| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LAGR8 | Lacinaria gracilis (Pursh) Kuntze | Liatris gracilis | Asteraceae
|
| LAGR7 | Lacinaria graminifolia (Willd.) Kuntze | Liatris pilosa var. pilosa | Asteraceae
|
| LAHE5 | Lacinaria helleri (Porter) Porter ex Heller | Liatris helleri | Asteraceae
|
| LALA10 | Lacinaria lancifolia Greene | Liatris lancifolia | Asteraceae
|
| LALA9 | Lacinaria laxa Small | Liatris gracilis | Asteraceae
|
| LALI3 | Lacinaria ligulistylis A. Nels. | Liatris ligulistylis | Asteraceae
|
| LAMI8 | Lacinaria microcephala Small | Liatris microcephala | Asteraceae
|
| LANA | Lacinaria nashii Small | Liatris garberi | Asteraceae
|
| LAPA10 | Lacinaria pauciflora (Pursh) Kuntze | Liatris pauciflora | Asteraceae
|
| LAPI | Lacinaria pilosa (Ait.) Heller | Liatris pilosa var. pilosa | Asteraceae
|
| LAPI2 | Lacinaria pilosa auct. non (Ait.) Heller | Liatris turgida | Asteraceae
|
| LAPU8 | Lacinaria punctata (Hook.) Kuntze | Liatris punctata var. punctata | Asteraceae
|
| LAPY | Lacinaria pycnostachya (Michx.) Kuntze | Liatris pycnostachya var. pycnostachya | Asteraceae
|
| LARE4 | Lacinaria regimontis Small as to type | Liatris virgata | Asteraceae
|
| LARU2 | Lacinaria ruthii Alexander | Liatris squarrulosa | Asteraceae
|
| LASCN | Lacinaria scariosa (L.) Hill var. nieuwlandii Lunell | Liatris scariosa var. nieuwlandii | Asteraceae
|
| LASC5 | Lacinaria scariosa (L.) Hill | Liatris scariosa var. scariosa | Asteraceae
|
| LASE6 | Lacinaria secunda (Ell.) Small | Liatris secunda | Asteraceae
|
| LASH | Lacinaria shortii Alexander | Liatris squarrulosa | Asteraceae
|
| LASM | Lacinaria smallii Britt. | Liatris virgata | Asteraceae
|
| LASP5 | Lacinaria spicata (L.) Kuntze | Liatris spicata var. spicata | Asteraceae
|
| LASQI | Lacinaria squarrosa (L.) Hill var. intermedia (Lunell) DC. | Liatris aspera var. intermedia | Asteraceae
|
| LASQ2 | Lacinaria squarrosa (L.) Hill | Liatris squarrosa var. squarrosa | Asteraceae
|
| LATE2 | Lacinaria tenuifolia (Nutt.) Kuntze | Liatris tenuifolia var. tenuifolia | Asteraceae
|
| LATR7 | Lacinaria tracyi Alexander | Liatris squarrulosa | Asteraceae
|
| LABI | Lactuca biennis (Moench) Fern. | tall blue lettuce | Asteraceae
|
| LACAT2 | Lactuca campestris Greene var. typica Wieg. | Lactuca ludoviciana | Asteraceae
|
| LACA6 | Lactuca campestris Greene | Lactuca ludoviciana | Asteraceae
|
| LACAI | Lactuca canadensis L. var. integrifolia (Bigelow) Torr. & Gray | Lactuca canadensis | Asteraceae
|
| LACAL | Lactuca canadensis L. var. latifolia Kuntze | Lactuca canadensis | Asteraceae
|
| LACAL2 | Lactuca canadensis L. var. longifolia (Michx.) Farw. | Lactuca canadensis | Asteraceae
|
