| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| PLIND | Platyschkuhria integrifolia (Gray) Rydb. var. desertorum (M.E. Jones) W. Ellison | desert basindaisy | Asteraceae
|
| PLINI | Platyschkuhria integrifolia (Gray) Rydb. var. integrifolia | basindaisy | Asteraceae
|
| PLINO | Platyschkuhria integrifolia (Gray) Rydb. var. oblongifolia (Gray) W. Ellison | oblongleaf basindaisy | Asteraceae
|
| PLINO2 | Platyschkuhria integrifolia (Gray) Rydb. var. ourolepis (Blake) W. Ellison | basindaisy | Asteraceae
|
| PLIN7 | Platyschkuhria integrifolia (Gray) Rydb. | basindaisy | Asteraceae
|
| PLOB3 | Platyschkuhria oblongifolia (Gray) Rydb. | Platyschkuhria integrifolia var. oblongifolia | Asteraceae
|
| PLATY5 | Platyschkuhria Rydb. | basindaisy | Asteraceae
|
| PLAR5 | Platystemon arizonicus Greene | Platystemon californicus | Papaveraceae
|
| PLCAC | Platystemon californicus Benth. var. ciliatus Dunkle | Platystemon californicus | Papaveraceae
|
| PLCAC2 | Platystemon californicus Benth. var. crinitus Greene | Platystemon californicus | Papaveraceae
|
| PLCAH | Platystemon californicus Benth. var. horridulus (Greene) Jepson | Platystemon californicus | Papaveraceae
|
| PLCAN | Platystemon californicus Benth. var. nutans Brandeg. | Platystemon californicus | Papaveraceae
|
| PLCAO | Platystemon californicus Benth. var. ornithopus (Greene) Munz | Platystemon californicus | Papaveraceae
|
| PLCA5 | Platystemon californicus Benth. | creamcups | Papaveraceae
|
| PLCO8 | Platystemon confinis Greene | Platystemon californicus | Papaveraceae
|
| PLMO2 | Platystemon mohavensis Greene | Platystemon californicus | Papaveraceae
|
| PLATY3 | Platystemon Benth. | creamcups | Papaveraceae
|
| PLLI4 | Platystigma linearis Benth. | narrowleaf queen poppy | Papaveraceae
|
| PLATY8 | Platystigma Benth. | queen poppy | Papaveraceae
|
| PLQU | Platythelys querceticola (Lindl.) Garay | jug orchid | Orchidaceae
|
| PLATY7 | Platythelys Garay | platythelys | Orchidaceae
|
| PLCO11 | Pleconax conica (L.) Sourkova | Silene conica | Caryophyllaceae
|
| PLCO12 | Pleconax conoidea (L.) Sourkova | Silene conoidea | Caryophyllaceae
|
| PLLI5 | Plectocarpon lichenum (Sommerf.) D. Hawksw. | | Roccellaceae
|
| PLNE4 | Plectocarpon nephromeum (Norman) Sant. | | Roccellaceae
|
| PLECT3 | Plectocarpon Fee | plectocarpon | Roccellaceae
|
| PLAM2 | Plectranthus amboinicus (Lour.) Spreng. | Mexican mint | Lamiaceae
|
| PLAU7 | Plectranthus australis R. Br. | Plectranthus parviflorus | Lamiaceae
|
| PLBA2 | Plectranthus barbatus Andrews | forskohlii | Lamiaceae
|
| PLBL2 | Plectranthus blumei (Benth.) Launert | Coleus scutellarioides | Lamiaceae
|
| PLCI6 | Plectranthus ciliatus E. Mey. | speckled spur flower | Lamiaceae
|
| PLES2 | Plectranthus esculentus N. E. Br. | kaffir potato | Lamiaceae
|
| PLNU2 | Plectranthus nummularius Briq. | Plectranthus verticillatus | Lamiaceae
|
| PLPA3 | Plectranthus parviflorus Willd. | little spurflower | Lamiaceae
|
| PLSC5 | Plectranthus scutellarioides (L.) R. Br. | Coleus scutellarioides | Lamiaceae
|
| PLVE2 | Plectranthus verticillatus (L. f.) Druce | whorled plectranthus | Lamiaceae
|
