Scientific names: P
- Pachycereus pringlei
- Pachyphragma macrophylla
- Pachypodium lamerei var. lamerei
- Pachypodium saundersii
- Pachysandra terminalis
- Pachystachys lutea
- Packera multilobata
- Paeonia Auguste Dessert
- Paeonia Coral Charm
- Paeonia First Arrival
- Paeonia Garden Treasure
- Paeonia King of England
- Paeonia Rubinschale
- Paeonia Starlight
- Paeonia anomala
- Paeonia cambessedesii
- Paeonia caucasica
- Paeonia delavayi
- Paeonia emodi
- Paeonia lactiflora
- Paeonia lactiflora 'Alstead'
- Paeonia lactiflora 'Bowl of Beauty'
- Paeonia lactiflora 'Felix Crousse'
- Paeonia lactiflora 'Flame'
- Paeonia lactiflora 'Glorie de Ch. Gombault'
- Paeonia lactiflora 'Holbein'
- Paeonia lactiflora 'Kevin'
- Paeonia lactiflora 'Krinkled White'
- Paeonia lactiflora 'Lemon Chiffon'
- Paeonia lactiflora 'Madame Furtado'
- Paeonia lactiflora 'Modeste Guérin'
- Paeonia lactiflora 'Red Charme'
- Paeonia lactiflora 'Schwindt'
- Paeonia lactiflora 'Sonoma Sun'
- Paeonia lactiflora 'Sterntaler'
- Paeonia lactiflora 'Thoma'
- Paeonia lutea
- Paeonia lutea 'Angelet'
- Paeonia lutea 'Marchioness'
- Paeonia mairei
- Paeonia mascula subsp. arietina
- Paeonia mascula subsp. mascula
- Paeonia mascula subsp. russoi
- Paeonia mascula subsp. triternata
- Paeonia mlokosewitschii
- Paeonia officinalis
- Paeonia officinalis subsp. officinalis
- Paeonia peregrina
- Paeonia rockii
- Paeonia suffruticosa
- Paeonia suffruticosa 'Beauté de Twickel'
- Paeonia suffruticosa 'Kaoh'
- Paeonia suffruticosa 'Shichifukujin'
- Paeonia suffruticosa 'Shimanishiki'
- Paeonia suffruticosa 'Teni'
- Paeonia suffruticosa 'Yaezakura'
- Paeonia suffruticosa subsp. rockii
- Paeonia tenuifolia
- Paeonia veitchii
- Paeonia x lemoinei 'Boreas'
- Paeonia x lemoinei 'High Noon'
- Paeonia x lemoinei 'Iphigenie'
- Paeonia x lemoinei 'Leda'
- Pancratium illyricum
- Pandanus amaryllifolius
- Pandanus pygmaeus
- Pandanus tectorius
- Panicum miliaceum
- Panicum miliaceum 'Alba'
- Panicum virgatum 'Cloud Nine'
- Panicum virgatum 'Gold Fountain'
- Panicum virgatum 'Northwind'
- Panicum virgatum 'Rotstrahlbusch'
- Panicum virgatum 'Shenandoah'
- Panicum virgatum 'Warrior'
- Papaver alpinum
- Papaver alpinum subsp. alpinum
- Papaver bracteatum
- Papaver commutatum
- Papaver nudicaule
- Papaver orientale
- Papaver orientale 'Brilliant'
- Papaver orientale 'Juliane'
- Papaver orientale 'Marlene'
- Papaver orientale 'Patty's Plum'
- Papaver orientale 'Pink Lassie'
- Papaver orientale 'Pink Ruffles'
- Papaver orientale 'Sturmfackel'
- Papaver pilosum
- Papaver rhoeas
- Papaver somniferum
- Papaver somniferum 'Mieszko'
- Paphiopedilum Heide
- Paphiopedilum gratrixianum
- Paphiopedilum philippinense var. roebelenii
- Paphiopedilum sukhakulii
- Parahebe catarractae
- Paraserianthes lophantha
- Pardanthopsis dichotoma
- Parietaria officinalis
- Paris polyphylla
- Paris quadrifolia
- Parodia ayopayana
- Parodia haselbergii
- Parodia warasii
- Paronychia kapela subsp. kapela
- Paronychia kapela subsp. serpyllifolia
- Parrotia persica
- Parthenium integrifolium
- Parthenocissus henryana
- Parthenocissus himalaica
- Parthenocissus quinquefolia
- Parthenocissus quinquefolia 'Engelmannii'
- Parthenocissus tricuspidata
- Parthenocissus tricuspidata 'Green Spring'
- Parthenocissus tricuspidata 'Veitchii'
- Passiflora Amethyst
- Passiflora Anastasia
- Passiflora Andy
- Passiflora Crimson Tears
- Passiflora Flying V
- Passiflora Incense
- Passiflora Inspiration
- Passiflora Lady Margret
- Passiflora Oriental Sunset
- Passiflora Petra
- Passiflora Sunburst
- Passiflora Temptation
- Passiflora alata
- Passiflora amethystina
- Passiflora biflora
- Passiflora caerulea
- Passiflora caerulea 'Constance Elliott'
- Passiflora cincinnata
- Passiflora citrina
- Passiflora conzattiana
- Passiflora coriacea
- Passiflora edmundoi
- Passiflora edulis
- Passiflora holosericea
- Passiflora incarnata
- Passiflora ligularis
- Passiflora loefgrenii
- Passiflora manicata
- Passiflora morifolia
- Passiflora murucuja
