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ABBREVIATIONS
cv. – is short for cultivar
f. – is short for forma
prev. – is short for previous
sp. – is short for species
spp. – is short for many species of the one genera
ssp. – is short for subspecies
subsp. – is short for subspecies
syn. – is short for synonum
var. – is short for variety

Pabstia – 4(44)
Pacaya Palm – see Chamaedorea tepejilote
Pachira aquatica – 11(83)
Pachira insignis – 11(83)
Pachycaul– 2(13)
Pachypodium – 8(18)
Pachypodium geayi – 2(13); 17(34)
Pachypodium lamerei - 2(13); 8(63); 18(36)
Pachyrhizus erosus (jicama) – 9(79); 16(69); 17(67); 18(66); 19(66); 20(66)
Pachystachys – 4(91)
Pachystachys coccinea – 18(32)
Pachystachys lutea – 3(16); 10(48, 53); 11(29); 14(12, 73); 15(73); 16(72); 17(72); 20(37)
Pacific Blue Eyes – see Pseudomugil signifer
Painter’s Palette – see Anthurium x cultorum; Anthurium andraeanum
Pak Choi – see Brassica rapa subsp. chinensis
Pakalana – see Magnolia x alba
Paklan – see Magnolia x alba
Palm Lily - see Cordyline
Palm-leaved Tacca – see Tacca palmata
Palms - see Aiphanes; Archontophoenix; Areca; Arenga; Bismarckia; Caryota; Chamaedorea; Dictyosperma; Dypsis; Howea; Hyophorbe; Licuala; Linospadix; Lytocaryum; Normanbya; Phoenix; Pinanga; Rhapis; Rhopalostylis; Roystonea; Wodyetia
Panama Berry – see Muntingia calabura
Panama Flame Tree – see Brownea macrophylla
Panda Bamboo – see Pogonatherum paniceum
Panda Plant – see Kalanchoe tomentosa
Pandan, Climbing – see Freycinetia marginata
Pandan, Flowering – see Freycinetia scandens
Pandan, Scented – see Pandanus amaryllifolius
Pandan, Thai – see Pandanus amaryllifolius
Pandanus amaryllifolius – 14(38, 42)
Pandanus baptistii ‘Variegata’ – 6(13)
Pandanus pedunculatus – see Pandanus tectorius
Pandanus pygmaeus – 10(48-49); 18(31)
Pandanus solms-laubachii – 17(13)
Pandanus spiralis – 6(14)
Pandanus tectorius - 1(74); 6(14, 17); 6(31); 9(29); 11(54, 59)
Pandanus tectorius ‘Baptistii’ – 6(17)
Pandanus textorious ‘Red Edge’ – 14(22)
Pandanus utilis – 6(55)
Pandorea jasminoides – 4(74); 11(78); 16(25, 73); 17(19, 21, 73)
Pandorea pandorana – 6(61); 11(78); 12(76); 17(76); 18(89)
Panic Grass, Cotton – see Digitaria brownii
Panic, Slender – see Paspalidium criniforme
Panicum laxum – 7(82)
Pansy – 3(91); see Viola tricolor
Papalo – see Porophyllum ruderale
Papaver nudicaule – 15(70); 18(68); 19(70)
Papaver orientale – 18(68); 19(71)
Papaver rhoeas – 15(70); 18(68); 19(70)
Paper Daisy - see Xerochrysum bracteatum, Helipterum roseum; Rhodanthe chlorocephala
Paperbark trees - see Melaleuca
Paphiopedilum – 10(40); 19(33)
Paphiopedilum Saint Swithin – 19(35)
Papyrus Grass – see Cyperus papyrus
Para Cress – see Spilanthes acmella; Blainvillea acmella
Paradise fish – see Macropodus opercularis
Paradise Flower – see Solanum wendlandii
Pararistochlia praevenosa - 4(74)
Paris Daisy – see Euryops chrysanthemoides; Euryops pectinatus
Parlour Palm - see Chamaedorea elegans
Parodia – 8(18)
Parrot Beak Impatiens – see Impatiens niamniamensis
Parrot Heliconia – see Heliconia psittacorum
Parrot Tree – see Schotia brachypetala
Parrots Beak – see Heliconia rostrata
Parsley – 4(10); 7(73); 10(87); also see Petroselinum crispum
Parsnip (vegetable) – 14(71); 15(69); also see Pastinaca sativa
Parsnip, Peruvian – see Arracacia xanthorrhiza
