| Commercially exploited |
|---|
| Rhapidophyllum hystrix | Needle palm |
| Rhododendron canescens | Pink azalea |
| Threatened |
|---|
| Pinckneya bracteata (=P. pubens) | Hairy fevertree |
| Pinguicula caerulea | Blue flowered butterwort |
| Pinguicula lutea | Yellow flowered butterwort |
| Pinguicula planifolia | Chapman's (=swamp) butterwort |
| Platanthera blephariglottis | Large white-fringed orchid |
| Platanthera ciliaris | Yellow-fringed orchid |
| Platanthera cristata | Golden (=crested) fringed orchid |
| Platanthera flava | Southern tubercled orchid; gypsy-spikes |
| Platanthera nivea | Snowy orchid; bog torch |
| Pogonia ophioglossoides | Rose pogonia |
| Polygonella macrophylla | Large-leaved jointweed |
| Pteroglossaspis (=Eulophia) ecristata | Non-crested coco; false coco |
| Endangered |
|---|
| Pachysandra procumbens | Allegheny spurge |
| Panicum abscissum | Cutthroat grass |
| Parnassia caroliniana | Coastal (=Carolina) grass-of-parnassus |
| Parnassia grandifolia | Grass-of-parnassus |
| Paronychia chartacea | Papery whitlow-wort |
| Pecluma dispersa | Polypoda fern (unnamed) |
| Pecluma plumula | Plume polypoda fern |
| Pecluma ptilodon | Swamp plume polypoda fern |
| Pellaea atropurpurea | Cliff brake fern |
| Peperomia glabella | Cypress peperomia |
| Peperomia humilis | Pepper (unnamed) |
| Peperomia magnoliifolia (=P. spathulifolia) | Spatulate peperonia |
| Peperomia obtusifolia (=floridana) | Florida (=Everglades) peperomia |
| Phoradendron rubrum | Mahogany mistletoe |
| Phyllanthus liebmannianus | Pinewood dainties; Florida leaf flower |
| Physocarpus opulifolius | Ninebark |
| Pinguicula ionantha | Godfrey's (=panhandle) butterwort |
| Pinguicula primuliflora | Primrose-flowered butterwort |
| Pityopsis flexuosa | Panhandle (=Florida) golden aster |
| Platanthera clavellata | Little club-spur orchid; green rein orchid |
| Platanthera integra | Southern yellow fringeless orchid; orange rein orchid |
| Pleopeltis astrolepis | Star-scaled fern |
| Pleurothallis gelida | Frosted orchid |
| Poinsettia pinetorum | Everglades poinsettia |
| Polygala lewtonii polygala | Scrub milkwort; Lewton's |
| Polygala smallii | Tiny (=Small's) milkwort |
| Polygonella ciliata var. basiramia (=P. basiramia) | Hairy (=tufted) jointweed |
| Polygonella myriophylla | Small's jointweed; sandlace |
| Polygonum meisnerianum | Mexican tear-thumb |
| Polyradicion (=Polyrrhiza) lindenii | Ghost orchid; palm polly |
| Polystachya flavescens (=P. concreta; =P. extinctoria) | Pale-flowered polystachya |
| Ponthieva brittoniae | Mrs. Britton's shadow witch |
| Prescottia oligantha | Small-flowered orchid |
| Prunus geniculata | Scrub plum |
| Pseudophoenix sargentii | Buccaneer (=Sargent's cherry) palm |
| Pteris bahamensis | Cretan brake fern |
| Remirea maritima | Beach star |
| Rhexia parviflora | Apalachicola (=small-flowered) meadowbeauty |
| Rhipsalis baccifera | Mistletoe cactus |
| Rhododendron alabamense | Alabama azalea |
| Rhododendron austrinum | Florida flame (=orange) azalea |
| Rhododendron chapmanii | Chapman's rhododendron |
| Rhus michauxii | Michaux's sumac |
| Ribes echinellum | Miccosukee (=Florida) gooseberry |
| Roystonea elata | Florida royal palm |
| Rudbeckia nitida | St. John's-susan; yellow coneflower |
| Ruellia noctiflora | Night-flowering wild petunia |
Protected Plants: P-R