- Chavica reinwardtiana
- Piper abalienatum
- Piper abbadianum
- Piper abbreviatum
- Piper abellinum
- Piper aberrans
- Piper abutiloides
- Piper accedens
- Piper acceptum
- Piper achiguiricum
- Piper achoteanum
- Piper achotense
- Piper achromatolepis
- Piper achupallasense
- Piper acre
- Piper acutifolium
- Piper acutilimbum
- Piper acutinusculum
- Piper acutiusculum
- Piper acutulum
- Piper adamatum
- Piper addisonii
- Piper adenandrum
- Piper adenophlebium
- Piper admirabile
- Piper adreptum
- Piper adseptrum
- Piper aduncum
- Piper aequale
- Piper aereum
- Piper aeruginosibaccum
- Piper affectans
- Piper affictum
- Piper aguadanum
- Piper aguadulcense
- Piper aguadulcensense
- Piper agusanense
- Piper alajuelanum
- Piper alatabaccum
- Piper alatipetiolatum
- Piper albamentum
- Piper albanense
- Piper albiciliatum
- Piper albidiflorum
- Piper albidopunctatum
- Piper albidum
- Piper albogranulatum
- Piper albopapillatum
- Piper albopilosum
- Piper albozonatum
- Piper albuginiferum
- Piper alegreanum
- Piper aleyreanum
- Piper allardii
- Piper allisum
- Piper alnoides
- Piper altevaginans
- Piper alveolatum
- Piper amalago
- Piper amalgo
- Piper amapaense
- Piper amapense
- Piper amboinense
- Piper amoenum
- Piper amonifolium
- Piper amparoense
- Piper amphibracteum
- Piper amphioxys
- Piper amphitrichum
- Piper amphoricarpum
- Piper amplectenticaule
- Piper amplum
- Piper anastylum
- Piper andinum
- Piper andreanum
- Piper androgynum
- Piper angamarcanum
- Piper anguilanum
- Piper angustipeltatum
- Piper angustum
- Piper anisitsii
- Piper anisophyllum
- Piper anisopleurum
- Piper anisotrichum
- Piper anisum
- Piper annulatispicum
- Piper anonaefolium
- Piper anonifolium
- Piper anostachyum
- Piper antioquiense
- Piper antirheumaticum
- Piper apodum
- Piper appendiculatum
- Piper apurimacanum
- Piper apurimacarum
- Piper apus
- Piper aquilibaccum
- Piper aramanum
- Piper araneatum
- Piper araquei
- Piper arbores-crassae
- Piper arboreum
- Piper arborioccupans
- Piper arcessitum
- Piper archeri
- Piper arcteacuminatum
- Piper arcuatile
- Piper arcuatispicum
- Piper arcuatum
- Piper arduum
- Piper arebelaezii
- Piper areolatum
- Piper areponganum
- Piper arfakanum
- Piper arfakianum
- Piper argentamentum
- Piper argyritis
- Piper argyrophyllum
- Piper arichogynum
- Piper arieianum
- Piper aripense
- Piper aristolochiphyllum
- Piper armatum
- Piper aromaticum
- Piper arrectispicum
- Piper arreptum
- Piper artanthe
- Piper artanthopse
- Piper articulatum
- Piper articulosum
- Piper arundinetorum
- Piper ascendentispicum
- Piper asclepiadifolium
- Piper aserrianum
- Piper asperilimbum
- Piper asperiusculum
- Piper asperulibaccum
- Piper asplundii
- Piper asterostigmum
- Piper asterotrichum
- Piper asymmetricum
- Piper atantillum
- Piper atrobaccum
- Piper atroglandulosum
- Piper atropremnon
- Piper atropunctatum
- Piper attenuatamentum
- Piper attenuatum
- Piper augustum
- Piper aulacospermum
- Piper auriculiferum
- Piper auriculifolium
- Piper aurilimbum
- Piper auritifolium
- Piper auritum
- Piper austinii
- Piper austrocaledonicum
- Piper austromexicanum
- Piper austrosinense
- Piper avelini
- Piper avellanum
- Piper awaensis
- Piper azuaiense
- Piper azupizanum
- Piper azupizuanum
- Piper baccans
- Piper baccatum
- Piper baclei
- Piper baculiferum
- Piper baezanum
- Piper baezense
- Piper baguionum
- Piper bahianum
- Piper bajanum
- Piper bakeri
- Piper balsapuertanum
- Piper bangii
- Piper bantamense
- Piper baptisianum
- Piper baramense
- Piper barbatum
- Piper barbicuspe
- Piper barbirostre
- Piper barbosanum
- Piper barbulatum
- Piper barcoense
- Piper barkleyi
- Piper barretoi
- Piper bartlingianum
- Piper basilobatum
- Piper basilobltum
- Piper batanense
- Piper beccans
- Piper begoniicolor
- Piper begoniiforme
- Piper bellidifolium
- Piper belloi
- Piper bellum
- Piper belterraense
- Piper bennettianum
- Piper bermejanum
- Piper bernouillii
- Piper berteroanum
- Piper betle
- Piper biauritum
- Piper bicaudatum
- Piper bicolor
- Piper biolleyi
- Piper bipunctatum
- Piper biritak
- Piper bisasperatum
- Piper biseriatum
- Piper blakei
- Piper blattarum
- Piper blepharilepidum
- Piper boehmeriifolium
- Piper bogotense
- Piper boissieranum
- Piper boivinii
- Piper bojonyum
- Piper bolanicum
- Piper bolivaranum
- Piper bolivianum
- Piper bonii
- Piper boquetense
- Piper boquianum
- Piper borbonense
- Piper borneense
- Piper bosnicanum
- Piper boucheanum
- Piper bourgeaui
- Piper bowiei
- Piper brachipilum
- Piper brachistopodum
- Piper brachypetiolatum
- Piper brachypodon
- Piper brachypus
- Piper brachystylum
- Piper brachytrichum
- Piper bradei
- Piper brasiliense
- Piper brassii
- Piper bredemeyeri
- Piper brenesii
- Piper brevantherum
- Piper brevesanum
- Piper brevestrigillosum
- Piper breviamentum
- Piper brevicuspe
- Piper brevifolium
- Piper brevispicum
- Piper brevistigmum
- Piper brevistipatum
- Piper brevistrigillosum
- Piper brisasense
- Piper brongniartii
- Piper brownsbergense
- Piper bryogetum
- Piper buchii
- Piper bullatilimbum
- Piper bullatum
- Piper bullosum
- Piper bullulaefolium