Parthenocissus quinquefolia – 16(18)
Paspalidium criniforme – 17(45)
Paspalum notatum – 7(82)
Paspalum vaginatum - 1(88); 3(82); 10(89)
Passiflora – 5(81)
Passiflora ‘Nellie Kelly’ – 5(81)
Passiflora ‘Panama Gold’ – 5(81)
Passiflora ‘Panama Red’ – 5(81)
Passiflora coccinea – 14(76)
Passiflora fulgens – see Passiflora coccinea
Passiflora phoenicea - 14(95)
Passiflora quadrangularis – 12(64)
Passiflora vitifolia – 14(73)
Passion Flower – see Passiflora
Passionfruit – see Passiflora
Passionfruit Herb – see Tagetes lemmonii
Pastinaca sativa (parship)– 18(67); 19(67); 20(67)
Patersonia sericea – 6(77); 13(30, 60); 19(12)
Pathways – 9(16-19); 13(16)
Paulownia tomentosa – 12(14)
Pavetta – see Pavetta australiensis
Pavetta australiensis – 5(51); 8(58); 11(78)
Pavetta natalensis – 14(26); 19(42)
Pavonia x gledhillii – 12(65)
Paw paw – see Carica papaya
Pea flowers – 8(32)
Pea, Pigeon – see Cajanus cajan
Pea, Sweet – see Lathyrus odoratus
Peace Lily - see Spathiphyllum
Peacock Flower – see Caesalpinia pulcherrima
Peacock Ginger – see Cornudaempheria aurantiflora
Peacock Plant – see Calathea makoyana
Pean – see Poor Man’s Bean, Lablab Bean
Peanut Butter Plant – see Bunchosia argenta
Peanut Tree, Native – see Sterculia quadrifida
Pear, Manchurian – see Pyrus ussuriensis
Peas – 10(87); 15(69); see Pisum sativum
Pedilanthus tithymaloides – see Euphorbia tithymaloides
Peepal – see Ficus religiosa
Peepthong – see Radermachera ignea
Pelargonium – 2(13); 6(57); 10(68); 11(82); 12(9) 20(22-27)
Pelargonium ‘Cornford’s Sunray’ – 20(25)
Pelargonium ‘Dragonfly’ – 20(23)
Pelargonium ‘Frank Hedley’ – 20(26)
Pelargonium ‘Golden Butterfly’ – 20(24)
Pelargonium ‘Happy Thoughts’ – 20(25)
Pelargonium ‘Henri Cox’ – 20(26)
Pelargonium ‘Mabel Grey’– 20(26)
Pelargonium ‘Orange Ice’ – 20(26)
Pelargonium ‘Rouletta’ – 20(24)
Pelargonium ‘Vancouver Centennial’ – 20(26)
Pelargonium aridicula – 20(27)
Pelargonium capitatum – 20(26)
Pelargonium caroli-henrici – 20(27)
Pelargonium citronellum – 20(26)
Pelargonium citrosen – 10(55)
Pelargonium crispum – 20(26)
Pelargonium denticulatum – 20(26)
Pelargonium graveolens – 20(26)
Pelargonium grossularioides – 20(26)
Pelargonium hybridum – 6(57)
Pelargonium oblongatum – 20(27)
Pelargonium odoratissimum – 20(23, 26)
Pelargonium peltatum – 15(34, 73); 17(21)
Pelargonium peltatum – 20(25)
Pelargonium radicatum – 20(27)
Pelargonium tomentosum – 12(14); 14(38): 20(26)
Pelargonium x domesticum – 20(25)
Pelargonium x fragans – 20(26)
Pelargonium x hortorum – 20(25)
Pelargonium x nervosum – 20(26)
Pelargonium, Ivy-Leaved – see Pelargonium peltatum
Pelargonium, Regal – see Pelargonium x domesticum
Pelargonium, Zonal – see Pelargonium x hortorum
Pellionia davaueana – 9(35)
Peltophorum pterocarpum – 4(68); 6(31); 8(53); 11(54); 20(72)
Pennisetum – 6(24)
Pennisetum clandestinum – 7(82); 10(89); 20(63)
Pennisetum macrostachys – 4(11)
Penstemon – see Penstemon fruticosus
Penstemon fruiticosus – 18(68); 19(71); 20(69)
Pentas bussei – 19(40)
Pentas coccinea ‘Alba’ – 14(26)
Pentas cultivars – 14(73); 15(73)
Pentas lanceolata – 17(72); 19(13, 40)
Pentas lanceolata ‘Pink’ – 10(69)
Peperomia – 16(41, 70); 17(69)
Peperomia caperata – 3(53)
Peperomia magnolifolia– 2(14)
Peperomia obtusifolia ‘Variegata’ – 15(34, 38)
Peperomia sandersii – 9(34, 36)
Pepper Vine – see Piper sp.
