| |
| Pabstia | jugosa, viridis |
| Pabstiella | alligatorifera, arcuata, armeniaca, aveniformis, bacillaris, bicolor, bradei, calcarata, campestris, carinifera, colorata, curti-bradei, fusca, hians, intraptila, matinhensis, miniatolineolata, mirabilis, miragliae, parvifolia, pellifeloides, piraquarensis, pleurothalloides, podoglossa, pristeoglossa, pterophora, punctatifolia, recurviloba, rubrolineata, sarcopetala, seriata, sordida, stictophylla, tenera, tricolor, trifida, tripterantha, uniflora, varellae, vellozoana, wackettii, wawraeana |
| Pachira | glabra |
| Pachygenium | arechavaletae, laurense |
| Pachylaena | atriplicifolia |
| Pachyrhizus | ahipa |
| Pachystachys | azaleiflora, dubiosa |
| Pachystroma | longifolium |
| Pacourina | edulis |
| Paederia | brasiliensis |
| Paepalanthus | albovaginatus var. albobracteatus, albovaginatus var. fuscobracteatus, albovaginatus var. albovaginatus, balansae var. balansae, bryoides, henriquei, kleinii, paulensis, planifolius, pruinosus, striatus |
| Paesia | glandulosa |
| Palaua | concinna, dissecta, inconspicua, modesta |
| Palhinhaea | camporum, cernua |
| Palicourea | argentinensis, australis, brevicollis, crocea, croceoides, deflexa, jungiana, macrobotrys, malaneoides, mamillaris, marcgravii, rigida, sessilis, tenerior, tristis |
| Panicum | aquaticum, bergii var. bergii, bergii var. pilosissimum, campestre, capillare, cayennense, cervicatum, chasiae, chloroleucum, dichotomiflorum, exiguum, glabripes, gouinii, hirsutum, longissimum, magnispicula, miliaceum, millegrana, olyroides var. hirsutum, olyroides var. olyroides, pedersenii, peladoense, quadriglume, racemosum, repens, rudgei, sellowii, stramineum, trichanthum, trichoides, tricholaenoides var. tricholaenoides, tricholaenoides var. flavomarginatum, urvilleanum |
| Panphalea | araucariophila, bupleurifolia, cardaminifolia, commersonii, heterophylla, maxima, missionum, ramboi, smithii, tenuissima |
| Pantacantha | ameghinoi |
| Papaver | dubium, hybridum, nudicaule, rhoeas, somniferum |
| Paposoa | laeta |
| Pappophorum | caespitosum, hassleri, krapovickasii, macrospermum, pappiferum, phillippianum, vaginatum |
| Pappostipa | ameghinoi, arenicola, atacamensis, barrancaensis, braun-blanqueti, choconensis, chrysophylla var. chrysophylla, chrysophylla var. crispula, chubutensis, colloncurensis, frigida var. frigida, frigida var. parvispicula, frigida var. longifolia, hieronymusii, humilis var. humilis, humilis var. ruiziana, humilis var. decrescens, ibarii f. pallescens, ibarii f. ibarii, jucunda, kieslingii, maeviae, malalhuensis, mapuche, marqueziana, nana, nicorae, parodiana, ruiz-lealii, semperiana, sorianoi, speciosa, vaginata, vatroensis, zulmae |
| Parablechnum | chilense, cordatum, usterianum |
| Paradisanthus | micranthus, mosenii |
| Paranephelius | asperifolius |
| Parapholis | cylindrica, incurva, strigosa |
| Parapiptadenia | excelsa, rigida |
| Parapolystichum | effusum |
| Parasenegalia | visco |
| Parastrephia | lepidophylla, lucida, quadrangularis, teretiuscula |
| Parentucellia | latifolia |
| Parietaria | debilis, feliciana, judaica |
| Parinari | obtusifolia |
| Parkinsonia | aculeata, andicola, glauca, praecox |
| Parodia | alacriportana, allosiphon, arnostiana, aureicentra, buiningii, carambeiensis, chrysacanthion, claviceps, concinna, crassigiba, fusca, gaucha, graessneri, haselbergii, herteri, horstii, leninghausii, linkii, maassii, magnifica, mammulosa, microsperma ssp. microsperma, microsperma ssp. horrida, microsperma ssp. gaponiorum, mueller-melchersii, muricata, neohorstii, nigrispina, nivosa, notorauschii, ottonis, oxycostata ssp. gracilis, oxycostata ssp. oxycostata, penicillata, rechensis, rudibuenekeri, schumanniana, scopa ssp. neobuenekeri, scopa ssp. succinea, scopa ssp. scopa, stockingeri, stuemeri, submammulosa ssp. minor, submammulosa ssp. submammulosa, tabularis, tenuicylindrica, turecekiana, wedermanniana |
| Parodianthus | capillaris, ilicifolius |
| Parodiodendron | marginivillosum |
| Parodiodoxa | chionophila |
| Parodiophyllochloa | cordovensis, missiona, ovulifera, pantricha, rhizogona |
