Q * 
* Quaking-Grass, Common
* Quaking-Grass, Large
* Quercus ilex
* Quercus petraea
* Quercus pubescens
* Quercus robur
* Quillwort
* Quillwort of Durieu
* Quillwort, Spring
* Quince
* Quince, Japanese
R * * Rabelera holostea
* Radiole faux-lin
* Radish, Wild
* Ragged Robin
* Ragweed, Common
* Ragwort
* Ragwort [Rodez]
* Ragwort, [Greek]
* Ragwort, Adonis leaved
* Ragwort, Broad-leaved
* Ragwort, Chamois
* Ragwort, Hoary
* Ragwort, Narrow-leaved
* Ragwort, of Fuchs
* Ragwort, Provencal
* Ragwort, Rodez
* Raiponce à têtes hemishperiques
* Raiponce de France
* Raiponce en epis
* Raiponce globulaire
* Raisin d'amérique
* Rampion, French
* Rampion, Globe-headed horned
* Rampion, Round-headed
* Rampion, Spiked
* Ramsons
Ran * * Rannock-rush
* Ranuncle graminoide
* Ranunculus aconitifolius
* Ranunculus acris subsp. acris
* Ranunculus aquatilis
* Ranunculus arvensis
* Ranunculus auricomus
* Ranunculus bulbosus
* Ranunculus circinatus
* Ranunculus flammula
* Ranunculus gramineus
* Ranunculus hederaceus
* Ranunculus monspeliacus
* Ranunculus nodiflorus
* Ranunculus paludosus
* Ranunculus parviflorus subsp. parviflorus
* Ranunculus penicillatus subsp. pseudofluitans
* Ranunculus platanifolius
* Ranunculus repens
* Ranunculus serpens
* Ranunculus trichophyllus subsp. trichophyllus
* Ranunculus tuberosus
* Raphanus raphanistrum subsp. raphanistrum
* Raspberry
* Ravenelle
* Ray-grass anglais,Ivraie
* Ray-grass d'Italie
Re * * Redwood, Californian
* Reed, Common
* Reed-Grass, Feather
* Reedmace, Greater
* Reine-des-prés
* Reine-marguerite
* Reine-marguerite
* Renoncule à feuilles capillaires
* Renoncule à feuilles d'aconit
* Renoncule à feuilles de lierre
* Renoncule à feuilles de platane
* Renoncule à fleurs nodales
* Renoncule à grappe
* Renoncule à petite fleurs
* Renoncule aquatique
* Renoncule bulbeuse
* Renoncule de Montpellier
* Renoncule des bois
* Renoncule des champs
* Renoncule des marais
* Renoncule en crosse
* Renoncule flammette
* Renoncule radicante
* Renoncule rampante
* Renoncule tete-d'or
* Renouée à feuilles de patience
* Renouée bistorte, Serpentaire
* Renouée de Chine
* Renouée de Japon
* Renouée des graviers
* Renouée des haies
* Renouée des oiseaux
* Renouée faux liseron
* Renouée persicaire, Pied rouge
* Réséda de Jacquin
* Reseda des teinturiers
* Reseda jacquinii
* Réséda jaune, Mignonette
* Reseda lutea
* Reseda luteola
* Reseda phyteuma
* Réséda raiponce
* Restharrow, (spinless)
* Restharrow, Large Yellow
* Restharrow, Pygmy
* Restharrow, round-leaved
* Restharrow, Small
* Restharrow, Striped
* Reynoutria japonica
Rh * * Rhamnus alaternus
* Rhamnus alpina
* Rhamnus cathartica
* Rhamnus saxatilis
* Rhaponticum coniferum
* Rhinanthe crête-de-coq
* Rhinanthe du midi
* Rhinanthus alectorolophus
* Rhinanthus minor
* Rhinanthus pumilus
* Rhododendron
* Rhododendron ×intermedium
* Rhododendron à feuilles de Myrte
* Rhododendron ponticum
* Rhododendron pontique
* Rhododendron, [Myrtle-leaved]
* Rhus typhina
* Rhynchospora alba
* Rhynchospora blanc (m.)
