Index

R. 'Serendipity'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. aureum

Hybridized By: Potter, B.C., 1971

R. 'Serenity'

Azalea Hybrid

R. simsii var simsii X R. mucronatum var mucronatum

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA, 1941

R. 'Sericeum'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1844

R. 'Sericeum Amarantum'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1850

R. 'Sericeum Elegans'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1850

R. 'Sericeum Muculatum'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1850

R. 'Sericeum Pallidum'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1850

R. 'Sericeum Superbum'

Azalea Hybrid

? X ?

Hybridized By: Verschaffelt, A. (Alexander) | Ghent | Belgium, 1850

R. 'Serious Pink'

Rhododendron Hybrid

? X ?

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA

R. serotinum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Fortunea

R. serpyllifolium

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. serpyllifolium 'Albiflorum'

Azalea Species Selection

Selected By: Greer, Harold E. , Eugene, Oregon , USA, 1982

Subgenus: Tsutsusi
Section: Tsutsusi

R. serpyllifolium f album

Species

R. serpyllifolium var albiflorum

Species

R. sessilifolium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Sesterianum'

Rhododendron Hybrid

R. edgeworthii X R. formosum var formosum

Hybridized By: Firma S. Rinz, 1862

R. 'Seta'

Rhododendron Hybrid

R. spinuliferum X R. moupinense

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1928

R. 'Seta Group'

Rhododendron Cultivar group

? X ?

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

R. setosum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

R. 'Seven Dwarfs'

Azalea Hybrid

R. indicum 'Okina-nishiki' X R. 'Grace Freeman No. 2'

Hybridized By: Harris, J.O. | Lawrenceville, Georgia | USA, 1970

R. 'Seven Stars'

Rhododendron Hybrid

R. 'Loderi Sir Joseph Hooker' X R. degronianum ssp yakushimanum

Hybridized By: Crown Estate Commissioners. Windsor, Berkshire, England, 1965

R. 'Seven Up'

Rhododendron Hybrid

R. aureum var aureum X R. maximum

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1995

R. 'Severa'

Azalea Hybrid

? X ?

Hybridized By: Jacob-Makoy, L. | Liege/Luik | Belgium, 1870

R. 'Seville'

Azalea Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill) | Woking, Surrey (Knaphill) | UK, 1926

R. 'Seńora Meldon'

Rhododendron Hybrid

R. augustinii ssp augustinii 'Lackamas Blue' X R. 'Blue Diamond'

Hybridized By: Goheen. Dr. David. Camas, Washington, USA, 1982

R. shaanxiense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Triflora

R. 'Shaazam'

Rhododendron Hybrid

R. 'Pink Twins' X R. 'Leah Yates'

Hybridized By: Yates, H.R.. Frostburg, Maryland,, USA, 1959

R. 'Shadowland'

Rhododendron Hybrid

R. 'Janet Blair' X R. 'Polynesian Sunset'

Hybridized By: Ahern, T. (Tom). Bethlehem, PA, USA, 1994

R. 'Shah Jehan'

Rhododendron Hybrid

R. 'Day Dream Group' X R. 'Margaret Dunn Group'

Hybridized By: Brandt, Lester E.. Tacoma, Washington, USA, 1965

R. 'Shaker Sunrise'

Rhododendron Hybrid

? X ?

Hybridized By: Cowles, J.C.. Stow, MA (superintendent of Dexter Estate 1959-1967), USA, 1960

R. 'Shalom'

Rhododendron Hybrid

? X ?

Hybridized By: Lem Halfdan. Seattle, Washington, USA

R. 'Sham's Candy'

Rhododendron Hybrid

R. 'Pinnacle' X R. 'Pink Cameo'

Hybridized By: Shammarello, A.M. Euclid, Ohio, USA, 1960

R. 'Sham's Flame'

Azalea Hybrid

R. 'Fireball' X R. 'Gable's Flame'

Hybridized By: Shammarello, A.M | Euclid, Ohio | USA, 1951

R. 'Sham's Juliet'

Rhododendron Hybrid

R. catawbiense X R. 'Boule de Neige'

Hybridized By: Shammarello, A.M. Euclid, Ohio, USA, 1943

R. 'Sham's Pink'

Rhododendron Hybrid

? X R. 'Boule de Neige'

Hybridized By: Shammarello, A.M. Euclid, Ohio, USA, 1943

R. 'Sham's Ruby'

Rhododendron Hybrid

? X ?

Hybridized By: Shammarello, A.M. Euclid, Ohio, USA

R. 'Shamrock'

Rhododendron Hybrid

R. keiskei X R. hanceanum Nanum Group

Hybridized By: Ticknor, R.L., 1971

R. 'Shamrock'

Azalea Hybrid

R. 'Robin Hill Frosty' X R. 'Easter Parade'

Hybridized By: Vines,R.C. | Amelia Island, Florida | USA, 1990

R. 'Shanghai'

Rhododendron Hybrid

? X ?

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

R. 'Shanghai Suzie'

Azalea Hybrid

? X ?

Hybridized By: Vines,R.C. | Amelia Island, Florida | USA

R. 'Shangri La'

Rhododendron Hybrid

R. 'General Sir John du Cane Group' X R. griffithianum

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 1965

R. 'Shangri La Group'

Rhododendron Cultivar group

? X ?

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

R. shanii

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

R. 'Shanna’s Song'

Rhododendron Hybrid

R. 'Mrs Furnivall' X R. 'One Thousand Butterflies'

Hybridized By: Barlup, Jim. Bellevue, USA, 1989

R. 'Shannon'

Azalea Hybrid

R. simsii var simsii 'Vittatum' X R. 'Maxwellii'

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA, 1948

R. 'Shanti'

Rhododendron Hybrid

R. 'Biskra' X R. 'Conroy'

Hybridized By: Hübbers, K-H.. Kranenburg, Germany, 1990

R. 'Shantung Pink'

Vireya Hybrid

X R. laetum

Hybridized By: Unknown

R. 'Shantung Rose'

Vireya Hybrid

X R. laetum

Hybridized By: Unknown

R. 'Shanty'

Azalea Hybrid

? X ?

Hybridized By: Waterer, H. (Knaphill) | Woking, Surrey (Knaphill) | UK, 1968

R. 'Shapiro Starbright'

Rhododendron Hybrid

? X ?

Hybridized By: Shapiro, B. & M.

R. 'Sharaku'

Azalea Hybrid

X

Hybridized By: Japan | no hybridiser registration, 1979