| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LUAL | Ludwigia alata Ell. | winged primrose-willow | Onagraceae
|
| LUALL | Ludwigia alternifolia L. var. linearifolia Britt. | Ludwigia alternifolia | Onagraceae
|
| LUALP | Ludwigia alternifolia L. var. pubescens Palmer & Steyermark | Ludwigia alternifolia | Onagraceae
|
| LUALT | Ludwigia alternifolia L. var. typica Munz | Ludwigia alternifolia | Onagraceae
|
| LUAL2 | Ludwigia alternifolia L. | seedbox | Onagraceae
|
| LUAR8 | Ludwigia arcuata Walt. | piedmont primrose-willow | Onagraceae
|
| LUBO | Ludwigia bonariensis (M. Micheli) Hara | Carolina primrose-willow | Onagraceae
|
| LUBR | Ludwigia brevipes (B.H. Long ex Britt., A. Braun & Small) Eames | Long Beach primrose-willow | Onagraceae
|
| LUCU4 | Ludwigia curtissii Chapman | Curtiss' primrose-willow | Onagraceae
|
| LUCYB | Ludwigia cylindrica Ell. var. brachycarpa Torr. & Gray | Ludwigia glandulosa ssp. brachycarpa | Onagraceae
|
| LUDE4 | Ludwigia decurrens Walt. | wingleaf primrose-willow | Onagraceae
|
| LUER | Ludwigia erecta (L.) Hara | yerba de jicotea | Onagraceae
|
| LUGLB | Ludwigia glandulosa Walt. ssp. brachycarpa (Torr. & Gray) Peng | cylindricfruit primrose-willow | Onagraceae
|
| LUGLG2 | Ludwigia glandulosa Walt. ssp. glandulosa | cylindricfruit primrose-willow | Onagraceae
|
| LUGLT | Ludwigia glandulosa Walt. var. torreyi Munz | Ludwigia glandulosa ssp. glandulosa | Onagraceae
|
| LUGLT2 | Ludwigia glandulosa Walt. var. typica Munz | Ludwigia glandulosa ssp. glandulosa | Onagraceae
|
| LUGL | Ludwigia glandulosa Walt. | cylindricfruit primrose-willow | Onagraceae
|
| LUGR9 | Ludwigia grandiflora (M. Micheli) Greuter & Burdet | Ludwigia uruguayensis | Onagraceae
|
| LUHE5 | Ludwigia hexapetala (Hook. & Arn.) Zardini, Gu & Raven | Ludwigia uruguayensis | Onagraceae
|
| LUHI | Ludwigia hirtella Raf. | spindleroot | Onagraceae
|
| LUHY6 | Ludwigia hyssopifolia (G. Don) Exell apud A.R. Fernandes | seedbox | Onagraceae
|
| LULA5 | Ludwigia �lacustris Eames (pro sp.) | | Onagraceae
|
| LULA6 | Ludwigia lanceolata Ell. | lanceleaf primrose-willow | Onagraceae
|
| LULEM4 | Ludwigia leptocarpa (Nutt.) Hara var. meyeriana (Kuntze) Alain | Ludwigia leptocarpa | Onagraceae
|
| LULE4 | Ludwigia leptocarpa (Nutt.) Hara | anglestem primrose-willow | Onagraceae
|
| LULIP | Ludwigia linearis Walt. var. puberula Engelm. & Gray | Ludwigia linearis | Onagraceae
|
| LULI | Ludwigia linearis Walt. | narrowleaf primrose-willow | Onagraceae
|
| LULI3 | Ludwigia linifolia Poir. | southeastern primrose-willow | Onagraceae
|
| LULO2 | Ludwigia longifolia (DC.) Hara | longleaf primrose-willow | Onagraceae
|
| LUMA4 | Ludwigia maritima Harper | seaside primrose-willow | Onagraceae
|
| LUMI4 | Ludwigia microcarpa Michx. | smallfruit primrose-willow | Onagraceae
|
| LUNAS2 | Ludwigia natans Ell. var. stipitata Fern. & Grisc. | Ludwigia repens | Onagraceae