* Ribes alpinum
* Ribes petraeum
* Ribes uva-crispa
Ro * * Robinia pseudoacacia
* Robinier, faux-acacia
* Rock-cress, [Cabbage-leaved]
* Rock-cress, [Eared]
* Rock-cress, [Hilly]
* Rock-cress, Alpine
* Rockcress, Cévenol
* Rock-cress, Hairy
* Rock-cress, Tower
* Rocket, Salad
* Rocket, White
* Rock-Rose, (Mountain)
* Rock-Rose, Apennine
* Rock-Rose, Common
* Rock-Rose, Spotted
* Ronce
* Ronce à feuilles d'orme
* Ronce à grandes feuilles
* Ronce blanchâtre
* Ronce bleue
* Ronce des rochers
* Roquette
* Roquette blanche
* Roquette d'Orient
* Rorippa amphibia
* Rorippa pyrenaica
* Rorippa sylvestris
* Rorippe des Pyrenées
Ros * * Rosa agrestis
* Rosa arvensis
* Rosa canina
* Rosa glauca
* Rosa micrantha
* Rosa moyesii
* Rosa pendulina
* Rosa rugosa
* Rosa spinosissima subsp. spinosissima
* Rosa tomentosa
* Rosa villosa
* Rosa vosagiaca
* Rose trémière
* Rose, Alpine
* Rose, Burnet
* Rose, Dog
* Rose, Downy
* Rose, Japanese
* Rose, Moyes
* Rose, Red-leaved
* Rose, Soft-leaved
* Rose, Thick-leaved
* Rose, Trailing
* Roseau commun
* Rosemary
* Rosier
* Rosier de Moyes
* Rosier des Alpes
* Rosier des Vosges
* Rosier glauque
* Rosier pimprenelle
* Rosier rugueux
* Rosmarin
* Rosmarinus officinalis
* Rossolis à feuilles rondes
* Rostraria cristata
* Rouette
* Rowan
Ru * * Rubanier émergé
* Rubble Dock
* Rubéole
* Rubia peregrina subsp. peregrina
* Rubus ×uncinellus
* Rubus caesius
* Rubus canescens
* Rubus idaeus
* Rubus macrophyllus
* Rubus saxatilis
* Rubus ulmifolius
* Rue à feuilles étroites
* Rue des murailles
* Rue, Egyptian
* Rue-anemone
* Ruine de Rome
* Rumex acetosa subsp. acetosa
* Rumex acetosella
* Rumex aggloméré
* Rumex conglomeratus
* Rumex crépu
* Rumex crépu de Florac
* Rumex crispus
* Rumex longifolius
* Rumex obtusifolius subsp. obtusifolius
* Rumex pulcher subsp. pulcher
* Rumex sanguineus
* Rumex scutatus
* Rumex xdimidiatus
* Rupture-wort, Grey
* Rupture-wort, Hairy
* Rupture-wort, Smooth
Rus * * Ruscus aculeatus
* Rush skeletonweed
* Rush, Alpine
* Rush, Bulbous
* Rush, Dwarf
* Rush, Dwarf
* Rush, Hard
* Rush, Heath
* Rush, Jointed
* Rush, Sharp-flowered
* Rush, Slender
* Rush, Soft
* Rush, Thread
* Rush, Three-leaved
* Rush, Toad
* Rustyback
* Ruta angustifolia
* Rye
* Rye-grass, Italian
* Rye-grass, Perennial
* Rye-grass, Rigid
S * * Sabline (f.) à feuilles de serpolet
* Sabline (f.) à tige grele
* Sabline (f.) de Lozère
* Sabline (f.) des montagnes
* Sabline agglomérée
* Sabot-de-Vénus
* Sabulina tenuifolia subsp. hybrida
* Sabulina tenuifolia subsp. laxa
* Sabulina tenuifolia subsp. tenuifolia
* Sage
* Sage, Mediterranean
* Sage, Verbena
* Sage, Wood
* Sagina apetala
* Sagina procumbens
* Sagina subulata subsp. subulata
* Sagina subulé
* Sagine apétale
* Sagine couchée
* Sainfoin
* Sainfoin
* Sainfoin, (Wild)
* Salade de chouette