Pepper, Native – see Tasmannia insipida
Pepperberry – see Cryptocarya obovata
Peppermint Geranium – see Pelargonium tomentosum
Perennial Ryegrass – see Lolium perenne
Pereskia aculeata – 8(44)
Pereskia aculeata ‘Godseffiana’ – 8(44); 10(6)
Pereskia bleo – 8(44)
Pereskia grandifolia – 8(44)
Pergolas – 10(9-11)
Peristrophe angustifolia - 2(18-19)
Periwinkle, European – see Vinca
Periwinkle, Madagascan – see Catharanthus
Periwinkle, Pink Tree – see Kopsia fruticosa
Permaculture – 15(50-51); 16(54)
Persea americana - 1(84); 4(81); 5(68)
Persian Shield – see Strobilanthes gossypina, Strobilanthes dyeriana
Persian Violet – see Exacum affine
Persicaria odorata – 14(55); also see Polygonum odoratum
Persoonia virgata – 17(36); 20(42, 45)
Pertusadina eurhyncha – 15(78)
Peruvian Carrot – see Arracacia xanthorrhiza
Peruvian Daffodil – see Ismene narcissiflora
Peruvian Lily – see Alstroemeria psittacina
Peruvian Parsnip – see Arracacia xanthorrhiza
Pest control – 16(48-51); 18(84)
Petalostigma triloculare – 16(42); 17(36, 39)
Petraeovitex wolfei – 10(11); 11(29)
Petrea kohautiana – 20(10)
Petrea volubilis - 2(41); 13(12, 13, 16, 18, 31, 40); 15(11); 16(12, 13, 72, 73); 17(21); 20(12)
Petroselinum crispum (parsley) – 13(80); 14(55); 18(67); 19(67)
Petunia – 5(91); 15(70); 16(67, 70); 17(68); 18(69); 19(71); 20(21, 69)
Petunia Bush - see Ipomoea carnea
Petunia, Perennial – see Calibrachoa
pH – 15(48)
Phaius – 4(46)
Phaius australis – 13(45)
Phaius bernaysii – 13(45)
Phaius pictus – 13(45)
Phaius tankervilleae – 13(45)
Phaius wallichii – 13(45)
Phalaenopsis - 1(16); 6(44); 19(33)
Phalaenopsis Crystal Tough ‘Warrigal’ – 19(33)
Phalaenopsis Dendi Meh-Teh ‘GiGi’ – 19(33)
Phalaenopsis Tying Shin Miracle ‘GiGi’ – 19(33)
Phaleria chermsideana – 6(61)
Phaleria clerodendron – 12(65); 16(83)
Phallus rubicundus – 15(9)
Phaseolus caracalla - see Vigna caracalla
Phaseolus coccineus – 10(77)
Phaseolus lunatus (lima bean) - 2(68); 7(75); 8(29); 14(55); 16(69); 17(67); 18(67); 19(66); 20(66)
Phaseolus vulgaris (French bean/green bean) – 10(77); 11(81-82); 14(55); 17(67); 18(66); 19(66); 20(66)
Phebalium woombye – 6(77)
Philadelphus coronaries – 20(11)
Philippine Mussaenda – see Mussaenda
Philippine Violet – see Barleria cristata
Philodendron - 1(11); 3(16); 5(16); 7(23)
Philodendron ‘Alumina’ – 9(36)
Philodendron ‘Rojo Congo’ – 13(27)
Philodendron ‘Xanadu’ – 14(13)
Philodendron bipinnatifum – 10(45)
Philodendron cannifolium – 7(27); 14(22)
Philodendron elegans – 5(15)
Philodendron gloriosum – 10(48-49); 18(76)
Philodendron imbe variagata – 5(15)
Philodendron mamei – 9(34, 36)
Philotheca myoporoides – 13(11)
Phlox drummondii – 15(70); 18(69); 19(71)
Phoenicophorium – 5(50)
Phoenix roebelinii - 1(74); 2(18); 17(34)
Phoenix sylvestris – 8(68)
Phormium ‘Pink Ribbon’ – 12(9)
Phormium cultivars – 14(69)
Phosphate, rock – 15(49)
Phosphorus – 15(49); 20(53)
Phragmites – 17(46)
Phyllanthus cuscutiflorus – 17(cover, 3, 13, 79)
Phyllanthus lamprophyllus – 20(42, 44)
Phyllanthus minutiflorus – 13(54)
Phyllanthus minutifolia – 12(68); should be Phyllanthus minutiflorus
