| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LAGER | Lagerstroemia L. | lagerstroemia | Lythraceae
|
| LALA12 | Lagetta lagetto (Sw.) Nash | lacebark | Thymelaeaceae
|
| LALI5 | Lagetta lintearia Lam. | Lagetta lagetto | Thymelaeaceae
|
| LAGET | Lagetta A. L. Juss. | lagetta | Thymelaeaceae
|
| LACO | Lagophylla congesta Greene | Lagophylla ramosissima ssp. congesta | Asteraceae
|
| LADI | Lagophylla dichotoma Benth. | forked hareleaf | Asteraceae
|
| LAGLS | Lagophylla glandulosa Gray ssp. serrata (Greene) Keck | Lagophylla glandulosa | Asteraceae
|
| LAGL | Lagophylla glandulosa Gray | glandular hareleaf | Asteraceae
|
| LAMI | Lagophylla minor (Keck) Keck | lesser hareleaf | Asteraceae
|
| LARAC | Lagophylla ramosissima Nutt. ssp. congesta (Greene) Keck | branched lagophylla | Asteraceae
|
| LARAR | Lagophylla ramosissima Nutt. ssp. ramosissima | branched lagophylla | Asteraceae
|
| LARA | Lagophylla ramosissima Nutt. | branched lagophylla | Asteraceae
|
| LASC4 | Lagophylla scabrella (E. Drew) M.E. Jones | Calycadenia truncata ssp. scabrella | Asteraceae
|
| LAGOP | Lagophylla Nutt. | hareleaf | Asteraceae
|
| LAGLM | Lagotis glauca Gaertn. ssp. minor (Willd.) Hult�n | Lagotis minor | Scrophulariaceae
|
| LAGLS2 | Lagotis glauca Gaertn. var. stelleri (Cham. & Schlecht.) Trautv. | Lagotis minor | Scrophulariaceae
|
| LAGL2 | Lagotis glauca Gaertn. | weaselsnout | Scrophulariaceae
|
| LAMI6 | Lagotis minor (Willd.) Standl. | little weaselsnout | Scrophulariaceae
|
| LAST6 | Lagotis stelleri (Cham. & Schlecht.) Raup | Lagotis minor | Scrophulariaceae
|
| LAGOT | Lagotis Gaertn. | lagotis | Scrophulariaceae
|
| LAPA16 | Lagunaria patersonii (Andrews) G. Don | cow itch tree | Bombacaceae
|
| LAGUN3 | Lagunaria (DC.) Rchb. | cow itch tree | Bombacaceae
|
| LARA2 | Laguncularia racemosa (L.) Gaertn. f. | white mangrove | Combretaceae
|
| LAGUN2 | Laguncularia Gaertn. f. | laguncularia | Combretaceae
|
| LACY2 | Lagurus cylindricus L. | Imperata cylindrica | Poaceae
|
| LAOV | Lagurus ovatus L. | harestail grass | Poaceae
|
| LAGUR | Lagurus L. | harestail grass | Poaceae
|
| LAFU2 | Lahmia fueistingii Korber | Arthrorhaphis grisea | Arthrorhaphidaceae
|
| LAPE3 | Lallemantia peltata (L.) Fisch. & C.A. Mey. | lion's heart | Lamiaceae
|
| LALLE | Lallemantia Fisch. & C.A. Mey. | lallemantia | Lamiaceae
|
| LAAU | Lamarckia aurea (L.) Moench | goldentop grass | Poaceae
|
| LATE4 | Lamarckia tenella DC. | Aegopogon tenellus | Poaceae
|
| LAMAR | Lamarckia Moench | goldentop grass | Poaceae
|
| LAGA2 | Lamiastrum galeobdolon (L.) Ehrend. & Polatschek | yellow archangel | Lamiaceae
|
| LAMIA | Lamiastrum Heister ex Fabr. | lamiastrum | Lamiaceae
|
| LAAL | Lamium album L. | white deadnettle | Lamiaceae
|
| LAAMA | Lamium amplexicaule L. var. album A.L. & M.C. Pickens | Lamium amplexicaule | Lamiaceae
|
| LAAM | Lamium amplexicaule L. | henbit deadnettle | Lamiaceae
|
| LAGA4 | Lamium galeobdolon (L.) L. | Lamiastrum galeobdolon | Lamiaceae
|
| LAHY2 | Lamium hybridum auct. non Vill. | Lamium purpureum var. incisum | Lamiaceae
|
| LAMA | Lamium maculatum L. | spotted henbit | Lamiaceae
|
| LAPUI | Lamium purpureum L. var. incisum (Willd.) Pers. | purple deadnettle | Lamiaceae
|
| LAPUP | Lamium purpureum L. var. purpureum | purple deadnettle | Lamiaceae
|
| LAPU2 | Lamium purpureum L. | purple deadnettle | Lamiaceae
|
| LAMIU | Lamium L. | deadnettle | Lamiaceae
|
| LACO5 | Lampranthus coccineus (Haw.) N.E. Br. | redflush | Aizoaceae
|
| LARO3 | Lampranthus roseus (Willd.) Schwantes | | Aizoaceae
|
| LAVR | Lampranthus vredenbergensis L. Bolus | Vredenberg ice plant | Aizoaceae
|
| LAMPR | Lampranthus N.E. Br. | lampranthus | Aizoaceae
|
| LASP8 | Lamprocapnos spectabilis (L.) Fukuhara | bleeding heart | Fumariaceae
|
| LAMPR2 | Lamprocapnos Endl. | bleeding heart | Fumariaceae
|
| LADR | Landolphia droogmansiana De Wild. | Landolphia owariensis | Apocynaceae
|
| LAHE6 | Landolphia heudelotii A. DC. | landolphia rubber | Apocynaceae
|
| LAKI2 | Landolphia kirkii Dyer | Kirk's landolphia | Apocynaceae
|