* Salix alba
* Salix atrocinerea
* Salix aurita
* Salix caprea
* Salix cinerea
* Salix eleagnos
* Salix fragilis
* Salix lapponum
* Salix pentandra
* Salix purpurea
* Salix repens subsp. repens
* Salix triandra
* Salix viminalis
* Sallow, Common
* Salsifie à feuilles de poireau
* Salsifie du Midi
* Salsifis douteux
* Salsify
* Salsify
* Salsify, Yellow
* Salvia aethiopis
* Salvia glutinosa
* Salvia officinalis subsp. officinalis
* Salvia pratensis
* Salvia sclarea
* Salvia verbenaca subsp. verbenaca
* Sambucus ebulus
* Sambucus nigra
* Sambucus racemosa
San * * Sandmat, Prostrate
* Sandwort, (Beaked)
* Sandwort, (Red)
* Sandwort, Cadi
* Sandwort, Clustered
* Sandwort, Diomede's
* Sandwort, Fine-leaved
* Sandwort, Fine-leaved
* Sandwort, Fine-leaved
* Sandwort, Lozerien
* Sandwort, Mossy
* Sandwort, Mountain
* Sandwort, Slender
* Sandwort, Three-veined
* Sandwort, Thyme-leaved
* Sanguisorba officinalis
* Sanicle
* Sanicle d'Europe
* Sanicula europaea
* Sapin de Douglas
* Sapin pectinée
* Saponaire à feuilles de pâquerette
* Saponaire de Montpellier
* Saponaire officionale
* Saponaria bellidifolia
* Saponaria ocymoides subsp. ocymoides
* Saponaria officinalis
Sar * * Sarrasin (le)
* Sarriette des bois
* Sarriette des montagnes
* Satureja montana
* Sauge
* Sauge à feuilles de verveine
* Sauge des bois
* Sauge des près
* Sauge d'Éthiopie
* Sauge glutineuse
* Sauge sclarée
* Saule à cinq étamines
* Saule à oreillettes
* Saule blanc
* Saule blanchatre
* Saule cendré
* Saule des Lapons
* Saule fragile
* Saule marsault
* Saule pourpre
* Saule rampant
* Saule roux
* Savoury, Winter
* Saw-wort
* Saw-wort, [Bare-stemmed]
* Saw-wort, False
Sax * * Saxifraga cebennensis
* Saxifraga fragosoi
* Saxifraga granulata
* Saxifraga longifolia
* Saxifraga paniculata
* Saxifraga prostii
* Saxifraga tridactylites
* Saxifrage à trois doigts
* Saxifrage de l'Ecluse
* Saxifrage de Prost
* Saxifrage des Causses des Cévennes
* Saxifrage des Pyrennées
* Saxifrage étiolée
* Saxifrage faux-hypne
* Saxifrage granulée
* Saxifrage of Prost
* Saxifrage of the Cévennes
* Saxifrage paniculée
* Saxifrage, Alternate-leaved Golden
* Saxifrage, French
* Saxifrage, Livelong
* Saxifrage, Meadow
* Saxifrage, Mossy
* Saxifrage, Opposite-leaved Golden
* Saxifrage, Pyrenean
* Saxifrage, Rue-leaved
* Saxifrage, Starry
Sc * * Scabieuse columbaire
* Scabieuse de Grammont
* Scabiosa columbaria
* Scabiosa triandra
* Scabious, (thrice divided)
* Scabious, Devils-bit
* Scabious, Field
* Scabious, Small
* Scabious, Whole-leaved
* Scabious, Woodland
* Scandix pecten-veneris subsp. pecten-veneris
* Scarlet Pimpernel
* Sceau de Salomon commun
* Sceau de salomon odorant
* Sceau-de-Salomon noeux
* Sceau-de-Salomon verticillé
* Schedonorus pratensis subsp. pratensis
* Scheuchzeria palustris
* Scheuchzérie des marais (f.)
