| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| PIRA4 | Piriqueta racemosa (Jacq.) Sweet | rigid stripeseed | Turneraceae
|
| PITO3 | Piriqueta tomentosa sensu Small, non Kunth | Piriqueta cistoides ssp. caroliniana | Turneraceae
|
| PITR5 | Piriqueta tracyi Gandog. | Piriqueta cistoides ssp. caroliniana | Turneraceae
|
| PIVI6 | Piriqueta viridis Small | Piriqueta cistoides ssp. caroliniana | Turneraceae
|
| PIVI4 | Piriqueta viscosa Griseb. | purple stripeseed | Turneraceae
|
| PIRIQ | Piriqueta Aubl. | stripeseed | Turneraceae
|
| PICA5 | Piscidia carthagenensis Jacq. | stinkwood | Fabaceae
|
| PIER | Piscidia erythrina L. | Piscidia piscipula | Fabaceae
|
| PIPI3 | Piscidia piscipula (L.) Sarg. | Florida fishpoison tree | Fabaceae
|
| PISCI | Piscidia L. | piscidia | Fabaceae
|
| PIACM2 | Pisonia aculeata L. var. macranthocarpa J.D. Sm. | Pisonia aculeata | Nyctaginaceae
|
| PIAC2 | Pisonia aculeata L. | pullback | Nyctaginaceae
|
| PIAL3 | Pisonia albida (Heimerl) Britt. ex Standl. | corcho bobo | Nyctaginaceae
|
| PIBR3 | Pisonia brunoniana Endl. | Australasian catchbirdtree | Nyctaginaceae
|
| PICA14 | Pisonia capitata (S. Wats.) Standl. | Mexican devil's-claws | Nyctaginaceae
|
| PIDIL2 | Pisonia discolor Spreng. var. longifolia Heimerl | Guapira discolor | Nyctaginaceae
|
| PIDI5 | Pisonia discolor Spreng. | Guapira discolor | Nyctaginaceae
|
| PIFL6 | Pisonia floridana Britt. ex Small | Rock Key devil's-claws | Nyctaginaceae
|
| PIFR2 | Pisonia fragrans Dum.-Cours. | Guapira fragrans | Nyctaginaceae
|
| PIGR6 | Pisonia grandis R. Br. | grand devil's-claws | Nyctaginaceae
|
| PIHE3 | Pisonia helleri Standl. | Pisonia aculeata | Nyctaginaceae
|
| PIOB3 | Pisonia obtusata Jacq. | Guapira obtusata | Nyctaginaceae
|
| PIRO3 | Pisonia rotundata Griseb. | smooth devil's-claws | Nyctaginaceae
|
| PISA5 | Pisonia sandwicensis Hbd. | aulu | Nyctaginaceae
|
| PISU | Pisonia subcordata Sw. | water mampoo | Nyctaginaceae
|
| PIUM2 | Pisonia umbellifera (J.R. & G. Forst.) Seem. | umbrella catchbirdtree | Nyctaginaceae
|
| PIWA2 | Pisonia wagneriana Fosberg | Kauai catchbirdtree | Nyctaginaceae
|
| PISON | Pisonia L. | catchbirdtree | Nyctaginaceae
|
| PIFL8 | Pisophaca flexuosa (Hook.) Rydb. | Astragalus flexuosus var. flexuosus | Fabaceae
|
| PIAT4 | Pistacia atlantica Desf. | Mt. Atlas mastic tree | Anacardiaceae
|
| PICA8 | Pistacia cabulica Stocks | Pistacia atlantica | Anacardiaceae
|
| PICH4 | Pistacia chinensis Bunge | Chinese pistache | Anacardiaceae
|
| PILE5 | Pistacia lentiscus L. | mastic tree | Anacardiaceae
|
| PIME4 | Pistacia mexicana Kunth | American pistachio | Anacardiaceae
|
| PISI2 | Pistacia simaruba L. | Bursera simaruba | Burseraceae
|
| PITE10 | Pistacia terebinthus L. | Cyprus turpentine | Anacardiaceae
|
| PITE3 | Pistacia texana Swingle | Pistacia mexicana | Anacardiaceae
|
| PIVE3 | Pistacia vera L. | pistachio nut | Anacardiaceae
|
| PISTA | Pistacia L. | pistache | Anacardiaceae
|
| PIST2 | Pistia stratiotes L. | water lettuce | Araceae
|
| PISTI | Pistia L. | pistia | Araceae
|
| PIAR6 | Pisum arvense L. | Pisum sativum | Fabaceae
|
| PIEL5 | Pisum elatius Steven ex M. Bieb. | wild pea | Fabaceae
|
| PIFU | Pisum fulvum Sibthorp & Sm. | tawny pea | Fabaceae
|
| PIHU2 | Pisum humile Boiss. & Noe | Pisum sativum | Fabaceae
|
| PIMAG | Pisum maritimum L. var. glabrum Ser. | Lathyrus japonicus var. maritimus | Fabaceae
|
| PIMA10 | Pisum maritimum L. | Lathyrus japonicus var. maritimus | Fabaceae
|
| PISAA2 | Pisum sativum L. ssp. arvense (L.) Poiret | Pisum sativum | Fabaceae
|
| PISAA8 | Pisum sativum L. var. arvense (L.) Poir. | Pisum sativum | Fabaceae
|
| PISAH | Pisum sativum L. var. humile Poir. | Pisum sativum | Fabaceae
|
| PISAM | Pisum sativum L. var. macrocarpon Ser. | Pisum sativum | Fabaceae
|
| PISA6 | Pisum sativum L. | garden pea | Fabaceae
|
| PISY2 | Pisum syriacum (A. Berger) Lehman | Syrian pea | Fabaceae
|
| PISUM | Pisum L. | pea | Fabaceae
|
| PIDU2 | Pitavia dumosa Nutt. | Cneoridium dumosum | Rutaceae
|
| PIAN | Pitcairnia angustifolia Ait. | pina cortadora | Bromeliaceae
