| Commercially exploited |
|---|
| Lycopodium cernuum | Nodding clubmoss |
| Osmunda cinnamomea | Cinnamon fern |
| Osmunda regalis | Royal fern |
| Threatened |
|---|
| Lechea cernua | Nodding (=drooping; =scrub) pinweed |
| Leitneria floridana | Florida corkwood |
| Lilium catesbaei | Catesby's lily |
| Listera australis | Southern twayblade |
| Lobelia cardinalis | Cardinal flower |
| Lupinus westianus | Gulfcoast (=panhandle) lupine |
| Malus angustifolia | Crabapple |
| Matela gonocarpos | Anglepod (unnamed) |
| Myrcianthes fragrans (=Eugenia simpsonii) | Simpson's ironwood; Simpson's stopper |
| Najas filifolia | Slender naiad |
| Nephrolepis biserrata | Giant sword fern |
| Nolina atopocarpa | Florida beargrass |
| Opuntia stricta | Shell mound prickly pear cactus |
| Endangered |
|---|
| Lantana depressa | Pineland lantana |
| Lechea divaricata | Pine (=spreading) pinweed |
| Lechea lakelae | Lakela's pinweed |
| Leochilus labiatus | Lipped orchid |
| Lepanthopsis melanantha | Harris' tiny orchid |
| Lepuropetalon spathulatum | Little people |
| Liatris ohlingerae | Florida gayfeather; scrub blazing star |
| Liatris provincialis | Godfrey's gayfeather |
| Licaria triandra | Gulf licaria |
| Lilium iridollae | Panhandle lily |
| Lindera melissifolia | Swamp spicebush; Jove's fruit; pondberry |
| Lindera subcoriacea | Bog spicebush |
| Linum arenicola | Sand flax |
| Linum carteri | South Florida (=Everglades) flax |
| Linum westii | West's flax |
| Liparis nervosa | Tall twayblade |
| Litsea aestivalis | Pond spice; pond bush |
| Lomariopsis kunzeana | Climbing holly fern |
| Lupinus aridorum (=L. westianus var. aridorum) | McFarlin's (=scrub) lupine |
| Lycopodium dichotomum | Hanging (=coneless) clubmoss |
| Lythrum curtissii | Curtiss' loosestrife |
| Macbridea alba | White birds-in-a-nest |
| Macradenia lutescens | Trinidad macradenia |
| Macranthera flammea | Hummingbird flower |
| Magnolia acuminata | Cucumber tree |
| Magnolia ashei | Ashe's magnolia |
| Magnolia pyramidata | Pyramidal magnolia |
| Malaxis unifolia | Green adder's mouth |
| Marshallia obovata | Barbara's buttons (unnamed) |
| Marshallia ramosa | Southern barbara's buttons |
| Matela alabamensis | Alabama milkweed; Alabama anglepod |
| Matela baldwyniana | Baldwin's milkweed; Baldwin's anglepod |
| Matela flavidula | Yellow-flowered anglepod |
| Matela floridana | Florida milkweed; panhandle anglepod |
| Maxillaria crassifolia | Hidden orchid |
| Maxillaria parviflora | Minnie-max |
| Medeola viginiana | Indian cucumber-root |
| Melanthera parvifolia | Small-leaved melanthera |
| Microgramma heterophylla | Climbing vine fern |
| Monotropa hypopithys | Pinesap (unnamed) |
| Monotropsis reynoldsiae | Pygmy-pipes; sweet pinesap |
| Nemastylis floridana | Fall-flowering pleat-leaf; celestial lily |
| Neurodium (=Paltonium) lancelatum | Ribbon fern |
| Nolina brittoniana | Scrub (=Britton's) beargrass |
| Okenia hypogaea | Burrowing four-o'clock |
| Oncidium bahamensis | Dancing lady orchid |
| Oncidium floridanum | Florida oncidium |
| Oncidium luridum | Mule-ear (=dingy-flowered) orchid |
| Ophioglossum palmatum | Hand adder's tongue fern |
| Opuntia spinosissima | Semaphore cactus |
| Opuntia triacantha | Keys joe-jumper |
| Oxypolis greenmanii | Giant water dropwort |
Protected Plants: L-O