* Scilla bifolia
* Scille à deux feuilles
* Scille d'automne
* Scille lis-jacinthe
* Scirpe à une écaille
* Scirpe cespiteux
* Scirpe des bois
* Scirpe épingle (m.)
* Scirpe pauciflore
* Scirpus sylvaticus
* Scléranthe à crochets
* Scléranthe annuel
* Scléranthe annuel
* Scléranthe vivace
* Scleranthus annuus subsp. annuus
* Scleranthus annuus subsp. polycarpos
* Scleranthus annuus subsp. verticillatus
* Scleranthus perennis subsp. perennis
* Scleranthus uncinatus
* Scolopendre officinale
* Scorpion Senna
* Scorpion vetch, [Dwarf]
* Scorpion vetch, [Glaucous]
* Scorpion-vetch, Shrubby
* Scorzonera humilis
* Scorzonère à fll. de fausse-trappe
* Scorzonère peu élevé
* Scorzonère pourpre
* Scorzoneroides pyrenaica
* Scrofulaire
* Scrofulaire à oreillettes
* Scrofulaire des Alpes
* Scrofulaire des chiens
* Scrofulaire des chiens
* Scrofulaire noueuse
* Scrophularia alpestris
* Scrophularia auriculata
* Scrophularia canina subsp. hoppei
* Scrophularia canina subsp. pinnatifida
* Scrophularia nodosa
* Scrophularia nodosa var. Barmias
* Scutellaria galericulata
Se * * Secale cereale
* Sedge [of Haller]
* Sedge, (shiny fruited)
* Sedge, Bladder
* Sedge, Bottle
* Sedge, Carnation
* Sedge, Common Hare
* Sedge, Common Yellow
* Sedge, Curved-beak
* Sedge, Distant
* Sedge, Downy
* Sedge, Dwarf
* Sedge, Few-flowered
* Sedge, Fingered
* Sedge, Flea
* Sedge, Glaucous
* Sedge, Greater Starry
* Sedge, Grey
* Sedge, Hairy
* Sedge, Hairy fruited
* Sedge, Large Yellow
* Sedge, Large-fruited Prickly
* Sedge, Mud
* Sedge, of Davali
* Sedge, Pale
* Sedge, Remote-spiked
* Sedge, Short-spiked
* Sedge, Slender Tufted
* Sedge, Star
* Sedge, Tawny
* Sedge, Umbrella
* Sedge, Umbrosa
* Sedge, White
* Sedge, White
* Sedge, Wood
* Sedum acre
* Sedum album
* Sedum annuum
* Sedum brevifolium
* Sedum dasyphyllum
* Sedum hirsutum
* Sedum rubens
* Sedum villosum
* Seigle
* Self-Heal, Common
* Self-Heal, Cut-leaved
* Self-Heal, Large
* Self-Heal, Spear-leafed
* Sélin à feuilles de carvi
* Selinum carvifolia
* Sempervivum arachnoideum
* Sempervivum tectorum
Sen * * Senecio cacaliaster
* Senecio doronicum
* Senecio gerardi
* Senecio inaequidens
* Senecio lagascanus
* Senecio ovatus subsp. alpestris
* Senecio ruthenensis
* Senecio sylvaticus
* Senecio viscosus
* Senecio vulgaris subsp. vulgaris
* Séneçon
* Séneçon à feuilles d'Adonis
* Séneçon à feuilles de roquette
* Séneçon à feuilles en spatule
* Séneçon de Croatie
* Séneçon de Fuchs
* Séneçon de Gérard
* Sénecon de Rodez
* Séneçon des bois
* Séneçon doronic
* Séneçon du Cap
* Séneçon Jacobée
* Séneçon of Rodez
* Séneçon visqueux
* Séquoia à feuilles d'if
* Séquoia géant
* Sequoia sempervirens
* Sequoiadendron giganteum
* Sérapias à labelle allongé
Ser * * Serapias lingua
* Sérapias petite langue
* Serapias vomeracea