- Piper bullulatum
- Piper buruanum
- Piper buturocanum
- Piper cabagranum
- Piper cabaianum
- Piper caballetense
- Piper caballo-cochanum
- Piper cabralanum
- Piper cachimboense
- Piper caducibracteum
- Piper cainarachiamum
- Piper cainarachianum
- Piper cajamarcanum
- Piper cajambrense
- Piper caladiifolium
- Piper calamistratum
- Piper calanyanum
- Piper calanyanun
- Piper calcaratum
- Piper calcariforme
- Piper calcariformis
- Piper calceolarium
- Piper caldasianum
- Piper caldense
- Piper caliendriferum
- Piper callosum
- Piper calocoma
- Piper calophyllum
- Piper calvescentinerve
- Piper calvibaccum
- Piper calvirameum
- Piper cambessedesii
- Piper cambodianum
- Piper camiloi
- Piper campanum
- Piper camphoriferum
- Piper campii
- Piper camptostachys
- Piper canaliculatum
- Piper canaliculum
- Piper candelarianum
- Piper candelarium
- Piper candelosum
- Piper candollei
- Piper caninum
- Piper canovillosum
- Piper capacibracteum
- Piper capense
- Piper capillipes
- Piper capillistipes
- Piper capitarianum
- Piper captum
- Piper caquetanum
- Piper caracasanum
- Piper caracolanum
- Piper cararense
- Piper carizalanum
- Piper carlosii
- Piper carminis
- Piper carnibracteum
- Piper carniconnectivum
- Piper carpinifolium
- Piper carpinteranum
- Piper carpunya
- Piper carrapanum
- Piper carrilloanum
- Piper cartagoanum
- Piper casapiense
- Piper castanhalense
- Piper casteloense
- Piper castroanum
- Piper cataractarum
- Piper cativalense
- Piper catripense
- Piper caucaense
- Piper caucasanum
- Piper caudatifolium
- Piper cavalcantei
- Piper cavendishioides
- Piper cayabanum
- Piper cayumbanum
- Piper ceibense
- Piper cejanum
- Piper celebicum
- Piper celer
- Piper celsum
- Piper celtidiforme
- Piper cenocladum
- Piper centroense
- Piper ceramicum
- Piper cercidiphyllum
- Piper cernuum
- Piper cerroianum
- Piper certeguiense
- Piper chaba
- Piper chairecoides
- Piper chamissonis
- Piper chanchamayanum
- Piper chandocanum
- Piper changuinolanum
- Piper chapini
- Piper chavicoides
- Piper chiadoense
- Piper chiangdaoense
- Piper chimborazoense
- Piper chimonanthifolium
- Piper chinantlense
- Piper chiquihuitense
- Piper chiriquinum
- Piper chirripoense
- Piper chlorostachyum
- Piper choapamense
- Piper christyi
- Piper chromatolepis
- Piper chrysophlebium
- Piper chrysostachyum
- Piper chuarense
- Piper chumboense
- Piper churruyacoanum
- Piper churumaya
- Piper churumayu
- Piper cicatriculosum
- Piper ciliatifolium
- Piper ciliatum
- Piper cilibracteum
- Piper cililimbum
- Piper ciliomarginatum
- Piper cincinnatum
- Piper cinereum
- Piper cineroramulum
- Piper cingens
- Piper cinicinnatum
- Piper ciniflonis
- Piper cirratum
- Piper cisnerosense
- Piper cispontinum
- Piper clandicans
- Piper clathratum
- Piper claudii
- Piper claussenianum
- Piper clavuliger
- Piper clypeatum
- Piper coactoris
- Piper coalcomanum
- Piper coariense
- Piper coastaepilum
- Piper cobarianum
- Piper cochleatum
- Piper cocornanum
- Piper coeloneurum
- Piper cogolloi
- Piper coilostachyum
- Piper colayense
- Piper colipanum
- Piper colligatispicum
- Piper colon-insulae
- Piper colonense
- Piper colotlipanense
- Piper colubrinum
- Piper comasense
- Piper comatum
- Piper come
- Piper commutatum
- Piper compactum
- Piper comptonii
- Piper concavum
- Piper concepcionis
- Piper concinnifolium
- Piper concretiflorum
- Piper conditum
- Piper condotense
- Piper condotoense
- Piper conejoense
- Piper confertinodum
- Piper confusionis
- Piper confusum
- Piper conispicum
- Piper conjecturale
- Piper conquistanum
- Piper consanguineum
- Piper conspicum
- Piper constanzanum
- Piper contrariifolius
- Piper contraverrugosa
- Piper conversum
- Piper convertabilis
- Piper copacabanense
- Piper copeyanum
- Piper coralfalgense
- Piper corcovadense
- Piper cordatilimbum
- Piper cordatum
- Piper cordilimbum
- Piper cordoncillo
- Piper cordulatum
- Piper corei
- Piper coriaceilimbum
- Piper corintoanum
- Piper cornifolium
- Piper coronanum
- Piper coronatibracteum
- Piper corozalanum
- Piper corozolanum
- Piper corpulentispicum
- Piper corrugatum
- Piper cortabescens
- Piper coruscans
- Piper costatum
- Piper costulatum
- Piper cowanii
- Piper crassinervium
- Piper crassipedunculum
- Piper crassipes
- Piper crassistilum
- Piper cremii
- Piper crenatifolium
- Piper crenulatum
- Piper criniovarium
- Piper crispatum
- Piper cristalinanum
- Piper cristalinum
- Piper cristinanum
- Piper cuatrecasasii
- Piper cubarralense
- Piper cubataonum
- Piper cubeba
- Piper cufodontii
- Piper culebranum
- Piper cumaralense
- Piper cumbasonum
- Piper cumbotianum
- Piper cumbotianym
- Piper cuniculorum
- Piper cunninghamii
- Piper cupreatum
- Piper curridabatanum
- Piper curtifolium
- Piper curtilimbum
- Piper curtirachis
- Piper curtisii
- Piper curtispicum
- Piper curtistilum
- Piper curvamentum
- Piper curvatipes
- Piper curvatum
- Piper curvinervium
- Piper curvipilum
- Piper cuspidatum
- Piper cuspidibracteatum
- Piper cuspidilimbum
- Piper cuspidispicum
- Piper cutucuense
- Piper cuyabanum
- Piper cuyunianum
- Piper cuzcoense
- Piper cyanophyllum