| Paronychia | brasiliana ssp. pubescens, brasiliana var. brasiliana, cabrerae, camphorosmoides, chilensis var. mutica, chilensis f. subglabra, chilensis ssp. chilensis, chilensis ssp. subandina, communis var. communis, communis var. chicligastensis, coquimbensis var. appressa, coquimbensis var. coquimbensis, hieronymi var. hieronymi, johnstonii var. scabrida, johnstonii var. johnstonii, jujuyensis, microphylla, muschleri, revoluta, setigera ssp. argillicola, setigera ssp. setigera, setigera var. longiseta, setigera var. cordobensis, setigera var. subglabra |
| Parthenium | cineraceum, hysterophorus |
| Parthenocissus | quinquefolia, tricuspidata |
| Pascalia | glauca, subvaginata |
| Pasithea | caerulea |
| Paspalum | acuminatum, almum, ammodes, approximatum, arenarium, arundinellum, atratum, bertonii, buckleyanum, candidum, carinatum, ceresia, chacoense, chaseanum, chilense, cinerascens, commune, compressifolium, conduplicatum, conjugatum, conspersum, corcovadense, cordatum, crispatum, cromyorrhizon, dasypleurum, dasytrichum, decumbens, dedeccae, denticulatum, dilatatum var. dilatatum, dilatatum var. uruguaianense, dilatatum var. chiru, distichum, durifolium, ekmanianum, ellipticum, equitans, erianthoides, erianthum, eucomum, exaltatum, falcatum, fasciculatum, filifolium, flaccidum, flavescens, flavum, foliiforme, forsterianum, gardnerianum, glabrinode, glaucescens, gracielae, guenoarum var. guenoarum, guenoarum var. rojasii, haumanii, humboldtianum, hyalinum, inaequivalve, indecorum, intermedium, ionanthum, jesuiticum, juergensii, lachneum, laurentii, lepton, lilloi, limbatum, lineare, macranthecium, maculosum, malacophyllum, mandiocanum var. mandiocanum, mandiocanum var. subaequiglume, minus, modestum, multicaule, notatum var. notatum, notatum var. saurae, nutans, orbiculare, orbiculatum, ovale, palustre, paniculatum, pauciciliatum, paucifolium, pectinatum, pilosum, planum, plenum, plicatulum, plurinerve, polyphyllum, procurrens, pumilum, pygmaeum, quadrifarium, quarinii, ramboi, rawitscheri, redondense, regnellii, remotum, repandum, repens, rufum, scrobiculatum, simplex, stagnophilum, stellatum, telmatum, torrense, umbrosum, unispicatum, urvillei, usteri, vacarianum, vaginatum, virgatum, volcanensis, wrightii |
| Passiflora | actinia, alata, amethystina, caerulea, campanulata, capsularis, catharinensis, cervii, chrysophylla, cincinnata, coelestis, edulis, eichleriana, elegans, foetida var. foetida, foetida var. fluminensis, giberti, haematostigma, jilekii, lepidota, loefgrenii, longilobis, mendoncaei, miersii, misera, mooreana, morifolia, oerstedii, organensis, palmatisecta, pinnatistipula, pohlii, reitzii, rotundifolia, setulosa, suberosa ssp. litoralis, tenuifila, tranversalis, tricuspis, truncata, tucumanensis, umbilicata, urnifolia, urubiciensis, villosa |
| Pastinaca | sativa |
| Patosia | clandestina |
| Paubrasilia | echinata |
| Paullinia | carpopodea, cristata, elegans, meliifolia, pinnata, revoluta, rhomboidea, seminuda, spicata, trigonia, uloptera |
| Pausandra | morisiana |
| Pavonia | angustipetala, apiculata, argentina, aspera, aurelii, aurigloba, balansae, belophylla, betonicifolia, biflora, bullulata, cancellata, communis, commutata, cryptica, cymbalaria, distinguenda, dusenii, eurychlamys, exasperata, flavispina, formosa, friesii, fruticosa, glechomoides, glutinosa, gracilis, guerkeana, hassleriana, hastata, hatschbacii, hexaphylla, hieronymi, hoehnei, horrida, inmaculata, kleinii, lanata, laxifolia, mattogrossensis, missionum, nana, narcissi, neei, nemoralis, opulifolia, orientalis, pabstii, patuliloba, platyloba, psilophylla, pulchra, ramboi, reitzii, renifolia, restiaria, reticulata, revoluta, rhodantha, rojasii, rosengurtii, rubra, rupestris, sagittata, salmonea, sapucayensis, schiedeana, schininii, schrankii, secreta, sepium, sidifolia, stenopetala, subrotunda, vannii, vitifolia, xanthogloea |
| Pecluma | barituensis, camptophyllaria var. lachnifera, chnoophora, choquetangensis, filicula, oranensis, paradiseae, pectinatiformis, plumula, recurvata, robusta, sicca, singeri, truncorum, venturii |
| Pectis | guaranitica, odorata, sessiliflora, substriata |
| Pectocarya | anomala, boliviana, dimorpha, linearis, pusilla |
| Pedersenia | hassleriana, macrophylla |
| Peixotoa | catarinensis, floribunda, jussieuana, parviflora, reticulata |