* Serapias, Long-lipped
* Seringa
* Sermontain, French
* Sermountain
* Sermountain [Nestler's]
* Sermountain, Broadleaved
* Serpolet petit-chêne
* Serradella, Yellow
* Serratula tinctoria
* Serratule à tige nue
* Serratule des Teinturiers
* Service Tree, Bastard
* Service Tree, True
* Service Tree, Wild
* Sesamoides
* Sesamoides pygmaea
* Séséli des montagnes
* Séséli faux peucédan
* Seseli montanum subsp. montanum
* Seseli, [false masterwort]
* Seseli, Mountain
* Sétaire verte
* Setaria italica subsp. viridis
* Setaria verticillata
Sh * * Sheep's Sorrel
* Sheepsbit, Mountain
* Sheepsbit, Perennial
* Shepherd's Needle
* Shepherd's Purse
* Sherardia arvensis
Si * * Silène à fleurs fermées
* Silène à petites fleurs
* Silène arméria
* Silene baccifera
* Silène bifurqué
* Silène blanc, Compagnon blanc
* Silène brise-roches
* Silene conica
* Silène conique
* Silène de France
* Silene dichotoma
* Silene dioica
* Silène d'Italie
* Silène enflé
* Silene gallica
* Silene inaperta
* Silene italica subsp. italica
* Silene latifolia
* Silene nutans subsp. nutans
* Silene otites subsp. otites
* Silène penché
* Silene saxifraga
* Silene vulgaris subsp. vulgaris
* Silky-bent, Dense
* Silver Spear Grass
* Silvergrass, Chinese
* Sinapis arvensis
* Sisymbrella aspera subsp. aspera
* Sisymbrium officinale
Sk * * Skullcap
* Smearwort
* Smut grass
* Snapdragon
* Snapdragon, Blue
* Snapdragon, creeping
* Sneezewort
* Sneezewort, Pyrenean
* Snowdrop
* Snow-in-summer
So * * Soapwort
* Soapwort, Alpine
* Soapwort, Rock
* Socarillo
* Solanum dulcamara
* Solanum lycopersicum
* Solanum nigrum
* Solanum tuberosum
* Solanum villosum
* Solidage tardif
* Solidago gigantea
* Solidago virgaurea
* Solomon's-seal, Common
* Solomon's-seal, Sweet-scented
* Solomon's-seal, Whorled
* Sonchus asper subsp. asper
* Sonchus oleraceus
* Sorbier de Thuringe
* Sorbier des oiseleurs
* Sorbus aucuparia subsp. aucuparia
* Sorbus x thuringiaca
* Sorgho d'Alep
* Sorghum halepense
* Sorrel, Common
* Sorrel, Pink
* Sorrel, Sussex Yellow
* Sorrel, Wood
* Sorrel, Yellow
* Souchet (m.) robuste
* Souchet allongé
* Souchet brun
* Sow-thistle, Common
* Sow-thistle, Prickly
Sp * * Spanish Broom
* Sparganium emersum
* Sparganium neglectum
* Spargoute à cinq étamines
* Spargoute des champs
* Spargoute printannière
* Spartium junceum
* Spearwort, Lesser
* Speedwell, (Dillen's)
* Speedwell, Blue water
* Speedwell, Common
* Speedwell, Field, Buxbaum's Speedwell
* Speedwell, Fingered
* Speedwell, Germander
* Speedwell, Ivy-leaved
* Speedwell, Large
* Speedwell, Marsh
* Speedwell, Pale
* Speedwell, Prostrate
* Speedwell, Spiked
* Speedwell, Spring
* Speedwell, Thyme-leaved
* Speedwell, Wall
* Spelt
* Spergula arvensis
* Spergula morisonii
* Spergula pentandra
* Spergulaire rouge