| PLECT2 | Plectranthus L'H�r. | plectranthus | Lamiaceae
|
| PLANG | Plectritis anomala (Gray) Suksdorf var. gibbosa (Suksdorf) Dyal | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLAN3 | Plectritis anomala (Gray) Suksdorf | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLAP2 | Plectritis aphanoptera (Gray) Suksdorf | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLBR6 | Plectritis brachystemon Fisch. & C.A. Mey. | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLCAR | Plectritis californica (Suksdorf) Dyal var. rubens (Suksdorf) Dyal | Plectritis ciliosa ssp. insignis | Valerianaceae
|
| PLCA14 | Plectritis californica (Suksdorf) Dyal | Plectritis ciliosa ssp. ciliosa | Valerianaceae
|
| PLCIC | Plectritis ciliosa (Greene) Jepson ssp. ciliosa | longspur seablush | Valerianaceae
|
| PLCII | Plectritis ciliosa (Greene) Jepson ssp. insignis (Suksdorf) Morey | longspur seablush | Valerianaceae
|
| PLCID | Plectritis ciliosa (Greene) Jepson var. davyana (Jepson) Dyal | Plectritis ciliosa ssp. insignis | Valerianaceae
|
| PLCI | Plectritis ciliosa (Greene) Jepson | longspur seablush | Valerianaceae
|
| PLCOB | Plectritis congesta (Lindl.) DC. ssp. brachystemon (Fisch. & C.A. Mey.) Morey | shortspur seablush | Valerianaceae
|
| PLCOC3 | Plectritis congesta (Lindl.) DC. ssp. congesta | shortspur seablush | Valerianaceae
|
| PLCON | Plectritis congesta (Lindl.) DC. ssp. nitida (Heller) Morey | shortspur seablush | Valerianaceae
|
| PLCOM | Plectritis congesta (Lindl.) DC. var. major (Fisch. & C.A. Mey.) Dyal | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLCO4 | Plectritis congesta (Lindl.) DC. | shortspur seablush | Valerianaceae
|
| PLEI2 | Plectritis eichleriana (Suksdorf) Heller | Plectritis macrocera ssp. macrocera | Valerianaceae
|
| PLJE2 | Plectritis jepsonii (Suksdorf) Burtt-Davy | Plectritis macrocera ssp. macrocera | Valerianaceae
|
| PLMAG | Plectritis macrocera Torr. & Gray ssp. grayi (Suksdorf) Morey | Gray's seablush | Valerianaceae
|
| PLMAM2 | Plectritis macrocera Torr. & Gray ssp. macrocera | longhorn plectritis | Valerianaceae
|
| PLMAC3 | Plectritis macrocera Torr. & Gray var. collina (Heller) Dyal | Plectritis macrocera ssp. macrocera | Valerianaceae
|
| PLMAG2 | Plectritis macrocera Torr. & Gray var. grayi (Suksdorf) Dyal | Plectritis macrocera ssp. grayi | Valerianaceae
|
| PLMAM4 | Plectritis macrocera Torr. & Gray var. macroptera Suksdorf | Plectritis macrocera ssp. macrocera | Valerianaceae
|
| PLMAM3 | Plectritis macrocera Torr. & Gray var. mamillata (Suksdorf) Dyal | Plectritis macrocera ssp. grayi | Valerianaceae
|
| PLMA4 | Plectritis macrocera Torr. & Gray | longhorn plectritis | Valerianaceae
|
| PLMAP3 | Plectritis macroptera (Suksdorf) Rydb. var. patelliformis (Suksdorf) Dyal | Plectritis ciliosa ssp. insignis | Valerianaceae
|
| PLMA8 | Plectritis macroptera (Suksdorf) Rydb. | Plectritis macrocera ssp. macrocera | Valerianaceae
|
| PLMAN | Plectritis magna (Greene) Suksdorf var. nitida (Heller) Dyal | Plectritis congesta ssp. nitida | Valerianaceae
|
