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R. 'Moonstone Yellow'Rhododendron HybridR. campylocarpum ssp campylocarpum X R. williamsianumHybridized By: Williams, John Charles. Caerhays, Cornwall, England, 1933 More information and pictures |
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R. 'Oldenburg Group'Rhododendron Cultivar groupR. fortunei ssp discolor X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1943 |
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R. 'Wega Group'Rhododendron Cultivar groupR. fortunei ssp fortunei 'Sir Charles Butler' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 |
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R. 'Olympic Lady Group'Rhododendron Cultivar groupR. 'Loderi King George' X R. williamsianumHybridized By: Ostbo, E.. Bellevue, Washington, USA, 1954 More information and pictures |
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R. 'Ivory Bells'Rhododendron HybridR. chlorops X R. williamsianumHybridized By: Lancaster, Ben, F.. Lackamas Gardens, Camas, Washington, USA, 1966 |
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R. 'Brocade'Rhododendron HybridR. 'Vervaeneanum' X R. williamsianumHybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1934 More information and pictures |
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R. 'Bow Bells Group'Rhododendron Cultivar groupR. 'Corona' X R. williamsianumHybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1934 More information and pictures |
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R. 'Varna Group'Rhododendron Cultivar groupR. 'Caman Group' X R. williamsianumHybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1935 |
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R. 'Tibet'Rhododendron HybridR. 'Bismarck' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1966 More information and pictures |
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R. 'Vulcan's Bells'Rhododendron HybridR. 'Vulcan's Flame' X R. williamsianumHybridized By: Lancaster, Ben, F.. Lackamas Gardens, Camas, Washington, USA, 1965 More information and pictures |
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R. 'Oudijk's Sensation'Rhododendron HybridR. 'Essex Scarlet' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany More information and pictures |
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R. 'Doctor H.C. Karl Förster'Rhododendron HybridR. 'Linswegeanum Group' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1952 More information and pictures |
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R. 'Jackwill'Rhododendron HybridR. 'Jacksonii' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 More information and pictures |
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R. 'Bad Zwischenahn'Rhododendron Hybrid? X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1968 |
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R. 'Brocade Group'Rhododendron Cultivar groupR. 'Vervaeneanum' X R. williamsianumHybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1934 More information and pictures |
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R. 'Pallidum Group'Rhododendron Cultivar groupR. griffithianum X R. williamsianumHybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1926 |
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R. 'Lissabon'Rhododendron HybridR. 'Nova Zembla' X R. williamsianumHybridized By: von Martin, V.. Rothenburg/Oberlausitz, Germany More information and pictures |
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R. 'Sea-Tac'Rhododendron HybridR. 'Moser's Maroon' X R. williamsianumHybridized By: Larson, H.L.. Tacoma, Washington, USA, 1958 More information and pictures |
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R. 'Rose Point'Rhododendron HybridR. 'Dido Group' X R. williamsianumHybridized By: Lem Halfdan. Seattle, Washington, USA, 1965 More information and pictures |
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R. 'Germania'Rhododendron HybridR. 'Antoon van Welie' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1956 More information and pictures |
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R. 'Maizauber'Rhododendron HybridR. traillianum var traillianum X R. williamsianumHybridized By: Robeneck, H.. Westerstede, Germany, 1950 |
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R. 'Libelle'Rhododendron HybridR. 'Faggetter's Favourite' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 |
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R. 'Hultschin'Rhododendron HybridR. insigne X R. williamsianumHybridized By: Robeneck, H.. Westerstede, Germany, 1952 More information and pictures |
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R. 'Gartendirektor Rieger'Rhododendron HybridR. 'Adriaan Koster' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1947 More information and pictures |
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R. 'Humming Bird Group'Rhododendron Cultivar groupR. haematodes ssp haematodes X R. williamsianumHybridized By: Williams, John Charles. Caerhays, Cornwall, England, 1933 More information and pictures |
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R. 'Gartendirektor Glocker'Rhododendron HybridR. 'Doncaster' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1952 More information and pictures |
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R. 'Robinette'Rhododendron HybridR. forrestii Repens Group X R. williamsianumHybridized By: Aasland Nursery, 1990 More information and pictures |
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R. 'Vinewood'Rhododendron HybridR. 'Sham's Ruby' X R. williamsianumHybridized By: Forster, R.R., 1964 More information and pictures |
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R. 'Adriaan Koster x williamsianum'Rhododendron HybridR. 'Adriaan Koster' X R. williamsianumHybridized By: No hybridiser registered |
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R. 'Stockholm'Rhododendron Hybrid? X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 |
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R. 'Bow Bells'Rhododendron HybridR. 'Corona' X R. williamsianumHybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1934 More information and pictures |
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R. 'Bremen'Rhododendron Hybrid? X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 More information and pictures |
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R. 'E.J.P.Magor'Rhododendron HybridR. 'Campdis Group' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1942 |
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R. 'Mystic'Rhododendron HybridR. 'Barclayi Group' X R. williamsianumHybridized By: Harrison, E.G.W.W.. Bodmin, Cornwall, England, 1950 More information and pictures |
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R. 'Lady April'Rhododendron HybridR. 'Dido Group' X R. williamsianumHybridized By: Childers, A.A., 1958 |
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R. 'April Glow'Rhododendron HybridR. 'Wilgen's Ruby' X R. williamsianumHybridized By: van Wilgen, 1968 More information and pictures |
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R. 'Minas Grand Pré'Rhododendron HybridR. catawbiense X R. williamsianumHybridized By: Swain, G.S.. Researh Station, Kentville, Nova Scotia, Canada, 1961 More information and pictures |
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R. 'Moonstone Pink'Rhododendron HybridR. campylocarpum ssp campylocarpum X R. williamsianumHybridized By: Williams, John Charles. Caerhays, Cornwall, England, 1933 |
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R. 'Eidam x williamsianum'Rhododendron HybridR. 'Eidam' X R. williamsianumHybridized By: No hybridiser registered |
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R. 'Compacta'Rhododendron HybridR. 'Faggetter's Favourite' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany |
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R. 'Elizabeth Lockhart'Rhododendron HybridR. haematodes ssp haematodes X R. williamsianumHybridized By: Lockhart, R.D.. Aberdeen, Scotland, 1964 More information and pictures |
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R. 'Hachmann's Griselda'Rhododendron HybridR. 'Memoir' X R. williamsianumHybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1986 |
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R. 'Starlet'Rhododendron HybridR. 'Diva Group' X R. williamsianumHybridized By: Lem Halfdan. Seattle, Washington, USA, 1959 More information and pictures |
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R. 'Royal Pink'Rhododendron HybridR. 'Homer I' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 More information and pictures |
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R. 'Dortmund'Rhododendron Hybrid? X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1953 |
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R. 'Boccia'Rhododendron HybridR. 'Catawbiense Compactum' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 More information and pictures |
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R. 'Carlene'Rhododendron HybridR. 'Lem's Goal' X R. williamsianumHybridized By: Lem Halfdan. Seattle, Washington, USA, 1950 More information and pictures |
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R. 'Merkur'Rhododendron HybridR. 'Louis Pasteur' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1948 |
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R. 'Pipaluk'Rhododendron HybridR. 'Doctor Stocker' X R. williamsianumHybridized By: Harrison, E.G.W.W.. Bodmin, Cornwall, England, 1968 |
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R. 'Hachmann's Kontiki'Rhododendron HybridR. 'Ovation' X R. williamsianumHybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1988 |
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R. 'Lerigau'Rhododendron HybridR. 'Duke of York' X R. williamsianumHybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany, 1945 |
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