|
| LUNA4 | Ludwigia natans Ell. | Ludwigia repens | Onagraceae
|
| LUOCO | Ludwigia octovalvis (Jacq.) Raven ssp. octovalvis | Mexican primrose-willow | Onagraceae
|
| LUOCS | Ludwigia octovalvis (Jacq.) Raven ssp. sessiliflora (M. Micheli) Raven | Mexican primrose-willow | Onagraceae
|
| LUOCL | Ludwigia octovalvis (Jacq.) Raven var. ligustrifolia (Kunth) Alain | Ludwigia octovalvis ssp. octovalvis | Onagraceae
|
| LUOCM | Ludwigia octovalvis (Jacq.) Raven var. macropoda (K. Presl) Shinners | Ludwigia octovalvis ssp. octovalvis | Onagraceae
|
| LUOCO2 | Ludwigia octovalvis (Jacq.) Raven var. octofila (DC.) Alain | Ludwigia octovalvis ssp. octovalvis | Onagraceae
|
| LUOCS2 | Ludwigia octovalvis (Jacq.) Raven var. sessiliflora (M. Micheli) Shinners | Ludwigia octovalvis ssp. sessiliflora | Onagraceae
|
| LUOC | Ludwigia octovalvis (Jacq.) Raven | Mexican primrose-willow | Onagraceae
|
| LUPAA2 | Ludwigia palustris (L.) Ell. var. americana (DC.) Fern. & Grisc. | Ludwigia palustris | Onagraceae
|
| LUPAN | Ludwigia palustris (L.) Ell. var. nana Fern. & Grisc. | Ludwigia palustris | Onagraceae
|
| LUPAP3 | Ludwigia palustris (L.) Ell. var. pacifica Fern. & Grisc. | Ludwigia palustris | Onagraceae
|
| LUPA | Ludwigia palustris (L.) Ell. | marsh seedbox | Onagraceae
|
| LUPEG2 | Ludwigia peploides (Kunth) Raven ssp. glabrescens (Kuntze) Raven | floating primrose-willow | Onagraceae
|
| LUPEM | Ludwigia peploides (Kunth) Raven ssp. montevidensis (Spreng.) Raven | floating primrose-willow | Onagraceae
|
| LUPEP2 | Ludwigia peploides (Kunth) Raven ssp. peploides | floating primrose-willow | Onagraceae
|
| LUPEG4 | Ludwigia peploides (Kunth) Raven var. glabrescens (Kuntze) Shinners | Ludwigia peploides ssp. glabrescens | Onagraceae
|
| LUPEM2 | Ludwigia peploides (Kunth) Raven var. montevidensis (Spreng.) Shinners | Ludwigia peploides ssp. montevidensis | Onagraceae
|
| LUPE5 | Ludwigia peploides (Kunth) Raven | floating primrose-willow | Onagraceae
|
| LUPE6 | Ludwigia peruviana (L.) Hara | Peruvian primrose-willow | Onagraceae
|
| LUPI | Ludwigia pilosa Walt. | hairy primrose-willow | Onagraceae
|
| LUPO | Ludwigia polycarpa Short & Peter | manyfruit primrose-willow | Onagraceae
|
| LURA | Ludwigia ravenii Peng | Raven's primrose-willow | Onagraceae
|
| LURER | Ludwigia repens J.R. Forst. var. rotundata (Griseb.) Gomes | Ludwigia repens | Onagraceae
|
| LURES | Ludwigia repens J.R. Forst. var. stipitata (Fern. & Grisc.) Munz | Ludwigia repens | Onagraceae
|
| LURE2 | Ludwigia repens J.R. Forst. | creeping primrose-willow | Onagraceae
|
| LUSI3 | Ludwigia simpsonii Chapman | Simpson's primrose-willow | Onagraceae
|
| LUSI7 | Ludwigia simulata Small | Ludwigia alata | Onagraceae
|
| LUSP5 | Ludwigia spathulata Torr. & Gray | spoon primrose-willow | Onagraceae
|
| LUSP7 | Ludwigia spathulifolia Small | Ludwigia curtissii | Onagraceae