- Passiflora oerstedii x retipetala
- Passiflora quinquangularis
- Passiflora racemosa
- Passiflora reflexiflora
- Passiflora sanguinolenta
- Passiflora tricuspis
- Passiflora tripartita var. mollissima
- Passiflora vitifolia
- Passiflora x belotii
- Passiflora x kewensis
- Passiflora x violacea
- Passiflora yucatanensis
- Pastinaca sativa
- Paulownia tomentosa
- Pavonia missionum
- Pavonia multiflora
- Peganum harmala
- Pelargonium Bird Dancer
- Pelargonium Chocolate Peppermint
- Pelargonium Clorinda
- Pelargonium Concolor Lace
- Pelargonium Magic Lantern
- Pelargonium Mrs. Kingsley
- Pelargonium Mrs. Pollock
- Pelargonium Vancouver Centennial
- Pelargonium acetosum
- Pelargonium alchemilloides
- Pelargonium caylae
- Pelargonium crispum 'Angeleyes Burgundy'
- Pelargonium crispum 'Angeleyes Orange'
- Pelargonium crispum 'Graziosa Merlot Red'
- Pelargonium crispum 'Variegatum'
- Pelargonium cucullatum
- Pelargonium cucullatum var. strigifolium
- Pelargonium fruticosum
- Pelargonium grandiflorum 'Aristo Beauty'
- Pelargonium ionidiflorum
- Pelargonium lobatum
- Pelargonium peltatum
- Pelargonium peltatum 'Acapulco'
- Pelargonium radens 'H.E. Morre'
- Pelargonium reniforme
- Pelargonium sidoides
- Pelargonium x blanfordianum
- Pelargonium x citrosmum
- Pelargonium x fragans 'Creamy Nutmeg'
- Pelargonium x graveolens 'Lady Plymouth'
- Peltaria alliacea
- Peltiphyllum peltatum
- Peltophorum pterocarpum
- Pemphis acidula
- Pennisetum alopecuroides
- Pennisetum alopecuroides 'Black Beauty'
- Pennisetum alopecuroides 'Hameln'
- Pennisetum alopecuroides 'Little Bunny'
- Pennisetum alopecuroides var. viridescens
- Pennisetum americanum 'Jester'
- Pennisetum americanum 'Purple Baron'
- Pennisetum americanum 'Purple Majesty'
- Pennisetum glaucum 'Jester'
- Pennisetum glaucum 'Purple Baron'
- Pennisetum glaucum 'Purple Majesty'
- Pennisetum macrourum 'White Lancer'
- Pennisetum orientale
- Pennisetum setaceum
- Pennisetum setaceum 'Kupfer'
- Pennisetum setaceum 'Pegasus'
- Pennisetum setaceum 'Rubrum'
- Pennisetum villosum
- Penstemon angustifolius
- Penstemon barbatus
- Penstemon barbatus 'Coccineus'
- Penstemon barbatus 'Praecox Nanus Rondo'
- Penstemon digitalis
- Penstemon digitalis 'Husker's Red'
- Penstemon gracilis
- Penstemon hartwegii
- Penstemon hartwegii 'Andenken an F. Hahn'
- Penstemon hartwegii 'Apple Blossom'
- Penstemon hartwegii 'Phoenix Lavender'
- Penstemon hartwegii 'Phoenix Violet'
- Penstemon hartwegii 'Rich Ruby'
- Penstemon hartwegii 'Schoenholzeri'
- Penstemon hirsutus
- Penstemon laevigatus
- Penstemon linarioides subspecies coloradoensis
- Penstemon ovatus
- Penstemon procerus var. tolmiei
- Penstemon pseudospectabilis
- Penstemon rydbergii
- Penstemon secundiflorus
- Penstemon serrulatus
- Pentaglottis sempervirens
- Pentas lanceolata
- Pentas lanceolata 'Graffiti Red Lace'
- Pentas lanceolata 'Graffiti Violet'
- Penthorum chinense
- Peperomia fraseri
- Peperomia griseoargentea
- Pereskia grandifolia
- Pereskiopsis porteri
- Pericallis Senetti Blue
- Pericallis Senetti Magenta
- Pericallis Senetti Magenta Bicolor
- Pericallis webbii
- Pericallis x hybrida
- Perilla frutescens
- Perilla frutescens var. nankinensis
- Periploca gracea
- Periploca sepium
- Pernettya mucronata
- Pernettya mucronata 'Purpurea'
- Peronospora sparsa
- Perovskia abrotanoides
- Perovskia abrotanoides 'Little Spire'
- Perovskia atriplicifolia
- Perovskia x superba
- Persicaria amphibia
- Persicaria capitata
- Persicaria filiformis 'Lance Corporal'
- Persicaria filiformis 'Painter's Palette'
- Persicaria hydropiper
- Persicaria lapathifolia
- Persicaria orientalis
- Petasites albus
- Petasites hybridus
- Petasites japonicus
- Petrea volubilis
- Petroselinum crispum
- Petroselinum crispum 'Grüne Perle'
- Petteria ramentacea
- Petunia Happytoonia Blue Vein
- Petunia Happytoonia Picotee Purple
- Petunia Happytoonia Yellow
- Petunia Million Bells
- Petunia Pastel Yellow
- Petunia Potunia Cappuccino
- Petunia Pretty Much Picasso