| Pelazoneuron | abruptum, berroi, patens, schizotis |
| Pelexia | albicans, bonariensis, burgeri, collocaliae, ekmanii, goyazensis, gracilis, hysterantha, incurvidens, itatiaiae, laminata, laxa, lindmaniana, lindmanii, loefgrenii, macropoda, novofriburgensis, oestrifera, orobanchoides, orthosepala, ovatifolia, paludosa, paraguayensis, parva, pterygantha, robusta, sancta, sceptrum, schmidtiana, tamanduensis, tenuior, ventricosa, viridis |
| Pellaea | furcata, myrtillifolia, ovata, sagittata, ternifolia ssp. weddelliana, ternifolia ssp. ternifolia |
| Peltaea | edouardii, lasiantha, obsita, polymorpha, speciosa |
| Peltophorum | dubium |
| Peltophyllum | luteum |
| Pennellia | boliviensis, brachycarpa, yalaensis |
| Pentacalia | desiderabilis, epiphytica |
| Pentaphorus | fascicularis, foliolosus, glutinosus |
| Peperomia | aceroana, alata, aldrinii, arifolia, armondii, armstrongii, augescens, balansana, barbarana, berteroana, blanda var. langsdorffii, brasiliensis, calophylla, campinasana, castelosensis, catharinae, circinnata var. circinnata, circinnata var. orbicularis, clivicola, collinsii, comarapana, coquimbensis, corcovadensis f. latifolia, corcovadensis f. longifolia, corcovadensis f. corcovadensis, cordigera, crinicaulis, crystallina, dahlstedtii, delicatula, diaphanoides, divaricata, doellii, duartei, elongata, emarginella, fernandeziana, galioides, glabella var. glabella, glabella var. nervulosa, glabella var. nigropunctata, glaziouii, gracilicaulis, hadrostachya, hernandiifolia, hilariana, hispidula var. sellowiana, hispidula var. hispidula, hispiduliformis, hydrocotyloides, ibiramana, inaequalilimba, increscens, lorentzii, loxensis, lyman-smithii var. macrophylla, lyman-smithii var. lyman-smithii, macrostachya, magnoliifolia, mandioccana, margaritifera, martiana, megapotamica, morungavana, nitida, nudifolia, nummularioides, obtusifolia, parvifolia, pellucida var. argentina, pellucida var. pellucida, pereirae, pereskiifolia, perlongicaulis, peruviana, pilicaulis, pseudobcordata, pseudoestrellensis, psilostachya var. angustifolia, psilostachya var. psilostachya, punicea, quadrifolia, ramboi, renifolia, retivenulosa, rhombea, rizzinii, rotundifolia, rubricaulis var. rubricaulis, rubricaulis var. parvifolia, rupestris var. rupestris, rupestris var. cordifolia, santaelisae, schenkiana, schwackei, skottsbergii, stroemfeltii, subemarginata, subretusa, subrubrispica, tenella, tetraphylla var. valantoides, tetraphylla var. americana, tetraphylla var. tetraphylla, tetraphylla var. tenera, theodori, tominana, transparens, trichocarpa, trinervis var. minor, trineura, trineuroides, urocarpa, velloziana |
| Peplonia | adnata, axillaris, hatschbachii |
| Pera | glabrata, obovata |
| Pereskia | aculeata, grandifolia, nemorosa, sacharosa |
| Perezia | atacamensis, bellidifolia, burkartii, calophylla, capito, carthamoides, catharinensis, ciliosa, delicata, dentata, eryngioides, fonkii, kingii, lactucoides, linearis, lyrata, magellanica, megalantha, multiflora ssp. sonchifolia, multiflora ssp. multiflora, nutans, pedicularidifolia, pilifera, pinnatifida, poeppigii, prenanthoides, pungens, recurvata ssp. beckii, recurvata ssp. recurvata, recurvata ssp. triceps, spathulata, squarrosa ssp. cubataensis, squarrosa ssp. squarrosa, volcanensis |
| Periandra | mediterranea |
| Perianthomega | vellozoi |
| Peritassa | campestris, hatschbachii |
| Perityle | emoryi |
| Persea | alba, americana, fulva, lingue, major, pyrifolia, venosa, willdenovii |
| Persicaria | humboldtiana, sylvestris |
| Petalostelma | andinum, garrapatense, robertii, sarcostemma |
| Peteniodendron | durlandii |
| Petiveria | alliacea var. alliacea, alliacea var. tetrandra |
| Petrea | volubilis |
| Petroravenia | eseptata |
| Petrorhagia | dubia, nanteuilii, prolifera |
| Petrosedum | orientale |
| Petroselinum | crispum |
| Petunia | altiplana, axillaris ssp. subandina, axillaris ssp. parodii, axillaris ssp. axillaris, bajeensis, bonjardinensis, correntina, exserta, inflata, integrifolia ssp. integrifolia, integrifolia ssp. depauperata, interior, occidentalis, reitzii, saxicola, scheideana, secreta, toropiensis |
| Peumus | boldus |
