R. 'Orchard Road'Rhododendron Hybrid? X ?Hybridized By: Grant, Mrs. G. |
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R. 'Orchid'Azalea Hybrid? X ?Hybridized By: Pericat, A. |
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R. 'Orchid Beauty'Azalea HybridR. 'Mrs L.C. Fischer' X R. 'Maryann'Hybridized By: Reid, G.A. More information and pictures
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R. 'Orchid Bouquet'Rhododendron HybridR. 'Purple Splendour' X R. 'One Thousand Butterflies'Hybridized By: Fujioka, Frank More information and pictures
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R. 'Orchid Gem'Azalea Hybrid? X ?Hybridized By: Lovegrove, F. |
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R. 'Orchid Lace'Azalea Hybrid? X ?Hybridized By: Girard, P.E. |
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R. 'Orchid Lights'Azalea HybridR. canadense X ?Hybridized By: Pellet, H. More information and pictures
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R. 'Orchid Mist'Rhododendron HybridR. degronianum ssp yakushimanum 'Exbury Yakushimanum' X R. 'Frank Galsworthy'Hybridized By: Barlup, Jim More information and pictures
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R. 'Orchid Pink'Azalea Hybrid? X ?Hybridized By: Camellia Lodge Nursery |
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R. 'Orchidflorum Album'Azalea Hybrid? X ?Hybridized By: Camelia Grove Nursery |
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R. 'Oreaug Group'Rhododendron Cultivar group? X ?Hybridized By: Magor, E.J.P. |
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R. 'Oregon Expressions'Rhododendron Hybrid? X ?Hybridized By: Ring, T.L. |
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R. 'Oregon Sunset'Rhododendron Hybrid? X ?Hybridized By: Lem Halfdan |
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R. 'Oregonia Group'Rhododendron Cultivar group? X ?Hybridized By: Rothschild, L. de |
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R. 'Oremo'Rhododendron Hybrid? X ?Hybridized By: Parco Burcina |
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R. 'Oreocinn Group'Rhododendron Cultivar group? X ?Hybridized By: Magor, E.J.P. |
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R. oreodoxa var fargesiiSpecies
Subgenus:
Hymenanthes
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R. oreodoxa var fargesii 'Barto Rose'Rhododendron Species SelectionSelected By: James Delbert W. More information and pictures
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R. oreodoxa var oreodoxaSpecies
Subgenus:
Hymenanthes
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R. oreodoxa var oreodoxa 'Budget Farthing'Rhododendron Species Selection |
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R. oreotrephesSpecies
Subgenus:
Rhododendron
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R. oreotrephes 'Island Gem'Rhododendron Species Selection |
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R. oreotrephes 'James' White Oreotrephes'Rhododendron Species Selection |
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R. oreotrephes 'Pentland'Rhododendron Species SelectionSelected By: Cox, Peter A. More information and pictures
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R. 'Orestes Group'Rhododendron Hybrid? X ?Hybridized By: Aberconway, Lord |
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R. 'Organdie'Rhododendron Hybrid? X ?Hybridized By: Rothschild, L. de |
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R. 'Oriana'Vireya Hybrid? X ? |
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R. 'Oriana Group'Rhododendron Cultivar group? X ?Hybridized By: Aberconway, Lord |
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R. 'Oriental Queen'Azalea Hybrid? X ?Hybridized By: New Zealand |
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R. 'Oriflamme'Azalea Hybrid? X ?Hybridized By: van Geert, C. |
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R. 'Oriflamme'Azalea Hybrid? X ?Hybridized By: Morrison, B.Y. |
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R. 'Oriflamme'Rhododendron Hybrid? X ?Hybridized By: Rothschild, L. de |
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R. 'Original'Rhododendron Hybrid? X ?Hybridized By: Standish & Noble |
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R. 'Original Vagabond'Rhododendron HybridR. 'Janet Blair' X R. 'Apritan'Hybridized By: Gustafson, R.H. |
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R. 'Orine Holm'Azalea Hybrid? X ?Hybridized By: Griswold, G. |
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R. 'Orlice'Azalea Hybrid? X ?Hybridized By: Kavka, B. |
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R. 'Ormsby'Azalea Hybrid? X ?Hybridized By: Gartrell, R. D. |
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R. 'Ornatum Incarnatum'Azalea Hybrid? X ?Hybridized By: Gowen, J.R. |
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R. 'Ornatum Luteum'Azalea Hybrid? X ?Hybridized By: Gowen, J.R. |