- Piper cyphophyllopse
- Piper cyphophyllum
- Piper cyprium
- Piper cyrtopodon
- Piper cyrtostachys
- Piper dactylostachyum
- Piper dactylostigmum
- Piper daguanum
- Piper daniel-gonzalezii
- Piper danieli-gonzalezii
- Piper darienense
- Piper dasyoura
- Piper dasypodum
- Piper dasypogon
- Piper davaoense
- Piper davidianum
- Piper davidsoniae
- Piper davidsonii
- Piper decipiens
- Piper decurrens
- Piper deductum
- Piper deflexispicum
- Piper degeneri
- Piper delectans
- Piper delicatum
- Piper deliciasanum
- Piper delineatum
- Piper delirioi
- Piper deltoideiocarpum
- Piper demeraranum
- Piper demerararum
- Piper demoratum
- Piper dendrophilum
- Piper dennisii
- Piper densiciliatum
- Piper denudatum
- Piper depressibaccum
- Piper desparipilum
- Piper desultorium
- Piper detonsum
- Piper dezertense
- Piper dichotomum
- Piper dichroostachyum
- Piper diffamatum
- Piper diffundum
- Piper diguaense
- Piper dilatatum
- Piper dimetrale
- Piper dimorpha
- Piper diospyrifolium
- Piper dipterocarpinum
- Piper diquisanum
- Piper discolor
- Piper discriminatum
- Piper disjunctum
- Piper disparifolium
- Piper disparipes
- Piper disparipilum
- Piper disputabilis
- Piper dissimile
- Piper dissimulans
- Piper distichum
- Piper distigmatum
- Piper divaricatiranum
- Piper divaricatum
- Piper diversifolium
- Piper diversipilum
- Piper divisurae
- Piper divortans
- Piper divulgatum
- Piper djabia
- Piper dodsonii
- Piper dolichostylum
- Piper dolichotrichum
- Piper dolichotricum
- Piper donnell-smithii
- Piper dotanum
- Piper dramanum
- Piper dryadum
- Piper duartei
- Piper dubitativum
- Piper ducis
- Piper duckei
- Piper dukei
- Piper dulce
- Piper dumiformans
- Piper dumosum
- Piper dunlapii
- Piper dunstervilleorum
- Piper duracimum
- Piper durilignum
- Piper durilimbum
- Piper durvilleanum
- Piper dussii
- Piper echeverrianum
- Piper echinocaule
- Piper echinovarium
- Piper ecuadorense
- Piper edurum
- Piper edwallii
- Piper ejuncidum
- Piper el-bancoanum
- Piper el-caranyanum
- Piper el-paramoense
- Piper elbertii
- Piper eldoradens
- Piper ellipticibaccum
- Piper ellipticifolium
- Piper elliptico-lanceolatum
- Piper elliptico-obtusifolium
- Piper ellsworthii
- Piper elmeri
- Piper emancipationis
- Piper emendatum
- Piper emmerichianum
- Piper emollitum
- Piper emygdioi
- Piper enckeaespicum
- Piper enganyanum
- Piper ensifolium
- Piper entradense
- Piper epigynium
- Piper epunctatum
- Piper erectamentum
- Piper erecticaule
- Piper erectipilum
- Piper erectum
- Piper eriocladum
- Piper eriopodon
- Piper erubescentispicum
- Piper escaleranum
- Piper escuadranum
- Piper esperancanum
- Piper estrellense
- Piper eucalyptifolium
- Piper eucalyptiphyllum
- Piper eucalyptophyllum
- Piper eupodum
- Piper euryphyllum
- Piper eustylum
- Piper evasum
- Piper evingeri
- Piper ewanii
- Piper exactum
- Piper excavatum
- Piper excessum
- Piper exiguicaule
- Piper exiguispicum
- Piper expolitum
- Piper exsectum
- Piper factum
- Piper fadyenii
- Piper faecatum
- Piper fagifolium
- Piper falanense
- Piper falcigerum
- Piper falcispicum
- Piper falculispicum
- Piper fallens
- Piper fanshawei
- Piper faroense
- Piper fastiditum
- Piper febrifugum
- Piper felix-lingum
- Piper fenianum
- Piper ferreyrae
- Piper figlinum
- Piper filipedunculum
- Piper filistilum
- Piper fimbriulatum
- Piper firmini
- Piper firmolimbum
- Piper firmum
- Piper fischerianum
- Piper flagellicuspe
- Piper flavescens
- Piper flavibaccum
- Piper flavicans
- Piper flaviflorum
- Piper flavimarginatum
- Piper flavirameum
- Piper flaviramum
- Piper fockei
- Piper fonteboanum
- Piper foreroi
- Piper formicitolerans
- Piper formosum
- Piper forstenii
- Piper fortalezanum
- Piper fortunaense
- Piper fortunyoanum
- Piper foveolatum
- Piper fragile
- Piper francoae
- Piper francobilleanum
- Piper francovilleanum
- Piper fresnoense
- Piper friedrichsthalii
- Piper froesii
- Piper frostii
- Piper frustratum
- Piper frutescens
- Piper fuertesii
- Piper fulgidum
- Piper fuligineum
- Piper fuliginosum
- Piper fulvescenticaule
- Piper fundacionense
- Piper fungiforme
- Piper fusagasuganum
- Piper fusco-punctulatum
- Piper fuscobracteatum
- Piper futuri
- Piper gabrielianum
- Piper galeatum
- Piper galicianum
- Piper gamitanacochanum
- Piper garagaranum
- Piper gardnerii
- Piper gaudichaudianum
- Piper gelalae
- Piper generalense
- Piper gentryi
- Piper genuflexum
- Piper georginum
- Piper gibbilimbum
- Piper gibbosum
- Piper gilvescens
- Piper gilvibaccum
- Piper giordanoi
- Piper glabrescens
- Piper glabribaccum
- Piper glabribracteum
- Piper glabrum
- Piper glanduligerum
- Piper glandulosissimum
- Piper glaucescens
- Piper godetii
- Piper goeldii
- Piper goesii
- Piper gonagricum
- Piper gonocarpum
- Piper gorgonillense
- Piper gracile
- Piper gracilipes
- Piper graciliramosum
- Piper graeffei
- Piper grande
- Piper grandilimbum
- Piper grandipedunculum
- Piper grandispicum
- Piper grantii
- Piper granulatum
- Piper granuligerum
- Piper gratum
- Piper griffithii
- Piper griseocaule
- Piper griseolimbum
- Piper griseum
- Piper gualeanum
- Piper guanacostense
- Piper guanahacabibense