| Pfaffia | denudata, fruticulosa var. diffusa, fruticulosa var. fruticulosa, glabrata, gleasonii, glomerata, gnaphaloides, helichrysoides, jubata, ninae, nudicaulis, tuberosa |
| Pfeiffera | ianthothele |
| Phacelia | artemisioides, brachyantha, cumingii, pinnatifida, secunda var. pinnata, secunda var. secunda |
| Phaeostemma | hatschbachii, kelleri |
| Phalaris | amethystina, angusta, aquatica, arundinacea, canariensis, caroliniana, coerulescens, minor, paradoxa, platensis |
| Phalocallis | coelestis, geniculata, oreophila |
| Pharus | lappulaceus, latifolius |
| Phaseolus | augusti, lunatus var. sylvester, lunatus var. lunatus, vulgaris var. aborigineus |
| Phemeranthus | punae |
| Phenax | laevigatus, sonneratii |
| Philadelphus | inodorus |
| Philesia | magellanica |
| Philibertia | affinis, barbata, bicornuta, boliviana, boliviensis, campanulata, candolleana, castillonii, cionophora, coalita, discolor, escoipensis, gilliesii, latiflora, longistyla, lysimachioides, micrantha, mitophora, multiflora, nivea, parviflora, picta, solanoides, speciosa, stipitata, suberecta, subnivea, tomentosa, tubata, tucumanensis, volcanensis |
| Philippiella | patagonica |
| Philodendron | appendiculatum, camposportoanum, cordatum, crassinervium, curvilobum, eximium, hastatum, hederaceum, imbe, loefgrenii, martianum, meridionale, missionum, obliquifolium, propinquum, renauxii, rheophyticum, roseopetiolatum |
| Philyra | brasiliensis |
| Phippsia | wilczekii |
| Phlebodium | areolatum, aureum, decumanum |
| Phlebolobium | maclovianum |
| Phlegmariurus | acerosus, badinianus, biformis, christii, comans, flexibilis, fontinaloides, friburgensis, heterocarpon, hexastichus, linifolius, loefgrenianus, mandiocanus, mollicomus, phylicifolius, quadrifariatus, reflexus, saururus, sellowianus, silveirae, sotae, taxifolius |
| Phleum | alpinum, pratense |
| Phloeophila | nummularia, similis |
| Phoenix | canariensis |
| Phoradendron | argentinum, bathyoryctum, berteroanum, burkartii, chrysocladon, coriaceum, craspedophyllum, crassifolium, dipterum, ensifolium, habrostachyum, hexastichum, holoxanthum, inaequidentatum, mucronatum, obtusissimum, pellucidulum, perrottetii, piperoides, quadrangulare, rusbyi, tucumanensis, undulatum |
| Phragmites | australis |
| Phycella | amoena, angustifolia, arzae, australis, chilensis, cyrtanthoides, davidii, fulgens, germainii, lutea, maulensis, ornata, scarlatina |
| Phyla | betulifolia, nodiflora var. minor, nodiflora var. nodiflora, nodiflora var. reptans |
| Phyllachne | uliginosa |
| Phyllanthus | acuminatus, caroliniensis ssp. caroliniensis, caroliniensis ssp. guianensis, claussenii, eremitus, fluitans, glaziovii, hyssopifolioides, niruri, orbiculatus, perpusillus, pseudoguyanensis, pulcherrimus, ramillosus, riedelianus, sellowianus, subemarginatus, timboensis |
| Phyllitis | scolopendrium |
| Phylloscirpus | acaulis, boliviensis, deserticola |
| Phyllostylon | rhamnoides |
| Phymatidium | aquinoi, delicatulum var. delicatulum, delicatulum var. curvicepalum, falcifolium, hysteranthum, microphyllum var. herteri, microphyllum var. microphyllum |
| Physalis | angulata, cordata, lagascae, nicandroides, peruviana, pruinosa var. argentina, pubescens var. hygrophila, pubescens var. pubescens, subilsiana, victoriana, viscosa |
| Physaria | crassistigma, lateralis, mendocina, okanensis, pygmaea, urbaniana |
| Phytolacca | americana, bogotensis, chilensis, dioica, rivinoides, tetramera, thyrsiflora |
| Picradeniopsis | multiflora |
| Picramnia | camboita, excelsa, parvifolia, ramiflora, sellowii |
| Picrasma | crenata |
| Picrosia | cabreriana, longifolia |
| Pilea | acanthoides, aparadensis, astrogramma, cadierei, elegans, elliptica, flammula, hilariana, hyalina, hydra, jujuyensis, microphylla, pubescens, rhizobola, tenebrosa |
| Pilgerodendron | uviferum |
| Pilocarpus | pauciflorus, pennatifolius, spicatus |
| Pilosocereus | machrisii |
| Pilostyles | berteroi, blanchetii |
| Pilularia | americana |
| Pimenta | pseudocaryophyllus var. hoehnei, pseudocaryophyllus var. pseudocaryophyllus |
| Pimpinella | anisum |
| Pinguicula | antarctica, australandina, chilensis, nahuelbutensis |
| Pinnasa | amabilis, bergii, incurva, kurtzii, nana, pinnatifida, volubilis |
