Philadelphus coronarius
Mock-orange
Phleum bertolonii
Smaller Cat's-tail
Phleum pratense
Timothy
Pholiota squarrosa
Shaggy Scalycap
Phragmites australis
Common Reed
Picea abies
Norway Spruce
Picris hieracioides
Hawkweed Oxtongue
Pilosella officinarum
Mouse-ear-hawkweed
Pilularia globulifera
Pillwort
Pimpinella saxifraga
Burnet-saxifrage
Pinguicula vulgaris
Common Butterwort
Pinus sylvestris
Scots Pine
Plagiomnium undulatum
Hart’s-tongue Thyme-moss
Plantago coronopus
Buck's-horn Plantain
Plantago lanceolata
Ribwort Plantain
Plantago major
Greater Plantain (subspecies intermedia)
Platanthera chlorantha
Greater Butterfly-orchid
Platanus x hispanica
London Plane
Poa trivialis
Rough Meadow-grass
Pogonatum aloides
Aloe Haircap
Polygala serpyllifolia
Heath Milkwort
Polygala vulgaris
Common Milkwort
Polygonatum odoratum
Angular Solomon's-seal
Polygonatum x hybridum
Garden Solomon's-seal