- Piper guapense
- Piper guaremalesarum
- Piper guazacapanense
- Piper guianense
- Piper guineense
- Piper gurupanum
- Piper gutierrezii
- Piper hainanense
- Piper halconense
- Piper halesiaefolium
- Piper hamiltonii
- Piper hancei
- Piper hapnium
- Piper harlingii
- Piper harmandii
- Piper hartii
- Piper hartwegianum
- Piper hassleri
- Piper hastularum
- Piper hastulorum
- Piper hatschbachii
- Piper haughtii
- Piper hayneanum
- Piper hebetifolium
- Piper hederaceum
- Piper hemmendorffii
- Piper heptandrum
- Piper hermannii
- Piper hermes
- Piper hermosanum
- Piper herrerae
- Piper heterocarpum
- Piper heterolrichum
- Piper heterophlebium
- Piper heterophyllum
- Piper heterotrichum
- Piper hexandrum
- Piper heydei
- Piper hians
- Piper hieronymi
- Piper hillianum
- Piper hirtellipetiolum
- Piper hirtellum
- Piper hirtilimbum
- Piper hispidinervum
- Piper hispidum
- Piper hodgei
- Piper hoehnei
- Piper hoffmannseggianum
- Piper holdridgeanum
- Piper holdridgeianum
- Piper holdrigeianum
- Piper holtii
- Piper holtonii
- Piper hondonadense
- Piper hongkongense
- Piper hookeri
- Piper hookerianum
- Piper hosokawae
- Piper hostmannianum
- Piper huacachianum
- Piper huallaganum
- Piper huantanum
- Piper huigranum
- Piper huilanum
- Piper humarigaudens
- Piper humaytanum
- Piper humillimum
- Piper humistratum
- Piper hydrolapathum
- Piper hylebates
- Piper hylophilum
- Piper hymenophyllum
- Piper hypoglaucum
- Piper hypoleucum
- Piper ilheusense
- Piper illautum
- Piper immite
- Piper immutatum
- Piper imparipes
- Piper imperiale
- Piper implicans
- Piper impube
- Piper inaequale
- Piper inauspicatum
- Piper incanum
- Piper inclemens
- Piper incomptum
- Piper incurvum
- Piper indecorum
- Piper indianonum
- Piper indiciflexum
- Piper inexorabile
- Piper inficiens
- Piper inhorrescens
- Piper injucundum
- Piper inopinum
- Piper insectifugum
- Piper insigne
- Piper insignilaminum
- Piper insolens
- Piper instabilipes
- Piper interitum
- Piper internibaccum
- Piper interruptum
- Piper intonsum
- Piper inurbanum
- Piper iquitosense
- Piper irazuanum
- Piper irrasum
- Piper itacoluminnum
- Piper itatiaianum
- Piper itayanum
- Piper ivonensis
- Piper ixocubvainense
- Piper jaboncillanum
- Piper jacquemontianum
- Piper jaliscanum
- Piper janeiroense
- Piper japurense
- Piper jauaense
- Piper javariense
- Piper javitense
- Piper jericoense
- Piper josephii
- Piper jubatinervosum
- Piper jubatum
- Piper jubimarginatum
- Piper juianum
- Piper juliflorum
- Piper jumayense
- Piper kadsura
- Piper kanehiranum
- Piper kappleri
- Piper karwinskianum
- Piper kawakamii
- Piper kegelianum
- Piper kegelii
- Piper kerberi
- Piper keyanum
- Piper khasianum
- Piper killipii
- Piper kimpitirikianum
- Piper kleinii
- Piper klotzschianum
- Piper klugianum
- Piper klugii
- Piper kreangense
- Piper krukoffii
- Piper kuhlmannii
- Piper kunthii
- Piper kurzii
- Piper kwangtungense
- Piper kwashoense
- Piper la-pazense
- Piper labillardieri
- Piper lacunosum
- Piper ladoradense
- Piper laetispicum
- Piper laetum
- Piper laevicarpum
- Piper laevifolium
- Piper laevigatum
- Piper lagenaebaccum
- Piper lagoaense
- Piper lagoense
- Piper laguna-cochanum
- Piper lagunaense
- Piper lamasense
- Piper lanatibracteum
- Piper lancaefolium
- Piper lanceaefolium
- Piper lanceifolium
- Piper lanceolatum
- Piper lanciferum
- Piper lancilimbum
- Piper langlassei
- Piper langsdorfii
- Piper lanosibracteum
- Piper lanosicaule
- Piper lanosicuale
- Piper laosanum
- Piper lapathifolium
- Piper lateoblongum
- Piper lateovatum
- Piper latibracteum
- Piper laurifolium
- Piper laurinum
- Piper lawrancei
- Piper lechlerianum
- Piper lectum
- Piper ledebourii
- Piper lehmannianum
- Piper lemaense
- Piper lenticellosum
- Piper leptocladum
- Piper leptoneuron
- Piper leptostachyum
- Piper lepturum
- Piper lessertianum
- Piper leticianum
- Piper leucanthum
- Piper leuconeurum
- Piper leucophaeocaule
- Piper leucophaeum
- Piper leucophlebium
- Piper leucophyllum
- Piper leucostachyum
- Piper lhotskyanum
- Piper lhotzkyanum
- Piper licentiosum
- Piper liebmannii
- Piper liesneri
- Piper limai
- Piper limosum
- Piper lindbergii
- Piper lindenianum
- Piper lindenii
- Piper linearifolium
- Piper lineatipilosum
- Piper lineativillosum
- Piper lineatum
- Piper lineolatifolium
- Piper littlei
- Piper littorale
- Piper llatanum
- Piper loefgrenii
- Piper lonchites
- Piper longeacuminatum
- Piper longepilosum
- Piper longestamineum
- Piper longestylosum
- Piper longiappendiculatum
- Piper longiauriculatum
- Piper longibracteum
- Piper longicaudatum
- Piper longicaule
- Piper longifilamentum
- Piper longifolium
- Piper longimucronatum
- Piper longiovarium
- Piper longipedicellatum
- Piper longipedunculatum
- Piper longipes
- Piper longispicum
- Piper longistigmum
- Piper longistylum
- Piper longivaginans
- Piper longstamineum
- Piper longum
- Piper lorae
- Piper loretoanum
- Piper losoense
- Piper lowong
- Piper lucifruitum
- Piper lucigaudens
- Piper lundii
- Piper lunulibracteatum
- Piper luridispicum
- Piper luteynii
- Piper luxii
- Piper macapaense
- Piper macbrideanum
