| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| PLGR2 | Platanthera grandiflora (Bigelow) Lindl. | greater purple fringed orchid | Orchidaceae
|
| PLHO4 | Platanthera holochila (Hbd.) Kraenzlin | Hawai'i bog orchid | Orchidaceae
|
| PLHO3 | Platanthera hookeri (Torr. ex Gray) Lindl. | Hooker's orchid | Orchidaceae
|
| PLHU2 | Platanthera huronensis (Nutt.) Lindl. | Huron green orchid | Orchidaceae
|
| PLHYG | Platanthera hyperborea (L.) Lindl. var. gracilis (Lindl.) Luer | lax-flowered green orchid | Orchidaceae
|
| PLHYH | Platanthera hyperborea (L.) Lindl. var. huronensis (Nutt.) Luer | Platanthera huronensis | Orchidaceae
|
| PLHYH2 | Platanthera hyperborea (L.) Lindl. var. hyperborea | northern green orchid | Orchidaceae
|
| PLHYM | Platanthera hyperborea (L.) Lindl. var. major Lange | Platanthera huronensis | Orchidaceae
|
| PLHYM2 | Platanthera hyperborea (L.) Lindl. var. minor Lange | Platanthera hyperborea var. hyperborea | Orchidaceae
|
| PLHYP | Platanthera hyperborea (L.) Lindl. var. purpurascens (Rydb.) Luer | Platanthera stricta | Orchidaceae
|
| PLHYV | Platanthera hyperborea (L.) Lindl. var. viridiflora (Cham.) Luer | tall Alaskan green orchid | Orchidaceae
|
| PLHY2 | Platanthera hyperborea (L.) Lindl. | northern green orchid | Orchidaceae
|
| PLIN5 | Platanthera integra (Nutt.) Gray ex Beck | yellow fringeless orchid | Orchidaceae
|
| PLIN6 | Platanthera integrilabia (Correll) Luer | monkeyface | Orchidaceae
|
| PLKE | Platanthera �keenanii P.M. Brown | | Orchidaceae
|
| PLLAT | Platanthera lacera (Michx.) G. Don var. terrae-novae (Fern.) Luer | Platanthera lacera | Orchidaceae
|
| PLLA2 | Platanthera lacera (Michx.) G. Don | green fringed orchid | Orchidaceae
|
| PLLE2 | Platanthera leucophaea (Nutt.) Lindl. | prairie white fringed orchid | Orchidaceae
|
| PLLE5 | Platanthera leucostachys Lindl. | Sierra bog orchid | Orchidaceae
|
| PLLI3 | Platanthera limosa Lindl. | Thurber's bog orchid | Orchidaceae
|
| PLMA9 | Platanthera macrophylla (Goldie) Lindl. | greater roundleaved orchid | Orchidaceae
|
| PLME2 | Platanthera �media (Rydb.) Luer (pro sp.) | | Orchidaceae
|
| PLNI | Platanthera nivea (Nutt.) Luer | snowy orchid | Orchidaceae
|
| PLOBO2 | Platanthera obtusata (Banks ex Pursh) Lindl. ssp. oligantha (Turcz.) Hult�n | Platanthera obtusata | Orchidaceae
|
| PLOB | Platanthera obtusata (Banks ex Pursh) Lindl. | bluntleaved orchid | Orchidaceae
|
| PLORM | Platanthera orbiculata (Pursh) Lindl. var. macrophylla (Goldie) Luer | Platanthera macrophylla | Orchidaceae
|
| PLOR4 | Platanthera orbiculata (Pursh) Lindl. | lesser roundleaved orchid | Orchidaceae
|
| PLPA6 | Platanthera pallida P.M. Brown | Platanthera canbyi | Orchidaceae
|
| PLPE | Platanthera peramoena (Gray) Gray | purple fringeless orchid | Orchidaceae
|
| PLPR4 | Platanthera praeclara Sheviak & Bowles | Great Plains white fringed orchid | Orchidaceae
|
| PLPS2 | Platanthera psycodes (L.) Lindl. | lesser purple fringed orchid | Orchidaceae
|
| PLRE6 | Platanthera repens (Nutt.) Wood | Habenaria repens | Orchidaceae