- Petunia Raspberry Blast
- Petunia Surfinia Blue Vein
- Petunia Surfinia Hot Pink
- Petunia Surfinia Merlot
- Petunia Surfinia Patio Lavender
- Petunia Surfinia Purple Vein
- Petunia Surfinia Rose Vein
- Petunia Surfinia Shihi Purple
- Petunia Surfinia Table Soft Pink
- Petunia Surfinia Table Yellow
- Petunia Surfinia Violet
- Petunia Surprise Grape
- Petunia Violet Dark Eye
- Peucedanum cervaria
- Peucedanum ostruthium
- Phacelia congesta
- Phacelia minor
- Phacelia tanacetifolia
- Phacelia viscida
- Phaedranassa tunguraguae
- Phalaenopsis Eva Xon 'Sunfire'
- Phalaenopsis Mini Mark
- Phalaenopsis Suemid x corringeanum
- Phalaenopsis equestris
- Phalaenopsis pallens
- Phalaris arundinacea 'Dwarf Garters'
- Phaseolus aborigineus
- Phaseolus coccineus
- Phaseolus vulgaris
- Phaseolus vulgaris var. nanus
- Phaseolus vulgaris var. nanus 'Valetta'
- Phaseolus vulgaris var. vulgaris
- Phaseolus vulgaris var. vulgaris 'Blauhilde'
- Phedimus aizoon
- Phedimus hybridus 'Immergrünchen'
- Phedimus kamtschaticus
- Phedimus kamtschaticus var. floriferum 'Weihenstephaner Gold'
- Phedimus spurius
- Phedimus spurius 'Fuldaglut'
- Phedimus spurius 'Roseum Superbum'
- Phedimus stevenianus
- Phegopteris connectilis
- Philadelphus Belle Etoile
- Philadelphus Erectus
- Philadelphus Natchez
- Philadelphus coronarius
- Philadelphus coronarius 'Aureus'
- Philadelphus mexicanus
- Philadelphus microphyllus
- Philadelphus satsumanus
- Philadelphus x virginalis
- Philodendron selloum 'Xanadu'
- Phlomis alpina
- Phlomis fruticosa
- Phlomis purpurea
- Phlomis russeliana
- Phlomis tuberosa
- Phlomis tuberosa 'Amazone'
- Phlox bifida 'Betty Blake'
- Phlox divaricata 'Chattahoochee'
- Phlox divaricata subsp. laphami
- Phlox drummondii
- Phlox drummondii 'Neon Pink'
- Phlox drummondii 'Petticoat'
- Phlox drummondii 'Summer Showers'
- Phlox maculata
- Phlox maculata 'Alpha'
- Phlox multiflora
- Phlox paniculata
- Phlox paniculata 'Dorffreude'
- Phlox paniculata 'Eva Foerster'
- Phlox paniculata 'Fashionably Early Crystal'
- Phlox paniculata 'Fashionably Early Princess'
- Phlox paniculata 'Fesselballon'
- Phlox paniculata 'Feuerspiegel'
- Phlox paniculata 'Frauenlob'
- Phlox paniculata 'Gräfin von Schwerin'
- Phlox paniculata 'Hochgesang'
- Phlox paniculata 'Kirchenfürst'
- Phlox paniculata 'Kirmesländler'
- Phlox paniculata 'Lachsjuwel'
- Phlox paniculata 'Landhochzeit'
- Phlox paniculata 'Monte Cristallo'
- Phlox paniculata 'Pastorale'
- Phlox paniculata 'Pink Eye Flame'
- Phlox paniculata 'Prospero'
- Phlox paniculata 'Puderquaste'
- Phlox paniculata 'Redivivus'
- Phlox paniculata 'Rosenlicht'
- Phlox paniculata 'Schneeferner'
- Phlox paniculata 'Tenor'
- Phlox paniculata 'Violetta Gloriosa'
- Phlox paniculata 'Wenn schon denn schon'
- Phlox paniculata 'Wilhelm Kesselring'
- Phlox paniculata 'Württembergia'
- Phlox stolonifera
- Phlox stolonifera 'Purpurea'
- Phlox stolonifera 'Violet Velvet'
- Phlox subulata
- Phlox subulata 'Alba'
- Phlox subulata 'Boranderie'
- Phlox subulata 'Emerald Cushion Blue'
- Phlox subulata 'G.W. Wilson'
- Phlox subulata 'Nettleton'
- Phlox subulata 'Scarlet Flame'
- Phoenix canariensis
- Phoenix roebelenii
- Phoenix sylvestris
- Phormium tenax 'Duet'
- Photinia arbutifolia
- Photinia beauverdiana var. notabilis
- Photinia davidiana
- Photinia serratifolia 'Pink Crispy'
- Photinia villosa
- Photinia x fraseri 'Camilvy'
- Photinia x fraseri 'Carré Rouge'
- Photinia x fraseri 'Little Red Robin'
- Photinia x fraseri 'Louise'
- Photinia x fraseri 'Pink Marble'
- Photinia x fraseri 'Red Robin'
- Photinia x fraseri 'Red Select'
- Photinia x prunifolia
- Photinia x prunifolia 'Aron'
- Photinia x prunifolia 'Karhumäki'
- Photinia x prunifolia 'Nero'
- Phragmipedium Living Fire
- Phragmipedium Memoria Dick Clements
- Phragmipedium besseae
- Phragmipedium besseae var. dalessandroi
- Phragmipedium x cardinale
- Phragmites australis
- Phragmites australis 'Variegatus'
- Phuopsis stylosa
- Phygelius capensis
- Phygelius x rectus 'Devils Tears'
