Organic | Scientific name | Common name | Part | Origin |
| Ecballium elaterium (L) A Rich | Squirting Cucumber | | SE-Europe |
| Echinacea angustifolia DC | Narrow-leaf Purple Coneflower | root | N-America |
| Echinacea pallida (Nutt) Nutt | Pale Purple Coneflower | herb | N-America |
| Echinacea purpurea (L) Moench | Purple Coneflower | herb | N-America |
| Echinocactus grusonii | Golden barrel cactus | | America |
| Echinocactus horizonthalonius | Turk's head cactus | | America |
| Echinocactus parryi | | | America |
| Echinocereus coccineus | | | America |
| Echinocereus dasyacanthus | | | America |
| Echinocereus pectinatus | | | America |
| Echinocereus pentalophus | | | America |
| Echinocereus reichenbachii | Lace hedgehog cactus | | America |
| Echinocereus rigidissimus | | | America |
| Echinocereus roemeri(Echinocereus coccineus) | | | America |
| Echinocereus stramineus | Strawberry hedgehog cactus | | America |
| Echinocereus triglochidiatus | Kingcup cactus | | America |
| Echinocereus viridiflorus | | | America |
| Echinodorus grandiflorus (Cham & Schltdl) Micheli | | | S-America |
| Echinodorus macrophyllus (Kunth) Micheli | | leaf | S-America |
| Echinops giganteus ARich | | root | W-Africa |
| Echinops spinosissimus Turra | | | |
| Echinopsis adolfofriedrichii | | | America |
| Echinopsis aurea | | | America |
| Echinopsis cardenasiana | | | America |
| Echinopsis crassicaulis | | | America |
| Echinopsis leucantha | | | America |
| Echinopsis minuana | | | America |
| Echinopsis obrepanda | | | America |
| Echinopsis rhodotricha | | | America |
| Echinopsis semidenudata | | | America |
| Echinopsis subdenudata | Easter lily cactus | | America |
| Echinosepala shuarii | | | Ecuador |
| Echium amoenum Fisch & Mey | Iranian Borago | flower | MidEast |
| Ecklonia maxima (Osb) Papenfuss | Kelp | herb | S-Africa |
| Eclipta alba (L) Hassk (syn Eclipta prostrata (L)False-daisy | False-daisy | | |
| Eclipta prostrata (L) L | False-daisy | leaf, aerial part | C-America |
| Elaeis guineensis | Oil Palm | seed & fruit | W-Africa |
| Elaeodendron croceum (Thunb) DC | Forest saffron | | S-Africa |
| Elettaria cardamomum (L) Maton | Cardamom | seed | C-America |
| Eleutherococcus nodiflorus (Dunn) S Y Hu | | bark | China |
| Eleutherococcus senticosus (Rupr & Maxim) Maxim | Siberian Ginger | rhizome | China |
| Elleanthus ampliflorus | | | Ecuador |
| Elleanthus blatteus | | | Ecuador |
| Elleanthus blatteus pink | | | Ecuador |
| Elleanthus capitatus | | | Ecuador |
| Elleanthus graminifolius | | | Ecuador |
| Elleanthus oliganthus | | | Ecuador |
| Elymus repens (L) Gould subsp Repens | Couch grass | rhizome | |
| Elytrigia repens (L) Desv ex Nevski (syn ElymusCouch grassGould subsp Repens) | Couch grass | rhizome | SE-Europe |
| Elytropappus rhinocerotis (L f) Less | Rhinocerus Bush (Leaves) leaf | | S-Africa |
| Embelia ribes Burm f | Vidanga | fruit | |
| Emblica officinalis Gaertn (syn Phyllanthus emblica L) Gooseberry | Indian | | |
| Emilia coccinea (Sims) G Don | Cupid's Paintbrush | | W-Africa |
| Empetrum nigrum L | Black Crowberry | fruit | N-Europe |
| Encyclia abbreviata | | | Ecuador |
| Encyclia angustiloba 4n | | | Ecuador |
| Encyclia argentinensis | | | Ecuador |
| Encyclia bocourtii | | | Ecuador |
| Encyclia bractescens | | | Ecuador |
