Index

R. 'Xanadu'

Rhododendron Hybrid

R. 'Apricot Lady Chamberlain' X R. cinnabarinum ssp xanthocodon

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 1970

R. 'Xanchart Group'

Rhododendron Cultivar group

R. concinnum X R. yunnanense

Hybridized By: Ingram, C.. Benenden, Kent, England, 1935

R. 'Xanroy Group'

Rhododendron Cultivar group

R. cinnabarinum ssp cinnabarinum Roylei Group X R. cinnabarinum ssp xanthocodon

Hybridized By: Aberconway, Lord. Bodnant, Tal-y-Cafn, Wales, 1937

R. xanthanthum

Natural Hybrid

R. citriniflorum var citriniflorum X R. temenium var temenium

R. xanthopetalum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. xanthostephanum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Tephroplepa

R. xanthostephanum 'Yellow Garland'

Rhododendron Species Selection

Selected By: Crown Estate Commissioners , Windsor, Berkshire , England, 1961

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Tephroplepa

R. 'Xavier De Cock'

Azalea Hybrid

? X ?

Hybridized By: No hybridiser registered, 1958

R. 'Xavier Delacroix'

Rhododendron Hybrid

? X ?

Hybridized By: Stelzner, 1870

R. 'Xenarb Group'

Rhododendron Cultivar group

R. detonsum X R. arboreum ssp arboreum

Hybridized By: Magor, E.J.P.. Lamellan, St. Tudy, Cornwall, England, 1920

R. 'Xenia Group'

Rhododendron Cultivar group

R. 'Helene Schiffner' X R. fortunei ssp fortunei 'Sir Charles Butler'

Hybridized By: Lowinsky T.H.. Tittenhurst, Sunninghill, Bershire, UK, 1919

R. xenium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Xenophile'

Rhododendron Hybrid

R. fortunei ssp fortunei X R. 'Tally Ho Group'

Hybridized By: Strauss, R., 1950

R. 'Xerox'

Rhododendron Hybrid

? X ?

Hybridized By: Dexter, C.O.. Sandwich, MA, USA, 1943

R. 'Xi Lin Men'

Azalea Hybrid

? X ?

Hybridized By: Zhang, Chang Qin | Kunming | China, 2007

R. xiaoxidongense

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Fortunea

R. xichangense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Triflora

R. xiguense

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

R. xinganense

Species

Subgenus: Azaleastrum
Section: Azaleastrum

R. xizangense

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Selensia

R. 'XL-1'

Azalea Hybrid

? X ?

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

R. 'Xmas Rose Pink'

Azalea Hybrid

? X ?

Hybridized By: Coolidge Rare Plant gardens, 1935

R. 'XS-1'

Azalea Hybrid

R. 'EP-2' X R. 'NR-1'

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

R. 'Xtra Fair'

Rhododendron Hybrid

R. 'Hotei' X R. 'Morna Belle'

Hybridized By: Stockman, M.. Port Angeles, Washington, USA, 1989

R. 'Xue Mei Ren'

Azalea Hybrid

R. 'Huang Yue' X ?

Hybridized By: Zhang, Chang Qin | Kunming | China, 2007