Rhododendron Index

R. occidentale 'Miniskirts'

Deciduous Azalea Species Selection

Selected By: Smith, B.M. & Mossman, F.D.

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R. occidentale 'Ocean Gold'

Deciduous Azalea Species Selection

Selected By: Frisbie, L.F.

R. occidentale 'Ocean Mist'

Deciduous Azalea Species Selection

Selected By: Frisbie, L.F.

R. occidentale 'Pistil Packin' Mama'

Deciduous Azalea Species Selection

Selected By: Slonecker, H.J.

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R. occidentale 'Pistil Pete'

Deciduous Azalea Species Selection

Selected By: Slonecker, H.J.

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R. occidentale 'Rogue River Bell'

Deciduous Azalea Species Selection

Selected By: Frisbie, L.F.

R. occidentale 'Stagecoach Cream'

Deciduous Azalea Species Selection

Selected By: Smith, B.M. & Mossman, F.D.

R. occidentale 'Stagecoach Frills'

Deciduous Azalea Species Selection

Selected By: Smith, B.M. & Mossman, F.D.

R. occidentale 'Tatum's Deep Pink'

Deciduous Azalea Species Selection

Selected By: Tatum, T.

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R. occidentale 'Tatum's Yellow Standard'

Deciduous Azalea Species Selection

Selected By: Tatum, T.

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R. 'occidentale x cumberlandense'

Deciduous Azalea Hybrid

R. occidentale x R. cumberlandense

R. 'Oceanlake'

Rhododendron Hybrid

R. 'Sapphire' x R. 'Blue Diamond'

Hybridized By: Wright, A.O.

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R. 'Ochoco'

Deciduous Azalea Hybrid

R. 'Hugh Wormald' x R. 'Marion Merriman'

Hybridized By: Slonecker, H.J.

R. ochraceum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Maculifera

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R. 'Ochroleucum'

Rhododendron Hybrid

R. caucasicum x ?

Hybridized By: Veitch & Sons, R.

R. 'Ochroleucum'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Kinghorn, F.R.

R. 'Ochroleucum'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Gowen, J.R.

R. 'Ochroleucum'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Waterer, H. (Knaphill)

R. 'Ochroleucum'

Azaleodendron Hybrid

R. ponticum x R. molle ssp molle

R. 'Octave de Schryver'

Rhododendron Hybrid

? x ?

Hybridized By: Vervaene, J.

R. 'Octavia Group'

Rhododendron Cultivar group

R. 'Akbar Group' x R. griersonianum

Hybridized By: Rothschild, L. de

R. 'October Pink'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Australia

R. 'Octopus Group'

Rhododendron Cultivar group

R. dichroanthum ssp dichroanthum x R. kyawii

Hybridized By: Rothschild, L. de

R. 'Oculatum'

Rhododendron Hybrid

? x ?

Hybridized By: Waterer (Bagshot)

R. 'Oculatum Nigrum'

Rhododendron Hybrid

? x ?

Hybridized By: Waterer (Bagshot)

R. 'Oculissimum'

Rhododendron Hybrid

? x ?

Hybridized By: Waterer (Bagshot)

R. 'Odalisk'

Rhododendron Hybrid

R. 'Essex Scarlet' x R. fortunei ssp fortunei

Hybridized By: Shapiro, B. & M.

R. 'Odd Ball'

Rhododendron Hybrid

R. 'China Group' x R. 'Goldbug'

Hybridized By: Elliott, W.

R. 'Odee Wright'

Rhododendron Hybrid

R. 'Idealist Group' x R. 'Mrs Betty Robertson'

Hybridized By: Wright, A.O.

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R. 'Odee Wright x Crest'

Rhododendron Hybrid

R. 'Odee Wright' x R. 'Crest'

R. 'Odessa'

Rhododendron Hybrid

R. 'Fabia Group' x R. smirnowii

Hybridized By: Nagel, W. (Walter)

R. 'Odessa x Spätlese'

Rhododendron Hybrid

R. 'Odessa' x R. 'Spätlese'

R. 'Odette'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Croux & Fils

R. 'Odilia'

Evergreen Azalea Hybrid

R. 'Aladdin' x R. 'Amoenum'

Hybridized By: Boskoop

R. 'Odin'

Evergreen Azalea Hybrid

R. molle ssp molle x R. molle ssp japonicum

Hybridized By: Wezelenburg & Son

R. 'Odin'

Evergreen Azalea Hybrid

? x ?

R. 'Odoratum'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Loddiges, C. & Sons

R. 'Odoratum'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Loddiges, C. & Sons

R. 'Odoratum'

Azaleodendron Hybrid

R. ponticum x R. periclymenoides

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R. 'Odoratum Albicans'

Azalea Hybrid

? x ?

Hybridized By: Waterer (Bagshot)

R. 'Odoratum Pallidum'

Azalea Hybrid

? x ?

Hybridized By: Fraser

R. 'Oedipus Group'

Rhododendron Cultivar group

R. 'Eros Group' x R. 'Jacquetta Group'

Hybridized By: Aberconway, Lord

R. 'Oeillet Parfait'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Van Houtte, L. B. (Louis Benoit)

R. 'Oekonomierat Stoll'

Rhododendron Hybrid

R. edgeworthii x R. 'Gibsonii'

Hybridized By: Zahradnik

R. 'Oester'

Evergreen Azalea Hybrid

R. Noordtianum x R. kaempferi

Hybridized By: Arends,

R. 'OF-1'

Deciduous Azalea Hybrid

R. 'K-38' x R. austrinum

Hybridized By: Aromi, E.J

R. 'Off-shoot'

Rhododendron Hybrid

R. 'Holden' x R. 'Mary Garrison'

Hybridized By: Rhein, W.L.

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R. 'Off-shoot X Phipps Yellow x Viennese Waltz'

Rhododendron Hybrid

R. 'Off-shoot' x R. 'Phipps Yellow x Viennese Waltz'

Hybridized By: Woodard, G. (George) (superintendent Phipps Estate)

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R. 'Off-shoot x Lofthouse's Legacy'

Rhododendron Hybrid

R. 'Off-shoot' x R. 'Lofthouse's Legacy'

Hybridized By: Woodard, G. (George) (superintendent Phipps Estate)

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R. 'Offwell'

Evergreen Azalea Hybrid

R. eriocarpum 'Gumpo' x R. macrosepalum

Hybridized By: Bawden, H.E.