Poterium sanguisorba
Salad Burnet
Preissia quadrata
Primula elatior
Oxlip
Primula veris
Cowslip
Primula vulgaris
Primrose
Primula x polyantha
False Oxlip
Prunella vulgaris
Selfheal
Prunus avium
Wild Cherry
Prunus cerasifera
Cherry Plum
Prunus domestica
Wild Plum
Prunus laurocerasus
Cherry Laurel
Prunus padus
Bird Cherry
Prunus spinosa
Blackthorn
Pseudofumaria lutea
Yellow Corydalis
Pseudorchis albida
Small-white Orchid
Pseudotsuga menziesii
Douglas Fir
Pteridium aquilinum
Bracken
Pterogonium gracile
Bird's-foot Wing-moss
Ptilidium ciliare
Ciliated Fringewort
Puccina coronata
Crown Rust
Puccinia chaerophyllae
Puccinia iridis
Pulicaria dysenterica
Common Fleabane
Pulmonaria officinalis
Lungwort
Pulsatilla vulgaris
Pasqueflower
Pyrola minor
Common Wintergreen
Pyrola rotundifolia
Round-leaved Wintergreen
Pyrus communis
Pear
Pyrus pyraster
Wild Pear
Quercus cerris
Turkey Oak
Quercus ilex
Evergreen Oak
Quercus petraea
Sessile Oak
Quercus robur
Pedunculate Oak
Quercus rubra
Red Oak
Quercus suber
Cork Oak
Quercus x rosacea
Ramalina calicaris
Cartilage Lichen
Ramalina cuspidata
Sea Ivory
Ramalina farinacea
Ramalina fastigiata
Ramariopsis kunzei
White Coral
Ranunculus acris
Meadow Buttercup
Ranunculus aquatilis
Common Water-crowfoot
Ranunculus auricomus
Goldilocks Buttercup
Ranunculus baudotii
Brackish Water-crowfoot
Ranunculus bulbosus
Bulbous Buttercup
Ranunculus flammula
Lesser Spearwort
Ranunculus fluitans
River Water-crowfoot
Ranunculus hederaceus
Ivy-leaved Crowfoot
Ranunculus lingua
Greater Spearwort
Ranunculus omiophyllus
Round-leaved Crowfoot
Ranunculus parviflorus
Small-flowered Buttercup
Ranunculus peltatus
Pond Water-crowfoot
Ranunculus penicillatus
Stream Water-crowfoot
Ranunculus repens
Creeping Buttercup
Ranunculus sardous
Hairy Buttercup
Ranunculus sceleratus
Celery-leaved Buttercup
Ranunculus trichophyllus
Thread-leaved Water-crowfoot
Raphanus raphanistrum
Radish
Raphanus sativus
Garden Radish
Reseda lutea
Wild Mignonette
Reseda luteola
Weld
Reynoutria japonica
Japanese Knotweed
Rhamnus cathartica
Buckthorn
Rhinanthus angustifolius
Greater Yellow-rattle
Rhinanthus minor
Yellow-rattle
Rhizocarpon geographicum
Map Lichen
Rhodiola rosea
Roseroot
Rhododendron ponticum
Rhododendron
Rhynchospora alba
White Beak-sedge