Index

R. 'Dryade'

Azalea Hybrid

? X ?

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

R. 'Dryope'

Rhododendron Hybrid

? X ?

Hybridized By: Sunningdale Nursery

R. 'Du Pont's Apricot'

Rhododendron Hybrid

? X ?

Hybridized By: Gable, J.B.. Stewartstown, Pennsylvania, USA

R. 'Duane Johnson'

Rhododendron Hybrid

R. 'Butter Brickle' X R. 'September Song'

Hybridized By: Winberg, John, D., 1990

R. 'Duc Adolphe de Nassau'

Rhododendron Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander). Ghent, Belgium

R. 'Duc Adolphe de Nassau'

Azalea Hybrid

? X ?

Hybridized By: No hybridiser registered

R. 'Duc d'Anjou'

Rhododendron Hybrid

? X ?

Hybridized By: Leroy, A.. Angers, France, 1868

R. 'Duc d'Arenberg'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium

R. 'Duc de Cumberland'

Azalea Hybrid

? X ?

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

R. 'Duc de Malakoff'

Azalea Hybrid

? X ?

Hybridized By: Boddaert, B.

R. 'Duc de Nassau'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Duc de Provence'

Azalea Hybrid

? X ?

Hybridized By: Baumann, J. | Ghent | Belgium

R. 'Duc de Rohan'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Duchess Ferreti'

Rhododendron Hybrid

? X ?

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

R. 'Duchess of Connaught'

Vireya Hybrid

R. brookeanum ssp brookeanum var gracile X R. lobbii

Hybridized By: Mason, 1881

R. 'Duchess of Cypress'

Azalea Hybrid

? X ?

Hybridized By: Peterson, N.C. & Stabler, D., 1958

R. 'Duchess of Edinburgh'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Duchess of Edinburgh'

Vireya Hybrid

R. brookeanum ssp gracile X R. longiflorum var longiflorum

Hybridized By: Veitch & Sons, R.. Exeter, Devon, England, 1881

R. 'Duchess of Fife'

Vireya Hybrid

R. 'Princess Royal' X R. javanicum ssp teysmannii

Hybridized By: Veitch & Son, J.. Royal Exotic Nurseries, Chelsea, London, England, 1889

R. 'Duchess of Teck'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England, 1892

R. 'Duchess of Teck'

Vireya Hybrid

R. 'Princess Royal' X R. brookeanum ssp brookeanum var gracile

Hybridized By: Veitch & Son, J.. Royal Exotic Nurseries, Chelsea, London, England, 1979

R. 'Duchess of York'

Rhododendron Hybrid

? X ?

Hybridized By: Paul, G.. The Old Nurseries, Cheshunt, Hertfordshire, England

R. 'Duchess Satin'

Vireya Hybrid

R. konori var konori X R. leucogigas

Hybridized By: Rouse, J.L.. Toorak, Victoria, Australia, 1988

R. duclouxii

Natural Hybrid

R. scabrifolium var spiciferum X R. spinuliferum

R. 'Duenna'

Azalea Hybrid

? X ?

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA

R. 'Duet'

Rhododendron Hybrid

? X ?

Hybridized By: Leach, Dr. David G.. North Madison, Ohio, USA

R. 'Duets'

Azalea Hybrid

? X ?

Hybridized By: Kondratovičs, Rihard | Riga | Latvia

R. 'Duke of Cornwall'

Rhododendron Hybrid

? X ?

Hybridized By: Gill, Richards & Sons. Penryn, Cornwall, England

R. 'Duke of Cornwall Group'

Rhododendron Cultivar group

? X ?

Hybridized By: Gill, Richards & Sons. Penryn, Cornwall, England, 1907

R. 'Duke of Edinburgh'

Azalea Hybrid

? X ?

Hybridized By: Rollisson & Sons, W. | Springfield Nursery, Upper Tooting, London | England, 1877

R. 'Duke of Lauzun'

Azalea Hybrid

? X ?

Hybridized By: Cole, D.J., 1987

R. 'Duke of Portland'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England

R. 'Duke of Teck'

Vireya Hybrid

R. brookeanum ssp gracile X R. 'Princess Royal'

Hybridized By: Veitch & Son, J.. Royal Exotic Nurseries, Chelsea, London, England, 1900

R. 'Duke of Wellington'

Azalea Hybrid

? X ?

Hybridized By: Henderson & Co | Pineapple Nursery, London | England

R. 'Duke of York'

Rhododendron Hybrid

R. fortunei ssp fortunei X R. 'Scipio'

Hybridized By: Paul, G.. The Old Nurseries, Cheshunt, Hertfordshire, England, 1880

R. 'Dukeshill'

Rhododendron Hybrid

? X ?

Hybridized By: Crown Estate Commissioners. Windsor, Berkshire, England

R. 'Dulcibella Group'

Rhododendron Cultivar group

R. 'Diphole Pink' X R. facetum

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1936

R. 'Dulcie Lelliott'

Vireya Hybrid

R. rhodoleucum X R. 'aurigeranum x Doctor Herman Sleumer'

Hybridized By: Lelliott, T.. Boronia, Victoria, Australia, 1976

R. dumicola

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

R. 'Dumper's Yellow'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Dumper's Yellow x Phipps Yellow'

Rhododendron Hybrid

R. 'Dumper's Yellow' X R. 'Phipps Yellow'

Hybridized By: Unknown

R. 'Dumper's Yellow x Phipps Yellow X One Thousand Butterflies'

Rhododendron Hybrid

R. 'Dumper's Yellow x Phipps Yellow' X R. 'One Thousand Butterflies'

Hybridized By: Unknown

R. 'Dunlin Group'

Rhododendron Hybrid

? X ?

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

R. 'Duque de San Lucar'

Rhododendron Hybrid

R. 'Marion' X R. 'C.S. Sargent'

Hybridized By: Felix & Dijkhuis. Boskoop, Netherlands, 1953

R. 'Durango'

Rhododendron Hybrid

R. 'Ruby Bowman' X R. elliottii 'War Paint'

Hybridized By: Goheen. Dr. David. Camas, Washington, USA, 1975

R. 'Durantik'

Rhododendron Hybrid

R. 'Hyperion' X R. 'Nova Zembla x Purple Splendour X Purple Splendour'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1984

R. durionifolium ssp durionifolium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

R. durionifolium ssp sabahense

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

R. 'Duse'

Rhododendron Hybrid

? X ?

Hybridized By: Seidel, T.J.R.. Dresden/Grüngräbchen, Germany, 1918

R. 'Dusky Dawn'

Rhododendron Hybrid

R. 'Vibrant' X R. 'Jalisco Group'

Hybridized By: Harrison, E.G.W.W.. Bodmin, Cornwall, England, 1972

R. 'Dusky Maid Group'

Rhododendron Cultivar group

R. 'Moser's Maroon' X R. fortunei ssp discolor

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1932