Rhododendron Index

R. 'Ra'

Vireya Hybrid

R. 'laetum x zoelleri' x R. 'Os's Oriana'

Hybridized By: Blumhardt, O. S.

R. 'Rabatz'

Rhododendron Hybrid

R. 'Double Date' x R. 'Erato'

Hybridized By: Hachmann, Hans

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R. 'Raby'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Pratt, M.C.

R. 'Racearound'

Rhododendron Hybrid

R. racemosum x ?

Hybridized By: Cross J.E.

R. racemosum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Scabrifolia

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R. racemosum 'Cox Apricot Racemosum'

Rhododendron Species Selection

R. racemosum 'Forrest's Dwarf'

Rhododendron Species Selection

R. racemosum 'Glendoick'

Rhododendron Species Selection

R. 'racemosum x keiskei'

Rhododendron Hybrid

R. racemosum x R. keiskei

R. racemosum 'Puyallup'

Rhododendron Species Selection

R. racemosum 'Pyallup'

Rhododendron Species Selection

R. racemosum 'Rock Rose'

Rhododendron Species Selection

Selected By: Stevenson, J.B.

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R. racemosum 'White Lace'

Rhododendron Species Selection

R. 'Rachel'

Rhododendron Hybrid

? x ?

Hybridized By: Noble, C.

R. 'Rachel'

Evergreen Azalea Hybrid

? x ?

Hybridized By: van Geert, C.

R. 'Rachel'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Vervaene, D.

R. 'Rachel Banda'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Mossholder, R

R. 'Rachel Biggs'

Azaleodendron Hybrid

R. minus Carolinianum Group x R. kaempferi

R. 'Rachel Cunningham'

Evergreen Azalea Hybrid

? x R. 'Pluto'

Hybridized By: Morrison, B.Y.

R. 'Rachel Dacre'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Rothschild, Edmund Leopold de

R. 'Rachel von Varenhagen'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Schulz, O. (head-gardener, Royal Porcelain Factory)

R. 'Racil Group'

Rhododendron Cultivar group

R. racemosum x R. ciliatum

Hybridized By: The Netherlands, hybridizer not registered

R. 'Racilina'

Rhododendron Hybrid

R. racemosum x ?

Hybridized By: USA

R. 'Racine'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Vuylsteke, C.

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R. 'Racoon'

Evergreen Azalea Hybrid

R. 'Squirrel' x R. 'Chippewa'

Hybridized By: Cox, Peter A.

R. 'Racy'

Rhododendron Hybrid

R. 'Pink Cameo' x R. 'Pink Cameo'

Hybridized By: Delp Weldon E.

R. 'Rad'

Rhododendron Hybrid

R. 'Lem's Tangerine' x R. 'Fabia Group x (Dido Gorup x Lem's Goal) X Crest'

Hybridized By: Newcomb,L.L.

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R. radendum

Species

Subgenus: Rhododendron
Section: Pogonanthum

R. 'Radhan Baby'

Rhododendron Hybrid

? x ?

Hybridized By: Reich, W.

R. 'Radiance'

Evergreen Azalea Hybrid

R. 'Ivory' x R. 'Shinnyo-no-tsuki'

Hybridized By: Morrison, B.Y.

R. 'Radiance Group'

Rhododendron Cultivar group

R. griersonianum x R. 'Vanessa Group'

Hybridized By: Aberconway, Lord

R. 'Radiancy'

Deciduous Azalea Hybrid

? x ?

R. radians var minahasae

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. radians var pubitubum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. radians var radians

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

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R. 'Radiant'

Rhododendron Hybrid

? x ?

Hybridized By: Hall, S.

R. 'Radiant'

Deciduous Azalea Hybrid

R. molle ssp molle x R. molle ssp japonicum

Hybridized By: Kromhout & Co

R. 'Radiant Beauty'

Rhododendron Hybrid

R. 'Coronation Day' x R. 'Ruby Bowman'

Hybridized By: O'Rourke, H.

R. 'Radiant Frills'

Rhododendron Hybrid

R. 'Marquis of Waterford' x R. 'One Thousand Butterflies'

Hybridized By: Gustafson, R.H.

R. 'Radiant Heat'

Rhododendron Hybrid

R. 'Oh My!' x R. 'Little Gem'

Hybridized By: Delp Weldon E.

R. 'Radiant Knight'

Deciduous Azalea Hybrid

R. 'Hotspur Group' x R. 'Brazil'

Hybridized By: Waterer (Bagshot)

R. 'Radiant Morn'

Rhododendron Hybrid

R. 'Fabia Group' x R. 'Sunrise Group'

Hybridized By: Aberconway, Lord

R. 'Radiant Morn Group'

Rhododendron Hybrid

R. 'Fabia Group' x R. 'Sunrise Group'

Hybridized By: Aberconway, Lord

R. 'Radiant Red'

Deciduous Azalea Hybrid

R. 'ON-3' x R. 'Red King'

Hybridized By: Aromi, E.J

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R. 'Radiant Star'

Rhododendron Hybrid

R. 'C.P. Raffill Group' x R. fortunei ssp fortunei

Hybridized By: Hardgrove, D.L.

R. 'Radiatum'

Deciduous Azalea Hybrid

? x ?

R. 'Radicans'

Deciduous Azalea Hybrid

? x ?

Hybridized By: van Geert, J.

R. 'Radistrotum'

Rhododendron Hybrid

R. calostrotum ssp keleticum Radicans Group x R. calostrotum ssp calostrotum

Hybridized By: Arends,

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R. 'Radium Group'

Rhododendron Cultivar group

R. griersonianum x R. 'Earl of Athlone'

Hybridized By: Crosfield, J. J.

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R. 'Radmosum Group'

Rhododendron Cultivar group

R. calostrotum ssp keleticum Radicans Group x R. racemosum

Hybridized By: Thacker, T.C.