| LAKL | Landolphia klainii Pierre | Landolphia mannii | Apocynaceae
|
| LAMA12 | Landolphia mannii Dyer ex Dewevre | Mann's landolphia | Apocynaceae
|
| LAOW | Landolphia owariensis P. Beauv. | white rubber vine | Apocynaceae
|
| LASE8 | Landolphia senegalensis (A. DC.) Kotschy & Peyr. | Saba senegalensis | Apocynaceae
|
| LAST10 | Landolphia stolzii Busse | Landolphia owariensis | Apocynaceae
|
| LANDO | Landolphia P. Beauv. | landolphia | Apocynaceae
|
| LAFL3 | Langloisia flaviflora A. Davids. | Loeseliastrum schottii | Polemoniaceae
|
| LALA8 | Langloisia lanata Brand | Langloisia setosissima ssp. punctata | Polemoniaceae
|
| LAMA5 | Langloisia matthewsii (Gray) Greene | Loeseliastrum matthewsii | Polemoniaceae
|
| LAPU5 | Langloisia punctata (Gray ex Coville) Goodding | Langloisia setosissima ssp. punctata | Polemoniaceae
|
| LASC | Langloisia schottii (Torr.) Greene | Loeseliastrum schottii | Polemoniaceae
|
| LASEP | Langloisia setosissima (Torr. & Gray ex Torr.) Greene ssp. punctata (Gray ex Coville) Timbrook | Great Basin langloisia | Polemoniaceae
|
| LASES | Langloisia setosissima (Torr. & Gray ex Torr.) Greene ssp. setosissima | Great Basin langloisia | Polemoniaceae
|
| LASEC | Langloisia setosissima (Torr. & Gray ex Torr.) Greene var. campyloclados Brand | Langloisia setosissima ssp. setosissima | Polemoniaceae
|
| LASE3 | Langloisia setosissima (Torr. & Gray ex Torr.) Greene | Great Basin langloisia | Polemoniaceae
|
| LANGL | Langloisia Greene | langloisia | Polemoniaceae
|
| LAGA5 | Languas galanga (L.) Stuntz | Alpinia galanga | Zingiberaceae
|
| LAOF | Languas officinarum (Hance) Farw. | Alpinia officinarum | Zingiberaceae
|
| LASP7 | Languas speciosa (Wendl.) Merr. | Alpinia zerumbet | Zingiberaceae
|
| LADO2 | Lansium domesticum Correa | langsat | Meliaceae
|
| LANSI | Lansium Correa | lansium | Meliaceae
|
| LAAC | Lantana achyranthifolia Desf. | brushland shrubverbena | Verbenaceae
|
| LAAC3 | Lantana aculeata L. | Lantana camara | Verbenaceae
|
| LAAL3 | Lantana alba P. Mill. | Lippia alba | Verbenaceae
|
| LAAR4 | Lantana arida Britt. | Lantana urticifolia ssp. urticifolia | Verbenaceae
|
| LABAF | Lantana bahamensis Britt. var. floridana Moldenke | Lantana depressa var. floridana | Verbenaceae
|
| LABA2 | Lantana bahamensis auct. non Britt. | Lantana depressa var. floridana | Verbenaceae
|
| LACAA | Lantana camara L. var. aculeata (L.) Moldenke | Lantana camara | Verbenaceae
|
| LACAF | Lantana camara L. var. flava (Medik.) Moldenke | Lantana camara | Verbenaceae
|
| LACAH | Lantana camara L. var. hybrida (Neubert) Moldenke | Lantana camara | Verbenaceae
|
| LACAM | Lantana camara L. var. mista (L.) Bailey | Lantana camara | Verbenaceae
|
| LACAM2 | Lantana camara L. var. mutabilis (Hook.) Bailey | Lantana camara | Verbenaceae
|
| LACAN | Lantana camara L. var. nivea (Vent.) Bailey | Lantana camara | Verbenaceae
|
| LACAS | Lantana camara L. var. sanguinea (Medik.) Bailey | Lantana camara | Verbenaceae
|
| LACA2 | Lantana camara L. | lantana | Verbenaceae
|
| LACA8 | Lantana canescens Kunth | hammock shrubverbena | Verbenaceae
|
| LADED | Lantana depressa Small var. depressa | depressed shrubverbena | Verbenaceae
|
| LADEF | Lantana depressa Small var. floridana (Moldenke) R.W. Sanders | Florida shrubverbena | Verbenaceae
|
| LADES2 | Lantana depressa Small var. sanibelensis R.W. Sanders | Sanibel shrubverbena | Verbenaceae
|
| LADE | Lantana depressa Small | depressed shrubverbena | Verbenaceae
|
| LAEX | Lantana exarata Urban & Ekman | Caribbean shrubverbena | Verbenaceae
|
| LAFR3 | Lantana frutilla Moldenke | Lantana velutina | Verbenaceae
|
| LAFUA | Lantana fucata Lindl. var. antillana Moldenke | Lantana reticulata | Verbenaceae
|
| LAGL7 | Lantana glandulosissima Hayek | Lantana urticifolia ssp. urticifolia | Verbenaceae
|
| LAHI7 | Lantana hirta auct. non Graham | Lantana velutina | Verbenaceae
|
| LAHI8 | Lantana hispida auct. non Kunth | Lantana urticoides | Verbenaceae
|
| LAHOL | Lantana horrida Kunth var. latibracteata Moldenke | Lantana urticoides | Verbenaceae
|