- Phyllanthus cochinchinensis
- Phyllitis scolopendrium
- Phyllitis scolopendrium 'Angustifolium'
- Phyllobolus subpatens
- Phyllostachys aureosulcata
- Phyllostachys aureosulcata 'Aureocaulis'
- Phyllostachys aureosulcata 'Spectabilis'
- Phyllostachys bambusoides 'Castillonis'
- Phyllostachys bissetii
- Phyllostachys nigra
- Phyllostachys nigra 'Boryana'
- Phyllostachys nigra var. punctata
- Phyllostachys propinqua
- Phyllostachys viridiglaucescens
- Phyllostachys vivax
- Phyllostachys vivax 'Aureocaulis'
- Phyllostachys vivax 'Huanwnzhu Inversa'
- Physalis alkekengi
- Physalis alkekengi var. franchetii
- Physalis ixocarpa
- Physalis peruviana
- Physalis pruinosa
- Physocarpus opulifolius
- Physocarpus opulifolius 'Dart's Gold'
- Physocarpus opulifolius 'Diabolo'
- Physocarpus opulifolius 'Little Devil'
- Physocarpus opulifolius 'Summer Wine'
- Physochlaina orientalis
- Physostegia virginiana
- Physostegia virginiana 'Rose Queen'
- Phyteuma orbiculare
- Phytolacca acinosa
- Phytolacca americana
- Picea abies
- Picea abies 'Acrocona Nana'
- Picea abies 'Acrocona Push'
- Picea abies 'Acrocona'
- Picea abies 'Inversa'
- Picea abies 'Nidiformis'
- Picea abies 'Procumbens'
- Picea abies 'Pusch'
- Picea abies 'Viminalis'
- Picea breweriana
- Picea glauca
- Picea glauca 'Conica'
- Picea glauca 'Pixie'
- Picea jezoensis
- Picea omorika
- Picea omorika 'Pendula Bruns'
- Picea orientalis
- Picea orientalis 'Aureospicata'
- Picea pungens
- Picea pungens 'Białobok'
- Picea pungens 'Glauca Albospica'
- Picea pungens 'Glauca Globosa'
- Picea pungens 'Koster'
- Picea sitchensis
- Picea sitchensis 'Silberzwerg'
- Picea sitchensis 'Tenas'
- Picea spinulosa
- Picris hieracioides
- Pieris japonica
- Pieris japonica 'Brouwers Beauty'
- Pieris japonica 'Katsura'
- Pieris japonica 'Little Heath'
- Pieris japonica 'Mountain Fire'
- Pieris japonica 'Pink Passion'
- Pilea cadierei
- Pilea cardierei
- Pilea crassifolia
- Pilea grandifolia
- Pilea nummularifolia
- Pilea peperomioides
- Pilea repens
- Pilea repens 'Moon Valley'
- Pilea serpyllifolia
- Pilosella caespitosa
- Pimpinella anisum
- Pimpinella major
- Pinardia coronaria var. discolor
- Pinguicula cyclosecta x emarginata
- Pinguicula fiorii x grandiflora subsp. rosea
- Pinguicula grandiflora 'Rio Ara'
- Pinguicula grandiflora subsp. rosea x vallisneriifolia
- Pinguicula longifolia subsp. dertosensis
- Pinguicula moctezumae x emarginata
- Pinguicula moranensis
- Pinguicula nevadensis x poldinii
- Pinus aristata
- Pinus aristata 'Glauca'
- Pinus banksiana
- Pinus bungeana
- Pinus canariensis
- Pinus cembra
- Pinus cembra 'Nana'
- Pinus contorta
- Pinus contorta 'Chief Joseph'
- Pinus densiflora
- Pinus densiflora 'Low Glow'
- Pinus densiflora 'Oculus-Draconis'
- Pinus densiflora 'Umbraculifera'
- Pinus edulis
- Pinus flexilis
- Pinus halepensis
- Pinus halepensis var. minor
- Pinus heldreichii
- Pinus heldreichii 'Compact Gem'
- Pinus heldreichii 'Malinki'
- Pinus heldreichii 'Smidtii'
- Pinus mugo
- Pinus mugo 'Allgäu'
- Pinus mugo 'Benjamin'
- Pinus mugo 'Carsten'
- Pinus mugo 'Carstens Wintergold'
- Pinus mugo 'Gnom'
- Pinus mugo 'Grüne Welle'
- Pinus mugo 'Hesse'
- Pinus mugo 'Humpy'
- Pinus mugo 'Mini Mops'
- Pinus mugo 'Mops'
- Pinus mugo 'Ophir'
- Pinus mugo subsp. mugo
- Pinus mugo subsp. rotundata
- Pinus mugo subsp. uncinata
- Pinus mugo var. mughus
- Pinus mugo var. pumilio
- Pinus nigra
- Pinus nigra 'Green Tower'
- Pinus nigra 'Marie Brégeon'
- Pinus nigra 'Pierrick Brégeon'
- Pinus nigra 'Select'
- Pinus nigra var. nigra
- Pinus nigra var. poiretiana
- Pinus parviflora
- Pinus parviflora 'Glauca'
- Pinus patula
- Pinus ponderosa
- Pinus pumila
- Pinus pumila 'Glauca'
- Pinus roxburghii
- Pinus schwerinii
- Pinus strobus
- Pinus strobus 'Densa'
- Pinus strobus 'Nana'
- Pinus sylvestris
- Pinus sylvestris 'Aurea'
- Pinus sylvestris 'Glauca'
- Pinus sylvestris 'Watereri'
- Pinus taeda var. rigida
- Pinus thunbergii
- Pinus wallichiana
- Pinus x densithunbergii
- Piper betle
- Piper nigrum