- Piper macedoi
- Piper macerispicum
- Piper machupicchuense
- Piper macropiper
- Piper macropodum
- Piper macrorhynchon
- Piper macrostachyum
- Piper macrotrichum
- Piper maculatum
- Piper madagascariense
- Piper madeiranum
- Piper magnantherum
- Piper magnibaccum
- Piper magnifolium
- Piper magnilimbum
- Piper majusculum
- Piper malaccense
- Piper malacophyllum
- Piper malamiri
- Piper malanganum
- Piper malifolium
- Piper malpasoensis
- Piper mamorense
- Piper manabinum
- Piper mananthum
- Piper manausense
- Piper manillanum
- Piper mansericheanum
- Piper mapirense
- Piper maranyonense
- Piper marequitense
- Piper margaritatum
- Piper marginatum
- Piper marsupiiferum
- Piper martensianum
- Piper martianum
- Piper martinense
- Piper marturetense
- Piper mastersianum
- Piper maxonii
- Piper mazamariense
- Piper mazananum
- Piper mcvaughii
- Piper medinaense
- Piper medinillifolium
- Piper mediocre
- Piper medium
- Piper melanocaulon
- Piper melanocladum
- Piper melanopremnum
- Piper melanostictum
- Piper melastomoides
- Piper mellibracteum
- Piper mendenzense
- Piper mercedense
- Piper mercens
- Piper merrillii
- Piper mestonii
- Piper metae
- Piper metanum
- Piper mexiae
- Piper mexicanum
- Piper michelianum
- Piper microstachyon
- Piper microstigma
- Piper microtrichum
- Piper miersianum
- Piper miersinum
- Piper miguelconejoanum
- Piper mikaniaefolium
- Piper mikanianum
- Piper milciadesii
- Piper millegranum
- Piper millepunctulatum
- Piper minarum
- Piper miniatum
- Piper minutescabiosum
- Piper minutipetiolatum
- Piper miquelianum
- Piper misantlense
- Piper mishuyacuense
- Piper mite
- Piper mitifolium
- Piper mituense
- Piper mocco-mocco
- Piper mocoanum
- Piper modestum
- Piper moense
- Piper mohomoho
- Piper mollicomum
- Piper mollipilosum
- Piper mollissimum
- Piper molliusculum
- Piper mollugo
- Piper monagasense
- Piper monostigmum
- Piper montanum
- Piper montealegreanum
- Piper monteverdeanum
- Piper montium
- Piper montivagum
- Piper monzonense
- Piper morelianum
- Piper morianum
- Piper mornicola
- Piper moscopanense
- Piper mosenii
- Piper mosqueiroense
- Piper mourai
- Piper mucronulatum
- Piper muelleri
- Piper mullesua
- Piper multiforme
- Piper multimammosum
- Piper multinodum
- Piper multiocellatum
- Piper multiplinervium
- Piper multistigmum
- Piper multitudinis
- Piper munchanum
- Piper mundum
- Piper munyanum
- Piper muricatum
- Piper murrayanum
- Piper musteum
- Piper mutabile
- Piper myrmecophilum
- Piper nanayanum
- Piper napo-pastazanum
- Piper narinoense
- Piper naris-fractae
- Piper nasutum
- Piper neblinanum
- Piper nebuligaudens
- Piper neesianum
- Piper neglectum
- Piper negritosense
- Piper negroense
- Piper nematanthera
- Piper nemorense
- Piper nervosum
- Piper nervulosum
- Piper neurostachyum
- Piper nicoyanum
- Piper nigrantherum
- Piper nigrescens
- Piper nigribaccum
- Piper nigricans
- Piper nigriconnectivum
- Piper nigrispecum
- Piper nigrispicum
- Piper nigropunctatum
- Piper nigrovirens
- Piper nigrum
- Piper niteroiense
- Piper nitidulilaminum
- Piper nobile
- Piper nodosum
- Piper novae-hispanium
- Piper noveninervium
- Piper novogalicianum
- Piper nubigenum
- Piper nudifolium
- Piper nudilimbum
- Piper nudirameum
- Piper nudum
- Piper oaxacanum
- Piper obesispicum
- Piper obitersericeum
- Piper oblanceolatum
- Piper oblancifolium
- Piper obliquum
- Piper oblongatifolium
- Piper oblongatilimbum
- Piper oblongatum
- Piper oblongibracteum
- Piper oblongifolium
- Piper oblongum
- Piper obloniaefolium
- Piper obovatifolium
- Piper obrutum
- Piper obtestans
- Piper obtusilimbum
- Piper obtusum
- Piper obumbratifolium
- Piper oculatispicum
- Piper offensum
- Piper olarianum
- Piper ollantaitambanum
- Piper omega
- Piper onus
- Piper opacibracteum
- Piper operosum
- Piper opizianum
- Piper opodum
- Piper oradendron
- Piper ornatum
- Piper ornithorhynchum
- Piper oroense
- Piper orosianum
- Piper orthostachyum
- Piper ospinense
- Piper ostii
- Piper otophorum
- Piper otto-huberi
- Piper ottoniaefolium
- Piper ottoniifolium
- Piper ottonoides
- Piper ovantherum
- Piper ovatibaccum
- Piper ovatilimbum
- Piper ovatum
- Piper oviedoi
- Piper oxyphyllum
- Piper oxystachyum
- Piper pachoanum
- Piper pachyarthrum
- Piper pachyphloem
- Piper pachyphloium
- Piper pachyphyllum
- Piper padangense
- Piper padifolium
- Piper paganicum
- Piper paitense
- Piper palestinanum
- Piper pallididorsum
- Piper pallidifolium
- Piper palmanum
- Piper palmasanum
- Piper palmeri
- Piper paludicola
- Piper paludosum
- Piper pampa-hermosanum
- Piper pamploanum
- Piper pandoense
- Piper papillicarpum
- Piper papillicaule
- Piper papulatum
- Piper paraense
- Piper paraguassuanum
- Piper paraisense
- Piper paralaevigatum
- Piper paramaribense
- Piper parananum
- Piper parapeltobryon
- Piper parcipilosum
- Piper parcirameum
- Piper parcum
- Piper parianum
- Piper parimaum
- Piper parmatum
- Piper parong
- Piper parvantherum
- Piper parvicordulatum
- Piper parvipedunculum
- Piper parvipetiolum
- Piper pastasanum
- Piper patens
- Piper patzulinum
- Piper paucartamboanum
- Piper paucipilosum
