaceae
|
| EQRO | Equisetum robustum A. Braun | Equisetum hyemale var. affine | Equisetaceae
|
| EQSC | Equisetum scirpoides Michx. | dwarf scouringrush | Equisetaceae
|
| EQSYM | Equisetum sylvaticum L. var. multiramosum (Fern.) Wherry | Equisetum sylvaticum | Equisetaceae
|
| EQSYP | Equisetum sylvaticum L. var. pauciramosum Milde | Equisetum sylvaticum | Equisetaceae
|
| EQSY | Equisetum sylvaticum L. | woodland horsetail | Equisetaceae
|
| EQTEB2 | Equisetum telmateia Ehrh. ssp. braunii (Milde) Hauke | Equisetum telmateia var. braunii | Equisetaceae
|
| EQTEB | Equisetum telmateia Ehrh. var. braunii (Milde) Milde | giant horsetail | Equisetaceae
|
| EQTE | Equisetum telmateia Ehrh. | giant horsetail | Equisetaceae
|
| EQTR | Equisetum trachyodon (A. Braun) W.D.J. Koch | Equisetum mackaii | Equisetaceae
|
| EQVAA2 | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr ssp. alaskanum (A.A. Eat.) Hult�n | Equisetum variegatum var. alaskanum | Equisetaceae
|
| EQVAA | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. alaskanum A.A. Eat. | Alaskan scouringrush | Equisetaceae
|
| EQVAA3 | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. anceps Milde | Equisetum variegatum var. variegatum | Equisetaceae
|
| EQVAJ | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. jesupii A.A. Eat. | Equisetum mackaii | Equisetaceae
|
| EQVAN | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. nelsonii A.A. Eat. | Equisetum nelsonii | Equisetaceae
|
| EQVAV | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr var. variegatum | variegated scouringrush | Equisetaceae
|
| EQVA | Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr | variegated scouringrush | Equisetaceae
|
| EQUIS | Equisetum L. | horsetail | Equisetaceae
|
| ERAB4 | Eragrostis abyssinica (Jacq.) Link | Eragrostis tef | Poaceae
|
| ERAC5 | Eragrostis acuta A.S. Hitchc. | Eragrostis refracta | Poaceae
|
| ERAI3 | Eragrostis airoides Nees | darnel lovegrass | Poaceae
|
| ERAM7 | Eragrostis amabilis (L.) Wight & Arn. ex Nees | Eragrostis tenella | Poaceae
|
| ERAR | Eragrostis arida A.S. Hitchc. | Eragrostis pectinacea var. miserrima | Poaceae
|
| ERAT7 | Eragrostis atherstonii Stapf. | Eragrostis trichophora | Poaceae
|
| ERAT | Eragrostis atropioides Hbd. | hardstem lovegrass | Poaceae
|
| ERAT3 | Eragrostis atrovirens (Desv.) Trin. ex Steud. | thalia lovegrass | Poaceae
|
| ERBA | Eragrostis bahiensis (Schrad. ex J.A. Schultes) J.A. Schultes | Bahia lovegrass | Poaceae
|
| ERBA2 | Eragrostis barrelieri Daveau | Mediterranean lovegrass | Poaceae
|
| ERBE12 | Eragrostis beyrichii J. G. Sm. | Eragrostis secundiflora ssp. oxylepis | Poaceae
|