R. 'Oropa'Rhododendron Hybrid? X ?Hybridized By: Parco Burcina |
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R. 'Orrie Dille'Rhododendron Hybrid? X ?Hybridized By: Stockman, M. |
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R. orthocladum var microleucumSpecies
Subgenus:
Rhododendron
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R. orthocladum var orthocladumSpecies
Subgenus:
Rhododendron
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R. 'Ortiga Group'Rhododendron Cultivar group? X ?Hybridized By: Aberconway, Lord |
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R. 'Orton Bradley'Rhododendron Hybrid? X ?Hybridized By: Boswell, E.D. Mrs |
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R. 'Oryx'Azalea HybridR. 'cumberlandense x occidentale' X R. 'Kilauea'Hybridized By: Waterer, H. (Knaphill) More information and pictures
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R. 'Os's Oriana'Vireya Hybrid? X ? |
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R. 'Osaka'Azalea HybridR. 'Madame Petrick' X R. 'Pink Dream'Hybridized By: Van Lancker, M. More information and pictures
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R. 'Osakazuki'Azalea Hybrid? X ?Hybridized By: Japan |
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R. 'Osakazuki x Flame'Azalea HybridR. 'Osakazuki' X R. 'Flame' |
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R. 'Osakazuki x Suetsumu'Azalea HybridR. 'Osakazuki' X R. 'Suetsumu' |
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R. 'Oskar'Azalea Hybrid? X ?Hybridized By: Schulz, O. (head-gardener, Royal Porcelain Factory) |
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R. 'Osmar'Rhododendron HybridR. williamsianum X ?Hybridized By: UK, No hybridizer registered More information and pictures
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R. 'Oso'Rhododendron HybridR. 'Lem's Tangerine' X R. 'Goldsworth Yellow x decorum ssp diaprepes'Hybridized By: Newcomb,L.L. More information and pictures
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R. 'Ostbo's Copper'Rhododendron HybridR. 'Fabia Group' X R. 'Mrs W.C. Slocock'Hybridized By: Ostbo, E. More information and pictures
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R. 'Ostbo's Low Yellow'Rhododendron Hybrid? X ?Hybridized By: Ostbo, E. More information and pictures
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R. 'Ostbo's Yellow'Rhododendron Hybrid? X ? |
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R. 'Osterküken'Rhododendron Hybrid? X ?Hybridized By: Wieting, J. |
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R. 'Osterschnee'Rhododendron HybridR. 'Mardi Gras' X R. praevernumHybridized By: Hachmann, Hans More information and pictures
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R. 'Ostfriesland'Rhododendron HybridR. 'Madame de Bruin' X R. forrestii Repens GroupHybridized By: Hobbie, Dietrich G. |
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R. 'Oswald de Kerchove'Azalea Hybrid? X ?Hybridized By: Van Houtte, L. B. (Louis Benoit) |
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R. 'Oswald Schreiber'Azalea Hybrid? X ?Hybridized By: Rose, J. |
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R. 'Otava'Azalea HybridR. Amoenum X R. yedoense var poukhanenseHybridized By: Jelínek, J. More information and pictures
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R. 'Othello'Azalea Hybrid? X ?Hybridized By: Koster & Co. |
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R. 'Othello'Azalea Hybrid? X ?Hybridized By: Baumann, J. |
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R. 'Othello'Azalea Hybrid? X ?Hybridized By: Standish & Noble |
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R. 'Othello'Azalea Hybrid? X ?Hybridized By: Schulz, M. |
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R. 'Othello'Rhododendron Hybrid? X ?Hybridized By: Brandt, Lester E. |
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R. 'Othello'Rhododendron Hybrid? X ?Hybridized By: Aberconway, Lord |
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R. 'Othello'Rhododendron HybridR. maximum X ?Hybridized By: Standish & Noble |
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R. 'Otis Hyde'Rhododendron HybridR. 'Fabia' X R. 'Exbury Albatross'Hybridized By: Larson, H.L. |
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R. 'Oto-kirishima'Azalea Hybrid? X ?Hybridized By: Ito, Ihei |
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R. 'Otohime'Azalea Hybrid? X ? |
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R. 'Otome'Azalea Hybrid? X ?Hybridized By: Japan |
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R. 'Otome'Azalea HybridR. 'Izayoi' X R. 'Kyokko-nishiki'Hybridized By: Chugai Nursery Co. |
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R. 'Otome-gokara'Azalea Hybrid? X ?Hybridized By: Kyoma Yokota Nursery |
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R. 'Otome-no-mai'Azalea Hybrid? X ?Hybridized By: Japan |
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R. 'Otomeno'Azalea Hybrid? X ?Hybridized By: Greer Gardens |
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R. 'Ottawa'Rhododendron HybridR. fortunei ssp discolor X R. campylocarpum Elatum GroupHybridized By: Rothschild, L. de |
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R. 'Otterwood'Azalea Hybrid? X ?Hybridized By: Rothschild, Edmund Leopold de |
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R. 'Otto'Azalea HybridR. simsii var simsii X ?Hybridized By: Stahnke, O. More information and pictures
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R. 'Otto and Betty'Rhododendron Hybrid? X ?Hybridized By: Tolstead, W.L. |
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R. 'Otto Forster'Rhododendron Hybrid? X ?Hybridized By: Firma Seidel |
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R. 'Otto Hahn'Azalea Hybrid? X ?Hybridized By: Fleischmann, C. |
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R. 'Otto Liliental'Azalea Hybrid? X ?Hybridized By: Kersbergen, Gebr. |