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
Pisum sativum
Garden Pea
Plantago lanceolata
Ribwort Plantain
Platanus x hispanica
London Plane
Polygala serpyllifolia
Heath Milkwort
Polygala vulgaris
Common Milkwort
Polygonatum verticillatum
Whorled Solomon's-seal
Polygonum arenastrum
Equal-leaved Knotgrass
Polygonum aviculare
Knotgrass
Polygonum oxyspermum
Ray's Knotgrass
Polygonum polycnemiforme
Potamogeton lucens
Shining Pondweed
Potamogeton polygonifolius
Bog Pondweed
Potentilla reptans
Creeping Cinquefoil
Potentilla rupestris
Rock Cinquefoil
Potentilla sterilis
Barren Strawberry