- Piper ornatum
- Pistacia lentiscus
- Pistia stratiotes
- Pisum sativum
- Pisum sativum 'Blauwschokkers'
- Pittosporum buchananii
- Pittosporum crassifolium 'Variegatum'
- Pittosporum tenuifolium 'Garnettii'
- Pittosporum tenuifolium 'Tom Thumb'
- Pittosporum tenuifolium 'Variegatum'
- Pittosporum tobira
- Pittosporum tomentosum
- Pittosporum undulatum
- Plantago lanceolata
- Plantago major
- Plantago major 'Rosularis'
- Plantago media
- Platanthera bifolia
- Platanthera chlorantha
- Platanus orientalis
- Platanus x hispanica
- Platanus x hispanica 'Alphen's Globe'
- Platycarya strobilacea
- Platycerium bifurcatum
- Platycladus orientalis
- Platycodon grandiflorus
- Platycodon grandiflorus 'Mariesii Alba'
- Platycodon grandiflorus 'Mariesii'
- Plectranthus ambiguus 'Nico'
- Plectranthus coleoides
- Plectranthus coleoides 'Marginatus'
- Plectranthus forsteri
- Plectranthus forsteri 'Marginatus'
- Plectranthus fruticosus
- Plectranthus scutellarioides
- Plectranthus scutellarioides 'Bronze Age'
- Plectranthus scutellarioides 'Caipirinha'
- Plectranthus scutellarioides 'Combat'
- Plectranthus scutellarioides 'Fireball'
- Plectranthus scutellarioides 'Fishnet Stockings'
- Plectranthus scutellarioides 'Kiwi Fern'
- Plectranthus scutellarioides 'Malibu Apricot'
- Plectranthus scutellarioides 'Mission Gem'
- Plectranthus scutellarioides 'Nevada'
- Plectranthus scutellarioides 'Otto Mann'
- Plectranthus scutellarioides 'Pineapple Beauty'
- Plectranthus scutellarioides 'Saturan'
- Plectranthus scutellarioides 'Sedona'
- Plectranthus scutellarioides 'Wizard Mix'
- Plectranthus scutellarioides 'Wizard Sunset Orange'
- Pleioblastus auricomus
- Pleioblastus pygmaeus
- Pleioblastus pygmaeus var. distichus
- Pleioblastus variegatus
- Pleioblastus viridistriatus
- Pleione limprichtii
- Pleiospilos compactus
- Pleurothallis quadrifida
- Plumbago auriculata
- Plumeria rubra
- Plumeria rubra 'Carmine Flush'
- Plumeria rubra 'Jean Moragne'
- Podocarpus alpinus 'Blue Gem'
- Podophyllum hexandrum 'Majus'
- Podophyllum peltatum
- Podranea ricasoliana
- Polanisia dodecandra subsp. trachysperma
- Polemonium Lambrook Mauve
- Polemonium caeruleum
- Polemonium caeruleum 'Brise d'Anjou'
- Polemonium carneum
- Poliothyrsis sinensis
- Polygala chamaebuxus var. grandiflora
- Polygala myrtifolia
- Polygala virgata
- Polygonatum biflorum
- Polygonatum giganteum
- Polygonatum hirsutum
- Polygonatum latifolium
- Polygonatum multiflorum
- Polygonatum multiflorum 'Variegatum'
- Polygonatum odoratum
- Polygonatum odoratum var. pluriflorum 'Variegatum'
- Polygonum affine
- Polygonum affine 'Superba'
- Polygonum alpinum
- Polygonum alpinum 'Johanniswolke'
- Polygonum amphibium
- Polygonum amplexicaule
- Polygonum amplexicaule 'Atropurpureum'
- Polygonum amplexicaule 'Firetail'
- Polygonum amplexicaule 'JS Caliente'
- Polygonum amplexicaule 'JS Sangre'
- Polygonum amplexicaule 'Rosea'
- Polygonum aubertii
- Polygonum baldschuanicum
- Polygonum bistorta
- Polygonum bistorta 'Superbum'
- Polygonum filiforme 'Lance Corporal'
- Polygonum filiforme 'Painter's Palette'
- Polygonum hydropiper
- Polygonum lichiangense
- Polygonum orientale
- Polygonum polymorphum
- Polygonum polymorphum 'Johanniswolke'
- Polygonum sericeum
- Polygonum tortuosum
- Polygonum tortuosum 'Kahil'
- Polymnia uvedalia
- Polypodium phymatodes
- Polypodium subauriculatum
- Polypodium vulgare
- Polystichum aculeatum
- Polystichum braunii
- Polystichum polyblepharum
- Polystichum setiferum 'Plumosum Densum'
- Polystichum setiferum 'Proliferum Wollastonii'
- Polystichum setiferum 'Proliferum'
- Polytrichum formosum
- Poncirus trifoliata
- Pontechium maculatum
- Pontederia cordata
- Populus fremontii
- Populus tremula
- Populus tremuloides
- Populus x berolinensis
- Populus x canadensis
- Porophyllum ruderale
- Portulaca gilliesii
- Portulaca grandiflora
- Portulaca grandiflora 'Candy Stripe'
- Portulaca umbraticola
- Portulaca umbraticola 'Pazazz Salmon Glow'
- Portulacaria afra