Phyllanthus sp. ‘Pascoe River’ – see Phyllanthus lamprophyllus
Phylloglossum – 10(38)
Physalis edulis – see Physalis peruviana
Physalis ixocarpa – see Physalis philadephica
Physalis peruviana – 13(87); 14(55, 57); 19(58)
Physalis philadephica (tomatillo) – 20(67)
Physalis pruinosa – 13(87); 14(58)
Physallis peruviana – should be Physalis peruviana
Physarum cinereum (mould) – 15(64)
Physic Nut – see Jatropha multifida
Phytophthera – 12(28)
Phytoselius persimilis [mite] – 14(49)
Pia – see Tacca leontopetaloides
Piccabeen Palm – see Archontophoenix cunninghamiana
Pickeral Weed – see Pontederia cordata
Pie Melon - see Cucurbita ficifolia
Pigeon Pea – 14(71); 15(69); 16(69); also see Cajanus cajan
Pigface - see Carpobrotus
Pilea – 16(70); 17(69)
Pilea cadieri – 9(36)
Pilidiostigma glabrum – 19(45)
Pilidiostigma rhytispermum – 19(42, 45)
Pill Flower– see Ozothamnus diosmifolius
Pimenta dioica – 14(38)
Pimenta officinalis – see Pimenta dioica
Pimpinella - see Sechium edule
Pinanga kuhlii – 12(54, 55)
Pineapple - see Ananas comosus
Pineapple Lily - see Billbergia pyramidalis, Eucomis comosa
Pineapple Sage – see Salvia elegans; Salvia rutilans
Pineapple, Cossack – see Physalis pruinosa
Pineapple, Variegated – see Ananas bracteatus ‘Striatus’
Pink Agapanthus – see Tulbaghia simmleri
Pink Alpinia – see Alpinia purpurata ‘Jungle Queen’
Pink Ball Dombeya – see Dombeya wallichii
Pink Euodia – see Melicope elleryana
Pink Evening Primose – see Oenothera rosea, Oenothera speciosa
Pink Foam-bark – see Jagera pseudorhus
Pink Hibiscus – see Hibiscus splendens
Pink Jacobinia – see Justicia carnea
Pink Knodding Orchid – see Geodorum densiflorum
Pink Paddle – see Tillandsia cyanea ‘Paradise’
Pink Periwinkle Tree – see Kopsia fruticosa
Pink Phyllanthus - see Phyllanthus cuscutiflorus
Pink Satinash – see Syzygium malaccense
Pink Trumpet Tree – see Tabebuia palmeri, Tabebuia rosea
Pink Trumpet Vine – see Podranea ricasoliana
Pink Watsonia – see Watsonia borbonica
Pink, China – see Dianthus chinensis
Pinto Peanut – see Arachis pintoi
Pinus elliotii - 2(13)
Pipal – see Ficus religiosa
Piper sp. – 17(13)
Pisonia grandis ‘Alba’ – 18(30)
Pisonia grandis var. alba – 12(30); 13(17); also see Pisonia grandis ‘Alba’
Pisum sativum (peas)– 14(55); 18(67); 19(67); 20(67)
Pitanga – see Eugenia uniflora
Pitcairnia congon – 3(25)
Pitcairnia feliciana - 8(24)
Pitcairnia smithiorum – 4(34); 20(42)
Pitcher Plants – see Nepenthes
Pitomba – see Eugenia luschnathiana
Pitpit – see Setaria palmifolia
Pittosporum angustifolium – 11(78)
Pittosporum lancifolium – 17(47)
Pittosporum moluccanum – 9(57)
Pittosporum rhombifolium – see Auranticarpa rhombifolia
Pittosporum spinescens – 17(47)
Pittosporum undulatum - 2(17); 19(42, 45); 20(88)
Pittosporum viscidum – 11(78); 17(35, 47)
Places to be –

• Adungadoo Pathway, Roma – 16(88)
• Alice Springs Desert Park – 7(47)
• Barker Creek Circuit, Bunya Mountains – 18(89)
• Burleigh Heads National Parks – 15(88)
• Carnarvon Gorge National Park – 16(89)
• Cherry Plain-Burton’s Well Track, Bunya Mtns – 20(88)
• Eungella National Park – 17(88)
