| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LESC2 | Leptospermum scoparium J.R. & G. Forst. | broom teatree | Myrtaceae
|
| LEPTO4 | Leptospermum J.R. & G. Forst. | teatree | Myrtaceae
|
| LEBI4 | Leptosyne bigelovii (Gray) Gray | Coreopsis bigelovii | Asteraceae
|
| LECA17 | Leptosyne californica Nutt. | Coreopsis californica var. californica | Asteraceae
|
| LEDO5 | Leptosyne douglasii DC. | Coreopsis douglasii | Asteraceae
|
| LEGI2 | Leptosyne gigantea Kellogg | Coreopsis gigantea | Asteraceae
|
| LEHA3 | Leptosyne hamiltonii Elmer | Coreopsis hamiltonii | Asteraceae
|
| LEST9 | Leptosyne stillmanii Gray | Coreopsis stillmanii | Asteraceae
|
| LEAN6 | Leptotaenia anomala Coult. & Rose | Lomatium caruifolium var. denticulatum | Apiaceae
|
| LEBR4 | Leptotaenia bradshawii Rose ex Mathias | Lomatium bradshawii | Apiaceae
|
| LECA15 | Leptotaenia californica Nutt. | Lomatium californicum | Apiaceae
|
| LEDI7 | Leptotaenia dissecta Nutt. | Lomatium dissectum var. dissectum | Apiaceae
|
| LEHU3 | Leptotaenia humilis Coult. & Rose | Lomatium caruifolium var. denticulatum | Apiaceae
|
| LEMU5 | Leptotaenia multifida Nutt. | Lomatium dissectum var. multifidum | Apiaceae
|
| LEAU9 | Leptotrema auberianum (Mont.) Fink | Ocellularia auberiana | Thelotremataceae
|
| LEGL17 | Leptotrema glaucescens (Nyl.) Mull. Arg. | Myriotrema glaucescens | Thelotremataceae
|
| LEHE9 | Leptotrema heterosporum (C. Knight ex F. M. Bailey) Zahlbr. | Thelotrema santense | Thelotremataceae
|
| LELA28 | Leptotrema laeviusculum (Nyl.) Zahlbr. | Myriotrema laeviusculum | Thelotremataceae
|
| LELE24 | Leptotrema lepadodes (Tuck.) Zahlbr. | Thelotrema monospermum | Thelotremataceae
|
| LEMO14 | Leptotrema monosporum (Nyl.) Mull. Arg. | Thelotrema monospermum | Thelotremataceae
|
| LEOB8 | Leptotrema obturascens (Nyl.) Hale | Myriotrema bahianum | Thelotremataceae
|
| LEPO12 | Leptotrema polycarpum Mull. Arg. | Myriotrema subcompunctum | Thelotremataceae
|
| LERA10 | Leptotrema ravenelii (Tuck.) Fink | Myriotrema wightii | Thelotremataceae
|
| LERE15 | Leptotrema reclusum (Krempelh.) Zahlbr. | Myriotrema reclusum | Thelotremataceae
|
| LESA13 | Leptotrema santense (Tuck.) Zahlbr. | Thelotrema santense | Thelotremataceae
|
| LEWI3 | Leptotrema wightii (Taylor) Mull. Arg. | Myriotrema wightii | Thelotremataceae
|
| LECI3 | Lepturus cinereus Burcham | Lepturus repens | Poaceae
|
| LECY2 | Lepturus cylindricus (Willd.) Trin. | Hainardia cylindrica | Poaceae
|
| LEREC | Lepturus repens (G. Forst.) R. Br. var. cinereus (Burcham) Fosberg | Lepturus repens | Poaceae
|
| LEREO | Lepturus repens (G. Forst.) R. Br. var. occidentalis Fosberg | Lepturus repens | Poaceae
|
| LERES | Lepturus repens (G. Forst.) R. Br. var. subulatus Fosberg | Lepturus repens | Poaceae
|
| LERE | Lepturus repens (G. Forst.) R. Br. | Pacific Island thintail | Poaceae
|
| LEPTU | Lepturus R. Br. | thintail | Poaceae
|
| LEAM2 | Lepuropetalon amplexifolium (Sternb.) Ser. | Leptarrhena pyrolifolia | Saxifragaceae
|