| LACAO | Lactuca canadensis L. var. obovata Wieg. | Lactuca canadensis | Asteraceae
|
| LACAT | Lactuca canadensis L. var. typica Wieg. | Lactuca canadensis | Asteraceae
|
| LACA | Lactuca canadensis L. | Canada lettuce | Asteraceae
|
| LAFLF | Lactuca floridana (L.) Gaertn. var. floridana | woodland lettuce | Asteraceae
|
| LAFLV | Lactuca floridana (L.) Gaertn. var. villosa (Jacq.) Cronq. | woodland lettuce | Asteraceae
|
| LAFL | Lactuca floridana (L.) Gaertn. | woodland lettuce | Asteraceae
|
| LAGRA | Lactuca graminifolia Michx. var. arizonica McVaugh | grassleaf lettuce | Asteraceae
|
| LAGRG | Lactuca graminifolia Michx. var. graminifolia | grassleaf lettuce | Asteraceae
|
| LAGR | Lactuca graminifolia Michx. | grassleaf lettuce | Asteraceae
|
| LAHIA | Lactuca hirsuta Muhl. ex Nutt. var. albiflora (Torr. & Gray) Shinners | hairy lettuce | Asteraceae
|
| LAHIH3 | Lactuca hirsuta Muhl. ex Nutt. var. hirsuta | hairy lettuce | Asteraceae
|
| LAHIS2 | Lactuca hirsuta Muhl. ex Nutt. var. sanguinea (Bigelow) Fern. | hairy lettuce | Asteraceae
|
| LAHI | Lactuca hirsuta Muhl. ex Nutt. | hairy lettuce | Asteraceae
|
| LAIN13 | Lactuca indica L. | Indian lettuce | Asteraceae
|
| LAIN8 | Lactuca intybacea Jacq. | Launaea intybacea | Asteraceae
|
| LALU | Lactuca ludoviciana (Nutt.) Riddell | biannual lettuce | Asteraceae
|
| LAMO4 | Lactuca �morssii B.L. Robins. (pro sp.) | | Asteraceae
|
| LAMU | Lactuca muralis (L.) Fresen. | Mycelis muralis | Asteraceae
|
| LAOB2 | Lactuca oblongifolia Nutt. | Lactuca tatarica var. pulchella | Asteraceae
|
| LAPU | Lactuca pulchella (Pursh) DC. | Lactuca tatarica var. pulchella | Asteraceae
|
| LASA4 | Lactuca sagittifolia Ell. | Lactuca canadensis | Asteraceae
|
| LASAR | Lactuca saligna L. var. runcinata Gren. & Godr. | Lactuca saligna | Asteraceae
|
| LASA | Lactuca saligna L. | willowleaf lettuce | Asteraceae
|
| LASA3 | Lactuca sativa L. | garden lettuce | Asteraceae
|
| LASCI | Lactuca scariola L. var. integrata Gren. & Godr. | Lactuca sativa | Asteraceae
|
| LASCI2 | Lactuca scariola L. var. integrifolia (Bogenh.) G. Beck | Lactuca sativa | Asteraceae
|
| LASC6 | Lactuca scariola L. | Lactuca serriola | Asteraceae
|
| LASE | Lactuca serriola L. | prickly lettuce | Asteraceae
|
| LASPI | Lactuca spicata (Lam.) A.S. Hitchc. var. integrifolia (Torr. & Gray) Britt. | Lactuca biennis | Asteraceae
|
| LASP4 | Lactuca spicata auct. non (Lam.) A.S. Hitchc. | Lactuca biennis | Asteraceae
|
| LAST8 | Lactuca steelei Britt. | Lactuca canadensis | Asteraceae
|
| LAST3 | Lactuca stolonifera (Gray) Maxim. | Ixeris stolonifera | Asteraceae
|
| LATAP2 | Lactuca tatarica (L.) C.A. Mey. ssp. pulchella (Pursh) Stebbins | Lactuca tatarica var. pulchella | Asteraceae
