This list includes all eucalypt names, those taxa accepted in EUCLID and previously published names.

Eucalyptus pachycalyx Maiden & Blakely subsp. pachycalyx
Eucalyptus pachycalyx subsp. banyabba K.D.Hill = E. pachycalyx subsp. waajensis
Eucalyptus pachycalyx subsp. waajensis L.A.S.Johnson & K.D.Hill
Eucalyptus pachycarpa (K.D.Hill & L.A.S.Johnson) Brooker = Corymbia pachycarpa
Eucalyptus pachyloma Benth.
Eucalyptus pachyphylla F.Muell.
Eucalyptus pachyphylla var. sessilis Maiden = E. sessilis
Eucalyptus pachypoda F.Muell. ex Benth. = identity uncertain
Eucalyptus paedoglauca L.A.S.Johnson & Blaxell
Eucalyptus paliformis L.A.S.Johnson & Blaxell
Eucalyptus pallens DC. = E. obliqua
Eucalyptus pallida L.A.S.Johnson & K.D.Hill = E. eudesmioides subsp. pallida
Eucalyptus pallidifolia F.Muell. = E. brevifolia
Eucalyptus paludicola D.Nicolle
Eucalyptus paludosa R.T.Baker = E. ovata var. ovata
Eucalyptus palustris Brooker = Angophora bakeri subsp. bakeri
Eucalyptus panda S.T.Blake
Eucalyptus panda subsp. illaquens L.A.S.Johnson = E. beyeri
Eucalyptus paniculata Sm.
Eucalyptus paniculata subsp. matutina L.A.S.Johnson & K.D.Hill = E. paniculata
Eucalyptus paniculata var. angustifolia Benth. = E. beyeri
Eucalyptus paniculata var. conferta Benth. = identity uncertain
Eucalyptus paniculata var. fasciculosa (F.Muell.) Benth. = Eucalyptus fasciculosa
Eucalyptus pantoleuca L.A.S. Johnson & K.D. Hill
Eucalyptus papillosa (K.D.Hill & L.A.S.Johnson) Brooker = Corymbia papillosa
Eucalyptus papuana F.Muell. = Corymbia papuana
Eucalyptus papuana var. aparrerinja Blakely = Corymbia aparrerinja
Eucalyptus paradoxa Maiden & Blakely = reputed hybrid E. globulus subsp. pseudoglobulus × E. tereticornis subsp. tereticornis
Eucalyptus paralimnetica L.A.S.Johnson & K.D.Hill = E. spreta
Eucalyptus parramattensis E.C.Hall subsp. parramattensis
Eucalyptus parramattensis subsp. decadens L.A.S.Johnson & Blaxell
Eucalyptus parramattensis var. sphaerocalyx Blakely
Eucalyptus parviflora F.Muell. [nom. illeg.]
Eucalyptus parvifolia Cambage = E. parvula
Eucalyptus parvula L.A.S.Johnson & K.D.Hill
Eucalyptus pastoralis S.Moore = E. bigalerita
Eucalyptus patellaris F.Muell.
Eucalyptus patens Benth.
Eucalyptus patentiflora Miq. = E. melliodora
Eucalyptus patentinervis R.T.Baker = reputed hybrid E. robusta × E. tereticornis
Eucalyptus pauciflora Sieber ex Spreng. subsp. pauciflora
Eucalyptus pauciflora subsp. acerina Rule
Eucalyptus pauciflora subsp. debeuzevillei (Maiden) L.A.S.Johnson & Blaxell
Eucalyptus pauciflora subsp. hedraia Rule
Eucalyptus pauciflora subsp. niphophila (Maiden & Blakely) L.A.S.Johnson & Blaxell
Eucalyptus pauciflora subsp. parvifructa Rule = E. pauciflora subsp. pauciflora
Eucalyptus pauciflora var. alpina Ewart = E. pauciflora subsp. niphophila
Eucalyptus pauciflora var. cylindrocarpa Blakely = presumed hybrid
Eucalyptus pauciflora var. densiflora Blakely & McKie = presumed hybrid
Eucalyptus pauciflora var. nana Blakely = E. gregsoniana
Eucalyptus pauciflora var. rusticata Blakely = presumed hybrid
Eucalyptus peacockeana Maiden = reputed hybrid E. crebra × E. melliodora
Eucalyptus peeneri (Blakely) L.D.Pryor & L.A.S.Johnson ex Boomsma = E. eremicola subsp. peeneri
Eucalyptus pellita F.Muell.
Eucalyptus peltata Benth. subsp. peltata = Corymbia peltata
Eucalyptus peltata subsp. dimorpha Brooker & A.R.Bean. See note under Corymbia peltata
Eucalyptus peltata subsp. leichhardtii (F.M.Bailey) L.A.S.Johnson & Blaxell = Corymbia leichhardtii
Eucalyptus pendens Brooker
Eucalyptus pendula Steud. nom. nud. [nom. illeg.]
Eucalyptus penicillata   pro. syn. [nom. illeg.]
