R. 'Sir Isaac Brock'Rhododendron Hybrid? X ?Hybridized By: Behring, R. |
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R. 'Sir John Waterer'Rhododendron Hybrid? X ? |
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R. 'Sir Robert Menzies'Rhododendron Hybrid? X ?Hybridized By: Van de Ven K. |
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R. 'Sir Robert Peel'Rhododendron Hybrid? X ?Hybridized By: Waterer (Bagshot) More information and pictures
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R. 'Sir T. Spencer Wells'Azalea Hybrid? X ?Hybridized By: Van Houtte, L. B. (Louis Benoit) |
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R. 'Sir Thomas Acland'Rhododendron Hybrid? X ?Hybridized By: Veitch & Son, J. |
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R. 'Sir Thomas Sebright'Rhododendron Hybrid? X ?Hybridized By: Waterer, H. (Knaphill) More information and pictures
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R. 'Sirius'Rhododendron Hybrid? X ? |
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R. 'Sirunki Lake'Vireya Hybrid? X ? |
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R. 'Sister Betty'Rhododendron HybridR. 'Calstocker Group' X R. 'Gill's Crimson'Hybridized By: Weeks, C. |
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R. 'Siuslaw Pioneer'Rhododendron Hybrid? X R. macabeanumHybridized By: McCormack, A. |
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R. 'Skeeter Hill'Rhododendron HybridR. 'brachycarpum x Crest' X R. 'Stokes Bronze Wings'Hybridized By: Delp Weldon E. |
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R. 'Skerryvore Monarch'Rhododendron Hybrid? X ?Hybridized By: Dexter, C.O. |
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R. 'Skipper'Rhododendron HybridR. 'Fawn' X R. 'Indian Penny'Hybridized By: James Delbert W. More information and pictures
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R. 'Skipper Hal'Rhododendron Hybrid? X ? |
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R. 'Sklerijenn'Rhododendron HybridR. 'Double Date' X R. 'Karen Triplett'Hybridized By: Le Duigou, L. More information and pictures
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R. 'Skookum'Rhododendron HybridR. 'yakushimanum x Mars' X R. 'America'Hybridized By: Larson, H.L. More information and pictures
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R. 'Sky Dancer'Rhododendron HybridR. 'Capistrano' X R. 'Nelda Peach'Hybridized By: Barlup, Jim More information and pictures
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R. 'Sky Duke'Rhododendron Hybrid? X R. macabeanumHybridized By: Furman, F. |
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R. 'Sky Hill Pose'Azalea HybridR. 'Edna Bee' X R. 'Hahn's Red'Hybridized By: Furman, F. |
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R. 'Sky Wings'Rhododendron HybridR. 'Mrs T H Lowinsky' X R. 'Stokes Bronze Wings'Hybridized By: Smith, A.W. |
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R. 'Skyglow'Rhododendron Hybrid? X ?Hybridized By: Veitch & Sons, R. More information and pictures
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R. 'Skylar Rose Nelson'Rhododendron Hybrid? X ?Hybridized By: Kesterson, G.H. |
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R. 'Slam Dunk'Rhododendron Hybrid? X ?Hybridized By: Mehlquist, G.A.L |
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R. 'Sleepy'Rhododendron HybridR. degronianum ssp yakushimanum X R. DoncasterHybridized By: Waterer (Bagshot) More information and pictures
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R. 'Sleigh Bells'Azalea Hybrid? X ?Hybridized By: Guttormsen, W.L. |
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R. 'Sligo'Azalea Hybrid? X ?Hybridized By: Morrison, B.Y. |
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R. 'Slippery Rock'Rhododendron Hybrid? X ? |
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R. 'Sloppy Joe'Rhododendron HybridR. 'Whitney’s Orange' X R. 'Idealist Group'More information and pictures 
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R. 'Slow Waltz'Rhododendron HybridR. 'Vicki Reine' X R. 'Van Nes Sensation'Hybridized By: Stockman, M. |
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R. 'Small Gem'Rhododendron HybridR. pemakoense X R. leucaspis |
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R. 'Small Wonder'Rhododendron HybridR. 'Fanfare' X R. 'Prometheus x forrestii Repens Group'Hybridized By: Leach, Dr. David G. More information and pictures
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R. 'Smashing'Rhododendron HybridR. 'Weldy x Serendipity' X R. 'Dead Ringer'Hybridized By: Delp Weldon E. |
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R. 'Smiley's Pinkadilly'Rhododendron HybridR. oreodoxa var fargesii X R. 'Riplet Group'Hybridized By: Lem Halfdan More information and pictures
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R. 'Smirboy'Rhododendron HybridR. 'China Boy' X R. smirnowiiHybridized By: Hachmann, Hans |
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R. smirnowiiSpecies
Subgenus:
Hymenanthes
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R. smirnowii 'Dace'Rhododendron Species SelectionSelected By: Kondratovičs, Rihard |
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R. smirnowii 'Glasnost'Rhododendron Species Selection |
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R. smirnowii 'Vodka'Rhododendron Species SelectionSelected By: Rothschild, Edmund Leopold de |
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R. 'smirnowii x America'Rhododendron HybridR. smirnowii X R. 'America' |
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R. 'smirnowii x bureavii'Rhododendron HybridR. smirnowii X R. bureavii |
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R. 'smirnowii x catawbiense'Rhododendron HybridR. smirnowii X R. catawbiense |
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R. 'smirnowii x fortunei'Rhododendron HybridR. smirnowii X R. fortunei ssp fortunei |
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R. 'smirnowii x griersonianum'Rhododendron HybridR. smirnowii X R. griersonianum |
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R. 'smirnowii x griersonianum X catabiense x fortunei ssp discolor x Corona'Rhododendron HybridR. 'smirnowii x griersonianum' X R. 'catawbiense X fortunei ssp discolor x Corona' |
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R. 'smirnowii x griersonianum X catabiense x fortunei ssp discolor x Corona X griersonianum'Rhododendron HybridR. 'smirnowii x griersonianum X catabiense x fortunei ssp discolor x Corona' X R. griersonianum |
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R. 'smirnowii x Lady Bessborough Group'Rhododendron HybridR. smirnowii X R. 'Lady Bessborough Group' |
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R. 'smirnowii x Lady Bessborough Group X Hello Dolly'Rhododendron HybridR. 'smirnowii x Lady Bessborough Group' X R. 'Hello Dolly' |