- Potentilla William Rollison
- Potentilla alba
- Potentilla ambigua
- Potentilla anserina
- Potentilla aurea
- Potentilla cinerea
- Potentilla cuneata
- Potentilla fruticosa
- Potentilla fruticosa 'Abbotswood'
- Potentilla fruticosa 'Bellissima'
- Potentilla fruticosa 'Danny Boy'
- Potentilla fruticosa 'Farreri'
- Potentilla fruticosa 'Marian Red Robin'
- Potentilla fruticosa var. arbuscula
- Potentilla incana
- Potentilla micrantha
- Potentilla nepalensis
- Potentilla nepalensis 'Flammenspiel'
- Potentilla nepalensis 'Helen Jane'
- Potentilla nepalensis 'Miss Willmott'
- Potentilla neumanniana
- Potentilla nitida
- Potentilla pyrenaica
- Potentilla recta
- Potentilla recta 'Warrenii'
- Potentilla rupestris
- Potentilla tabernaemontani
- Premna microphylla
- Primula acaulis
- Primula acaulis 'Finesse Purpurrot'
- Primula acaulis 'Suzette'
- Primula auricula
- Primula beesiana
- Primula bulleyana
- Primula burmanica
- Primula chungensis
- Primula cortusoides
- Primula denticulata
- Primula denticulata 'Alba'
- Primula elatior
- Primula elatior 'Victoriana Silver Lace Black'
- Primula japonica
- Primula juliae
- Primula juliae 'Ostergruss'
- Primula malacoides
- Primula malacoides 'Lavender Shades'
- Primula marginata
- Primula obconica
- Primula obconica 'Twilly Salmon Spring'
- Primula palinuri
- Primula polyneura
- Primula pulverulenta
- Primula rosea
- Primula sieboldii
- Primula veris
- Primula veris 'Cabrillo'
- Primula veris subsp. macrocalyx
- Primula veris subsp. veris
- Primula vialii
- Primula vulgaris
- Primula vulgaris 'Finesse Purpurrot'
- Primula vulgaris 'Suzette'
- Primula vulgaris subsp. sibthorpii
- Primula x bullesiana
- Primula x kewensis
- Primula x pubescens
- Prinsepia sinensis
- Prinsepia uniflora
- Pritchardia pacifica
- Proboscidea louisianica
- Proiphys amboinensis
- Prostanthera cuneata
- Prostanthera rotundifolia
- Prostechea allemanoides
- Prosthechea cochleata
- Protea cynaroides
- Protea cynaroides 'Spring'
- Protea mundii
- Protea repens
- Prunella grandiflora
- Prunus Collingwood Ingram
- Prunus Kursar
- Prunus amygdaliformis
- Prunus armeniaca
- Prunus armeniaca 'Anegat'
- Prunus armeniaca 'Bergarouge'
- Prunus armeniaca 'Bergeron'
- Prunus armeniaca 'Bergerouge'
- Prunus armeniaca 'Big Red'
- Prunus armeniaca 'Faralia'
- Prunus armeniaca 'Farbaly'
- Prunus armeniaca 'Goldrich'
- Prunus armeniaca 'Hargrand'
- Prunus armeniaca 'Harlayne'
- Prunus armeniaca 'Harogem'
- Prunus armeniaca 'Orangered'
- Prunus armeniaca 'Pinkcot'
- Prunus armeniaca 'Tardicot'
- Prunus armeniaca 'Ungarische Beste'
- Prunus armeniaca 'Vanilla Cot'
- Prunus armeniaca 'Vertige'
- Prunus avium
- Prunus avium 'Annabella'
- Prunus avium 'Bianca'
- Prunus avium 'Bing'
- Prunus avium 'Büttners Rote Knorpel'
- Prunus avium 'Cainiola'
- Prunus avium 'Drogans Gelbe'
- Prunus avium 'Dönissens Gelbe Knorpelkirsche'
- Prunus avium 'Dönissens Gelbe'
- Prunus avium 'Gold'
- Prunus avium 'Große Prinzessinkirsche'
- Prunus avium 'Große Schwarze Knorpelkirsche'
- Prunus avium 'Hedelfinger Riesenkirsche'
- Prunus avium 'Hudson'
- Prunus avium 'Kanada'
- Prunus avium 'Lapins'
- Prunus avium 'Najella'
- Prunus avium 'Namati'
- Prunus avium 'Napoleon'
- Prunus avium 'Pendula'
- Prunus avium 'Plena'
- Prunus avium 'Rainier'
- Prunus avium 'Ria'
- Prunus avium 'Schneiders Späte Knorpel'
- Prunus avium 'Skeena'
- Prunus avium 'Stella'
- Prunus avium 'Sue'
- Prunus avium 'Sunburst'
- Prunus avium 'Valeska'
- Prunus cerasifera
- Prunus cerasifera 'Atropurpurea'
- Prunus cerasifera 'Nigra'
- Prunus cerasus
- Prunus cerasus 'Gerema'
- Prunus cerasus 'Kelleriis 14'
- Prunus cerasus 'Korund'
- Prunus cerasus 'Scharö'
- Prunus cerasus 'Schattenmorelle'
- Prunus cocomilia
- Prunus domestica
- Prunus domestica 'Anatolia'
- Prunus domestica 'Anna Späth'
- Prunus domestica 'Auerbacher'
- Prunus domestica 'Bellamira'
- Prunus domestica 'Bühler Frühzwetsche'
- Prunus domestica 'Cacaks Beste'
- Prunus domestica 'Cacaks Fruchtbare'
- Prunus domestica 'Chrudimer'
