Rhododendron Index

R. 'Alphonse Pericat'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Pericat, A.

R. 'Alphonsianum'

Evergreen Azalea Hybrid

? x ?

Hybridized By: de Witte

R. 'Alphée'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Demay, H.

R. 'Alpine'

Evergreen Azalea Hybrid

? x ?

Hybridized By: USDA, Department of Agriculture

R. 'Alpine Dew'

Rhododendron Hybrid

R. racemosum x R. 'Tessa'

Hybridized By: Cowles, J.C.

R. 'Alpine Gem Group'

Rhododendron Cultivar group

R. brachyanthum ssp brachyanthum x R. ferrugineum

Hybridized By: Thacker, T.C.

R. 'Alpine Glow'

Rhododendron Hybrid

R. 'Loderi Group' x R. calophytum var calophytum

Hybridized By: Rothschild, L. de

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R. 'Alpine Meadow'

Rhododendron Hybrid

R. leucaspis x ?

Hybridized By: Dunedin Rhododendron Group

R. 'Alpine Rose'

Rhododendron Hybrid

R. 'Loderi Group' x R. calophytum var calophytum

Hybridized By: Rothschild, L. de

R. 'Alpine Snow'

Rhododendron Hybrid

R. 'lindleyi x dalhousiae' x R. taggianum

Hybridized By: Richards, C.W.

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R. 'Alpinum'

Evergreen Azalea Hybrid

? x ?

Hybridized By: The Netherlands, hybridizer not registered

R. 'Alre Group'

Rhododendron Hybrid

R. 'Alan Group' x R. forrestii Repens Group

Hybridized By: Aberconway, Lord

R. 'Alsace'

Rhododendron Hybrid

? x ?

R. 'Alsea'

Deciduous Azalea Hybrid

R. 'Hugh Wormald' x R. 'Marion Merriman'

Hybridized By: Slonecker, H.J.

R. 'Alston'

Rhododendron Hybrid

R. 'Hawk Group' x R. griffithianum

Hybridized By: Fortescue, L.S.

R. 'Alstroemeroides'

Rhododendron Hybrid

R. 'Caucasicum Album' x ?

Hybridized By: Boddaert, B.

R. 'Alstroemeroides Album'

Rhododendron Hybrid

? x ?

Hybridized By: André, E. F.

R. 'Altaclarense'

Rhododendron Hybrid

(R. catawbiense x ponticum) x R. arboreum ssp arboreum

Hybridized By: Gowen, J.R.

R. 'Altaclarense'

Deciduous Azalea Hybrid

R. molle ssp japonicum x ?

Hybridized By: Lee, J. & C.

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R. 'Altaclarense Coccineum'

Rhododendron Hybrid

? x ?

Hybridized By: Veitch & Son, J.

R. 'Altaclarense Roseum'

Rhododendron Hybrid

? x ?

Hybridized By: Gheldolf, C.

R. 'Altaclarense Speciosum'

Rhododendron Hybrid

? x ?

R. 'Altaclarense Splendens'

Rhododendron Hybrid

? x ?

Hybridized By: Gheldolf, C.

R. 'Altaclarense Superbum'

Rhododendron Hybrid

? x ?

R. 'Altaclarense Triumph'

Rhododendron Hybrid

? x ?

Hybridized By: Guérin, M

R. 'Altaclerense'

Deciduous Azalea Hybrid

R. molle ssp molle x R. viscosum 'Rubescens Major'

Hybridized By: Highclere

R. 'Altaclerense Group'

Rhododendron Hybrid

? x ?

R. 'Altair'

Evergreen Azalea Hybrid

R. 'Ivory' x R. 'Kagetsu'

Hybridized By: Morrison, B.Y.

R. 'Altair'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Exbury

R. 'Altanuwa'

Deciduous Azalea Hybrid

R. cumberlandense x R. viscosum

Hybridized By: Holmsomback, O.

R. alternans

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. alticola

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

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R. 'Altweibersommer'

Rhododendron Hybrid

R. degronianum ssp yakushimanum x ?

Hybridized By: Müller, Heinz

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R. 'Alumni Day'

Rhododendron Hybrid

R. maximum x R. fortunei ssp discolor

Hybridized By: Nearing, G.G.

R. alutaceum var alutaceum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

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R. alutaceum var iodes

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

R. alutaceum var iodes 'White Plains'

Rhododendron Species Selection

R. alutaceum var russotinctum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Taliensia

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R. alutaceum var russotinctum 'Easter Island'

Rhododendron Species Selection

Selected By: Clarke, S.R.

R. 'Alva'

Rhododendron Hybrid

R. hemsleyanum x R. degronianum ssp yakushimanum 'Koichiro Wada'

Hybridized By: Goheen. Dr. David

R. 'Alvera Hager'

Evergreen Azalea Hybrid

R. 'Pink Pearl x Mandarin' x R. 'Mother of Pearl'

Hybridized By: Hager, D.

R. 'Alvinda Group'

Rhododendron Cultivar group

R. 'Ivery's Scarlet' x R. 'Loderi Group'

Hybridized By: Aberconway, Lord

R. 'Always a Lady'

Rhododendron Hybrid

? x ?

Hybridized By: Childers, A.A.

R. 'Always Admired'

Rhododendron Hybrid

R. 'Scintillation' x R. haematodes ssp haematodes

Hybridized By: Wister, J.C.

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R. 'Always April'

Rhododendron Hybrid

R. 'Mindy's Love' x R. 'Pink Petticoats'

Hybridized By: Barlup, Jim

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R. 'Alwin'

Rhododendron Hybrid

? x ?

Hybridized By: Seidel, T.J.R.

R. 'Alyssa Nori'

Rhododendron Hybrid

R. 'Nancy Evans' x R. 'Crest x Ken Janeck'

Hybridized By: Brockenbrough, E.C

R. 'Alyssa Ray'

Rhododendron Hybrid

R. 'Weldy' x R. 'Fiery Orange'

Hybridized By: Ring, T.L.

R. 'Alzina'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Coolidge Rare Plant gardens

R. 'Alďna'

Evergreen Azalea Hybrid

R. 'Uguns' x ?

Hybridized By: Kondratovičs, Rihard