| LESP | Lepuropetalon spathulatum Ell. | petiteplant | Saxifragaceae
|
| LEPUR | Lepuropetalon Ell. | lepuropetalon | Saxifragaceae
|
| LEHO7 | Lepyrodiclis holosteoides (C.A. Mey.) Fenzl ex Fisch. & C.A. Mey. | false jagged-ckickweed | Caryophyllaceae
|
| LEPYR | Lepyrodiclis Fenzl | false jagged-ckickweed | Caryophyllaceae
|
| LEFLM | Lerchenfeldia flexuosa (L.) Schur ssp. montana (L.) Tzvelev | Deschampsia flexuosa var. montana | Poaceae
|
| LEFL5 | Lerchenfeldia flexuosa (L.) Schur | Deschampsia flexuosa var. flexuosa | Poaceae
|
| LEAR26 | Lescuraea arizonae (Williams) P. Wils. & Norris | Arizona lescuraea moss | Leskeaceae
|
| LEAT14 | Lescuraea atricha (Kindb. in Mac. & Kindb.) Lawt. | Pseudoleskea atricha | Leskeaceae
|
| LEBA6 | Lescuraea baileyi (Best & Grout in Grout) Lawt. | Pseudoleskea baileyi | Leskeaceae
|
| LEFR9 | Lescuraea frigida Kindb. | Lescuraea saxicola | Leskeaceae
|
| LEIL2 | Lescuraea iliamniana Lawt. | Pseudoleskea julacea | Leskeaceae
|
| LEIM4 | Lescuraea imperfecta C. M�ll. & Kindb. in Mac. & Kindb. | Pseudoleskea stenophylla | Leskeaceae
|
| LEING | Lescuraea incurvata (Hedw.) Lawt. var. gigantea Lawt. | Pseudoleskea incurvata var. gigantea | Leskeaceae
|
| LEINT | Lescuraea incurvata (Hedw.) Lawt. var. tenuiretis (Culm.) Lawt. | Pseudoleskea incurvata var. tenuiretis | Leskeaceae
|
| LEIN23 | Lescuraea incurvata (Hedw.) Lawt. | Pseudoleskea incurvata var. incurvata | Leskeaceae
|
| LEJU5 | Lescuraea julacea Besch. & Card. in Card. | Pseudoleskea julacea | Leskeaceae
|
| LEMUS | Lescuraea mutabilis (Brid.) Lindb. var. saxicola (Schimp. in B.S.G.) Hag. | Lescuraea saxicola | Leskeaceae
|
| LEPA37 | Lescuraea patens (Lindb.) Arnell & C. Jens. | Pseudoleskea patens | Leskeaceae
|
| LERAC | Lescuraea radicosa (Mitt.) M�nk. var. compacta (Best) Lawt. | Pseudoleskea radicosa var. compacta | Leskeaceae
|
| LERAD | Lescuraea radicosa (Mitt.) M�nk. var. denudata (Kindb. in Mac. & Kindb.) Lawt. | Pseudoleskea radicosa var. denudata | Leskeaceae
|
| LERAP2 | Lescuraea radicosa (Mitt.) M�nk. var. pallida (Best) Lawt. | Pseudoleskea radicosa var. pallida | Leskeaceae
|
| LERA12 | Lescuraea radicosa (Mitt.) M�nk. | Pseudoleskea radicosa var. radicosa | Leskeaceae
|
| LESA15 | Lescuraea saviana (De Not.) Lawt. | Pseudoleskea saviana | Leskeaceae
|
| LESA14 | Lescuraea saxicola (Schimp. in B.S.G.) Milde | lescuraea moss | Leskeaceae
|
| LEST19 | Lescuraea stenophylla (Ren. & Card. in R�ll) Kindb. | Pseudoleskea stenophylla | Leskeaceae
|
| LESCU | Lescuraea Schimp. in B.S.G. | lescuraea moss | Leskeaceae
|
| LEAN15 | Leskea angustata Tayl. | leskea moss | Leskeaceae
|
| LEAR27 | Leskea arenicola Best | Leskea polycarpa | Leskeaceae
|
| LEAU11 | Leskea australis Sharp | leskea moss | Leskeaceae
|
| LECAA2 | Leskea catenulata (P. Beauv.) Mitt. in Lindb. var. acuminata Culm. | Pseudoleskeella sibirica | Leskeaceae
|
| LECY12 | Leskea cyrtophylla Kindb. in Mac. & Kindb. | Pseudoleskeella tectorum | Leskeaceae
|
| LEGR21 | Leskea gracilescens Hedw. | leskea moss | Leskeaceae
|
