| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LELI | Legenere limosa (Greene) McVaugh | false Venus' looking glass | Campanulaceae
|
| LEGEN | Legenere McVaugh | false Venus' looking glass | Campanulaceae
|
| LEPE5 | Legousia perfoliata (L.) Britt. | Triodanis perfoliata var. perfoliata | Campanulaceae
|
| LESP2 | Legousia speculum-veneris (L.) Fisch. ex A. DC. | European Venus' looking glass | Campanulaceae
|
| LEGOU | Legousia Dur. | legousia | Campanulaceae
|
| LECO6 | Leiandra cordifolia (Sw.) Raf. | Callisia cordifolia | Commelinaceae
|
| LEOR3 | Leibergia orogenioides Coult. & Rose | Tauschia tenuissima | Apiaceae
|
| LELY6 | Leibnitzia lyrata (D. Don) Nesom | Seeman's sunbonnets | Asteraceae
|
| LESE5 | Leibnitzia seemannii (Schultz-Bip.) Nesom | Leibnitzia lyrata | Asteraceae
|
| LEIBN | Leibnitzia Cass. | sunbonnets | Asteraceae
|
| LESO6 | Leioderma sorediatum D. J. Galloway & P. M. Jorg. | | Pannariaceae
|
| LEIOD | Leioderma Nyl. | leioderma | Pannariaceae
|
| LELA15 | Leiodon latifolius (Michx.) Shuttlw. | Coreopsis latifolia | Asteraceae
|
| LEBUH | Leiophyllum buxifolium (Berg.) Ell. var. hugeri (Small) Schneid. | Leiophyllum buxifolium | Ericaceae
|
| LEBUP | Leiophyllum buxifolium (Berg.) Ell. var. prostratum (Loud.) Gray | Leiophyllum buxifolium | Ericaceae
|
| LEBU | Leiophyllum buxifolium (Berg.) Ell. | sandmyrtle | Ericaceae
|
| LEHU2 | Leiophyllum hugeri (Small) K. Schum. | Leiophyllum buxifolium | Ericaceae
|
| LELY2 | Leiophyllum lyonii Sweet | Leiophyllum buxifolium | Ericaceae
|
| LEIOP | Leiophyllum Hedw. f. | leiophyllum | Ericaceae
|
| LEAM12 | Leiostemon ambiguus (Torr.) Greene | Penstemon ambiguus var. ambiguus | Scrophulariaceae
|
| LEAP | Leiphaimos aphylla (Jacq.) Gilg | Voyria aphylla | Gentianaceae
|
| LEPA9 | Leiphaimos parasitica Schlecht. & Cham. | Voyria parasitica | Gentianaceae
|
| LEPO2 | Leiphaimos portoricensis Britt. | Voyria tenella | Gentianaceae
|
| LEFL | Leitneria floridana Chapman | corkwood | Leitneriaceae
|
| LEITN | Leitneria Chapman | corkwood | Leitneriaceae
|
| LEAL40 | Lejeunea alaskana (R. M. Schust. & Steere) Inoue & Steere | | Lejeuneaceae
|
| LEAU15 | Lejeunea autoica R. M. Schust. | | Lejeuneaceae
|
| LEBE4 | Lejeunea bermudiana (A. Evans) R. M. Schust. | | Lejeuneaceae
|
| LEBL | Lejeunea blomquistii R. M. Schust. | | Lejeuneaceae
|
| LECA62 | Lejeunea caespitosa Lindenb. | | Lejeuneaceae
|
| LECAC6 | Lejeunea calcicola R. M. Schust. var. calcicola | | Lejeuneaceae
|
| LECA65 | Lejeunea calcicola R. M. Schust. | | Lejeuneaceae
|
| LECA63 | Lejeunea cardoti Steph. | | Lejeuneaceae
|
| LECA64 | Lejeunea cavifolia (Ehrh.) Lindb. emend. H. Buch | | Lejeuneaceae
|
| LECL5 | Lejeunea cladiophora (R. M. Schust.) R. M. Schust. | | Lejeuneaceae
|
| LECL6 | Lejeunea cladogyna A. Evans | | Lejeuneaceae
|
| LEDI30 | Lejeunea dimorphophylla R. M. Schust. | | Lejeuneaceae
|
| LEFLF3 | Lejeunea flava (Sw.) Nees ssp. flava | | Lejeuneaceae
|
| LEFL24 | Lejeunea flava (Sw.) Nees | | Lejeuneaceae
|
| LEFL23 | Lejeunea floridana A. Evans | | Lejeuneaceae
|
| LEGLA2 | Lejeunea glaucescens Gottsche var. acrogyna R. M. Schust. | | Lejeuneaceae
|
| LEGLG2 | Lejeunea glaucescens Gottsche var. glaucescens | | Lejeuneaceae
|
| LEGLO2 | Lejeunea glaucescens Gottsche var. obsoleta R. M. Schust. | | Lejeuneaceae
|
| LEGL24 | Lejeunea glaucescens Gottsche | | Lejeuneaceae
|
| LELA40 | Lejeunea laetivirens Nees & Mont. | | Lejeuneaceae
|
| LELAG2 | Lejeunea lamacerina (Steph.) Schiffn. ssp. geminata R. M. Schust. | | Lejeuneaceae
|
| LELA41 | Lejeunea lamacerina (Steph.) Schiffn. | | Lejeuneaceae
|
| LEMIH | Lejeunea minutiloba A. Evans var. heterogyna R. M. Schust. | | Lejeuneaceae
|
| LEMIM3 | Lejeunea minutiloba A. Evans var. minutiloba | | Lejeuneaceae
|
| LEMI27 | Lejeunea minutiloba A. Evans | | Lejeuneaceae