| Pintoa | chilensis |
| Pinus | caribaea, clausa, contorta, elliottii, glabra, halepensis, oocarpa, patula, pinaster, ponderosa, pseudostrobus, radiata, taeda |
| Piper | abutiloides, aduncum, aequale, alnoides, amalago, amplum, arboreum var. hirtellum, arboreum var. arboreum, arboreum var. falcifolium, asperilimbum, boucheanum, bradei, caldasianum, caldense, callosum, cernuum, corcovadensis var. longiracemosum, crassinervium, dilatatum, diospyrifolium, duartei, flavicans, frutescens, fuligineum, glabratum, grazielae, hassleri, hatschbachii, hemmendorffii, hieronymi, hispidum, hoffmannseggianum , kleinii, laevigatum, lanceolatum, lepturum, lhotzkyanum, macedoi, malacophyllum, mapirense, marginatum, mikanianum var. pilosius, mikanianum var. mikanianum, miquelianum, mollicomum, mosenii, ottonoides, peltatum, permucronatum, regnellii, reitzii, richardiifolium, rivinoides f. rivinoides, rivinoides f. magnifolium, solmsianum var. solmisianum, solmsianum var. hilarianum, subcinereum, tuberculatum, tucumanum, ulei, umbellatum, vicosanum, viminifolium, xylosteoides |
| Piptadenia | adiantoides, affinis, gonoacantha var. gonoacantha, gonoacantha var. inermis, paniculata var. aculeata, paniculata var. paniculata |
| Piptadeniopsis | lomentifera |
| Piptatherum | miliaceum |
| Piptocarpha | angustifolia, axillaris, densifolia, isotrichia, leprosa, macropoda ssp. crassifolia, notata, oblonga ssp. oblonga, oblonga ssp. lepidota, organensis, quadrangularis, ramboi, regnellii, rotundifolia, sellowii, tomentosa |
| Piptochaetium | alpinum, angolense, bicolor, brachyspermum, burkartianum, cabrerae, calvescens, confusum, cucullatum, depressum, fuscum, hackelii, hirtum, indutum, jubatum, lasianthum, lejopodum, medium, montevidense, napostaense, palustre, panicoides, ruprechtianum, stipoides var. stipoides, stipoides var. echinulatum, uruguense |
| Piriqueta | cistoides, grandifolia, morongii, nitida, ochroleuca, pampeana, racemosa, rosea, sidifolia, suborbicularis, subsessilis, tamberlikii, taubatensis |
| Pisonia | aculeata, ambigua, zapallo |
| Pisoniella | arborescens var. glabrata |
| Pistia | stratiotes |
| Pitavia | punctata |
| Pitcairnia | chiriguana, flammea var. floccosa, flammea var. flammea, flammea var. glabrior, oranensis, paraguayensis, saltensis |
| Pitraea | cuneato-ovata |
| Pittosporum | crassifolium, undulatum |
| Pityrogramma | calomelanos var. austroamericana, calomelanos var. aureoflava, calomelanos var. calomelanos, ebenea var. aurata, trifoliata |
| Plagiobothrys | armeriifolius, calandrinioides, collinus, congestus, corymbosus, foliosus, germainii, gracilis, muricatus, myosotoides, oppositifolius, pedicellaris, polycaulis, pratensis, procumbens, pulchellus, uliginosus, verrucosus |
| Plagiocheilus | tanacetoides |
| Plagiogyria | fialhoi |
| Plantago | arenaria, argentina, australis ssp. hirtella, australis ssp. cumingiana, australis ssp. australis, barbata ssp. barbata, barbata ssp. gigantea, berroi, bismarckii, brasiliensis, buchtienii, campestris, catharinea, commersoniana, coronopus, corvensis, densa, dielsiana, fernandezia, firma, grandiflora, guilleminiana, hatschbachiana, heterophylla, hispidula, humboldtiana, johnstonii, jujuyensis, lanceolata, litorea, lundborgii, major, maritima, monanthos var. muscoides, monanthos var. monanthos, monticola, moorei, myosuros, napiformis, nebularis, nubicola, orbignyana ssp. orbignyana, orbignyana ssp. pseudomollior, orbignyana ssp. niederleinii, pachyneura, patagonica, penantha, pretoana, rahniana, rancaguae, sempervivoides, sericea var. lanuginosa, sericea var. sericea, tandilensis, tehuelcha, tomentosa, truncata, tubulosa, turficola, ventanensis, venturii, weddelliana, zoellneriana |
| Plathymenia | reticulata |
| Platycyamus | regnellii |
| Platymiscium | floribundum var. floribundum, floribundum var. latifolium |
| Platypodium | elegans |
| Platyrhiza | quadricolor |
| Platystele | oxyglossa |
| Platythelys | pedicellata, platensis, schlechteriana |
| Plazia | cheiranthifolia, daphnoides |
| Plectocephalus | atacamensis, bridgesii, bulbosus, formosus, gayanus, illapelinus, monocephalus, tweediei |
| Plectrocarpa | rougesii, tetracantha |
