R
ALBERI ED ARBUSTI
ERBACEE PERENNI
Ranunculus asiaticus
Rapanea laetevirens
Rapanea melanophloeos
Raphia farinifera
Rauvolfia caffra
Ravenala madagascariensis
Ravenea rivularis
Retama monosperma
Retanilla ephedra
Rhamnus alaternus
Rhamnus alaternus 'Argenteovariegatus'
Rhamnus catharticus
Rhamnus frangula 'Fastigiata'
Rhamnus taquetii
Rhaphia australis
Rhaphiolepis delacourii
Rhaphiolepis delacourii 'Pink Cloud'
Rhaphiolepis indica 'Pink Cloud'
Rhaphiolepis umbellata
Rhaphiolepis umbellata 'Minor'
Rhaphiolepis umbellata var. ovata
Rhaphiolepsis x delacourii 'Spring Time'
Rhaphithamnus spinosus
Rhapidophyllum hystrix
Rhapis excelsa
Rhapis humilis
Rheum palmatum 'Bowler Crimson'
Rhodochiton atrosanguineum
Rhododendron catawbiense 'Grandiflora'
Rhododendron hybridos
Rhododendron leuteum
Rhododendron mollis
Rhodotypos scandens
Rhopaloblaste ceramica
Rhopalostylis baueri
Rhopalostylis sapida
Rhus aromatica
Rhus glabra
Rhus glabra
Rhus glabra 'Laciniata'
Rhus gueinzii
Rhus javanica var. roxburghii
Rhus lancea
Rhus leptodictya
Rhus typhina
Rhus typhina 'Dissecta'
Ribes alpinum
Ribes alpinum 'Schmidt'
Ribes aureum = Ribes odoratum
Ribes gayanum
Ribes glandulosum
Ribes 'Josta'
Ribes laurifolium
Ribes magellanicum
Ribes nigrum
Ribes nigrum 'Ojebyn'
Ribes nigrum 'Roodneus'
Ribes nigrum 'Titania'
Ribes nigrum 'Welington XXX'
Ribes odoratum
Ribes rubrum 'Blanka'
Ribes rubrum 'Jonkheer van Tets'
Ribes rubrum 'Red Lake'
Ribes rubrum 'Rovada'
Ribes rubrum 'Witte Hollander'
Ribes rubrum 'Witte Parel'
Ribes sanguineum
Ribes sanguineum 'Atrorubens'
Ribes sanguineum 'Atrorubens Select'
Ribes sanguineum 'King Edward VII' = Ribes sanguineum 'Pulborough Scarlet'
Ribes sanguineum 'Pink Rain'
Ribes sanguineum 'Plenum'
Ribes sanguineum 'Pulborough Scarlet'
Ribes sanguineum 'Pulborough Scarlet Variega'
Ribes sanguineum 'Splendens'
Ribes sanguineum 'Tydemans White'
Ribes sanguineum 'White Icicle'
Ribes speciosum
Ribes speciosum
Ribes uva-crispa
Ribes uva-crispa
Ribes uva-crispa 'Goudbal'
Ribes uva-crispa 'HINNONMAEKI GROEN'
Ribes uva-crispa 'HINNONMAEKI GUL'
Ribes uva-crispa 'HINNONMAEKI ROED'
Ribes uva-crispa 'Invicta'
Ribes uva-crispa 'Whitesmith'
Ribes viburnifolium
Ricinus communis
Robinia 'Casque Rouge'
Robinia elliottii
Robinia hillieri = Robinia slavinii 'Hillieri'
Robinia hispida
Robinia margaretta 'Casque Rouge'
Robinia pseudo-acacia 'Bessoniana'
Robinia pseudoacacia 'Casque Rouge'
Robinia pseudo-acacia 'Coluteoides'
Robinia pseudo-acacia 'Frisia'
Robinia pseudo-acacia 'Lace Lady'
Robinia pseudo-acacia 'Myrtifolia'
Robinia pseudo-acacia 'Pyramidalis'
Robinia pseudo-acacia 'Semperflorens'
Robinia pseudo-acacia 'Tortuosa'
Robinia pseudo-acacia 'Umbraculifera'
Robinia pseudo-acacia 'Unifoliola'
Robinia slavinii 'Hillieri'
Robinia 'Twisty Baby'
Robinia viscosa
Romneya coulteri
Rosa 'Aspirine'
Rosa 'Austriana'
Rosa banksiae
Rosa 'Canicula' o 'Sonnenchirm'
Rosa 'Caramba'
Rosa floribunda 'The Fairy'
Rosa 'Mirato'
Rosa moschata
Rosa rugosa
Rosa sericea subsp. omeiensis pteracantha
Rosa x odorata 'viridiflora'
Rosmarinus officinalis
Rosmarinus officinalis var. prostratus
Rothmannia capensis
Rothmannia globosa
Rothmannia manganjae
Roystonea borinquena
Roystonea oleracea
Roystonea regia
Rubus 'Betty Ashburner'
Rubus 'Black Satin'
Rubus 'Boysen'
Rubus 'Chester Thornless'
Rubus cockburnianus
Rubus flagelliflorus
Rubus fruticosus
Rubus henryi
Rubus 'Himalaya'
Rubus 'Hull Thornless'
Rubus ichangensis
Rubus idaeus
Rubus idaeus 'Autumn Bliss'
Rubus idaeus 'Fallgold'
Rubus idaeus 'Glen Cova'
Rubus idaeus 'Golden Queen'
Rubus idaeus 'Heritage'
Rubus idaeus 'Malling Delight'
Rubus idaeus 'Malling Promise'
Rubus idaeus 'Ottawa'
Rubus idaeus 'Schoenemann'
Rubus idaeus 'Zeva Herbsternte'
Rubus illecebrosus
Rubus irenaeus
Rubus 'Kenneth Ashburner'
Rubus lineatus
Rubus 'Loch Ness'
Rubus loganobaccus 'Tayberry'
Rubus loganobaccus 'Thornless Logan'
Rubus odoratus
Rubus peltatus
Rubus phoenicolasius
Rubus spectabilis
Rubus spectabilis 'Olympic Double'
Rubus thibetanus 'Silver Fern'
Rubus 'Thornfree'
Rubus 'Thornless Evergreen'
Rubus tricolor
Rubus tridel 'Benenden'
Rubus ulmifolius 'Bellidiflorus'
Rudbeckia fulgida
Rumex linaria
Ruprechtia salicifolia
Ruscus aculeatus
Ruscus aculeatus var. angustifolius
Ruscus hypoglossum
Ranunculus aconitifolius
Ranunculus aconitifolius 'Pleniflorus'
Ranunculus acris 'Multiplex'
Ranunculus acris 'Sulphureus'
Raoulia australis
Rheum palmatum tanguticum
Rodgersia aesculifolia
Rodgersia henrici
Rodgersia pinnata
Rodgersia podophylla
Rodgersia sambucifolia
Rosmarinus officinalis
Rosmarinus officinalis 'Miss Jessop's Upright
Roy E. Coombs : Violets
Rudbeckia fulgida 'Goldsturm'
Rudbeckia fulgida var. deamii
Rudbeckia fulgida var. speciosa
Rudbeckia laciniata 'Golden Glow'
Rudbeckia laciniata 'Goldquelle'
Rudbeckia maxima
Rudbeckia nitida 'Herbstsonne'
Rudbeckia subtomentosa
Rumex acetosa
Ruta graveolens
Ruta graveolens 'Jackman's Blue'