* Spergularia rubra
Spi * * Spignel, Baldmoney
* Spindle, Wide-leaved
* Spindle-tree
* Spiranthe d'automne
* Spiranthe d'été
* Spiranthes aestivalis
* Spiranthes spiralis
* Spirée filipendule
* Spleenwort, Alternate-leaved
* Spleenwort, Black
* Spleenwort, Forked
* Spleenwort, Lanceolate
* Spleenwort, Maidenhair
* Spleenwort, Maidenhair
* Spleenwort, Maidenhair
* Spleenwort, Rock
* Spleenwort, Southern Rock
* Sporobole tenace
* Sporobolus indicus
* Spring snowflake
* Spruce, Colorado
* Spruce, Norway (Xmas tree)
Spu * * Spurge laurel
* Spurge, [Duval]
* Spurge, [of Nice]
* Spurge, Caper
* Spurge, Corn
* Spurge, Cypress
* Spurge, Dwarf
* Spurge, Dwarf
* Spurge, Irish
* Spurge, Mediterranean
* Spurge, Petty
* Spurge, Sickle
* Spurge, Spotted
* Spurge, Sun
* Spurge, Sweet
* Spurge, Wood
* Spurrey, Field
* Spurrey, Morison's
* Spurrey, Sand
* Spurrey, Wingstem
* Squill, Alpine
* Squill, Autumn
* Squill, Pyrennean
* Squinancy Wort
St * * St. John's Wort, Hairy
* St. John's Wort, Hysop-leaved
* St. John's Wort, Imperforate
* St. John's Wort, Mountain
* St. John's Wort, Perforate
* St. John's Wort, Square-stemmed
* St. John's Wort, Trailing
* St.Bernard's Lily
* St.Bernard's Lily, Small
* St.Bruno's Lily
* Stachys alpina
* Stachys recta
* Stachys sylvatica
* Staghorn
* Star-of-Behlehem, Early
* Star-of-Bethlehem
* Star-of-Bethlehem, [Erect-leaved]
* Star-of-Bethlehem, [Erect-leaved]
* Star-of-Bethlehem, Yellow
* Star-thistle, Red
* Starwort, Intermediate
* Stellaire alsine
* Stellaire des bois
* Stellaire graminée
* Stellaire holostée
* Stellaire ruderale
* Stellaria alsine
* Stellaria graminea
* Stellaria media
* Stellaria neglecta var. neglecta
* Stellaria nemorum subsp. nemorum
* Sternbergia lutea
* Stichwort, Wood
* Stinking Hellibore
* Stinkwort
* Stipa gallica
* Stitchwort, Bog
* Stitchwort, Greater
* Stitchwort, Lesser
Sto * * Stonecrop, [Pale yellow]
* Stonecrop, Annual
* Stonecrop, Hairy
* Stonecrop, Marsh
* Stonecrop, Pale
* Stonecrop, Red
* Stonecrop, Reflexed
* Stonecrop, Rock
* Stonecrop, Short-leaved
* Stonecrop, Thick-leaved
* Stonecrop, White
* Stonecrop,[Embracing leaved]
* Stonecrop,Wall-pepper
* Storksbill
* Storksbill
* Strapwort, [Riverside]
* Strawberry Tree
* Strawberry, Barren
* Strawberry, Green
* Strawberry, Wild
* Streptopus amplexifolius
* Struthiopteris spicant
Su * * Succisa pratensis
* Succise-des-prés
* Sumac amarante
* Sundew, Round-leaved
* Sunflower
* Sureau
* Sureau à grappes
* Surelle (Oxalis de bois)
* Swallow-wort
* Sweet Chestnut
* Sweet rocket
* Sweet Scabious, White Top
* Sweet vernal grass
* Sweetbriar, Hairy-leaved
* Sweet-grass, Plicate
* Swertia perennis
* Swertie pérenne
* Sycamore
* Symphyotrichum lanceolatum
* Symphytum officinale
* Symphytum tuberosum
* Syringa
* Syringa vulgaris