|
| LUSPD | Ludwigia sphaerocarpa Ell. var. deamii Fern. & Grisc. | Ludwigia sphaerocarpa | Onagraceae
|
| LUSPJ | Ludwigia sphaerocarpa Ell. var. jungens Fern. & Grisc. | Ludwigia sphaerocarpa | Onagraceae
|
| LUSPM2 | Ludwigia sphaerocarpa Ell. var. macrocarpa Fern. & Grisc. | Ludwigia sphaerocarpa | Onagraceae
|
| LUSP | Ludwigia sphaerocarpa Ell. | globefruit primrose-willow | Onagraceae
|
| LUSU11 | Ludwigia suffruticosa Walt. | shrubby primrose-willow | Onagraceae
|
| LUURM | Ludwigia uruguayensis (Camb.) Hara var. ?major (Hassler) Munz | Ludwigia uruguayensis | Onagraceae
|
| LUUR | Ludwigia uruguayensis (Camb.) Hara | Uruguayan primrose-willow | Onagraceae
|
| LUVI2 | Ludwigia virgata Michx. | savannah primrose-willow | Onagraceae
|
| LUDWI | Ludwigia L. | primrose-willow | Onagraceae
|
| LUAR15 | Ludwigiantha arcuata (Walt.) Small | Ludwigia arcuata | Onagraceae
|
| LUBR8 | Ludwigiantha brevipes B.H. Long ex Britt., A. Braun & Small | Ludwigia brevipes | Onagraceae
|
| LUSP11 | Luehea speciosa Willd. | | Tiliaceae
|
| LUEHE | Luehea Willd. | luehea | Tiliaceae
|
| LUPE | Luetkea pectinata (Pursh) Kuntze | partridgefoot | Rosaceae
|
| LUETK | Luetkea Bong. | luetkea | Rosaceae
|
| LUAC2 | Luffa acutangula (L.) Roxb. | sinkwa towelsponge | Cucurbitaceae
|
| LUAE | Luffa aegyptiaca P. Mill. | sponge gourd | Cucurbitaceae
|
| LUCY | Luffa cylindrica (L.) M. Roemer | Luffa aegyptiaca | Cucurbitaceae
|
| LUOP | Luffa operculata (L.) Cogn. | luffa | Cucurbitaceae
|
| LUFFA | Luffa P. Mill. | luffa | Cucurbitaceae
|
| LUHY | Luina hypoleuca Benth. | littleleaf silverback | Asteraceae
|
| LUNAG | Luina nardosmia (Gray) Cronq. var. glabrata (Piper) Cronq. | Cacaliopsis nardosmia | Asteraceae
|
| LUNA5 | Luina nardosmia (Gray) Cronq. | Cacaliopsis nardosmia | Asteraceae
|
| LUSE | Luina serpentina Cronq. | creeping silverback | Asteraceae
|
| LUST9 | Luina stricta (Greene) B.L. Robins. | Rainiera stricta | Asteraceae
|
| LUINA | Luina Benth. | silverback | Asteraceae
|
| LUBA4 | Luisierella barbula (Schwaegr.) Steere | luisierella moss | Pottiaceae
|
| LUISI | Luisierella Th�r. & P. Varde in P. Varde | luisierella moss | Pottiaceae
|
| LUAP4 | Luma apiculata (DC.) Burret | Eugenia apiculata | Myrtaceae
|
| LULI8 | Lumnitzera littorea Voigt | | Combretaceae
|
| LUMNI | Lumnitzera Wild. | | Combretaceae
|
| LUBU3 | Lunania buchii Urban | Lunania ekmanii | Flacourtiaceae
|
| LUEK | Lunania ekmanii Urban | mendrina | Flacourtiaceae
|
| LUNAN | Lunania Hook. | lunania | Flacourtiaceae
|
| LUAN | Lunaria annua L. | annual honesty | Brassicaceae
|
| LURE | Lunaria rediviva L. | perennial honesty | Brassicaceae
|
| LUNAR | Lunaria L. | lunaria | Brassicaceae
|
| LUCR5 | Lunularia cruciata (L.) Dumort. | | Lunulariaceae
|
| LUNUL | Lunularia Adans. | | Lunulariaceae
|
| LUMA12 | Lupinaster macrocephalus Pursh | Trifolium macrocephalum | Fabaceae
|