• Ewan Maddock Dam – 17(89)
• Flecker Botanic Gardens - 3(46)
• Flinders Goolman Estate – 13(51)
• Forestglen Park, Browns Plains – 10(44)
• Fort Canning Park, Singapore – 8(53)
• George Brown Darwin Botanic Gardens - 2(51)
• Gold Coast Regional Botanic Gardens - 1(51)
• Gosford/Edogawa Commemorative Garden – 5(49)
• Haig Street Quarry Bushland Reserve, Ipswich – 9(50)
• Howard Springs Nature Park – 9(51)
• Iguacu Falls, Argentina/Brazil – 10(45)
• Kholo Botanic Gardens, Ipswich – 4(49)
• Kings Park Botanic Gardens, Perth – 12(51)
• Lamington National Park, Binna Burra – 8(51)
• Laurel Bank Park, Toowoomba – 4(48)
• Lotusland, USA – 8(52)
• Mackay Regional Botanic Gardens - 1(49)
• Maroochy Bushland Botanic Gardens -  4(46)
• Maryborough Portside – 4(47)
• Mossman Gorge, Daintree National Park – 18(88)
• Mount Kaputar National Park, Northern NSW – 11(51)
• Mt Whitfield Conservation Park, Cairns – 14(88)
• Nerima Gardens, Ipswich 2(52)
• New Farm Park, Brisbane – 7(44)
• North Coast Regional Botanic Gardens 1(48)
• Peace Park, Rosewood Scrub Arboretum – 5(50)
• Purlingbook Falls, Gold Coast – 12(50)
• Queens Gardens, Townsville – 5(49)
• Queens Park Botanic Gardens, Toowoomba – 15(89)
• Queens Park, Mackay – 7(45)
• Redcliffe Botanic Gardens – 7(46)
• Redlands Indigiscapes Centre - 3(47)
• Rockhampton Botanic Gardens - 2(50)
• Roma Street Parkland - 1(50)
• Singapore Botanic Gardens - 3(48,49)
• Spring Bluff, Toowoomba – 20(89)
• Sydney Tropical Centre - 2(53)
• Tjibaou Cultural Centre, New Caledonia – 13(50)
• Toohey Forest, Nathan – 5(48)
• Tropical Display Dome, Mt Coot-tha Botanic Gardens, Brisbane – 11(50)
• Vanuatu – 14(89)

Planchonia careya - 2(73)
Plantago coronopus (minutina) – 20(67)
Plantain Lily – see Hosta
Platies (fish) – see Xiphophorus maculatus
Platycerium bifurcatum – 5(15); 7(67); 8(35); 9(69); 11(73); 18(24)
Platycerium superbum – 5(15); 7(51); 8(35-36); 9(69); 11(73)
Platysace – 6(60)
Plectranthus – 16(70); 17(69)
Plectranthus ‘Mona Lavender’ – 16(11)
Plectranthus amboinicus – 9(73); 14(53)
Plectranthus argentatus – 4(43)
Plectranthus caninus – see Plectranthus neochilus
Plectranthus graveolens – 13(54); 15(34, 37)
Plectranthus neochilus – 13(41); 16(73)
Plectranthus sp. - 14(38)
Pleomele reflexa – see Dracaena reflexa
Plum, Natal – see Carissa grandiflora; Carissa macrocarpa
Plumbago – 4(91)
Plumbago auriculata - 1(74); 12(71); 13(31); 14(73); 17(72)
Plumbago auriculata ‘Royal Cape’ – 8(40); 11(36)
Plumbago, False – see Ceratostigma willmottianum
Plumeria – 4(62-65); 5(7, 27-31, 61); 6(31); 7(7, 23, 24, 44); 8(10, 13); 9(43); 10(26); 12(61); 16(41)
Plumeria ‘Bali Palace’ – 5(28)
Plumeria ‘Bali Whirl’ – 5(28)
Plumeria ‘Bowen Yellow’ – 17(73)
Plumeria ‘Firedancer’ – 4(62); 5(28)
Plumeria ‘Golden Star’ – 5(28)
Plumeria ‘Jack’s Purple’ – 5(28)
Plumeria ‘Lanna’ – 5(28)
Plumeria ‘Leela’ – 5(28)
Plumeria ‘Madame Rainbow’ – 5(28)
Plumeria ‘Moonlight Pink’ – 4(62); 5(28)
Plumeria ‘Orange Bouquet’ – 5(28)
Plumeria ‘Salmon Pink’ – 5(28)
Plumeria ‘Tornado’ – 5(28)
Plumeria ‘Unconditional Love’ – 5(28)
Plumeria ‘Vishnu Gold’ – 5(28)