| PLMA7 | Plectritis magna (Greene) Suksdorf | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLSAI | Plectritis samolifolia (DC.) Hoeck var. involuta (Suksdorf) Dyal | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLSA7 | Plectritis samolifolia (DC.) Hoeck | Plectritis congesta ssp. brachystemon | Valerianaceae
|
| PLECT | Plectritis (Lindl.) DC. | seablush | Valerianaceae
|
| PLTE3 | Pleea tenuifolia Michx. | rush featherling | Liliaceae
|
| PLEEA | Pleea Michx. | pleea | Liliaceae
|
| PLSI2 | Pleioblastus simonii (Carr.) Nakai | Arundinaria simonii | Poaceae
|
| PLNUT | Pleiotaenia nuttallii (DC.) Coult. & Rose var. texana (Coult. & Rose) Coult. & Rose | Polytaenia texana | Apiaceae
|
| PLNU | Pleiotaenia nuttallii (DC.) Coult. & Rose | Polytaenia nuttallii | Apiaceae
|
| PLMA6 | Pleodendron macranthum (Baill.) v. Tiegh. | chupa gallo | Canellaceae
|
| PLEOD | Pleodendron v. Tiegh. | pleodendron | Canellaceae
|
| PLAU2 | Pleomele aurea (Mann) N.E. Br. | golden hala pepe | Liliaceae
|
| PLAU5 | Pleomele auwahiensis St. John | Maui hala pepe | Liliaceae
|
| PLFE | Pleomele fernaldii St. John | Lanai hala pepe | Liliaceae
|
| PLFO2 | Pleomele forbesii O. Deg. | Waianae Range hala pepe | Liliaceae
|
| PLHA3 | Pleomele halapepe St. John | royal hala pepe | Liliaceae
|
| PLHA4 | Pleomele hawaiiensis O.& I. Deg. | Hawai'i hala pepe | Liliaceae
|
| PLEOM | Pleomele Salisb. | hala pepe | Liliaceae
|
| PLAS2 | Pleopeltis astrolepis (Liebm.) Fourn. | starscale fern | Polypodiaceae
|
| PLER2 | Pleopeltis erythrolepis (Weatherby) Pichi Sermolli | Pleopeltis polylepis var. erythrolepis | Polypodiaceae
|
| PLLI2 | Pleopeltis linearis (Thunb.) Moore | Lepisorus thunbergianus | Polypodiaceae
|
| PLPOE | Pleopeltis polylepis (Roemer ex Kunze) Moore var. erythrolepis (Weatherby) T. Wendt | redscale scaly polypody | Polypodiaceae
|
| PLPO | Pleopeltis polylepis (Roemer ex Kunze) Moore | redscale scaly polypody | Polypodiaceae
|
| PLPOM | Pleopeltis polypodioides (L.) Andrews & Windham ssp. michauxiana (Weatherby) Andrews & Windham | resurrection fern | Polypodiaceae
|
| PLPOP | Pleopeltis polypodioides (L.) Andrews & Windham ssp. polypodioides | resurrection fern | Polypodiaceae
|
| PLPO2 | Pleopeltis polypodioides (L.) Andrews & Windham | resurrection fern | Polypodiaceae
|
| PLRE3 | Pleopeltis revoluta (Spreng. ex Willd.) A.R. Sm., non Alderw. | Pleopeltis astrolepis | Polypodiaceae
|
| PLRI | Pleopeltis riograndensis (T. Wendt) Andrews & Windham | Rio Grande scaly polypody | Polypodiaceae
|
| PLSQ | Pleopeltis squamata (L.) J. Sm. | thickleaf scaly polypody | Polypodiaceae
|
| PLTH | Pleopeltis thunbergiana Kaulfuss | Lepisorus thunbergianus | Polypodiaceae
|
| PLTH2 | Pleopeltis thyssanolepis (A. Braun ex Klotzsch) Andrews & Windham | Arizona scaly polypody | Polypodiaceae
|
| PLEOP | Pleopeltis Humb. & Bonpl. ex Willd. | scaly polypody | Polypodiaceae
|
| PLSE3 | Pleopogon setosus Nutt. | Lycurus setosus | Poaceae
|
| PLCH4 | Pleopsidium chlorophanum (Wahlenb.) Zopf | | Acarosporaceae
|
| PLFL4 | Pleopsidium flavum (Bellardi) Korber | | Acarosporaceae
|
| PLOX | Pleopsidium oxytonum (Ach.) Rabenh. | Pleopsidium flavum | Acarosporaceae
|
| PLEOP2 | Pleopsidium Korber | pleopsidium | Acarosporaceae
|