| Encyclia cordigera | | | Ecuador |
| Encyclia dichroma | | | Ecuador |
| Encyclia duveenii 4N | | | Ecuador |
| Encyclia fowliei | | | Ecuador |
| Encyclia ghillanyi | | | Ecuador |
| Encyclia gracilis | | | Ecuador |
| Encyclia granitica | | | Ecuador |
| Encyclia hanburyi | | | Ecuador |
| Encyclia mapuerae 000649 | | | Ecuador |
| Encyclia mooreana | | | Ecuador |
| Encyclia naranjapatensis | | | Ecuador |
| Encyclia oncidioides | | | Ecuador |
| Encyclia osmantha | | | Ecuador |
| Encyclia patens | | | Ecuador |
| Encyclia pauciflora | | | Ecuador |
| Encyclia phoenicea | | | Ecuador |
| Encyclia seidelii | | | Ecuador |
| Encyclia tampensis | | | Ecuador |
| Encyclia thienii | | | Ecuador |
| Encyclia trachycarpa | | | Ecuador |
| Encyclia unaensis | | | Ecuador |
| Encyclia xerophytica | | | Ecuador |
| Epidendrum agoyanense | | | Ecuador |
| Epidendrum amethystinum | | | Ecuador |
| Epidendrum ancistronum | | | Ecuador |
| Epidendrum angustatum | | | Ecuador |
| Epidendrum arachnoglossum | | | Ecuador |
| Epidendrum atacazoicum | | | Ecuador |
| Epidendrum bangii | | | Ecuador |
| Epidendrum bracteolatum | | | Ecuador |
| Epidendrum brevivenium | | | Ecuador |
| Epidendrum calanthum | | | Ecuador |
| Epidendrum capricornu | | | Ecuador |
| Epidendrum centropetalum | | | Ecuador |
| Epidendrum cochlidium | | | Ecuador |
| Epidendrum compressum | | | Ecuador |
| Epidendrum corymbosum | | | Ecuador |
| Epidendrum coryophorum | | | Ecuador |
| Epidendrum cristatum | | | Ecuador |
| Epidendrum cupreum | | | Ecuador |
| Epidendrum cylindrostachys | | | Ecuador |
| Epidendrum densiflorum | | | Ecuador |
| Epidendrum difforme 1 | | | Ecuador |
| Epidendrum echinatum | | | Ecuador |
| Epidendrum elegantissimum | | | Ecuador |
| Epidendrum embreei | | | Ecuador |
| Epidendrum englerianum alba | | | Ecuador |
| Epidendrum englerianum pink | | | Ecuador |
| Epidendrum excisum | | | Ecuador |
| Epidendrum filamentosum | | | Ecuador |
| Epidendrum freireanum | | | Ecuador |
| Epidendrum gastropodium | | | Ecuador |
| Epidendrum geminiflorum | | | Ecuador |
| Epidendrum globiflorum | | | Ecuador |
| Epidendrum goodspeedianum | | | Ecuador |
| Epidendrum hemiscleria | | | Ecuador |
| Epidendrum heterobracteatum | | | Ecuador |
| Epidendrum hugomedinae | | | Ecuador |
| Epidendrum hugomedinae type | | | Ecuador |
| Epidendrum hymenodes | | | Ecuador |
| Epidendrum ivanportillae | | | Ecuador |
| Epidendrum jajense | | | Ecuador |
| Epidendrum jaramilloae | | | Ecuador |
| Epidendrum jatunsachanum | | | Ecuador |
| Epidendrum kockii | | | Ecuador |
| Epidendrum kymatochilum | | | Ecuador |
| Epidendrum lacustre | | | Ecuador |
| Epidendrum lehmannii | | | Ecuador |
| Epidendrum macbridei | | | Ecuador |
| Epidendrum macrocarpum | | | Ecuador |
| Epidendrum macroophorum | | | Ecuador |
| Epidendrum macrum | | | Ecuador |
| Epidendrum mainauanum | | | Ecuador |
| Epidendrum mancum dark | | | Ecuador |
| Epidendrum medinae | | | Ecuador |
| Epidendrum medusae | | | Ecuador |
| Epidendrum melanoporphyreum | | | Ecuador |
| Epidendrum microphyllum | | | Ecuador |
| Epidendrum moronense | | | Ecuador |
| Epidendrum musciferum | | | Ecuador |
| Epidendrum nanegalense | | | Ecuador |
| Epidendrum nanum | | | Ecuador |
| Epidendrum neolehmannia | | | Ecuador |