Eucalyptus peninsularis D.Nicolle
Eucalyptus penrithensis Maiden = E. eugenioides × E. racemosa
Eucalyptus perangusta Brooker
Eucalyptus percostata Brooker & P.J.Lang
Eucalyptus perfoliata Desf. = ? E. globulus
Eucalyptus perfoliata R.Br. ex Benth. = Corymbia cadophora subsp. cadophora
Eucalyptus perfoliata Sweet  nom. nud. [nom. illeg.]
Eucalyptus perplexa Maiden & Blakely = E. jensenii
Eucalyptus perriniana F.Muell. ex Rodway
Eucalyptus perriniana incorrect [nom. illeg.]
Eucalyptus perriniana R.T.Baker & H.G.Sm. incorrect [nom. illeg.]
Eucalyptus persicifolia Lodd. = E. pilularis
Eucalyptus persistens L.A.S.Johnson & K.D.Hill subsp. persistens
Eucalyptus persistens subsp. tardecidens L.A.S.Johnson & K.D.Hill
Eucalyptus petalophylla Brooker & A.R.Bean = Corymbia petalophylla
Eucalyptus petiolaris (Boland) Rule
Eucalyptus petraea D.J.Carr & S.G.M.Carr
Eucalyptus petrensis Brooker & Hopper
Eucalyptus petrophila Blakely = reputed hybrid E. blaxlandii × E. racemosa
Eucalyptus phaenophylla Brooker & Hopper subsp. phaenophylla
Eucalyptus phaenophylla subsp. interjacens Brooker & Hopper
Eucalyptus phaeotricha Blakely & McKie = E. tindaliae
Eucalyptus phellandra R.T.Baker & H.G.Sm. = E. radiata subsp. radiata
Eucalyptus phenax Brooker & Slee subsp. phenax
Eucalyptus phenax subsp. compressa D.Nicolle
Eucalyptus phlebophylla Miq. = E. pauciflora subsp. pauciflora
Eucalyptus phoenicea F.Muell.
Eucalyptus phylacis L.A.S.Johnson & K.D.Hill
Eucalyptus pilbarensis Brooker & Edgecombe
Eucalyptus pileata Blakely
Eucalyptus pilligaensis Maiden
Eucalyptus pilularis Sm.
Eucalyptus pilularis var. acmenoides (Schauer) Benth. = E. acmenoides
Eucalyptus pilularis var. muelleriana Maiden = identity uncertain
Eucalyptus pilularis var. pyriformis Maiden = E. pyrocarpa
Eucalyptus pilularis var. typica Domin [nom. illeg.]
Eucalyptus pimpiniana Maiden
Eucalyptus piperita Sm. subsp. piperita
Eucalyptus piperita subsp. urceolaris (Maiden & Blakely) L.A.S.Johnson & Blaxell
Eucalyptus piperita var. brachycorys Benth. = identity uncertain
Eucalyptus piperita var. eugenioides Benth. = identity uncertain
Eucalyptus piperita var. laxiflora Benth. = E. piperita subsp. piperita
Eucalyptus piperita var. orophila Blakely = reputed hybrid E. oreades × E. piperita
Eucalyptus piperita var. pauciflora DC. = ? E. obtusiflora
Eucalyptus placita L.A.S.Johnson & K.D.Hill
Eucalyptus planchoniana F.Muell.
Eucalyptus planipes L.A.S.Johnson & K.D.Hill = ? E. griffithsii
Eucalyptus platycorys Maiden & Blakely
Eucalyptus platydisca
Eucalyptus platyphylla F.Muell.
Eucalyptus platyphylla var. tintinnans Blakely & Jacobs = E. tintinnans
Eucalyptus platypodos Cav. = E. botryoides
Eucalyptus platypus Hook. subsp. platypus
Eucalyptus platypus subsp. congregata Brooker & Hopper
Eucalyptus platypus var. heterophylla Blakely = E. utilis
Eucalyptus platypus var. nutans (F.Muell.) Benth. = E. nutans
Eucalyptus plena (K.D.Hill & L.A.S.Johnson) Brooker = Corymbia plena
Eucalyptus plenissima (C.A.Gardner) Brooker = E. kochii subsp. plenissima
Eucalyptus pleurocarpa Schauer
Eucalyptus pleurocorys L.A.S.Johnson & K.D.Hill = E. brachycalyx
Eucalyptus pluricaulis Brooker & Hopper subsp. pluricaulis
Eucalyptus pluricaulis subsp. porphyrea Brooker & Hopper
Eucalyptus plurilocularis F.Muell. = uncertain presumed hybrid
Eucalyptus pocillum D.J.Carr & S.G.M.Carr = Corymbia pocillum
Eucalyptus polita Brooker & Hopper
Eucalyptus polyanthemos Schauer subsp. polyanthemos
Eucalyptus polyanthemos subsp. longior Brooker & Slee
Eucalyptus polyanthemos subsp. marginalis Rule = E. polyanthemos subsp. polyanthemos
Eucalyptus polyanthemos subsp. vestita L.A.S.Johnson & K.D.Hill
Eucalyptus polybractea R.T.Baker
Eucalyptus polycarpa F.Muell. = Corymbia polycarpa
Eucalyptus polycarpa var. oligocarpa Blakely & Jacobs = Corymbia eremaea
Eucalyptus polysciada F.Muell. = Corymbia polysciada
Eucalyptus pontis D.J.Carr & S.G.M.Carr = Corymbia cliftoniana
Eucalyptus populifolia Desf. = E. tereticornis subsp. tereticornis
Eucalyptus populifolia Hook. = E. populnea
Eucalyptus populifolia var. obconica Blakely = reputed hybrid E. populnea × ?
