Picris hieracioides
Hawkweed Oxtongue
Pilosella officinarum
Mouse-ear-hawkweed
Pilularia globulifera
Pillwort
Pimpinella saxifraga
Burnet-saxifrage
Pinguicula grandiflora
Large-flowered Butterwort
Pinguicula lusitanica
Pale Butterwort
Pinguicula vulgaris
Common Butterwort
Pinus sylvestris
Scots Pine
Plantago coronopus
Buck's-horn Plantain
Plantago lanceolata
Ribwort Plantain
Plantago major
Greater Plantain
Plantago maritima
Sea Plantain
Plantago media
Hoary Plantain
Platanthera bifolia
Lesser Butterfly-orchid
Platanthera chlorantha
Greater Butterfly-orchid
Poa annua
Annual Meadow-grass
Poa compressa
Flattened Meadow-grass
Poa humilis
Spreading Meadow-grass
Poa trivialis
Rough Meadow-grass
Polemonium caeruleum
Jacob's-ladder
Polygala calcarea
Chalk Milkwort
Polygala serpyllifolia
Heath Milkwort
Polygala vulgaris
Common Milkwort
Polygonatum multiflorum
Solomon's-seal
Polygonatum odoratum
Angular Solomon's-seal
Polygonatum verticillatum
Whorled Solomon's-seal
Polygonum aviculare
Knotgrass
Polygonum oxyspermum
Ray's Knotgrass
Polypodium cambricum
Southern Polypody
Polypodium interjectum
Intermediate Polypody
Polypodium vulgare
Polypody
Polypodium vulgare sens. lat.
Polypody
Polystichum aculeatum
Hard Shield-fern
Polystichum lonchitis
Holly-fern
Polystichum setiferum
Soft Shield-fern
Populus nigra
Black-poplar
Populus tremula
Aspen
Potamogeton coloratus
Fen Pondweed
Potamogeton crispus
Curled Pondweed
Potamogeton lucens
Shining Pondweed
Potamogeton natans
Broad-leaved Pondweed
Potamogeton polygonifolius
Bog Pondweed
Potentilla anserina
Silverweed
Potentilla erecta
Tormentil
Potentilla indica
Yellow-flowered Strawberry
Potentilla reptans
Creeping Cinquefoil
Potentilla rupestris
Rock Cinquefoil
Potentilla sterilis
Barren Strawberry
Potentilla verna
Spring Cinquefoil
Poterium sanguisorba
Salad Burnet
Primula elatior
Oxlip
Primula farinosa
Bird's-eye Primrose
Primula veris
Cowslip
Primula vulgaris
Primrose
Primula x polyantha
False Oxlip
Prunella vulgaris
Selfheal
Prunus avium
Wild Cherry
Prunus padus
Bird Cherry
Prunus spinosa
Blackthorn
Pseudorchis albida
Small-white Orchid
Pteridium aquilinum
Bracken
Pulicaria dysenterica
Common Fleabane
Pulsatilla vulgaris
Pasqueflower
Pyrola minor
Common Wintergreen
Pyrola rotundifolia
Round-leaved Wintergreen
Quercus petraea
Sessile Oak
Quercus robur
Pedunculate Oak
Quercus x rosacea
Ranunculus acris
Meadow Buttercup
Ranunculus aquatilis
Common Water-crowfoot