Rhododendron Index

R. maximum 'Great Laurel'

Rhododendron Species Selection

R. maximum 'Harkness'

Rhododendron Species Selection

R. maximum 'Independence'

Rhododendron Species Selection

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R. maximum 'Leachii'

Rhododendron Species Selection

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R. maximum 'Little's Enchanting Shells'

Rhododendron Species Selection

Selected By: Little, P.L.

R. maximum 'Marginatum'

Rhododendron Species Selection

Selected By: Leroy, A.

R. maximum 'Mount Mitchell'

Rhododendron Species Selection

R. maximum 'Nassau Red'

Rhododendron Species Selection

R. maximum 'Rosebay'

Rhododendron Species Selection

R. maximum 'Summertime'

Rhododendron Species Selection

Selected By: Crown Estate Commissioners

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R. maximum var album

Species

R. 'maximum x calophytum'

Rhododendron Hybrid

R. maximum x R. calophytum var calophytum

Hybridized By: Kehr, A.E.

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R. 'maximum x catawbiense'

Rhododendron Hybrid

R. maximum x R. catawbiense

R. 'maximum x fortunei'

Rhododendron Hybrid

R. maximum x R. fortunei ssp fortunei

R. 'maximum x Goldsworth Orange'

Rhododendron Hybrid

R. maximum x R. 'Goldsworth Orange'

R. 'maximum x Goldsworth Orange X America x Gertrud Schäle Group'

Rhododendron Hybrid

R. 'maximum x Goldsworth Orange' x R. 'America x Gertrud Schäle Group'

R. 'maximum x haematodes'

Rhododendron Hybrid

R. maximum x R. haematodes ssp haematodes

R. 'maximum x Honeymoon'

Rhododendron Hybrid

R. maximum x R. 'Honeymoon'

R. 'maximum x ponticum'

Rhododendron Hybrid

R. maximum x R. ponticum

R. 'maximum x thomsonii'

Rhododendron Hybrid

R. maximum x R. thomsonii ssp thomsonii

R. 'maximum x thomsonii X fortunei x haematodes'

Rhododendron Hybrid

R. 'maximum x thomsonii' x R. fortunei ssp fortunei 'fortunei x haematodes'

R. 'maximum x vernicosum'

Rhododendron Hybrid

R. maximum x R. vernicosum

R. 'maximum x yakushimanum'

Rhododendron Hybrid

R. maximum x R. degronianum ssp yakushimanum

R. 'maximum x yakushimanum X Adele's Yellow'

Rhododendron Hybrid

R. 'maximum x yakushimanum' x R. 'Adele's Yellow'

R. 'Maxine Childers'

Rhododendron Hybrid

R. strigillosum x R. 'Elizabeth Group'

Hybridized By: Childers, A.A & M.

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R. maxwellii

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Maxwellii'

Evergreen Azalea Hybrid

? x ?

R. 'Maxwellii x Snow'

Evergreen Azalea Hybrid

R. 'Maxwellii' x R. 'Snow'

R. 'May Day'

Rhododendron Hybrid

R. haematodes ssp haematodes x R. griersonianum

Hybridized By: Williams, A.M.

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R. 'May Day Group'

Rhododendron Cultivar group

R. haematodes ssp haematodes x R. griersonianum

Hybridized By: Williams, A.M.

R. 'May Moonlight'

Rhododendron Hybrid

? x ?

Hybridized By: Wister, J.C.

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R. 'May Morn'

Rhododendron Hybrid

R. 'May Day Group' x R. beanianum

Hybridized By: Aberconway, Lord

R. 'May Morn x proteoides'

Rhododendron Hybrid

R. May Morn x R. proteoides

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R. 'May Queen Group'

Rhododendron Cultivar group

? x ?

R. 'May Song'

Rhododendron Hybrid

R. 'Bow Bells' x R. 'Day Dream'

Hybridized By: Grace, G.D.

R. 'May Young'

Evergreen Azalea Hybrid

R. nakaharae x R. 'Rosebud'

Hybridized By: Griswold, G.

R. 'Mayaro'

Deciduous Azalea Hybrid

R. 'Washington State Centennial' x R. 'Raimunde x Twilight Sky'

Hybridized By: Hübbers, K-H.

R. mayebarae

Species

Subgenus: Tsutsusi
Section: Brachycalyx

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R. 'Mayo'

Deciduous Azalea Hybrid

R. 'Washington State Centennial' x R. 'Arouca'

Hybridized By: Hübbers, K-H.

R. 'Mazais Jefiņš'

Deciduous Azalea Hybrid

R. kosterianum x R. prinophyllum

Hybridized By: Kondratovičs, Rihard

R. 'Mazurka'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Waterer, H. (Knaphill)

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R. 'Mcnabii'

Rhododendron Hybrid

? x ?

R. 'Mead'

Rhododendron Hybrid

R. 'Sunspray' x R. 'Lem's Cameo'

Hybridized By: Olson, J.

R. 'Meadowbrook'

Rhododendron Hybrid

R. 'Mrs Charles S Sargent' x R. 'Everestianum'

Hybridized By: Vossberg, P.D.

R. 'Meadowgold'

Rhododendron Hybrid

R. burmanicum x R. 'Lemon Mist'

Hybridized By: Scott, R.W.

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R. meddianum var atrokermesinum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Thomsonia

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R. meddianum var meddianum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Thomsonia

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R. 'Medea Group'

Rhododendron Cultivar group

R. 'Red Admiral Group' x R. sutchuenense

Hybridized By: Magor, E.J.P.

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R. medoense

Species

Subgenus: Azaleastrum
Section: Azaleastrum

R. medoense var adenostylum

Species