Phacelia tanacetifolia
Phacelia
Phalaris arundinacea
Reed Canary-grass
Phegopteris connectilis
Beech Fern
Philadelphus coronarius
Mock-orange
Physalis peruviana
Cape-gooseberry
Picris hieracioides
Hawkweed Oxtongue
Pilosella aurantiaca
Fox-and-cubs
Pilosella officinarum
Mouse-ear-hawkweed
Pilularia globulifera
Pillwort
Pimpinella saxifraga
Burnet-saxifrage
Plantago lanceolata
Ribwort Plantain
Platanus x hispanica
London Plane
Polygala serpyllifolia
Heath Milkwort
Polygala vulgaris
Common Milkwort
Polygonatum verticillatum
Whorled Solomon's-seal
Polygonum aviculare
Knotgrass
Polygonum depressum
Equal-leaved Knotgrass
Polygonum oxyspermum
Ray's Knotgrass
Potamogeton lucens
Shining Pondweed
Potamogeton polygonifolius
Bog Pondweed
Potentilla reptans
Creeping Cinquefoil
Potentilla rupestris
Rock Cinquefoil
Potentilla sterilis
Barren Strawberry
Primula elatior
Oxlip