- Piper pauciramosum
- Piper paucistigmum
- Piper paulianifolium
- Piper paulianum
- Piper pausatum
- Piper pavasense
- Piper pavonii
- Piper payanum
- Piper pebasense
- Piper peculiare
- Piper pedicellatum
- Piper pedicellosum
- Piper pedunculare
- Piper pedunculatum
- Piper peepuloides
- Piper pellitum
- Piper peltatum
- Piper peltilimbum
- Piper penangense
- Piper pendens
- Piper pendentispicium
- Piper pendentispicum
- Piper pendulirameum
- Piper pendulispicum
- Piper pendulum
- Piper pentagonum
- Piper penyasense
- Piper peracuminatum
- Piper perareolatum
- Piper peraromaticum
- Piper perbrevicaule
- Piper perbrevispicum
- Piper perciliantum
- Piper perciliatum
- Piper percostatum
- Piper perenense
- Piper pergamentifolium
- Piper pergeniculatum
- Piper perhispidum
- Piper perhispium
- Piper perlasense
- Piper perlongipedunculum
- Piper permolle
- Piper permucronatum
- Piper perpallidum
- Piper perpurgatum
- Piper perpusillum
- Piper perscabrifolium
- Piper perstipulare
- Piper perstrigosum
- Piper persubulatum
- Piper pertinax
- Piper pertomentellum
- Piper pertractatum
- Piper peruvianum
- Piper pervelutinum
- Piper pervenosum
- Piper perverrucosum
- Piper pervulgatum
- Piper pervulsum
- Piper petaresanum
- Piper petiolare
- Piper petiolatum
- Piper pexum
- Piper phanerolepidum
- Piper philippinum
- Piper philodendroides
- Piper philodendrum
- Piper phyllostictum
- Piper phytolaccifolium
- Piper picardae
- Piper picobonitoense
- Piper piedecueatanum
- Piper piedecuestanum
- Piper pileatum
- Piper pilgeri
- Piper pilibracteum
- Piper piliovarium
- Piper pilirameum
- Piper pilosissimum
- Piper pilovarium
- Piper piluliferifolium
- Piper piluliferum
- Piper pinaresanum
- Piper pinoganense
- Piper pinuna-negroense
- Piper piojoanum
- Piper piresii
- Piper piritubanum
- Piper piscatorum
- Piper pitalitoense
- Piper pittieri
- Piper plagiophyllum
- Piper planadosense
- Piper planipes
- Piper planitiei
- Piper playablancanum
- Piper plukenetianum
- Piper plurinervosum
- Piper poasanum
- Piper poeppigii
- Piper poeppiguum
- Piper pogonioneuron
- Piper pohlianum
- Piper politaeneum
- Piper politaereum
- Piper politifolium
- Piper politii
- Piper politum
- Piper polopoloi
- Piper polycarpum
- Piper polysyphonum
- Piper polytrichum
- Piper ponapense
- Piper ponganum
- Piper pontis
- Piper popayaense
- Piper popayanense
- Piper popayenense
- Piper poporense
- Piper populifolium
- Piper porphyrophyllum
- Piper portachuelense
- Piper portobellense
- Piper porveniricola
- Piper poscitum
- Piper positum
- Piper posusanum
- Piper potamophilum
- Piper pothiforme
- Piper pothomorphe
- Piper pothophyllum
- Piper praeacutilimbum
- Piper praesagium
- Piper presliiaingii
- Piper prianamense
- Piper prietoi
- Piper pringlei
- Piper prismaticum
- Piper procerum
- Piper prodiger
- Piper protracticuspidatum
- Piper provulgatum
- Piper prunifolium
- Piper pseudamboinense
- Piper pseudo-obliquum
- Piper pseudoaduncum
- Piper pseudoalbuginiferum
- Piper pseudoamalago
- Piper pseudoarboreum
- Piper pseudoasperifolium
- Piper pseudobarbatum
- Piper pseudobredemeyeri
- Piper pseudobumbratum
- Piper pseudocallosum
- Piper pseudocativalense
- Piper pseudochavica
- Piper pseudodilatatum
- Piper pseudoeucalyptifolium
- Piper pseudofimbriulatum
- Piper pseudofuligineum
- Piper pseudogaragaranum
- Piper pseudoglabrescens
- Piper pseudoglabrifolium
- Piper pseudogrande
- Piper pseudohastularum
- Piper pseudolanceaefolium
- Piper pseudolanceifolium
- Piper pseudolindenii
- Piper pseudomatico
- Piper pseudomollicomum
- Piper pseudoperuvianum
- Piper pseudopopayanense
- Piper pseudopothifolium
- Piper pseudovariabile
- Piper psilophyllum
- Piper psilorhachis
- Piper psilostachyum
- Piper pterocladum
- Piper pubens
- Piper puberulescens
- Piper puberulibaccum
- Piper puberuliciliatum
- Piper puberulidrupum
- Piper puberulilimbum
- Piper puberulinerva
- Piper puberulinerve
- Piper puberulispicum
- Piper puberulum
- Piper pubibaccum
- Piper pubinerve
- Piper pubinervulum
- Piper pubiovarium
- Piper pubipedunculum
- Piper pubirulibracteum
- Piper pubistipulum
- Piper pubisubmarginalum
- Piper pulchrum
- Piper pulleanum
- Piper pullibaccum
- Piper pullibracteatum
- Piper pumayacuense
- Piper punctiunculatum
- Piper punctulantherum
- Piper punctulatum
- Piper puniceum
- Piper puraceanum
- Piper purpusianum
- Piper purulentum
- Piper purusanum
- Piper pusticaule
- Piper pustulatum
- Piper pustulicaule
- Piper putumayoense
- Piper puyoense
- Piper pygmaeum
- Piper quadratiovarium
- Piper quadratum
- Piper quillabambanum
- Piper quillandanum
- Piper quimirianum
- Piper quinqueangulatum
- Piper quitense
- Piper rafflesii
- Piper raizudoanum
- Piper ramipilum
- Piper ramosense
- Piper ramosii
- Piper rasile
- Piper recensitum
- Piper recessum
- Piper recreoense
- Piper rectamentum
- Piper rectinergulum
- Piper recuperatum
- Piper recurvum
- Piper reductipes
- Piper regale
- Piper regnellii
- Piper reinwardtianum
- Piper reitzii
- Piper relaxatum
- Piper remotinervium
- Piper renitens
- Piper repentense
- Piper reptabundum
- Piper resalutatum
- Piper restio