Plumeria ‘Weipa Sunset’ – 4(62)
Plumeria ‘Whirlpool’ – 5(28)
Plumeria acutifolia - 1(10)
Plumeria alba – 5(30); 14(94)
Plumeria bahamiensis – 5(30)
Plumeria caracasana – 5(30)
Plumeria cubensis – 14(94)
Plumeria filifolia – see Plumeria stenophylla
Plumeria montanum – 5(31)
Plumeria obtusa – 3(16); 4(63); 5(30); 6(16, 17); 8(9, 13); 12(33); 13(18); 14(12, 13, 73, 94); 18(33)
Plumeria obtusa ‘Petite Pink’– 15(16, 17)
Plumeria obtusa ‘Singapore’ – 15(17); 16(40)
Plumeria obtuse – should be Plumeria obtusa
Plumeria pudica – 5(30, 31); 12(33); 14(3)
Plumeria rubra - 1(11); 2(57); 3(61); 4(62); 5(30); 8(9); 10(26, 69); 11(29, 83); 14(12, 13, 94); 16(40); 17(72); 19(40); 20(72, 73, 85)
Plumeria rubra forma acutifolia – 5(30)
Plumeria stenopetala – 4(62); 5(31)
Plumeria stenophylla – 5(29, 31); 14(27, 94)
Plumhead (bird) – see Neochmia modesta
Plum-headed Finch (bird) – see Neochmia modesta
Plunkett Mallee – see Eucalyptus curtisii
Poa labillardieri – 13(54, 56)
Poa pratensis – 7(83)
Poa trivialis – 7(83)
Podocarpus - 2(17)
Podocarpus elatus – 9(62-63); 11(78); 18(18)
Podranea brycei – 16(76); 17(20, 21)
Podranea ricasoliana – 16(12, 18, 76)
Poecilia reticulata – 11(63)
Poephila bichenovii – see Taeniopygia bichenovii
Poephila guttata – see Taeniopygia guttata
Pogonatherum crinitum – 13(55)
Pogonatherum paniceum – 13(54, 55)
Pogonatherum paniceum ’Monica’ – 13(55)
Poinciana - see Delonix regia
Poinciana Bush – see Caesalpinia pulcherrima
Poinciana, Shrub – see Caesalpinia pulcherrima
Poinsettia - see Euphorbia pulcherrima
Poinsettia, Jungle – see Warszewiczia coccinea
Pointed-leaved Hovea – see Hovea acutifolia
Poisoning, trees – 9(90)
Pokosola – see Ochrosia elliptica
Poland’s Bottlebrush – see Callistemon polandii; Melaleuca polandii
Polianthes tuberosa – 6(37); 11(83); 19(24)
Polyalthia longifolia ‘Pendula’ - 1(55); 4(11); 19(42)
Polygonum odoratum – 14(55)
Polymnia sonchifolia – 8(81); see Smallanthus sonchifolius
Polynesia Arrowroot – see Tacca leontopetaloides
Polyscias – 12(67)
Polyscias cumingiana ‘Aurea’ – 18(79); 19(42)
Polyscias filicifolia ‘Aurea’ – see Polyscias cumingiana ‘Aurea’
Polyscias fruticosa – 18(30)
Polyscias guilfoylei - 1(10); 2(14); 13(17)
Polyspora axillaris – 20(46)
Pomegranate – see Punica granatum
Ponds - 2(36); 9(26); 14(72); 15(68); 16(72); 17(70); 18(73); 19(72); 20(69)
Pong Pong Tree – see Cerbera odollam
Pongamia pinnata – 6(17); 18(8); refer to Millettia pinnata
Pontederia cordata – 14(73)
Pony Tail Plant – see Beaucarnea
Ponytail Palm – see Beaucarnea
Pools – 7(23-25)
Poor Man’s Bean – see Lablab purpureus
Poppies – 3(90)
Poppy – see Papaver
Poppy, California – see Eschscholzia californica
Poppy, Corn – see Papaver rhoeas
Poppy, Flanders – 12(12)
Poppy, Iceland – see Papaver nudicaule
Poppy, Oriental – see see Papaver orientale
Poppy, Shirley– se Papaver rhoeas
Pork Fat Tree – see Clusia rosea
Porophyllum ruderale – 14(55)
Porphyrocoma – 8(6)
Porphyrocoma lanceolata – see Porphyrocoma pohliana
Porphyrocoma pohliana – 20(76)
Port ST. Johns Creeper – see Podranea ricasoliana