Eucalyptus populnea F.Muell.
Eucalyptus populnea subsp. bimbil L.A.S.Johnson & K.D.Hill = E. populnea
Eucalyptus populnea var. obconica (Blakely) Cameron = E. populnea × ?
Eucalyptus porosa Miq.
Eucalyptus porrecta S.T.Blake = Corymbia porrecta
Eucalyptus portuensis K.D.Hill = E. acmenoides
Eucalyptus praecox Maiden = E. mannifera subsp. praecox
Eucalyptus praetermissa Brooker & Hopper
Eucalyptus prava L.A.S.Johnson & K.D.Hill
Eucalyptus preissiana Schauer subsp. preissiana
Eucalyptus preissiana subsp. lobata Brooker & Slee
Eucalyptus preissiana var. glauca Regel = uncertain identity
Eucalyptus procera Dehnh. = E. obliqua
Eucalyptus prolixa D.Nicolle
Eucalyptus prominens Brooker
Eucalyptus prominula L.A.S.Johnson & K.D.Hill = E. youmanii
Eucalyptus propinqua H.Deane & Maiden
Eucalyptus propinqua var. major Maiden = E. major
Eucalyptus protensa L.A.S.Johnson & K.D.Hill
Eucalyptus provecta A.R.Bean
Eucalyptus proxima Nicolle & Brooker see note under E. cernua
Eucalyptus pruiniramis L.A.S.Johnson & K.D.Hill
Eucalyptus pruinosa Schauer subsp. pruinosa
Eucalyptus pruinosa subsp. tenuata L.A.S.Johnson & K.D.Hill
Eucalyptus pruinosa Turcz. = E. pyriformis
Eucalyptus pryoriana L.A.S.Johnson = E. viminalis subsp. pryoriana
Eucalyptus psammitica L.A.S.Johnson & K.D.Hill
Eucalyptus pseudo-piperita Maiden & Blakely = reputed hybrid E. capitellata × E. piperita
Eucalyptus pseudoglobulus Naudin ex Maiden = E. globulus subsp. pseudoglobulus
Eucalyptus pterocarpa C.A.Gardner ex P.J.Lang
Eucalyptus ptychocarpa F.Muell. subsp. ptychocarpa = Corymbia ptychocarpa subsp. ptychocarpa
Eucalyptus pulchella Desf.
Eucalyptus pulverulenta Link nom. dub. [nom. illeg.]
Eucalyptus pulverulenta Sims
Eucalyptus pulverulenta var. lanceolata A.W.Howitt = E. cinerea subsp. cinerea
Eucalyptus pulverulenta var. ovatifolia Dehnh. = identity uncertain
Eucalyptus pulvigera A.Cunn. = E. pulverulenta
Eucalyptus pumila Cambage
Eucalyptus punctata DC.
Eucalyptus punctata var. didyma R.T.Baker & H.G.Sm. = E. punctata
Eucalyptus punctata var. grandiflora H.Deane & Maiden = E. canaliculata
Eucalyptus punctata var. longirostrata Blakely = E. longirostrata
Eucalyptus punctata var. major R.T.Baker & H.G.Sm. = E. canaliculata
Eucalyptus puncticulata (Benth.) Blakely = E. uncinata
Eucalyptus purpurascens Link = presumed hybrid
Eucalyptus purpurascens var. petiolaris DC. = Corymbia gummifera
Eucalyptus purpurascens var. petiolulata DC. nom. dub.
Eucalyptus purpurata D.Nicolle
Eucalyptus pygmaea Blakely = reputed hybrid E. camfieldii × E. haemastoma
Eucalyptus pyrenea Rule = E. cypellocarpa
Eucalyptus pyriformis Turcz.
Eucalyptus pyriformis subsp. youngiana (F.Muell.) Boomsma = E. youngiana
Eucalyptus pyriformis var. elongata Maiden = E. pyriformis
Eucalyptus pyriformis var. kingsmillii Maiden = E. kingsmillii subsp. kingsmillii
Eucalyptus pyriformis var. minor Maiden = identity uncertain
Eucalyptus pyriformis var. rameliana (F.Muell.) Maiden = E. rameliana
Eucalyptus pyrocarpa L.A.S.Johnson & Blaxell
Eucalyptus pyrophora Benth. = Corymbia terminalis
Eucalyptus pyrophora f. compacta Domin = identity uncertain
Eucalyptus pyrophora var. compacta Domin = identity uncertain
Eucalyptus pyrophora var. polycarpa (F.Muell.) Maiden incorrect [nom. illeg.]