- Prunus domestica 'Elena'
- Prunus domestica 'Emma'
- Prunus domestica 'Haferpflaume'
- Prunus domestica 'Haganta'
- Prunus domestica 'Hanita'
- Prunus domestica 'Haroma'
- Prunus domestica 'Hauszwetsche'
- Prunus domestica 'Italienische Zwetsche'
- Prunus domestica 'Jojo'
- Prunus domestica 'Katinka'
- Prunus domestica 'Königin Viktoria'
- Prunus domestica 'Mirabelle von Nancy'
- Prunus domestica 'Miragrande'
- Prunus domestica 'Opal'
- Prunus domestica 'Plumtastic'
- Prunus domestica 'Presenta'
- Prunus domestica 'President'
- Prunus domestica 'Tegera'
- Prunus domestica 'The Czar'
- Prunus domestica 'Tipala'
- Prunus domestica 'Top Five'
- Prunus domestica 'Topend Plus'
- Prunus domestica 'Topfive'
- Prunus domestica 'Tophit'
- Prunus domestica 'Topper'
- Prunus domestica 'Topstar Plus'
- Prunus domestica 'Toptaste'
- Prunus domestica 'Valjevka'
- Prunus domestica 'Wangenheimer Frühzwetsche'
- Prunus domestica 'Zafira'
- Prunus domestica 'Zum Felde'
- Prunus domestica subsp. syriaca
- Prunus domestica subsp. syriaca 'Mirabelle aus Nancy'
- Prunus dulcis
- Prunus glandulosa 'Alboplena'
- Prunus incisa 'Kojou-no-mai'
- Prunus incisa x speciosa 'Umineko'
- Prunus japonica 'Engleri'
- Prunus laurocerasus
- Prunus laurocerasus 'Caucasica'
- Prunus laurocerasus 'Diana'
- Prunus laurocerasus 'Etna'
- Prunus laurocerasus 'Gajo'
- Prunus laurocerasus 'Genolia'
- Prunus laurocerasus 'Greenpeace'
- Prunus laurocerasus 'Ivory'
- Prunus laurocerasus 'Kleopatra'
- Prunus laurocerasus 'Obelisk'
- Prunus laurocerasus 'Otto Luyken'
- Prunus laurocerasus 'Renault Ace'
- Prunus laurocerasus 'Rotundifolia'
- Prunus laurocerasus 'Schipkaensis Macrophylla'
- Prunus laurocerasus 'Schipkaensis'
- Prunus lusitanica
- Prunus lusitanica 'Angustifolia'
- Prunus mahaleb
- Prunus microcarpa
- Prunus mume
- Prunus mume 'Beni-chi-dori’
- Prunus nipponica
- Prunus nipponica 'Brillant'
- Prunus padus
- Prunus padus 'Tiefurt'
- Prunus pendula
- Prunus persica
- Prunus persica 'Benedicte'
- Prunus persica 'Bero'
- Prunus persica 'Big Bang'
- Prunus persica 'Big Top'
- Prunus persica 'Bonanza'
- Prunus persica 'Cardinal'
- Prunus persica 'Collins'
- Prunus persica 'Early Devil'
- Prunus persica 'Elma'
- Prunus persica 'Früher Roter Ingelheimer'
- Prunus persica 'Helene'
- Prunus persica 'Jayhaven'
- Prunus persica 'Maura'
- Prunus persica 'Melred Weeping'
- Prunus persica 'Pilot'
- Prunus persica 'Poysdorfer Weingartenpfirsich'
- Prunus persica 'Proskauer'
- Prunus persica 'Red Haven'
- Prunus persica 'Revita'
- Prunus persica 'Roter Weinbergpfirsich'
- Prunus persica 'Royal Gem'
- Prunus persica 'Snowdrop'
- Prunus persica 'Spring Lady'
- Prunus persica 'Sun Haven'
- Prunus persica 'Super Crimson'
- Prunus persica 'Symphonie'
- Prunus persica 'Triumph'
- Prunus persica 'Winzertraum'
- Prunus persica var. nucipersica 'Harblaze'
- Prunus persica var. nucipersica 'Nectared 6'
- Prunus persica var. nucipersica 'Snow Queen'
- Prunus persica var. platerina
- Prunus persica var. platycarpa
- Prunus persica var. platycarpa 'Jalousie'
- Prunus persica var. platycarpa 'Platifun'
- Prunus persica var. platycarpa 'Sandwich gelb'
- Prunus persica var. platycarpa 'Saturne'
- Prunus persica var. platycarpa 'Ufo 3'
- Prunus persica var. platycarpa 'Ufo 4'
- Prunus prostrata
- Prunus pumila
- Prunus salicina
- Prunus sargentii
- Prunus serotina
- Prunus serrula
- Prunus serrulata
- Prunus serrulata 'Amanogawa'
- Prunus serrulata 'Kanzan'
- Prunus serrulata 'Kiku-shidare-zakura'
- Prunus serrulata 'Royal Burgundy'
- Prunus serrulata 'Shirofugen'
- Prunus speciosa
- Prunus spinosa
- Prunus spinosa 'Godenhaus'
- Prunus spinosa 'Primosa'
- Prunus subhirtella
- Prunus subhirtella 'Autumnalis Rosea'
- Prunus subhirtella 'Fukubana'
- Prunus subhirtella 'Okame'
- Prunus subhirtella 'Pendula Lanceolata'
- Prunus subhirtella 'Pendula'
- Prunus subhirtella x sargentii 'Accolade'
- Prunus tenella
- Prunus tenella 'Fire Hill'
- Prunus tomentosa
- Prunus tomentosa 'Orient'