| Plenckia | integerrima, microcarpa, populnea |
| Pleocarphus | revolutus |
| Pleopeltis | astrolepis, bryopoda, furcata, hirsutissima, lepidopteris, macrocarpa, masafuerae, minima, pinnatifida, pleopeltidis, pleopeltifolia, tweediana, x cerro-altoensis |
| Pleroma | caissara, dubium, dusenii, floribundum, frigidulum, goldenbergii, granulosum, guartelaensis, hatschbachii, heteromallum, hospitum, joelsilvae, kleinii, littorale, martiale, martiusianum, marumbiense, mutabile, oleifolia, pilosum, raddianum, ramboi, reitzii, riedelianum, sellowianum, semidecandrum, setosociliatum, trichopodum, ursinum, urvilleanum |
| Pleurophora | patagonica, polyandra, pungens, pusilla, saccocarpa |
| Pleurostachys | arcuata, distichophylla, foliosa, gaudichaudii, orbigniana, puberula, stricta, tenuiflora, urvillei |
| Plinia | cauliflora, complanata, cordifolia, edulis, hatschbachii, peruviana, pseudodichasiantha, rivularis |
| Pluchea | chingoyo, laxiflora, microcephala, oblongifolia, sagittalis |
| Plumbago | caerulea, zeylanica |
| Plumeria | rubra |
| Poa | acinaciphylla, aequigluma, alopecurus ssp. shuka, alopecurus ssp. alopecurus, alopecurus ssp. fuegiana, annua, arctica, arechavaletae, atropidiformis var. patagonica, atropidiformis var. atropidiformis, bergii, bonariensis, bradei, bulbosa ssp. vivipara, cabreriana, calchaquiensis, chamaeclinos, compressa, cumingii, darwiniana, denudata, dolichophylla, durifolia, flabellata, glaberrima, glauca, grisebachii, gymnantha, hachadoensis var. hachadoensis, hieronymi, holciformis, hubbardiana, huecu, humillima, infirma, iridifolia, kurtzii, laetevirens, lanigera, lanuginosa var. patagonica, lanuginosa var. lanuginosa, lanuginosa var. neuquina, lepidula, ligularis var. resinulosa, ligularis var. ligularis, lilloi, macusaniensis, marticorenae, mendocina, myriantha, nemoralis, nubensis, palustris, paposana, pearsonii, pedersenii, perligulata, pfisteri, pilcomayensis, planifolia, plicata, pratensis ssp. alpigena, pratensis ssp. pratensis, pratensis ssp. angustifolia, ragonesei, reitzii, scaberula ssp. parviceps, scaberula, schizantha, secunda ssp. juncifolia, secunda ssp. secunda, sellowii, serpaiana, spiciformis var. ibari, spiciformis var. spiciformis, stenantha, stuckertii, tristigmatica, trivialis, tucumana, umbrosa, uruguayensis, yaganica |
| Podagrostis | sesquiflora |
| Podanthus | mitiqui, ovatifolius |
| Podocarpus | brasiliensis, lambertii, nubigenus, parlatorei, salignus, sellowii var. sellowii, sellowii var. angustifolia |
| Podocoma | bellidifolia, blanchetiana, hieracifolia, hirsuta, spegazzinii |
| Podostemum | comatum, distichum, irgangii, muelleri, rutifolium, scaturiginum, wedellianum |
| Podranea | ricasoliana |
| Poecilanthe | parviflora |
| Pogoniopsis | schenckii |
| Pogonopus | tubulosus |
| Poidium | ambiguum, brachychaetum, brasiliensis, calotheca, itatiaiae, juergensii var. juergensii, juergensii var. angustilemma, latifolium, serranum, uniolae |
| Poikilacanthus | glandulosus |
| Poiretia | angustifolia, latifolia, longipes, tetraphylla |
| Poissonia | heterantha, hypoleuca |
| Polemonium | micranthum |
| Polyachyrus | annuus, carduoides, cinereus, fuscus, gayi, poeppigii ssp. poeppigii, poeppigii ssp. multifidus, sphaerocephalus |
| Polybotrya | cylindrica, goyazensis, semipinnata |
| Polycarpaea | corymbosa, hassleriana |
| Polycarpon | tetraphyllum ssp. tetraphyllum, tetraphyllum ssp. apurense |
| Polygala | adenophylla var. parvifolia, altomontana, aphylla, campestris, celosioides, cneorum, densiracemosa, equisetoides, glaziouii, glochidiata, gracilis, hygrophila, leucantha, lycopodioides, monosperma, moquiniana, poaya, pumila, riograndensis, selaginoides, sellowiana, solieri, subverticillata, telephium, tenuis |
| Polygonum | acuminatum, amphibium, arenarium, aviculare, bowenkampii, brasiliense, campanulatum, capitatum, convolvulus, delfini, diospyrifolium, ferrugineum, glabrum, hispidum, hydropiper, hydropiperoides var. hydropiperoides, hydropiperoides var. setaceum, lapathifolium, maritimum, meisnerianum, minus, orientale, paraguayense, persicaria, punctatum, rubricaule, stelligerum, stypticum |
| Polylepis | australis, crista-galli, hieronymi, rugulosa, tarapacana, tomentella |
