R. praestans 'Exbury Praestans'Rhododendron Species Selection |
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R. praestans 'Sunte Rock'Rhododendron Species Selection |
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R. 'praestans x montroseanum'Rhododendron HybridR. praestans X R. montroseanumMore information and pictures 
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R. 'praestans x strigillosum'Rhododendron HybridR. praestans X R. strigillosumHybridized By: Watson, E.M. Mrs. (Elsie) |
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R. praeteritumNatural Hybrid? X ? |
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R. 'praetervisum x loranthiflorum'Vireya HybridR. praetervisum X R. loranthiflorum ssp loranthiflorum |
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R. praevernumSpecies
Subgenus:
Hymenanthes
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R. prattiiSpecies
Subgenus:
Hymenanthes
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R. prattii 'Perry Wood'Rhododendron Species Selection |
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R. 'Prawn'Rhododendron HybridR. 'Lady Bessborough' X R. 'Tortoiseshell Wonder'Hybridized By: Slocock, Walter C. More information and pictures
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R. 'Prelude'Rhododendron HybridR. wardii var wardii X R. fortunei ssp fortuneiHybridized By: Rothschild, L. de |
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R. 'Prelude Group'Rhododendron Cultivar groupR. wardii var wardii X R. fortunei ssp fortuneiHybridized By: Rothschild, L. de More information and pictures
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R. preptumSpecies
Subgenus:
Hymenanthes
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R. 'President Roosevelt'Rhododendron HybridR. 'Cunningham's White' X R. 'Blandyanum'Hybridized By: Mesman, C. More information and pictures
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R. 'President Lincoln'Rhododendron HybridR. catawbiense X ?Hybridized By: Parsons, S.B. & Sons Co. More information and pictures
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R. 'President Roosevelt'Azalea Hybrid? X ? |
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R. 'Presleyanum'Azalea Hybrid? X ?Hybridized By: Verschaffelt, A. (Alexander) |
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R. 'Presque Isle'Rhododendron HybridR. 'Everestianum' X R. 'Hindustan'Hybridized By: Leach, Dr. David G. |
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R. 'Pressii'Azalea Hybrid? X ?Hybridized By: Jacob-Makoy, L. |
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R. 'Pretender'Rhododendron Hybrid? X ?Hybridized By: Standish, J. |
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R. 'Pretty Baby'Rhododendron HybridR. 'Cornubia' X R. degronianum ssp yakushimanumMore information and pictures 
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R. 'Pretty Baby x pachysanthum'Rhododendron HybridR. 'Pretty Baby' X R. pachysanthum |
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R. 'Pretty Jessica'Rhododendron HybridR. 'Lem's Cameo' X R. 'Coker's Pink'Hybridized By: Sligh, B. |
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R. 'Pretty Woman'Rhododendron HybridR. 'Orange Marmalade' X R. 'Pink Petticoats'Hybridized By: Davis, J.A. More information and pictures
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R. 'Pride of Dorking'Azalea Hybrid? X ? |
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R. 'Pride of Lawrenceville'Azalea HybridR. 'Bunka' X R. 'Hinodegiri'Hybridized By: Harris, J.O. |
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R. 'Pride of Leonardslee'Rhododendron HybridR. fortunei ssp fortunei X R. thomsonii ssp thomsoniiHybridized By: Loder, Sir Edmund More information and pictures
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R. 'Pride of Prichard'Azalea Hybrid? X ? |
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R. 'Pride's Early Red'Rhododendron Hybrid? X ?Hybridized By: Pride, O.S. More information and pictures
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R. 'Pridenjoy'Rhododendron HybridR. 'Lem's Cameo' X R. 'Kubla Khan'Hybridized By: Newcomb,L.L. More information and pictures
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R. 'Primary Pink'Rhododendron HybridR. 'Yaku Sunrise X C.I.S x Jingle Bells' X R. 'Lem's Cameo'Hybridized By: Fujioka, Frank More information and pictures
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R. 'Primrose'Azalea Hybrid? X ? |
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R. 'Primula'Rhododendron Hybrid? X ?Hybridized By: UK, No hybridizer registered |
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R. 'Prince Abkhazi'Rhododendron HybridR. irroratum ssp irroratum X ?Hybridized By: Vaartnou, H. More information and pictures
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R. 'Prince Camille de Rohan'Azalea HybridR. maximum X ?Hybridized By: Waelbrouck More information and pictures
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R. 'Prince Henri des Pays-Bas'Azalea Hybrid? X ?Hybridized By: Verschaffelt, L More information and pictures
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R. 'Prince Leopold'Vireya Hybrid? X ? |
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R. 'Princess Abkhazi'Rhododendron HybridR. irroratum ssp irroratum X ?Hybridized By: Vaartnou, H. More information and pictures
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R. 'Princess Alexandra'Vireya HybridR. jasminiflorum ssp jasminiflorum X R. 'Princess Royal'Hybridized By: Veitch & Sons, R. |
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R. 'Princess Alice'Azalea Hybrid? X ?Hybridized By: Todman |
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R. 'Princess Alice'Azalea Hybrid? X ?Hybridized By: Berna Park Nurseries |
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R. 'Princess Alice'Rhododendron HybridR. edgeworthii X R. ciliatumHybridized By: Veitch & Sons, R. More information and pictures
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R. 'Princess Angeline'Rhododendron HybridR. 'Chevalier Felix de Sauvage' X R. 'Purple Splendour'Hybridized By: Watson, E.M. Mrs. (Elsie) More information and pictures
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