R. 'Ursula'Azalea HybridR. 'Illusion' X R. 'Gaiety'Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA, 1947 |
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R. 'Ursula Siems'Rhododendron HybridR. 'Earl of Athlone' X ?Hybridized By: Unknown |
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R. 'Ursula Siems Group'Rhododendron Cultivar group? X ?Hybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany |
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R. 'Uta-maru'Azalea Hybrid? X ?Hybridized By: Nuccio's Nurseries | Altadena, California | USA, 1984 |
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R. 'Ute Sye'Rhododendron Hybrid? X ?Hybridized By: Reich, W., 2001 |
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R. 'UU-1'Azalea Hybrid? X ?Hybridized By: Aromi, E.J | Mobile, Alabama | USA |
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R. uvariifolium var griseumSpecies
Subgenus:
Hymenanthes
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R. uvariifolium var uvariifoliumSpecies
Subgenus:
Hymenanthes
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R. uvariifolium var uvariifolium 'Reginald Childs'Rhododendron Species SelectionSelected By: Unknown
Subgenus:
Hymenanthes
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R. uvariifolium var uvariifolium 'Yangtze Bend'Rhododendron Species SelectionSelected By: Royal Botanical Garden Edinburgh, 1965
Subgenus:
Hymenanthes
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R. uwaenseSpecies
Subgenus:
Azaleastrum
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