| Epidendrum neoporpax | | | Ecuador |
| Epidendrum nocturnum | | | Ecuador |
| Epidendrum oellgaardii | | | Ecuador |
| Epidendrum oraion | | | Ecuador |
| Epidendrum orbiculatum | | | Ecuador |
| Epidendrum parkinsonianum | | | Ecuador |
| Epidendrum parviflorum | | | Ecuador |
| Epidendrum piliferum | | | Ecuador |
| Epidendrum polyanthogastrium | | | Ecuador |
| Epidendrum porphyreum | | | Ecuador |
| Epidendrum porquerense | | | Ecuador |
| Epidendrum portillae | | | Ecuador |
| Epidendrum pteroglottis | | | Ecuador |
| Epidendrum purum | | | Ecuador |
| Epidendrum quitensium | | | Ecuador |
| Epidendrum repens | | | Ecuador |
| Epidendrum rhizomaniacum | | | Ecuador |
| Epidendrum schumannianum | | | Ecuador |
| Epidendrum schweinfurthianum | | | Ecuador |
| Epidendrum sophronitoides | | | Ecuador |
| Epidendrum suavis | | | Ecuador |
| Epidendrum suinii | | | Ecuador |
| Epidendrum summerhayesii | | | Ecuador |
| Epidendrum tetraceros | | | Ecuador |
| Epidendrum wallisii 4N | | | Ecuador |
| Epidendrum zosterifolium | | | Ecuador |
| Epiphyllum cartagense | | | America |
| Epiphyllum darrahii | Fishbone cactus | | America |
| Epiphyllum hookeri | Nightblooming cactus | | America |
| Epiphyllum pittieri | | | America |
| Epithelantha greggii | | | America |
| Epithelantha micromeris | | | America |
| Eria hyacinthodes | | | Ecuador |
| Eriopsis biloba | | | Ecuador |
| Eriopsis sceptrum | | | Ecuador |
| Eriosyce spectabilis | | | America |
| Erycina pusilla | | | Ecuador |
| Escobaria aguirreana(Acharagma aguirreanum) | | | America |
| Escobaria chaffeyi(Escobaria dasyacantha) | | | America |
| Escobaria chihuahuensis | | | America |
| Escobaria dasyacantha(Escobaria duncanii) | | | America |
| Escobaria emskoetteriana | | | America |
| Escobaria laredoi | | | America |
| Escobaria leei | | | America |
| Escobaria missouriensis(Coryphantha missouriensis) | Missouri foxtail | | America |
| Escobaria muehlbaueriana | | | America |
| Escobaria roseana | | | America |
| Escobaria roseana(Acharagma roseanum) | | | America |
| Escobaria sandbergii | | | America |
| Escobaria strobiliformis(Escobaria chihuahuensis) | | | America |
| Escobaria vivipara | spinystar, viviparous foxtail cactus, pincushion cactus, ball cactus | America |
| Espostoa baumannii(Espostocactus baumannii) | | | America |
| Espostoa nana(Espostoa melanostele) | | | America |
| Espostoa ritteri(Borzicactus sericactus) | | | America |
| Espostoopsis dybowskii | | | America |
| Eulychnia castanea | mostruosa | | America |
| Eulychnia taltalensis | | | America |
| Euphorbia horrida | | | America |
| Euphorbia lilacina | | | America |
| Euphorbia pekinesis Rupr | Da ji | root | China |
| Euphorbia poissonii Pax | | | W-Africa |
| Euphorbia unispina NEBr | | | W-Africa |
| Euphrasia officinalis L | Eyebright | | |
| Euryale ferox Salisb | Euryale | seed | China |
| Eurycoma longifolia Jack | | | SE Asia |
| Eutrochium purpureum (L) E E Lamont var purpureum | Gravel | root | N-America |
| Evernia prunastri (L) Acharius | Oak Moss | thallus | N-Africa |
| Evodia rutaecarpa (Juss) Benth /Evodia rutaecarpa (Juss) Benth var officinalis (Dode) Huang | | fruit | China |
| Evolvulus alsinoides (L) L | Dwarf Morning Glory | | |
| Exogonium purga (Wender) Benth (syn IpomoeaVeracruz(Wender) Hayne) | Jalap purga | | |