|
| PLSA6 | Platanthera saccata (Greene) Hult�n | Platanthera stricta | Orchidaceae
|
| PLSPB | Platanthera sparsiflora (S. Wats.) Schlechter var. brevifolia (Greene) Luer | Platanthera brevifolia | Orchidaceae
|
| PLSPE | Platanthera sparsiflora (S. Wats.) Schlechter var. ensifolia (Rydb.) Luer | sparse-flowered bog orchid | Orchidaceae
|
| PLSPS | Platanthera sparsiflora (S. Wats.) Schlechter var. sparsiflora | sparse-flowered bog orchid | Orchidaceae
|
| PLSP2 | Platanthera sparsiflora (S. Wats.) Schlechter | sparse-flowered bog orchid | Orchidaceae
|
| PLST4 | Platanthera stricta Lindl. | slender bog orchid | Orchidaceae
|
| PLTIB | Platanthera tipuloides (L.) Lindl. var. behringiana (Rydb.) Hult�n | Aleutian bog orchid | Orchidaceae
|
| PLTI | Platanthera tipuloides (L.) Lindl. | Aleutian bog orchid | Orchidaceae
|
| PLUNE | Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde | Piperia elongata | Orchidaceae
|
| PLUNM | Platanthera unalascensis (Spreng.) Kurtz ssp. maritima (Greene) de Filipps | Piperia elegans ssp. elegans | Orchidaceae
|
| PLUNM2 | Platanthera unalascensis (Spreng.) Kurtz var. maritima (Greene) Correll | Piperia elegans ssp. elegans | Orchidaceae
|
| PLUN3 | Platanthera unalascensis (Spreng.) Kurtz | Piperia unalascensis | Orchidaceae
|
| PLVO | Platanthera �vossii Case | | Orchidaceae
|
| PLZO | Platanthera zothecina (Higgins & Welsh) Kartesz & Gandhi | alcove bog orchid | Orchidaceae
|
| PLATA2 | Platanthera L.C. Rich. | fringed orchid | Orchidaceae
|
| PLAC2 | Platanus acerifolia (Ait.) Willd. | Platanus hybrida | Platanaceae
|
| PLHY3 | Platanus hybrida Brot. | London planetree | Platanaceae
|
| PLOCG | Platanus occidentalis L. var. glabrata (Fern.) Sarg. | Platanus occidentalis | Platanaceae
|
| PLOC | Platanus occidentalis L. | American sycamore | Platanaceae
|
| PLOR6 | Platanus orientalis L. | oriental planetree | Platanaceae
|
| PLRAW | Platanus racemosa Nutt. var. wrightii (S. Wats.) L. Benson | Platanus wrightii | Platanaceae
|
| PLRA | Platanus racemosa Nutt. | California sycamore | Platanaceae
|
| PLWR2 | Platanus wrightii S. Wats. | Arizona sycamore | Platanaceae
|
| PLATA | Platanus L. | sycamore | Platanaceae
|
| PLGL60 | Platismatia glauca (L.) Culb. & C. Culb. | ragged lichen | Parmeliaceae
|
| PLHE60 | Platismatia herrei (Imshaug) Culb. & C. Culb. | Herre's ragged lichen | Parmeliaceae
|
| PLLA6 | Platismatia lacunosa (Ach.) Culb. & C. Culb. | ragged lichen | Parmeliaceae
|
| PLNO60 | Platismatia norvegica (Lynge) Culb. & C. Culb. | Norwegian ragged lichen | Parmeliaceae
|
| PLST6 | Platismatia stenophylla (Tuck.) Culb. & C. Culb. | ragged lichen | Parmeliaceae
|
| PLTU | Platismatia tuckermanii (Oakes) Culb. & C. Culb. | Tuckerman's ragged lichen | Parmeliaceae
|
| PLATI2 | Platismatia Culb. & C. Culb. | ragged lichen | Parmeliaceae
|
| PLES | Platonia esculenta (Arruda) Rickett & Stafleu | bacury | Clusiaceae
|
| PLIN10 | Platonia insignis C. Martius | Platonia esculenta | Clusiaceae
|
| PLATO | Platonia C. Martius | platonia | Clusiaceae
|
