Orchis simia
Monkey Orchid
Orchis x angusticruris
Lady#Orchid#/ Monkey#Orchid#hybrid
Oreopteris limbosperma
Lemon-scented Fern
Origanum vulgare
Wild Marjoram
Ornithopus perpusillus
Bird's-foot
Orobanche caryophyllacea
Bedstraw Broomrape
Orobanche hederae
Ivy Broomrape
Orobanche minor
Common Broomrape
Orobanche rapum-genistae
Greater Broomrape
Orthilia secunda
Serrated Wintergreen
Osmoxylon lineare
Green Aralia
Osmunda regalis
Royal Fern
Oxalis acetosella
Wood-sorrel
Oxalis articulata
Pink-sorrel
Oxalis incarnata
Pale Pink-sorrel
Oxybasis glauca
Oak-leaved Goosefoot
Oxybasis rubra
Red Goosefoot
Pachira glabra
French Peanut
Palhinhaea cernua
Staghorn Clubmoss
Pancratium maritimum
Sea Daffodil
Pandanus tectorius
Thatch Screwpine
Papaver cambricum
Welsh Poppy
Paphiopedilum callosum
Callus Paphiopedilum
Paphiopedilum hirsutissimum
Parentucellia viscosa
Yellow Bartsia
Parietaria judaica
Pellitory-of-the-wall
Paris quadrifolia
Herb-paris
Parnassia palustris
Grass-of-Parnassus
Pastinaca sativa
Wild Parsnip
Paulownia tomentosa
Foxglove-tree
Pedicularis palustris
Marsh Lousewort
Pedicularis sylvatica
Lousewort
Penstemon sp.
Penstemon
Pentaglottis sempervirens
Green Alkanet
Pereskia aculeata
Barbados Gooseberry
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
Philadelphus
Double Mock-orange
Philodendron burle-marxii
Burle Marx's Philodendron
Philodendron erebuscens
Blushing Philodendron
Philodendron martianum
Pacová
Phleum arenarium
Sand Cat's-tail
Phleum pratense
Timothy
Phlomis russeliana
Turkish Sage
Phoenix dactylifera
Date Palm
Phormium cookianum
Lesser New Zealand Flax
Phuopsis stylosa
Caucasian Crosswort
Phyllanthus urinaria
Chamber Bitter
Phyteuma nigrum
Black Rampion
Picea breweriana
Brewer Spruce
Picea koyamai
Kotama's Spruce
Picea sitchensis
Sitka Spruce
Picea smithiana
Morinda Spruce
Picris hieracioides
Hawkweed Oxtongue