Port Wine Magnolia – see Michelia figo; Magnolia figo
Portea alatisepala - 1(26)
Portea petropolitana var. extensa - 1(26); 11(38)
Portulaca - 1(73); 16(70); 17(69)
Portulaca grandiflora – 15(70); 16(70); 17(68); 18(69); 19(71); 20(69)
Portulaca oleracea – 14(73)
Portulaca oleracea var. sativa (purslane) – 17(67); 18(67); 19(67); 20(67)
Pot Marigold – see Calendula officinalis
Potassium – 3(89); 13(26); 15(49); 20(53)
Potassium permanganate – 16(49)
Potato – see Solanum tuberosum
Potato Bush, Blue – see Lycianthes rantonnetii; Solanum rantonnetii
Potato Creeper – see Solanum jasminoides
Potato Creeper, Giant – see Solanum wendlandii
Potato Vine – see Solanum wendlandii
Potato, Sweet – see Ipomoea batatas
Pothos - see Epipremnum aureum
Potinara – 14(30)
Pots – 10(82-83)
Potted plants – 6(84-85)
Potting mix – 5(84-85)
Pouteria – 9(80)
Pouteria caimito – 6(80-81)
Powder Puff - see Calliandra
Powder Puff Lily – see Scadoxus multiflorus subsp. katherinae
Powderpuff Lillypilly – see Syzygium wilsonii
Powdery mildew – 4(64)
Poysean - see Euphorbia milii
Praecitrullus fistulosus (Indian gourd)– 17(67); also seeCitrullus marmelon var. fastulosum
Prayer Plant - see Calathea; Ctenanthe; Maranta; Stromanthe
Predatory mites – 7(73); 14(49)
Pregnant Onion Plant – see Ornithogalum longebracteatum
Pretty in Pink – see Justicia candicans
Prickly Paperbark – see Melaleuca styphelioides
Prickly Pine – see Bursaria incana
Prickly Rasp Fern – see Doodia aspera
Pride of Barbados – see Caesalpinia pulcherrima
Pride of Burma - see Amherstia nobilis
Pride of India – see Lagerstroemia speciosa
Primose, Pink Evening – see Oenothera rosea, Oenothera speciosa
Primula – 3(91); also see Primula malacoides; Primula obconica
Primula malacoides – 3(91); 15(70); 18(67); 19(71)
Primula obconica – 3(91)
Prince of Wales Feather – see Celosia argentea var. plumosa
Princess Flower – see Tibouchina urvilleana
Princess Flower, Silver-leafed – see Tibouchina heteromalla
Princess Palm – see Dictyosperma album
Princess Tree – see Paulownia tomentosa 
Princess, Purple – see Cyathula prostrata
Pritchardia hillebrandii - 7(25); 12(46); 14(20)
Pritchardia hilledbrandii – should be Pritchardia hillebrandii
Pritchardia pacifica – 6(31); 7(25)
Proiphys - 1(12)
Proiphys alba – 6(19)
Proiphys amboinensis – 6(19); 14(27); 17(12, 75); 19(25)
Proiphys cunninghamii – 6(18-19); 17(36, 75); 19(25)
Proiphys infundibularis – 6(19)
Propagation

• Begonia – 15(25)
• Clivia – 12(29)
• Cordylines – 17(26)
• Fleshy fruits - 3(84 -87)
• Hard coats – 8(86-88)
• Hardwood stem cuttings – 4(86-88)
• Leaf wedge – 15(25)
• Lotus - 2(30)
• Plumeria – 4(63)
• Rhizome – 5(86-89)
• Seed storers – 8(86-88)
• Smoke lovers – 8(86-88)

Prostanthera – 5(69)
Prostanthera incise – 3(67)
Prostanthera ovalifolia – 14(38)
Proteas – 8(88)
Protoasparagus aethiopicus – 14(63)
Protoasparagus plumosus – 14(63)
Pruinose scarab [insect] – see Sericesthis geminata
Pruning

• Hedge – 9(91)
• Tipping – 8(91)
• Trees - 2(64)

Prunus – 6(51); 12(14); 13(34); 15(12)
Prunus salicifolia – 13(87); see Prunus serotina subsp. capuli
Prunus serotina subsp. capuli – 14(57)
