Index

R. 'Imbricatum'

Rhododendron Hybrid

? X ?

Hybridized By: No hybridiser registered, 1846

R. 'Immortal'

Rhododendron Hybrid

R. 'Abe Arnott' X R. 'White Blue Peter'

Hybridized By: Delp Weldon E.. Harrisville, Pensylvania, USA, 1991

R. 'Imogene'

Vireya Hybrid

X R. javanicum ssp teysmannii

Hybridized By: Unknown

R. impeditum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

R. impeditum Litangense Group

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

R. impeditum 'Moerhermii'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

R. imperator

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Uniflora

R. imperator 'Purple Emperor'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Uniflora

R. 'Imperatrix'

Azalea Hybrid

? X ?

Hybridized By: Unknown

R. 'Imperial'

Rhododendron Hybrid

R. 'Purple Splendour' X R. 'Arthur Bedford'

Hybridized By: Greer, Harold E.. Eugene, Oregon, USA, 1983

R. 'Impi'

Rhododendron Hybrid

R. sanguineum ssp sanguineum var didymoides X R. 'Moser's Maroon'

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1945

R. 'Impi Group'

Rhododendron Cultivar group

R. sanguineum ssp didymum X R. 'Moser's Maroon'

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1945

R. 'Impi x hemsleyanum'

Rhododendron Hybrid

R. 'Impi' X R. hemsleyanum

Hybridized By: No hybridiser registered

R. impositum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. impressopunctatum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Impromptu'

Rhododendron Hybrid

? X ?

Hybridized By: Brueckner, J.B.. Mississauga, Ontario, Canada, 1981

R. 'Impératrice des Indes'

Azalea Hybrid

? X ?

Hybridized By: Van der Cruyssen, E. | Gentbrugge | Belgium, 1878

R. 'In Tune'

Azaleodendron Hybrid

X ?

Hybridized By: Martin, A,C, 1968

R. 'Inamorata'

Rhododendron Hybrid

R. wardii var wardii X R. fortunei ssp discolor

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 1950

R. 'Inamorata Group'

Rhododendron Cultivar group

R. wardii var wardii X R. fortunei ssp discolor

Hybridized By: Rothschild, Edmund Leopold de. Southampton, UK, 1941

R. 'Inamorata Group x Nymphenburg'

Rhododendron Cultivar group

R. 'Inamorata Group' X R. 'Nymphenburg'

Hybridized By: No hybridiser registered

R. 'Inca Chief'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Inca Gold'

Rhododendron Hybrid

R. 'Chlorops' X ?

Hybridized By: Lancaster, Ben, F.. Lackamas Gardens, Camas, Washington, USA, 1961

R. 'Inca Gold x Koichiro Wada'

Rhododendron Hybrid

R. 'Inca Gold' X R. degronianum ssp yakushimanum 'Koichiro Wada'

Hybridized By: Unknown

R. 'Inca Gold x Koichiro Wada X wardii'

Rhododendron Hybrid

R. 'Inca Gold x Koichiro Wada' X R. wardii var wardii

Hybridized By: Unknown

R. 'Inca Gold x yakushimanum'

Rhododendron Hybrid

R. 'Inca Gold' X R. degronianum ssp yakushimanum

Hybridized By: No hybridiser registered

R. 'Inca Gold x yakushimanum X Catalgla x dichroanthum'

Rhododendron Hybrid

R. 'Inca Gold x yakushimanum' X R. 'Catalgla x dichroanthum'

Hybridized By: No hybridiser registered

R. 'Incarnatum Floribundum'

Vireya Hybrid

X

Hybridized By: Unknown

R. 'Incense'

Azalea Hybrid

? X ?

Hybridized By: Coolidge Rare Plant gardens, 1958

R. 'Inch'

Azalea Hybrid

R. 'Alexander' X ?

Hybridized By: Clagett, W.L. (Buck) | USA | Derwood, Maryland, 1984

R. incommodum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. inconspicuum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Incredibile'

Rhododendron Hybrid

R. degronianum ssp yakushimanum X R. dauricum

Hybridized By: Reich, W., 1986

R. 'Independence'

Azalea Hybrid

R. 'cumberlandense x viscosum' X R. viscosum

Hybridized By: Mezitt, E.V. | Weston Nurseries, Hopkinton, Massachusetts | USA, 1963

R. 'Independence Day'

Rhododendron Hybrid

R. maximum X ?

Hybridized By: Waterer, H. (Knaphill). Woking, Surrey (Knaphill), UK, 1915

R. 'Indian Chief'

Rhododendron Hybrid

R. 'America' X R. 'Kettledrum'

Hybridized By: Stokes, W.E., 1958

R. 'Indian Mound'

Azalea Hybrid

? X ?

Hybridized By: Gartrell, R. D. | Highland Farms, Black Mountain, North Carolina | USA

R. 'Indian Penny'

Rhododendron Hybrid

R. 'Sarita Loder Group' X R. 'Idealist Group'

Hybridized By: James Delbert W.. Eugene, Oregon, USA, 1958

R. 'Indian River'

Rhododendron Hybrid

? X ?

Hybridized By: Hinerman, D.L.. Ann Arbor, Michigan, USA

R. 'Indian Spring'

Azalea Hybrid

? X ?

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

R. 'Indian Squaw'

Rhododendron Hybrid

? X ?

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

R. 'Indian Summer'

Azalea Hybrid

? X ?

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

R. 'Indian Yellow'

Azalea Hybrid

? X ?

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

R. 'Indian Yellow'

Vireya Hybrid

R. 'Crown Princess of Germany' X R. javanicum ssp javanicum

Hybridized By: Veitch & Sons, R.. Exeter, Devon, England, 1885

R. 'Indiana Group'

Rhododendron Cultivar group

R. dichroanthum ssp scyphocalyx X R. kyawii

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1941

R. indicum

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. indicum

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. indicum 'Balsaminiflorum'

Azalea Species Selection

Selected By: Japan , no hybridiser registration, 1882

Subgenus: Tsutsusi
Section: Tsutsusi

R. indicum 'Flame Creeper'

Azalea Species Selection

Selected By: unknown, 1958

Subgenus: Tsutsusi
Section: Tsutsusi

R. indicum 'Hakata-shiro'

Azalea Species Selection

Selected By: Ito, Ihei , Register from 1692 , Japan, 1692

Subgenus: Tsutsusi
Section: Tsutsusi

R. indicum 'Iveryanum'

Azalea Species Selection

Selected By: Ivery, J., 1849

Subgenus: Tsutsusi
Section: Tsutsusi