|
| LERUA | Lejeunea ruthii (A. Evans) R. M. Schust. var. alata R. M. Schust. | | Lejeuneaceae
|
| LERUR | Lejeunea ruthii (A. Evans) R. M. Schust. var. ruthii | | Lejeuneaceae
|
| LERU17 | Lejeunea ruthii (A. Evans) R. M. Schust. | | Lejeuneaceae
|
| LESH9 | Lejeunea sharpii (R. M. Schust.) R. M. Schust. | | Lejeuneaceae
|
| LEULB | Lejeunea ulicina (Taylor) Gottsche ssp. bullata (Taylor) R. M. Schust. | | Lejeuneaceae
|
| LEULU | Lejeunea ulicina (Taylor) Gottsche ssp. ulicina | | Lejeuneaceae
|
| LEUL4 | Lejeunea ulicina (Taylor) Gottsche | | Lejeuneaceae
|
| LEJEU | Lejeunea Lib. nom. cons. | | Lejeuneaceae
|
| LEHA10 | Lellingeria hartii (Jenman) A.R. Sm. & R.C. Moran | Hart's lellingeria | Grammitidaceae
|
| LEMY6 | Lellingeria myosuroides (Sw.) A.R. Sm. & R.C. Moran | mouseear lellingeria | Grammitidaceae
|
| LESA16 | Lellingeria saffordii (Maxon) A.R. Sm. & R.C. Moran | Safford's lellingeria | Grammitidaceae
|
| LESU37 | Lellingeria suspensa (L.) A.R. Sm. & R.C. Moran | Jamaican lellingeria | Grammitidaceae
|
| LELLI | Lellingeria A.R. Sm. & R.C. Moran | lellingeria | Grammitidaceae
|
| LEHY | Lemaireocereus hystrix (Haw.) Salm-Dyck | Stenocereus fimbriatus | Cactaceae
|
| LETH5 | Lemaireocereus thurberi (Engelm.) Britt. & Rose | Stenocereus thurberi | Cactaceae
|
| LECO9 | Lembertia congdonii (Gray) Greene | San Joaquin woollythread | Asteraceae
|
| LEMBE | Lembertia Greene | lembertia | Asteraceae
|
| LECA | Lemmonia californica Gray | Nama californicum | Hydrophyllaceae
|
| LEAE2 | Lemna aequinoctialis Welw. | lesser duckweed | Lemnaceae
|
| LEAN5 | Lemna angolensis Welw. ex Hegelm. | Lemna aequinoctialis | Lemnaceae
|
| LECY5 | Lemna cyclostasa (Ell.) C.H. Thompson | Lemna valdiviana | Lemnaceae
|
| LECY4 | Lemna cyclostasa Ell. ex Schleid. | Lemna minor | Lemnaceae
|
| LEGI | Lemna gibba L. | swollen duckweed | Lemnaceae
|
| LEMI2 | Lemna minima Chev. ex Schleid. | Lemna minor | Lemnaceae
|
| LEMI10 | Lemna minima Phil. ex Hegelm., non Thuill. ex Beauv. | Lemna minuta | Lemnaceae
|
| LEMIO | Lemna minor L. var. obscura Austin | Lemna obscura | Lemnaceae
|
| LEMI3 | Lemna minor L. | common duckweed | Lemnaceae
|
| LEMI9 | Lemna minuscula Herter | Lemna minuta | Lemnaceae
|
| LEMI6 | Lemna minuta Kunth | least duckweed | Lemnaceae
|
| LEOB4 | Lemna oblonga Phil. | Wolffiella oblonga | Lemnaceae
|
| LEOB2 | Lemna obscura (Austin) Daubs | little duckweed | Lemnaceae
|
| LEPA16 | Lemna paucicostata Hegelm. | Lemna aequinoctialis | Lemnaceae
|
| LEPET | Lemna perpusilla Torr. var. trinervis Austin | Lemna perpusilla | Lemnaceae
|
| LEPE | Lemna perpusilla Torr. | minute duckweed | Lemnaceae
|
| LETO3 | Lemna torreyi Austin | Lemna valdiviana | Lemnaceae
|
| LETR3 | Lemna trinervis (Austin) Small | Lemna aequinoctialis | Lemnaceae
|
| LETR | Lemna trisulca L. | star duckweed | Lemnaceae
|
| LETU2 | Lemna turionifera Landolt | turion duckweed | Lemnaceae
|
| LEVAA | Lemna valdiviana Phil. var. abbreviata Hegelm. | Lemna minuta | Lemnaceae
|
| LEVAM | Lemna valdiviana Phil. var. minima Hegelm. | Lemna minuta | Lemnaceae
|
| LEVA | Lemna valdiviana Phil. | valdivia duckweed | Lemnaceae
|
| LEMNA | Lemna L. | duckweed | Lemnaceae
|
| LECH9 | Lempholemma chalazanum (Ach.) de Lesd. | | Lichinaceae
|
| LECL3 | Lempholemma cladodes (Tuck.) Zahlbr. | | Lichinaceae
|
| LEIS | Lempholemma isidioides (Nyl. ex Arnold) H. Magn. | | Lichinaceae
|
| LEMY4 | Lempholemma myriococcum (Ach.) Th. Fr. | Lempholemma polyanthes | Lichinaceae
|
| LEOB5 | Lempholemma oblique-peltatum (Eschw.) C. W. Dodge | | Lichinaceae
|
| LEPO18 | Lempholemma polyanthes (Bernh.) Malme | | Lichinaceae
|
| LERA7 | Lempholemma radiatum (Sommerf.) Henssen | | Lichinaceae
|
| LEUM5 | Lempholemma umbella (Tuck.) Zahlbr. | | Lichinaceae
|
| LEVE6 | Lempholemma vesiculiferum Henssen | | Lichinaceae
|