Pseuderanthemum atropurpureum – 10(69); see Pseuderanthemum carruthersii
Pseuderanthemum carruthersii – 9(36); 12(67); 14(73, 89)
Pseuderanthemum carruthersii ‘Reticulatum’ – 18(30)
Pseuderanthemum laxiflorum cultivar – 6(42)
Pseuderantheum – should bePseuderanthemum
Pseudobombax ellipticum - 1(54); 20(72)
Pseudocalymma alliaceum – see Mansoa alliacea
Pseudodracontium lucourii – 3(25)
Pseudogynoxis chenopodioides – 16(42)
Pseudomugil siginfer – 7(69); 11(65)
Pseudophoenix sargentii – 6(17)
Pseudoranthemum – should be Pseuderanthemum
Psidium – 13(87)
Psidium cattleianum var. cattleianum – 14(56, 57); 19(58)
Psidium cattleianum var. cattleianum f. lucidum - 14(56-57)
Psidium guajava – 16(60-61)
Psidium guajava ‘Giant Thai White’ – 16(61)
Psidium guajava ‘Glom Sali’ – 16(61)
Psidium guajava ‘Hawaiian Pink Supreme’ – 16(61)
Psidium guajava ‘Mexican Cream’ – 16(61)
Psidium guajava ‘Northern Gold’ – 16(61)
Psidium guajava ‘Pear’ – 16(61)
Psidium guajava ‘Sweet White Indonesian’ – 16(61)
Psidium littorale var. littorale – 11(29); see also Psidium cattleianum var. cattleianum f. lucidum
Psophocarpus tetragonolobus (winged bean) - 10(75); 11(81); 16(69); 17(67); 18(67); 19(67); 20(67)
Psychotria daphnoides – 15(47); 19(12)
Psychotria loniceroides – 15(47); 19(11)
Psydrax odorata – 11(78)
Pteris argyrea – 9(36)
Pteris cretica albo-lineata – 9(34, 36)
Pteris ensiformis ‘Evergemiensis’ – 9(34, 36)
Pteris ensiformis ‘Victoriae’ – 9(36)
Pterocarpus indicus – 6(28); 11(83)
Pterocarpus indicus ‘Pendula’ – 16(7)
Pterospermum acerfolium – 8(29)
Pterospermum acerifolium – 17(78)
Ptilotus – 15(70); 16(70); 17(68); 18(69); 19(71); 20(69)
Ptilotus nobilis – 9(21); 12(75)
Ptilotus nobilus – should be Ptilotus nobilis
Ptychosperma elegans – 7(25); 14(12, 13); 18(82)
Ptychosperma lineare – 19(42)
Ptychosperma macarthurii - 4(10); 7(25); 12(35)
Puccinia zoysiae – 3(12); 8(85)
Pudding Pipe Tree – see Cassia fistula
Pultenaea – 5(69)
Pultenaea villosa – 5(69); 10(48); 17(36)
Pumpkins – 10(87); 14(71); 15(69); 16(56-57, 69)
Pumpkins – also see Cucurbita maxima; Cucurbita argyrosperma subsp. argyrosperma; Cucurbita moschata
Punica granatum - 4(89); 9(23); 11(84); 16(42)
Punica granatum ‘Nana’ – 4(66); 16(13)
Punica pranatum – should be Punica granatum
Purple Allamanda – see Allamanda blanchetii
Purple Dazzler, Variegated – see Pseuderanthemum laxiflorum cultivar
Purple Heart – see Tradescantia pallida ‘Purpurea’
Purple Passion – see Petrea kohautiana
Purple Pea – see Hovea
Purple Podded Bean – 10(77); 12(85)
Purple Princess – see Cyathula prostrata
Purple Wings – see Dalechampia aristolochiifolia
Purple Wire Grass – see Aristida ramosa
Purple Wreath Vine - see Petrea volubilis
Purslane (vegetable) – 14(71); 15(69); 16(68, 69); also see Portulaca oleracea var. sativa
Purslane, Surinam – see Talinum triangulare
Puya mirablis – 12(38)
Pygmy Agave – see Agave pygmae
Pygmy Pineapple – see Ananas comosus var. ananassoides
Pyrethrum - see Tanacetum
Pyrostegia venusta - 1(74); 15(73); 19(13)
Pyrus ussuriensis – 16(18)
Python Tree – see Austromyrtus bidwillii