- Piper restrictum
- Piper retalhuleuense
- Piper retemense
- Piper reticulatum
- Piper retrofractum
- Piper retropilosum
- Piper reventazonis
- Piper rhinostachyum
- Piper rhyncholepsis
- Piper rhytidocarpum
- Piper ribesioides
- Piper richardiifolium
- Piper richordianum
- Piper ridleyi
- Piper riedelii
- Piper riitosense
- Piper rindjanense
- Piper rio-doceanum
- Piper riocajambrense
- Piper riocauchosanum
- Piper riochiadoense
- Piper rioense
- Piper riojanum
- Piper riomarguanum
- Piper rionechianum
- Piper ripagaudens
- Piper riparense
- Piper ripicola
- Piper rivinioides
- Piper rivinoides
- Piper rivulare
- Piper roblalense
- Piper robleanum
- Piper robustipedunculum
- Piper rogaguanum
- Piper rohrii
- Piper ronaldii
- Piper roqueanum
- Piper roseanum
- Piper rosei
- Piper rotundibaccum
- Piper rovirosae
- Piper rubiginosum
- Piper rubribaccum
- Piper rubripes
- Piper rubrospadix
- Piper rude
- Piper rudgeanum
- Piper rufibrachium
- Piper rufibracteum
- Piper rufipilum
- Piper rugosibaccum
- Piper rugosifolium
- Piper rugosilimbum
- Piper rugosum
- Piper rumicifolium
- Piper rumphii
- Piper rupunumianum
- Piper rupununianum
- Piper rusbyi
- Piper rusticum
- Piper sabaletasanum
- Piper sabanaense
- Piper sacchamatesense
- Piper sagittifer
- Piper sagittifolium
- Piper saldanhai
- Piper salentoi
- Piper salgaranum
- Piper salicariaefolium
- Piper salicifolium
- Piper saloyanum
- Piper salticola
- Piper samanense
- Piper sambuanum
- Piper sampaioi
- Piper san-andresense
- Piper san-blasense
- Piper sancti-felicis
- Piper sanctum
- Piper sandianum
- Piper sangabrielanum
- Piper sanjuananum
- Piper sanjuanum
- Piper sanmarcosanum
- Piper sanmartinense
- Piper sannicolasense
- Piper sanramonense
- Piper sanroqueanum
- Piper santaeclarae
- Piper santaremense
- Piper sanvicentense
- Piper sapitense
- Piper sapotoanum
- Piper sapotoyacuense
- Piper saraense
- Piper sararense
- Piper sarmentosum
- Piper satisfactum
- Piper savanense
- Piper scabiosifolium
- Piper scabridulicaule
- Piper scabridulilimbum
- Piper scabrifolium
- Piper scabritibium
- Piper scalariforme
- Piper scalarispicum
- Piper scalpens
- Piper scansum
- Piper schachii
- Piper schenckii
- Piper schiedeanum
- Piper schippianum
- Piper schlechtendahlianum
- Piper schlechtendalii
- Piper schlimii
- Piper schmidtii
- Piper schottii
- Piper schunkeanum
- Piper schuppii
- Piper schwackei
- Piper sciaphilum
- Piper scintillans
- Piper sclerophloeum
- Piper scobinifolium
- Piper scutifolium
- Piper scutilimbum
- Piper scutispicum
- Piper sebastianopolitense
- Piper sebastianum
- Piper secundum
- Piper seducentifolium
- Piper sellertianum
- Piper selloi
- Piper semangkoanum
- Piper semicordulatum
- Piper semicrudum
- Piper semiimmersum
- Piper semimetrale
- Piper seminitidulum
- Piper semiplenum
- Piper semitarium
- Piper semivolubile
- Piper semperflorens
- Piper seperatum
- Piper septentrionalis
- Piper septuplinervium
- Piper sericeonervosum
- Piper serotinum
- Piper serpavillanum
- Piper serrulatum
- Piper sesquimetrale
- Piper setigerum
- Piper setosum
- Piper setulosum
- Piper sibulanum
- Piper sibunense
- Piper sierra-aroense
- Piper signatum
- Piper siguatepequense
- Piper silencioi
- Piper silvaense
- Piper silvanorum
- Piper silvarum
- Piper silvigaudens
- Piper silvimontanum
- Piper silvivagum
- Piper simulans
- Piper sinuatifolium
- Piper sinuatispicum
- Piper sinuclausum
- Piper sinugaudens
- Piper sirium
- Piper sivarajanii
- Piper skutchii
- Piper sneidernii
- Piper snethlagei
- Piper sociorum
- Piper sodiroi
- Piper soledadense
- Piper solmsianum
- Piper solutidrupum
- Piper somniculosum
- Piper soporatum
- Piper sorcicaudatum
- Piper sorsogonum
- Piper sotai
- Piper sperdinum
- Piper sphaerocarpum
- Piper sphaeroides
- Piper spicilongum
- Piper sprengelianum
- Piper spruceanum
- Piper squamulosum
- Piper staminodiferum
- Piper standleyi
- Piper statarium
- Piper stellipilum
- Piper stenocarpum
- Piper stenophyllum
- Piper stenopodum
- Piper stenostachys
- Piper sternii
- Piper stevensonii
- Piper steyermarkii
- Piper stileferum
- Piper stiliferum
- Piper stipulaceum
- Piper stipulare
- Piper stomachicum
- Piper storkii
- Piper striaticaule
- Piper striatifolium
- Piper striatipetiolum
- Piper strictifolium
- Piper strictinervosum
- Piper strigillosicaule
- Piper strigillosum
- Piper strigosum
- Piper stupposum
- Piper subaduncum
- Piper subaerophilum
- Piper subalpinum
- Piper subandinum
- Piper subasperatum
- Piper subasperifolium
- Piper subbullatum
- Piper subcaniramum
- Piper subcaudatum
- Piper subciliatum
- Piper subcinereum
- Piper subcinerosum
- Piper subconcinnum
- Piper subcordatum
- Piper subcordulatum
- Piper subcrenulatum
- Piper subdivaricatum
- Piper subduidaense
- Piper subeburneum
- Piper subfalcatum
- Piper subflavispicum
- Piper subflavum
- Piper subfrutescens
- Piper subfuscum
- Piper subglabribracteatum
- Piper subglabrifolium
- Piper subglabrum
- Piper subglaucum
- Piper subhirsutum
- Piper subinense
- Piper subjapurense
- Piper sublignosum
- Piper sublineatum
- Piper submarginense
- Piper submolle
