| RHAMNUS |
| RHAMNUS frangula 'Aspleniifolia' |
| RHODODENDRON |
| RHODODENDRON arboreum |
| RHODODENDRON Azalea arborescens |
| RHODODENDRON Azalea bakeri |
| RHODODENDRON Azalea de Gand 'Bartholo lazzari' |
| RHODODENDRON Azalea de Gand 'Bouquet de Flore' |
| RHODODENDRON Azalea de Gand 'Cardinal' |
| RHODODENDRON Azalea de Gand 'Daviesii' |
| RHODODENDRON Azalea de Gand 'Fanny' |
| RHODODENDRON Azalea de Gand 'Generaal Trauff' |
| RHODODENDRON Azalea de Gand 'Gloria Mundi' |
| RHODODENDRON Azalea de Gand 'Guelder Rose' |
| RHODODENDRON Azalea de Gand 'Honneur de Flandre' |
| RHODODENDRON Azalea de Gand 'Marie Verschaffelt' |
| RHODODENDRON Azalea de Gand 'Nivalis Striata' |
| RHODODENDRON Azalea de Gand 'Oscar I' |
| RHODODENDRON Azalea de Gand Rustica 'Ariadne' |
| RHODODENDRON Azalea de Gand Rustica 'Hora' |
| RHODODENDRON Azalea de Gand Rustica 'Mecene' |
| RHODODENDRON Azalea de Gand Rustica 'Milton' |
| RHODODENDRON Azalea de Gand Rustica 'Phidias' |
| RHODODENDRON Azalea de Gand Rustica 'Virgile' |
| RHODODENDRON Azalea japonica 'Adonis' |
| RHODODENDRON Azalea japonica 'Amoena' (mauve) |
| RHODODENDRON Azalea japonica 'Anne Franck' |
| RHODODENDRON Azalea japonica 'Blaue Donau' |
| RHODODENDRON Azalea japonica 'Johanna' |
| RHODODENDRON Azalea K-H 'Berry rose' (rose) |
| RHODODENDRON Azalea K-H 'Cecile' (saumon mac. jaune) |
| RHODODENDRON Azalea K-H 'Georges Reynolds' (jaune) |
| RHODODENDRON Azalea K-H 'Golden Eye' (rouge mac. jaune) |
| RHODODENDRON Azalea K-H 'Kondyke (jaune-orange) |
| RHODODENDRON Azalea K-H 'Parkfeuer' (orange-rouge) |
| RHODODENDRON Azalea K-H 'Rose Fire' (rose) |
| RHODODENDRON Azalea K-H 'Royal lodge' (rouge vif) |
| RHODODENDRON Azalea K-H 'Silver Slipper' (crème mac. jaune) |
| RHODODENDRON Azalea K-H 'Snowbird' (blanc) |
| RHODODENDRON Azalea K-H 'Whitethroat' (blanc double) |
| RHODODENDRON Azalea occidentalis 'Exquisita' (rose tache orange) |
| RHODODENDRON Azalea pontica hybride 'Geel' |
| RHODODENDRON Azalea Univ. Minnesota 'Mandarine light' |
| RHODODENDRON Azalea Univ. Minnesota 'Orchid light' |
| RHODODENDRON Azalea viscosa 'Carat ' (orange-rouge) |
| RHODODENDRON Azalea viscosa 'Diorama' (rouge) |
| RHODODENDRON Azalea viscosa 'Jolie Madame' (rose) |
| RHODODENDRON Azaleodendron (jaune tache rose) |
| RHODODENDRON calendulaceum (orange) |
| RHODODENDRON dauricum x mucronulatum |
| RHODODENDRON impeditum |
| RHODODENDRON keiskei 'procumbens' |
| RHODODENDRON kelecticum |
| RHODODENDRON luteum (= 'Azalea pontica') |
| RHODODENDRON makinoi |
| RHODODENDRON makinoi 'Fuju kaku no matsu' |
| RHODODENDRON praecox |
| RHODODENDRON racemosum |
| RHODODENDRON rufum |
| RHODODENDRON russatum 'Gletschernacht' |
| RHODODENDRON x 'Barmstedt' |
| RHODODENDRON x 'Brasilia' |
| RHODODENDRON x 'Britannia' |
| RHODODENDRON x 'Canary' (jaune pâle) |
| RHODODENDRON x ''Doncaster' |
| RHODODENDRON x 'Glesternacht' |
| RHODODENDRON x 'Hydon Dawn' |
| RHODODENDRON x 'Isabel Pierce' |
| RHODODENDRON x 'J-M de Montagues' (rouge vif) |
| RHODODENDRON x 'Marie Forte' |
| RHODODENDRON x 'Mrs W. Watson' |
| RHODODENDRON x 'Picotee' |
| RHODODENDRON x 'Rocket' |
| RHODODENDRON x 'Souvenir of Anthony Waterer' |
| RHODODENDRON x 'Taurus' |
| RHODODENDRON x 'Virginia Richards' |
| RHODODENDRON x 'Viscy' |
| RHODODENDRON yakushimanum 'Percy Wiseman' |
| RHODODENDRON yakushimanum 'Pink Cherub' |
| RHODODENDRON yakushimanum 'Silberwolke' |
| RHODODENDRON yakushimanum 'Vintage Rose' |
| RHUS |
| RHUS glabra 'Laciniata' |
| RIBES |
| RIBES sanguineum 'King Edward VII' |
| ROBINIA |
| ROBINIA ambigua |
| ROBINIA hispida |
| ROBINIA pseudoacacia 'Frisia' |
| ROBINIA pseudoacacia 'Tortuosa' |
| ROBINIA pseudoacacia 'Umbraculifera' |
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