|
| LATAH | Lactuca tatarica (L.) C.A. Mey. var. heterophylla (Nutt.) Boivin | Lactuca tatarica var. pulchella | Asteraceae
|
| LATAP | Lactuca tatarica (L.) C.A. Mey. var. pulchella (Pursh) Breitung | blue lettuce | Asteraceae
|
| LATA | Lactuca tatarica (L.) C.A. Mey. | blue lettuce | Asteraceae
|
| LAVI4 | Lactuca villosa Jacq. | Lactuca floridana var. villosa | Asteraceae
|
| LAVI8 | Lactuca virosa L. | bitter lettuce | Asteraceae
|
| LACTU | Lactuca L. | lettuce | Asteraceae
|
| LAHA3 | Laelia harpophylla Rchb. F. | | Orchidaceae
|
| LAELI2 | Laelia Adans. | laelia | Orchidaceae
|
| LADO | Laeliopsis domingensis (Lindl.) Lindl. | Broughtonia domingensis | Orchidaceae
|
| LACO13 | Laennecia coulteri (Gray) Nesom | conyza | Asteraceae
|
| LAER | Laennecia eriophylla (Gray) Nesom | Cochise marshtail | Asteraceae
|
| LAFI | Laennecia filaginoides (DC.) Nesom | Transpecos marshtail | Asteraceae
|
| LASC3 | Laennecia schiedeana (Less.) Nesom | pineland marshtail | Asteraceae
|
| LASO2 | Laennecia sophiifolia (Kunth) Nesom | leafy marshtail | Asteraceae
|
| LAENN | Laennecia Cass. | laennicia | Asteraceae
|
| LAPR2 | Laetia procera (Poepp.) Eichl. | cuero de rana | Flacourtiaceae
|
| LAETI | Laetia Loefl. ex L. | laetia | Flacourtiaceae
|
| LAPE5 | Laeviomyces pertusariicola (Nyl.) D. Hawksw. | | Uncertain Lichen Family
|
| LAEVI | Laeviomyces D. Hawksw. | laeviomyces | Uncertain Lichen Family
|
| LAMA15 | Lagarosiphon major (Ridley) Moss | oxygen-weed | Hydrocharitaceae
|
| LAGAR | Lagarosiphon Harvey | oxygen-weed | Hydrocharitaceae
|
| LADE7 | Lagascea decipiens Hemsl. | doll's head | Asteraceae
|
| LAMO5 | Lagascea mollis Cav. | silkleaf | Asteraceae
|
| LAGAS | Lagascea Cav. | lagascea | Asteraceae
|
| LALE5 | Lagenaria leucantha Rusby | Lagenaria siceraria | Cucurbitaceae
|
| LASI | Lagenaria siceraria (Molina) Standl. | bottle gourd | Cucurbitaceae
|
| LAVU2 | Lagenaria vulgaris Ser. | Lagenaria siceraria | Cucurbitaceae
|
| LAGEN | Lagenaria Ser. | lagenaria | Cucurbitaceae
|
| LAER2 | Lagenifera erici Forbes | Alakai Swamp island-daisy | Asteraceae
|
| LAHE4 | Lagenifera helenae Forbes & Lydgate | Mt. Waialeale island-daisy | Asteraceae
|
| LAMA7 | Lagenifera maviensis Mann | Howaiaulu island-daisy | Asteraceae
|
| LAGEN3 | Lagenifera Cass. | island-daisy | Asteraceae
|
| LAGU | Lagenocarpus guianensis Lindl. & Nees | burr sedge | Cyperaceae
|
| LAPO5 | Lagenocarpus portoricensis Britt. | Lagenocarpus guianensis | Cyperaceae
|
| LAGEN2 | Lagenocarpus Nees | lagenocarpus | Cyperaceae
|
| LAVI6 | Lagenophora viridis St. John | Lagenifera maviensis | Asteraceae
|
| LAIN | Lagerstroemia indica L. | crapemyrtle | Lythraceae
|