- Piper submultinerve
- Piper subnitidifolium
- Piper subnitidum
- Piper subnudispicum
- Piper subpatens
- Piper subpedale
- Piper subprostratum
- Piper subquadratum
- Piper subquinquenerve
- Piper subrepens
- Piper subrubrispicum
- Piper subrugosum
- Piper subscabridum
- Piper subscutatum
- Piper subseptemnervium
- Piper subsericeum
- Piper subsessilifolium
- Piper subsilvestre
- Piper subsilvulanum
- Piper substilosum
- Piper subtomentosum
- Piper subulatum
- Piper subundilimbum
- Piper subvariabile
- Piper subzhorquinense
- Piper sucreense
- Piper suffruticosum
- Piper suipigua
- Piper sulcatum
- Piper sulcinervosum
- Piper sumatranum
- Piper sumpi
- Piper sundaicum
- Piper supernum
- Piper suratanum
- Piper surubresanum
- Piper swartzianum
- Piper sylvaticum
- Piper sylvestre
- Piper tabanicidum
- Piper tachiranum
- Piper tacticanum
- Piper tamatamum
- Piper tamayoanum
- Piper tandapianum
- Piper tapantiense
- Piper taperanum
- Piper taperinhanum
- Piper tapianum
- Piper tarrazuense
- Piper taumanum
- Piper teapense
- Piper tectoniaefolium
- Piper tectoniifolium
- Piper tecumense
- Piper tecutlanum
- Piper temiscoense
- Piper tenebricosum
- Piper tentatum
- Piper tenue
- Piper tenuiflorum
- Piper tenuilimbum
- Piper tenuimucronatum
- Piper tenuipes
- Piper tenuispicum
- Piper tequendanense
- Piper terrabanum
- Piper terryae
- Piper tessmannii
- Piper teysmanii
- Piper thermale
- Piper thomsonii
- Piper tilaranum
- Piper tiliifolium
- Piper timbiquinum
- Piper timbuchianum
- Piper tinctum
- Piper tjambai
- Piper tocacheanum
- Piper tomas-albertoi
- Piper tonduzii
- Piper toppingii
- Piper toronotepuiense
- Piper torresanum
- Piper torribiense
- Piper tortivenulosum
- Piper tortuosipilum
- Piper tortuosivenosum
- Piper townsendii
- Piper trachyphyllum
- Piper translucens
- Piper transpontinum
- Piper trianae
- Piper triangulare
- Piper tricharhachis
- Piper trichocarpon
- Piper trichocladum
- Piper trichogymum
- Piper trichogynum
- Piper trichoneuron
- Piper trichorhachis
- Piper trichostachyon
- Piper trichostylopse
- Piper trichostylum
- Piper tricopus
- Piper tricuspe
- Piper tridentipilum
- Piper trigoniastrifolium
- Piper trigonocarpum
- Piper trigonodrupum
- Piper trigonum
- Piper trimetrale
- Piper trineuron
- Piper tristemon
- Piper tristigmum
- Piper truman-yunckeri
- Piper truncatibaccum
- Piper truncatum
- Piper tsakianum
- Piper tsuritkubense
- Piper tuberculatum
- Piper tucumanum
- Piper tuerckheimii
- Piper tuisanum
- Piper tumidinodum
- Piper tumidum
- Piper tumupasense
- Piper turbator
- Piper turbense
- Piper turrialvanum
- Piper tutuilae
- Piper tuxpenyanum
- Piper ubatubensis
- Piper ubiguescabridum
- Piper ubiqueasperum
- Piper ucayalianum
- Piper udicola
- Piper udisilvestre
- Piper uhdei
- Piper ulceratum
- Piper uleanum
- Piper ulei
- Piper ulmifolium
- Piper umbellatum
- Piper umbrachlum
- Piper umbricola
- Piper umbriense
- Piper umbrosum
- Piper uncinulatum
- Piper ungaramense
- Piper unguiculatum
- Piper unguiculiferum
- Piper unillanum
- Piper urdanetanum
- Piper urdanetum
- Piper urophyllum
- Piper urostachyum
- Piper urubambanum
- Piper uspantanense
- Piper utinganum
- Piper uvitanum
- Piper vaccinium
- Piper vaginans
- Piper valdivianum
- Piper valetudinarii
- Piper valladolidense
- Piper vanderveldeanum
- Piper varablancanum
- Piper varibracteum
- Piper variegatum
- Piper variifolium
- Piper vellosoi
- Piper velutibracteum
- Piper velutinibaccum
- Piper velutininervosum
- Piper velutinum
- Piper veneralense
- Piper venosum
- Piper ventoleranum
- Piper venulosissimum
- Piper veraguense
- Piper verbascifolium
- Piper verbenaceum
- Piper veredianum
- Piper vergelense
- Piper verguense
- Piper vermiculatum
- Piper verruculaecaule
- Piper verruculaefolium
- Piper verruculaepetiolum
- Piper verruculigerum
- Piper verruculosum
- Piper versteegii
- Piper vestitum
- Piper viachicoense
- Piper vicinum
- Piper vicosanum
- Piper villalobosense
- Piper villarrealii
- Piper villipedunculum
- Piper villiramulum
- Piper villistipulum
- Piper villosispicum
- Piper villosissimum
- Piper villosulum
- Piper viminifolium
- Piper virgatum
- Piper virgenense
- Piper virginis
- Piper virgultorum
- Piper viridicaule
- Piper viridifolium
- Piper viridilimbum
- Piper viridistachyum
- Piper virillanum
- Piper viscaianum
- Piper vitaceum
- Piper viticaule
- Piper volubile
- Piper wabagense
- Piper wachenheimii
- Piper wagneri
- Piper walkeri
- Piper wallichii
- Piper weddellii
- Piper wedelii
- Piper wibomii
- Piper wilhelmense
- Piper wingfieldii
- Piper winkleri
- Piper woytkowskii
- Piper wrightii
- Piper wydlerianum
- Piper xalapense
- Piper xanthoneurum
- Piper xanthostachyum
- Piper xiroresanum
- Piper xylosteoides
- Piper yanaconasense
- Piper yananoanum
- Piper yaracuyense
- Piper yessupianum
- Piper ynesae
- Piper yucatanense
- Piper yunckeri
- Piper yungasanum
- Piper yzabalanum
- Piper zacapanum
- Piper zacatense
- Piper zarceroense
- Piper zarumanum
- Piper zenkeri
- Piper zepelacioi
- Piper zeylanicum
- Piper zhorquinense
- Piper zollingeri
- Piper zonulatispicum
- Piper zubinetanum