Oxalis incarnata
Pale Pink-sorrel
Oxalis triangularis
False Shamrock
Oxybasis glauca
Oak-leaved Goosefoot
Oxybasis rubra
Red Goosefoot
Paeonia peregrina
Peony
Pancratium maritimum
Sea Daffodil
Papaver cambricum
Welsh Poppy
Papaver dubium
Long-headed Poppy
Papaver lecoqii
Yellow-juiced Poppy
Papaver rhoeas
Common Poppy
Papaver setiferum
Oriental Poppy
Paphiopedilum callosum
Callus Paphiopedilum
Paphiopedilum hirsutissimum
Paphiopedilum spp.
Ladyslipper
Parentucellia viscosa
Yellow Bartsia
Parietaria judaica
Pellitory-of-the-wall
Paris quadrifolia
Herb-paris
Parnassia palustris
Grass-of-Parnassus
Passiflora caerulea
Blue Passionflower
Passiflora capsularis
Passion#Flower#(capsularis)
Passiflora foetida
Stinking Passionflower
Pastinaca sativa
Wild Parsnip
Paulownia tomentosa
Foxglove-tree
Pedicularis foliosa
Leafy Lousewort
Pedicularis palustris
Marsh Lousewort
Pedicularis sylvatica
Lousewort
Pelargonium zonale
Zonal Geranium
Pentaglottis sempervirens
Green Alkanet
Pentas lanceolata
Egyptian Starcluster
Persicaria amphibia
Amphibious Bistort
Persicaria chinensis
Chinese Knotweed
Persicaria hydropiper
Water-pepper
Persicaria lapathifolia
Pale Persicaria
Persicaria maculosa
Redshank
Persicaria minor
Small Water-pepper
Persicaria mitis
Tasteless Water-pepper
Petasites hybridus
Butterbur
Petasites japonicus
Giant Butterbur
Petasites pyrenaicus
Winter Heliotrope
Petasites spurius
Petrorhagia prolifera
Proliferous Pink
Petrosedum forsterianum
Rock Stonecrop
Petrosedum rupestre
Reflexed Stonecrop
Petroselinum crispum
Garden Parsley
Phacelia tanacetifolia
Phacelia
Phalaenopsis amabilis
Moon Orchid
Phalaris canariensis
Canary-grass
Phedimus kamtschaticus
Kamchatka Stonecrop
Phedimus spurius
Caucasian-stonecrop
Phelipanche purpurea
Yarrow Broomrape
Philadelphus
Double Mock-orange
Philadelphus coronarius
Mock-orange
Phleum pratense
Timothy
Phlomis russeliana
Turkish Sage
Phormium cookianum
Lesser New Zealand Flax
Phuopsis stylosa
Caucasian Crosswort
Picris hieracioides
Hawkweed Oxtongue
Pieris formosa
Pieris japonica
Pieris
Pilea microphylla
Angeloweed
Pilosella aurantiaca
Fox-and-cubs
Pilosella officinarum
Mouse-ear-hawkweed
Pimpinella saxifraga
Burnet-saxifrage
Pinguicula grandiflora
Large-flowered Butterwort
Pinguicula leptoceras
Pinguicula lusitanica
Pale Butterwort
Pinguicula vulgaris
Common Butterwort
Pinus sylvestris
Scots Pine
Pithecellobium dulce
Manila Tamarind
Plantago coronopus
Buck's-horn Plantain