Pastinaca sativa
Wild Parsnip
Paulownia tomentosa
Foxglove-tree
Pedicularis palustris
Marsh Lousewort
Pedicularis sylvatica
Lousewort
Penstemon sp.
Penstemon
Pentaglottis sempervirens
Green Alkanet
Persicaria amphibia
Amphibious Bistort
Persicaria hydropiper
Water-pepper
Persicaria lapathifolia
Pale Persicaria
Persicaria maculosa
Redshank
Persicaria minor
Small Water-pepper
Persicaria mitis
Tasteless Water-pepper
Petasites hybridus
Butterbur
Petasites japonicus
Giant Butterbur
Petasites pyrenaicus
Winter Heliotrope
Petasites spurius
Petrosedum forsterianum
Rock Stonecrop
Petrosedum rupestre
Reflexed Stonecrop
Phalaris arundinacea
Reed Canary-grass
Phalaris canariensis
Canary-grass
Phanera kockiana
Orange Bauhinia
Phedimus spurius
Caucasian-stonecrop
Phegopteris connectilis
Beech Fern
Phelipanche purpurea
Yarrow Broomrape