- Prunus tomentosa 'Weito 6'
- Prunus triloba
- Prunus triloba 'Multiplex'
- Prunus virginiana
- Prunus x amygdalo-persica
- Prunus x cistena
- Prunus x dasycarpa
- Prunus x yedoensis
- Prunus x yedoensis 'Ivensii'
- Pseuderanthemum reticulatum
- Pseudobombax ellipticum
- Pseudocydonia sinensis
- Pseudofumaria alba
- Pseudofumaria lutea
- Pseudolarix amabilis
- Pseudolysimachion longifolium
- Pseudolysimachion longifolium 'Pink Damask'
- Pseudolysimachion spicatum
- Pseudolysimachion spicatum 'Lavender Lightsaber'
- Pseudolysimachion spicatum 'Rotfuchs'
- Pseudosasa amabilis
- Pseudosasa japonica
- Pseudosasa japonica 'Akebonosuji'
- Pseudotsuga menziesii
- Ptelea trifoliata
- Pterocarya fraxinifolia
- Pterocephalus dumetorum
- Ptilostemon afer
- Pulmonaria angustifolia
- Pulmonaria longifolia subsp. cevennensis
- Pulmonaria mollis
- Pulmonaria obscura
- Pulmonaria officinalis
- Pulmonaria rubra
- Pulmonaria saccharata 'Ice Ballet'
- Pulmonaria saccharata 'Margery Fish'
- Pulmonaria saccharata 'Mrs Moon'
- Pulmonaria saccharata 'Reginald Kaye'
- Pulmonaria saccharata 'Sissinghurst White'
- Pulsatilla alpina
- Pulsatilla armena
- Pulsatilla rubra
- Pulsatilla styriaca
- Pulsatilla vernalis
- Pulsatilla vulgaris
- Pulsatilla vulgaris 'Rote Glocke'
- Pulsatilla vulgaris 'Rubra'
- Pulsatilla vulgaris subsp. gotlandica
- Punica granatum
- Purshia mexicana
- Puschkinia scilloides
- Puya hromadnikii
- Puya mirabilis
- Pycnanthemum muticum
- Pycnanthemum pilosum 'Mount Davis'
- Pycnostachys urticifolia
- Pyracantha coccinea
- Pyracantha coccinea 'Orange Glow'
- Pyracantha coccinea 'Red Column'
- Pyracantha rogersiana
- Pyrostegia venusta
- Pyrus betulifolia
- Pyrus calleryana
- Pyrus canescens
- Pyrus communis
- Pyrus communis 'Abate Fetel'
- Pyrus communis 'Alexander Lucas'
- Pyrus communis 'Armida'
- Pyrus communis 'Benita'
- Pyrus communis 'Boscs Flaschenbirne'
- Pyrus communis 'Champirac'
- Pyrus communis 'Clapp's Favourite'
- Pyrus communis 'Clapps Liebling'
- Pyrus communis 'Concorde'
- Pyrus communis 'Condo'
- Pyrus communis 'Conference'
- Pyrus communis 'Dagmar'
- Pyrus communis 'Dana'
- Pyrus communis 'David'
- Pyrus communis 'Decora'
- Pyrus communis 'Delwilmor'
- Pyrus communis 'Dicolor'
- Pyrus communis 'Doppelte Phillipsbirne'
- Pyrus communis 'Durondeau de Tongre'
- Pyrus communis 'Eckehard'
- Pyrus communis 'Elektra'
- Pyrus communis 'Gellerts Butterbirne'
- Pyrus communis 'Gerburg'
- Pyrus communis 'Grand Champion'
- Pyrus communis 'Grüne Hoyerswerder'
- Pyrus communis 'Gute Luise von Avranches'
- Pyrus communis 'Général Leclerc'
- Pyrus communis 'Harrow Sweet'
- Pyrus communis 'Hochfeine Butterbirne'
- Pyrus communis 'Jeanne d'Arc'
- Pyrus communis 'Karina'
- Pyrus communis 'Kirilla'
- Pyrus communis 'Liegel's Winterbutterbirne'
- Pyrus communis 'Lombacad'
- Pyrus communis 'Madame Verte'
- Pyrus communis 'Nojabrskaja'
- Pyrus communis 'Nordhäuser Winterforelle'
- Pyrus communis 'Nouveau Poiteau'
- Pyrus communis 'Obelisk'
- Pyrus communis 'Olivier de Serres'
- Pyrus communis 'Pastorenbirne'
- Pyrus communis 'Petersbirne'
- Pyrus communis 'Pierre Corneille'
- Pyrus communis 'Progress'
- Pyrus communis 'Président Héron'
- Pyrus communis 'Rote Williams Christ'
- Pyrus communis 'Six' Butterbirne'
- Pyrus communis 'Sommerbutterbirne'
- Pyrus communis 'Starkrimson'
- Pyrus communis 'Uta'
- Pyrus communis 'Vereinsdechantbirne'
- Pyrus communis 'Williams Christ'
- Pyrus communis 'Xenia'
- Pyrus communis var. sativus
- Pyrus phaeocarpa
- Pyrus pyraster
- Pyrus pyrifolia 'An Ben Pear'
- Pyrus pyrifolia 'He Tu Pear'
- Pyrus pyrifolia 'Hosui'
- Pyrus pyrifolia 'Kil Tu Pear'
- Pyrus pyrifolia 'Kumoi'
- Pyrus pyrifolia 'Nijiseiki'
- Pyrus pyrifolia 'Nijisseiki'
- Pyrus pyrifolia 'Shinseiki'
- Pyrus pyrifolia 'Sik Chon Early'
- Pyrus pyrifolia 'Sin Chon Pear'
- Pyrus pyrifolia 'Syn Wy Tu Pear'
- Pyrus pyrifolia 'Syn Wy Tu'
- Pyrus pyrifolia 'Wan Phyon Pear'
- Pyrus regelii
- Pyrus salicifolia
- Pyrus salicifolia 'Pendula'
- Pyrus ussuriensis