| Polyphlebium | angustatum, capillaceum, diaphanum, exsectum, hymenophylloides, ingae, philippianum |
| Polypogon | australis, cachinalensis, chilensis, elongatus var. longearistatus, elongatus var. elongatus, elongatus var. strictus, exasperatus var. kuntzei, exasperatus var. exasperatus, imberbis, interruptus, linearis, magellanicus, maritimus, monspeliensis, parvulus, viridis |
| Polypsecadium | arnottianum, brasiliense, gilliesii, grandiflorum, harmsianum, litorale, magellanicum, tucumanense, zoellneri |
| Polystachya | bradei, caespitosa, caracasana, concreta, estrellensis, foliosa, micrantha, pinicola, rupicola |
| Polystichum | andinum, caudescens, chilense, laniceps, lionelii, mohrioides, montevidense, multifidum, platylepis, platyphyllum, plicatum, pycnolepis, subintegerrimum, tetragonum |
| Polytaenium | cajenense, citrifolium, feei, lineatum |
| Pomaria | parviflora, pilosa, rubicunda var. hauthalii, rubicunda var. rubicunda, stipularis |
| Pombalia | atropurpurea, bicolor, bigibbosa, brevicaulis, calceolaria, chodatii, communis, glauca, graminifolia, lanata, leucopogon, longistyla, oppositifolia, paraguariensis, parviflora, rivalis, serrata, velutina |
| Pontederia | azurea, cordata var. cordata, crassipes, gigantea, meyeri, ovalis, rotundifolia, sagittata, subovata |
| Ponthieva | hassleri, mandonii var. mandonii |
| Populus | alba, deltoides, nigra |
| Porcelia | macrocarpa |
| Porlieria | chilensis, microphylla |
| Porophyllum | angustissimum, cabrerae, curticeps, hasslerianum, iruyense, lanceolatum, linifolium, obscurum, oppositifolium, riparium, ruderale, spathulatum |
| Portulaca | amilis, argentinensis, chacoana, confertifolia var. cordobensis, confertifolia var. confertifolia, cryptopetala, echinosperma, elongata var. elongata, elongata var. pedicellata, eruca, fulgens, gilliesii, grandiflora, halimoides ssp. -, hatschbachii, meyeri var. rodrigoi, meyeri var. meyeri, mucronata var. mucronata, mucronata var. paraguariensis, mucronulata var. robusta, mucronulata var. mucronulata, obtusa, obtusifolia var. rubrisperma, obtusifolia var. obtusifolia, oleracea, papulifera, papulosa, perennis, philippii, ragonesei, rotundifolia, stellulato-tuberculata, thellusonii, tingoensis var. tingoensis, tingoensis var. andina, umbraticola |
| Posoqueria | latifolia, palustris |
| Potamogeton | crispus, ferrugineus, gayi, illinoensis, linguatus, montevidensis, polygonus, pusillus, spirilliformis, ulei |
| Potentilla | anglica, indica, norvegica, recta, reptans |
| Pourouma | guianensis |
| Pouteria | beaurepairei, bullata, caimito, fragrans, gardneri, glomerata, guianensis, ramiflora, torta |
| Pouzolzia | amambaiensis |
| Pozoa | coriacea, volcanica |
| Pradosia | brevipes, lactescens |
| Praxelis | clematidea, grandiflora, kleinioides, missiona, ostenii, pauciflora , sanctopaulensis |
| Prescottia | densiflora, lancifolia, montana, oligantha, ostenii, phleoides, plantaginifolia, stachyodes |
| Presliophytum | incanum, malesherbioides, sessiliflorum |
| Prestonia | calycina, coalita, cyaniphylla, dusenii, erecta, lagoensis, quinquangularis, tomentosa |
| Primula | comberi, magellanica, malacoides |
| Priogymnanthus | hasslerianus |
| Pristimera | celastroides |
| Priva | boliviana |
| Prockia | crucis |
| Promenaea | guttata, rollisonii, stapelioides, xanthina |
| Proserpinaca | palustris |
| Prosopanche | americana, bonacinae, cocuccii, demogorgoni |
| Prosopidastrum | angusticarpum, benthami, dehiscens, globosum, gracile, striatum |
| Prosthechea | aemula, bulbosa, fausta, fragrans, glumacea, papilio, punctifera, pygmaea, vespa |
| Protium | heptaphyllum, kleinii |
| Proustia | cuneifolia ssp. tipia, cuneifolia ssp. mendocina, cuneifolia ssp. cinerea, cuneifolia ssp. mollis, cuneifolia ssp. cuneifolia, pyrifolia |
| Prumnopitys | andina |
| Prunella | laciniata, vulgaris |
| Prunus | armeniaca, avium, brasiliensis, brittoniana, cerasus, domestica, instititia, laurocerasus, ligustrina, mahaleb, myrtifolia, oleifolia, omissa, padus, persica var. persica, ravenii, ulei |
| Pseudabutilon | aristulosum, balansae, benense, callimorphum var. callimorphum, callimorphum var. intermedium, cinereum, pedunculatum, virgatum |