| LEMO15 | Leskea montanae (Bryhn) Grout | Leskeella nervosa | Leskeaceae
|
| LENEB | Leskea nervosa (Brid.) Myr. var. bulbifera (Brid.) Best in Mac. | Leskeella nervosa | Leskeaceae
|
| LENEF | Leskea nervosa (Brid.) Myr. var. flagellifera Kindb. | Leskeella nervosa | Leskeaceae
|
| LENEN2 | Leskea nervosa (Brid.) Myr. var. nigrescens (Kindb.) Best | Leskeella nervosa | Leskeaceae
|
| LENES | Leskea nervosa (Brid.) Myr. var. sibirica (Arnell) Broth. | Pseudoleskeella sibirica | Leskeaceae
|
| LENE16 | Leskea nervosa (Brid.) Myr. | Leskeella nervosa | Leskeaceae
|
| LENI7 | Leskea nigrescens Kindb. | Leskeella nervosa | Leskeaceae
|
| LEOB9 | Leskea obscura Hedw. | leskea moss | Leskeaceae
|
| LEPOP | Leskea polycarpa Hedw. var. paludosa (Hedw.) Schimp. | Leskea polycarpa | Leskeaceae
|
| LEPO14 | Leskea polycarpa Hedw. | leskea moss | Leskeaceae
|
| LETEF | Leskea tectorum (Funck ex Brid.) Lindb. var. flagellifera Best | Pseudoleskeella tectorum | Leskeaceae
|
| LETE22 | Leskea tectorum (Funck ex Brid.) Lindb. | Pseudoleskeella tectorum | Leskeaceae
|
| LEWIF | Leskea williamsii Best var. filamentosa Best | Pseudoleskeella tectorum | Leskeaceae
|
| LEWI4 | Leskea williamsii Best | Pseudoleskeella tectorum | Leskeaceae
|
| LESKE | Leskea Hedw. | leskea moss | Leskeaceae
|
| LEAR28 | Leskeella arizonae (Williams) Flow. | Lescuraea arizonae | Leskeaceae
|
| LENES2 | Leskeella nervosa (Brid.) Loeske var. subrigidula (Kindb.) Podp. | Leskeella nervosa | Leskeaceae
|
| LENE15 | Leskeella nervosa (Brid.) Loeske | leskeella | Leskeaceae
|
| LETEC2 | Leskeella tectorum (Funck ex Brid.) Hag. ssp. cyrtophylla (Kindb. in Mac. & Kindb.) Wijk & Marg. | Pseudoleskeella tectorum | Leskeaceae
|
| LETE23 | Leskeella tectorum (Funck ex Brid.) Hag. | Pseudoleskeella tectorum | Leskeaceae
|
| LESKE2 | Leskeella (Limpr.) Loeske | leskeella | Leskeaceae
|
| LEAC | Lespedeza �acuticarpa Mackenzie & Bush (pro sp.) | | Fabaceae
|
| LEANB | Lespedeza angustifolia (Pursh) Ell. var. brevifolia Britt. | Lespedeza angustifolia | Fabaceae
|
| LEAN | Lespedeza angustifolia (Pursh) Ell. | narrowleaf lespedeza | Fabaceae
|
| LEBI5 | Lespedeza bicknellii House | Lespedeza capitata | Fabaceae
|
| LEBI2 | Lespedeza bicolor Turcz. | shrubby lespedeza | Fabaceae
|
| LEBR2 | Lespedeza �brittonii Bickn. (pro sp.) | | Fabaceae
|
| LECAC3 | Lespedeza capitata Michx. var. calycina (Schindl.) Fern. | Lespedeza hirta ssp. hirta | Fabaceae
|
| LECAS | Lespedeza capitata Michx. var. stenophylla Bissell & Fern. | Lespedeza capitata | Fabaceae
|
| LECAV2 | Lespedeza capitata Michx. var. velutina (Bickn.) Fern. | Lespedeza capitata | Fabaceae
|
| LECAV4 | Lespedeza capitata Michx. var. vulgaris Torr. & Gray | Lespedeza capitata | Fabaceae
|
| LECA8 | Lespedeza capitata Michx. | roundhead lespedeza | Fabaceae
|
| LECU | Lespedeza cuneata (Dum.-Cours.) G. Don | Chinese lespedeza | Fabaceae
|
| LECY80 | Lespedeza cyrtobotrya Miq. | leafy lespedeza | Fabaceae
|
| LECY3 | Lespedeza cytisoides Bertol. | Rhynchosia cytisoides | Fabaceae
|