Ornithopus perpusillus
Bird's-foot
Orobanche caryophyllacea
Bedstraw Broomrape
Orobanche hederae
Ivy Broomrape
Orobanche minor
Common Broomrape
Orobanche picridis
Oxtongue Broomrape
Orobanche purpurea
Yarrow Broomrape
Orthilia secunda
Serrated Wintergreen
Osmunda regalis
Royal Fern
Oxalis acetosella
Wood-sorrel
Parietaria judaica
Pellitory-of-the-wall
Paris quadrifolia
Herb-paris
Pastinaca sativa
Wild Parsnip
Pedicularis palustris
Marsh Lousewort
Pedicularis sylvatica
Lousewort
Pentaglottis sempervirens
Green Alkanet
Persicaria amphibia
Amphibious Bistort
Persicaria bistorta
Common Bistort
Persicaria hydropiper
Water-pepper
Persicaria maculosa
Redshank
Persicaria minor
Small Water-pepper
Persicaria wallichii
Himalayan Knotweed
Petasites fragrans
Winter Heliotrope
Petasites hybridus
Butterbur
Petasites japonicus
Giant Butterbur