Neottia cordata
Lesser Twayblade
Odontites vernus
Red Bartsia
Oenanthe crocata
Hemlock Water-dropwort
Ophioglossum vulgatum
Adder's-tongue
Ophioparma ventosa
Blood-spot Lichen
Orchis mascula
Early-purple Orchid
Origanum vulgare
Wild Marjoram
Ornithopus perpusillus
Bird's-foot
Osmunda regalis
Royal Fern
Papaver cambricum
Welsh Poppy
Pedicularis palustris
Marsh Lousewort
Persicaria maculosa
Redshank
Petrosedum forsterianum
Rock Stonecrop
Phragmidium sp.
Phragmites australis
Common Reed
Physcia aipolia
Pilosella aurantiaca
Fox-and-cubs
Pilosella officinarum
Mouse-ear-hawkweed
Pilularia globulifera
Pillwort
Piptoporus quercinus
Oak Bracket fungus
Plantago lanceolata
Ribwort Plantain
Polygala vulgaris
Common Milkwort
Polystichum aculeatum
Hard Shield-fern
Polytrichum commune
Common haircap