| Pseudalbizzia | burkartiana, edwallii, inundata, niopoides, polycephala |
| Pseudananas | sagenarius |
| Pseudechinolaena | polystachya |
| Pseudelephantopus | spiralis |
| Pseuderanthemum | australe, heterophyllum, riedelianum |
| Pseudobombax | argentinum, grandiflorum, longiflorum, majus, marginatum, tomentosum |
| Pseudocyclanthera | australis |
| Pseudognaphalium | aldunateoides, cabrerae, cheiranthifolium, cymatoides, dysodes, gaudichaudianum, gayanum, glanduliferum, jujuyense, lacteum, landbeckii, leucopeplum, luteoalbum, munoziae, psilophyllum, remyanum, tarapacanum, viravira, yalaense |
| Pseudogynoxys | benthamii, chenopodioides, cordifolia |
| Pseudolmedia | hirtula, laevigata |
| Pseudolycopodiella | carnosa, meridionalis, paradoxa |
| Pseudopiptadenia | warmingii |
| Pseudoplantago | friesii |
| Pseudotrimezia | juncifolia |
| Pseudotsuga | menziesii |
| Psidium | araucanum, australe var. australe, bergianum, cattleianum, grandifolium, guajava, guineense, hians, laruotteanum, longipetiolatum, missionum, myrtoides, oligospermum, ooideum, ovale, reptans, rufum var. widgrenianum, rufum var. rufum, salutare var. salutare, salutare var. mucronatum, salutare var. sericeum, salutare var. decussatum, sartorianum, striatulum |
| Psiguria | ternata |
| Psilocarphus | brevissimus, tenellus var. globiferus |
| Psilochilus | dusenianus, modestus |
| Psilotum | nudum |
| Psittacanthus | cordatus, dichroos |
| Psophocarpus | tetragonolobus |
| Psoralea | pinnata var. speciosa |
| Psychotria | anceps, brachyceras, brachypoda, capillacea, capitata, carthagenensis, dusenii, fluminensis, formosa, forsteronioides, fractistipula, gracilenta, hastisepala, hoffmannseggiana, laciniata, leiocarpa, lupulina, mapourioides, nemorosa, nitidula, nuda, pubigera, stachyoides, suterella |
| Pterichis | boliviana, multiflora |
| Pteridium | esculentum ssp. gryphus, esculentum var. arachnoideum, esculentum var. paedomorficum |
| Pteris | altissima, angustata, berteroana, biaurita, brasiliensis, chilensis, cretica var. laeta, cretica, decurrens, deflexa, denticulata var. tristicula, denticulata var. denticulata, ensiformis, ensiformis f. victoriae, exigua, famatinensis, inermis, leptophylla, multifida, nipponica, organensis, plumula, podophylla, propinqua, semiadnata, sericea, sotae, splendens, tremula, tripartita, vittata |
| Pteris | |
| Pterocactus | araucanus, australis, fischeri, gonjianii, hickenii, megliolii, neuquensis, reticulatus, tuberosus f. tuberosus, tuberosus f. lelongii, valentinii |
| Pterocarpus | rohrii, santalinoides |
| Pterocarya | stenoptera |
| Pterocaulon | alopecuroides, angustifolium, balansae, cabrerae, cordobense, lanatum, lorentzii, polypterum, polystachyum, purpurascens, rugosum, virgatum |
| Pteroglossa | glazioviana, lurida, luteola, macrantha, magnifica, rhombipetala, roseoalba |
| Pterogyne | nitens |
| Pterolepis | buraeavii, glomerata, repanda |
| Pteropepon | parodii |
| Ptilochaeta | densiflora, nudipes |
| Puccinellia | argentinensis, biflora, frigida, glaucescens, magellanica, mendozina, parvula, preslii, pusilla, skottsbergii |
| Pueraria | montana var. lobata |
| Puna | bonnieae, clavarioides, subterranea |
| Puya | alpestris ssp. alpestris, alpestris ssp. zoellneri, assurgens, berteroniana, boliviensis, bravoi, castellanosii, chilensis, coerulea var. monteroana, coerulea var. intermedia, coerulea var. violacea, coerulea var. coerulea, dyckioides, gilmartiniae, harmsii, hofstenii, lilloi, micrantha, mirabilis, novarae, smithii, spathacea, venusta, vervoorstii, volcanensis, weberiana, yakespala |
| Pycnophyllum | bryoides, convexum, macropetalum, molle, spathulatum, tetrastichum |
| Pyracantha | angustifolia, coccinea, crenulata, koidzumii |
| Pyrolirion | tubiflorum |
| Pyrostegia | venusta |
| Pyrrhocactus | aspillagae, bulbocalyx, catamarcensis, chilensis var. albidiflorus, chilensis var. chilensis, confinis, crispus, curvispinus, echinus, engleri, eriosyzoides, floccosus, garaventai, heinrichianus, kattermannii, marksianus, pachacoensis, paucicostatus, philippianus, pilispinus, pygmaeus, reconditus, sanjuanensis, simulans, strausianus, taltalensis, tuberisulcatus, umadeave |
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