Pseuderanthemum grandiflorum
Blue Twilight
Pseuderanthemum maculatum
Ruspolia
Pseuderanthemum variabile
Pastel Flower
Pseudorchis albida
Small-white Orchid
Psidium guajava
Common Guava
Pteridium aquilinum
Bracken
Pteridium esculentum
Austral Bracken
Pterocarpus indicus
Amboyna Wood
Pterospermum diversifolium
Bayok Tree
Ptilidium ciliare
Ciliated Fringewort
Ptisana fraxinea
Pitted Potato Fern
Pulsatilla alpina
Alpine Pasque#Flower
Pulsatilla pratensis
Small Pasque#Flower
Pyrola minor
Common Wintergreen
Pyrola rotundifolia
Round-leaved Wintergreen
Pyrossia lingua
Tongue Fern
Pyrrosia lanceolata
Lanceleaf Tongue Fern
Pyrrosia piloselloides
Dragon Scale Fern
Pyrus communis
Pear
Pyrus cordata
Plymouth Pear
Radermachera yunnanensis
Ramalina fastigiata
Ranunculus sardous
Hairy Buttercup
Raphanus raphanistrum
Wild Radish
Ravenala madagascariensis
East-West Palm
Reseda lutea
Wild Mignonette
Rhamnus cathartica
Buckthorn
Rhinanthus alectorolophus
European Yellow-rattle
Rhizophora mangle
Red Mangrove
Rhodiola rosea
Roseroot
Riccia flutians
Floating Crystalwort
Ricinus communis
Castor-oil-plant
Rivini humilis
Bloodberry
Rosa arvensis
Field-rose
Rosa rubiginosa
Sweet-briar
Rubia peregrina
Wild Madder
Rubus fraxinifolius
Mountain Raspberry
Ruella simplex
Mexican Petunia
Ruellia tuberosa
Minnieroot
Rumex confertus
Russian Dock
Russelia equisetiformis
Firecracker Plant
Sabulina verna
Spring Sandwort
Sagina nodosa
Knotted Pearlwort
Sagina procumbens
Procumbent Pearlwort
Sagittaria sagittifolia
Arrowhead
Salix herbacea
Dwarf Willow
Salpichroa origanifolia
Cock's-eggs
Salvia farinacea
Mealy Sage
Salvia hispanica
Golden Chia
Salvia involucrata
Rosy-leaf sage
Salvia leucanthe
Mexican Bush Sage
Salvia pratensis
Meadow Clary
Salvia splendens
Bonfire Salvia
Samanea saman
Saman
Sambucus canadensis
American Elderberry
Sambucus ebulus
Dwarf Elder
Sanchezia oblonga
Zebra Plant
Sandoricum koetjape
Santol
Saraca indica
Asoka Tree
Saturnia pavonia
Emperor Moth Caterpillar
Saxifraga granulata
Meadow Saxifrage
Saxifraga hypnoides
Mossy Saxifrage
Saxifraga oppositifolia
Purple Saxifrage
Saxifraga rotundifolia
Round-leaved Saxifrage
Saxifraga tridactylites
Rue-leaved Saxifrage
Scabiosa columbaria
Small Scabious
Schaueria calytricha
Golden Plume
Schedonorus giganteus
Giant Fescue
Scheuchzeria palustris
Rannoch-rush
Schismatoglottis calyptrata
Dukaruk