Index

R. 'Ouchi-jishi'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1984

R. 'Ouchiyama'

Azalea Hybrid

? X ?

Hybridized By: Japan | no hybridiser registration, 1938

R. 'Oudijk's Favorite'

Rhododendron Hybrid

X R. augustinii ssp augustinii

Hybridized By: Unknown

R. 'Oudijk's Sensation'

Rhododendron Hybrid

R. 'Essex Scarlet' X R. williamsianum

Hybridized By: Hobbie, Dietrich G.. Westerstede/Linswege, Germany

R. 'Oudijk's Sensation x Marinus Koster'

Rhododendron Hybrid

R. 'Oudijk's Sensation' X R. 'Marinus Koster'

Hybridized By: No hybridiser registered

R. 'Ouida'

Rhododendron Hybrid

R. 'Astarte' X R. griersonianum

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1930

R. 'Ouida Group'

Rhododendron Cultivar group

? X ?

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1930

R. 'Our Choice'

Rhododendron Hybrid

? X ?

Hybridized By: Knippenberg, Mrs. J. F., 1980

R. 'Our First'

Rhododendron Hybrid

R. ponticum X ?

Hybridized By: Unknown

R. 'Our Friend'

Rhododendron Hybrid

? X ?

Hybridized By: Schram, B., 1998

R. 'Our Gem'

Rhododendron Hybrid

? X ?

Hybridized By: Begg, L.

R. 'Our Kate'

Rhododendron Hybrid

? X ?

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 1963

R. 'Our Kate Group'

Rhododendron Hybrid

? X ?

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK

R. 'Our Kate Marise'

Rhododendron Hybrid

R. macabeanum X R. calophytum var calophytum

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 2008

R. 'Ouro Puro'

Rhododendron Hybrid

? X ?

Hybridized By: Brandt, Lester E.. Tacoma, Washington, USA

R. 'Outlook'

Rhododendron Hybrid

? X ?

Hybridized By: Haag, C.R. & V. (Velma). Brevard, NC, USA

R. 'Ovation'

Rhododendron Hybrid

R. 'Mars' X R. haematodes ssp haematodes

Hybridized By: Nagel, W. (Walter). Bretten, Baden, Germany, 1968

R. 'Ovation'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. ovatum

Species

Subgenus: Azaleastrum
Section: Azaleastrum

R. 'Over the Rainbow'

Azalea Hybrid

? X ?

Hybridized By: Carlson's Gardens | (Bob & Janice Carlson), South Salem, New York | USA, 1987

R. 'Overture'

Azalea Hybrid

? X ?

Hybridized By: Aromi, E.J | Mobile, Alabama | USA

R. 'Ovid'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1851

R. 'Owen Thomas'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK

R. 'Oxlip Group'

Rhododendron Cultivar group

? X ?

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK

R. oxycoccoides

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Oxydol'

Azalea Hybrid

? X ?

Hybridized By: Exbury | The Rothschild Estate, Hampshire | England, 1947

R. 'Oz'

Rhododendron Hybrid

R. 'Catawbiense Album' X R. 'Fabia Group'

Hybridized By: Lem Halfdan. Seattle, Washington, USA, 1970