| PLOR80 | Platycladus orientalis (L.) Franco | oriental arborvitae | Cupressaceae
|
| PLATY6 | Platycladus Spach | platycladus | Cupressaceae
|
| PLGR5 | Platycodon grandiflorum (Jacq.) A. DC. | balloon flower | Campanulaceae
|
| PLATY4 | Platycodon A. DC. | platycodon | Campanulaceae
|
| PLCOC2 | Platydesma cornuta Hbd. var. cornuta | Oahu pilo kea | Rutaceae
|
| PLCOD | Platydesma cornuta Hbd. var. decurrens B.C. Stone | Oahu pilo kea | Rutaceae
|
| PLCO6 | Platydesma cornuta Hbd. | Oahu pilo kea | Rutaceae
|
| PLRE4 | Platydesma remyi (Sherff) O.& I. Deg., Sherff & B.C. Stone | Hawai'i pilo kea | Rutaceae
|
| PLRO2 | Platydesma rostrata Hbd. | pilo kea lau li'i | Rutaceae
|
| PLSPP | Platydesma spathulata (Gray) B.C. Stone var. pallida (Hbd.) B.C. Stone | Platydesma spathulata | Rutaceae
|
| PLSPP2 | Platydesma spathulata (Gray) B.C. Stone var. pubescens (Skottsberg) B.C. Stone | Platydesma spathulata | Rutaceae
|
| PLSP3 | Platydesma spathulata (Gray) B.C. Stone | Maui pilo kea | Rutaceae
|
| PLATY | Platydesma Mann | platydesma | Rutaceae
|
| PLCO14 | Platydictya confervoides (Brid.) Crum | platydictya moss | Hypnaceae
|
| PLJUM | Platydictya jungermannioides (Brid.) Crum var. minutissima (Sull. & Lesq. in Sull.) Crum | Platydictya minutissima | Hypnaceae
|
| PLJU2 | Platydictya jungermannioides (Brid.) Crum | Jungermann's platydictya moss | Hypnaceae
|
| PLMI4 | Platydictya minutissima (Sull. & Lesq. in Sull.) Crum | minute platydictya moss | Hypnaceae
|
| PLSU5 | Platydictya subtilis (Hedw.) Crum | platydictya moss | Hypnaceae
|
| PLATY9 | Platydictya Berk. | platydictya moss | Hypnaceae
|
| PLCA17 | Platygrapha californica (Tuck.) Nyl. | Sigridea californica | Roccellaceae
|
| PLHY7 | Platygrapha hypothallina Zahlbr. | Lecanographa hypothallina | Uncertain Lichen Family
|
| PLRA4 | Platygrapha ravenelii Tuck. | Opegrapha ravenelii | Opegraphaceae
|
| PLIN9 | Platygraphopsis interrupta (Fee) Mull. Arg. | | Uncertain Lichen Family
|
| PLATY11 | Platygraphopsis Mull. Arg. | platygraphopsis | Uncertain Lichen Family
|
| PLFU2 | Platygyrium fuscoluteum Card. | platygyrium moss | Hypnaceae
|
| PLOR8 | Platygyrium orthoclados Kindb. in Mac. & Kindb. | Platygyrium repens | Hypnaceae
|
| PLREA | Platygyrium repens (Brid.) Schimp. in B.S.G. var. ascendens (Schwaegr.) Grout | Platygyrium repens | Hypnaceae
|
| PLREO | Platygyrium repens (Brid.) Schimp. in B.S.G. var. orthoclados Kindb. | Platygyrium repens | Hypnaceae
|
| PLRE5 | Platygyrium repens (Brid.) Schimp. in B.S.G. | platygyrium moss | Hypnaceae
|
| PLATY10 | Platygyrium Schimp. in B.S.G. | platygyrium moss | Hypnaceae
|
| PLPR5 | Platyhypnidium pringei (Card.) Broth. | Pringe's platyhypnidium moss | Brachytheciaceae
|
| PLRI2 | Platyhypnidium riparoides (Hedw.) Dix. | platyhypnidium moss | Brachytheciaceae
|
| PLATY12 | Platyhypnidium Fleisch. | platyhypnidium moss | Brachytheciaceae
|
| PLLE3 | Platylomella lescurii (Sull. in Gray) Andrews | Lescur's platylomella moss | Amblystegiaceae
|
| PLATY13 | Platylomella Andrews | platylomella moss | Amblystegiaceae
|