|
| PILA6 | Pitcairnia latifolia Ait. | Pitcairnia angustifolia | Bromeliaceae
|
| PITCA | Pitcairnia L'H�r. | pitcairnia | Bromeliaceae
|
| PIGA3 | Pitcheria galactoides Nutt. | Rhynchosia cytisoides | Fabaceae
|
| PIAR3 | Pithecellobium arboreum (L.) Urban | Cojoba arborea | Fabaceae
|
| PICA11 | Pithecellobium carbonarium (Britt.) Niez. & Nevl. | Albizia carbonaria | Fabaceae
|
| PIDU | Pithecellobium dulce (Roxb.) Benth. | monkeypod | Fabaceae
|
| PIEB2 | Pithecellobium ebano (Berl.) C.H. Muller | Ebenopsis ebano | Fabaceae
|
| PIFL3 | Pithecellobium flexicaule (Benth.) Coult. | Ebenopsis ebano | Fabaceae
|
| PIGR5 | Pithecellobium graciliflorum Blake | Guadeloupe blackbead | Fabaceae
|
| PIGU2 | Pithecellobium guadalupense (Pers.) Chapman | Pithecellobium keyense | Fabaceae
|
| PIJI | Pithecellobium jiringa (W. Jack) Prain ex King | blackbead | Fabaceae
|
| PIKE | Pithecellobium keyense Britt. ex Britt. & Rose | Florida Keys blackbead | Fabaceae
|
| PIMI5 | Pithecellobium minutum M.E. Jones | Acacia farnesiana | Fabaceae
|
| PIPA4 | Pithecellobium pallens (Benth.) Standl. | Havardia pallens | Fabaceae
|
| PISA3 | Pithecellobium saman (Jacq.) Benth. | Samanea saman | Fabaceae
|
| PIUN | Pithecellobium unguis-cati (L.) Benth. | catclaw blackbead | Fabaceae
|
| PITHE | Pithecellobium Mart. | blackbead | Fabaceae
|
| PICR3 | Pithecoctenium crucigerum (L.) A.H. Gentry | monkey's-comb | Bignoniaceae
|
| PITHE2 | Pithecoctenium Mart. ex Meisn. | monkey's-comb | Bignoniaceae
|
| PIACD | Pittosporum acuminatum Mann var. degeneri Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIACL | Pittosporum acuminatum Mann var. leptopodum Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIACM | Pittosporum acuminatum Mann var. magnifolium Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIACW | Pittosporum acuminatum Mann var. waimeanum Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIAC3 | Pittosporum acuminatum Mann | Pittosporum glabrum | Pittosporaceae
|
| PIAC4 | Pittosporum acutisepalum (Hbd.) Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIAM3 | Pittosporum amplectens Sherff | Pittosporum hosmeri | Pittosporaceae
|
| PIARR | Pittosporum argentifolium Sherff var. rockii Sherff | Pittosporum argentifolium | Pittosporaceae
|
| PIARS | Pittosporum argentifolium Sherff var. sessile Sherff | Pittosporum argentifolium | Pittosporaceae
|
| PIAR4 | Pittosporum argentifolium Sherff | Hawai'i poisonberry tree | Pittosporaceae
|
| PICAC2 | Pittosporum cauliflorum Mann var. cladanthoides Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICAF | Pittosporum cauliflorum Mann var. fulvum Hbd. | Pittosporum confertiflorum | Pittosporaceae
|
| PICAP | Pittosporum cauliflorum Mann var. pedicellatum Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICA12 | Pittosporum cauliflorum Mann | Pittosporum confertiflorum | Pittosporaceae
|
| PICLG | Pittosporum cladanthum Sherff var. gracilipes Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICLR | Pittosporum cladanthum Sherff var. reticulatum (Skottsberg) Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICLS | Pittosporum cladanthum Sherff var. skottsbergii St. John | Pittosporum confertiflorum | Pittosporaceae
|
| PICL2 | Pittosporum cladanthum Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICOL3 | Pittosporum confertiflorum Gray var. longipes Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICOM2 | Pittosporum confertiflorum Gray var. mannii Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICOM3 | Pittosporum confertiflorum Gray var. microphyllum Sherff | Pittosporum confertiflorum | Pittosporaceae
|
| PICO4 | Pittosporum confertiflorum Gray | ho'awa | Pittosporaceae
|
| PICR | Pittosporum crassifolium Banks & Soland. ex A. Cunningham | stiffleaf cheesewood | Pittosporaceae
|
| PIDOA | Pittosporum dolosum Sherff var. aquilonium Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIDO2 | Pittosporum dolosum Sherff | Pittosporum glabrum | Pittosporaceae
|
| PIFL4 | Pittosporum flocculosum (Hbd.) Sherff | Waianae Range cheesewood | Pittosporaceae
|