Rhododendron Index

R. 'Hille'

Rhododendron Hybrid

R. 'Graf Lennart' x R. irroratum ssp irroratum 'Polka Dot'

Hybridized By: Wieting, J.

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R. 'Hilo'

Rhododendron Hybrid

R. 'Hotei' x R. 'Brandt'sTropicana'

Hybridized By: Brockenbrough, E.C

R. himantodes var himantodes

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

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R. himantodes var lavandulifolium

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

R. 'Himmelberg'

Rhododendron Hybrid

? x ?

Hybridized By: Reich, W.

R. 'Hina'

Vireya Hybrid

R. zoelleri x R. 'Doctor Hermann Sleumer'

Hybridized By: Mitchell, R.A.

R. 'Hindsight'

Rhododendron Hybrid

R. minus Carolinianum Group 'Epoch' x R. 'Achiever x pemakoense'

Hybridized By: Delp Weldon E.

R. 'Hindustan'

Rhododendron Hybrid

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

Hybridized By: Leach, Dr. David G.

R. 'Hino-crimson'

Evergreen Azalea Hybrid

R. 'Amoenum' x R. 'Hinodegiri'

Hybridized By: Vermeulen & Sons, J.

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R. 'Hino-red'

Evergreen Azalea Hybrid

? x ?

R. 'Hino-supreme'

Evergreen Azalea Hybrid

R. 'Hinodegiri' x ?

Hybridized By: Sawada, K.

R. 'Hino-white'

Evergreen Azalea Hybrid

? x ?

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R. 'Hinodegiri'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

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R. 'Hinomayo'

Evergreen Azalea Hybrid

R. 'Obtusum Group' x ?

Hybridized By: Japan

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R. 'Hip Hip Array'

Rhododendron Hybrid

R. catawbiense 'Catalgla' x R. 'Lady De Rothschild'

Hybridized By: Looye, Jack

R. hippophaeoides var hippophaeoides

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

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R. hippophaeoides var hippophaeoides 'Bei-ma-shan'

Rhododendron Species Selection

R. hippophaeoides var hippophaeoides 'Blue Silver'

Rhododendron Species Selection

Selected By: Hobbie, Dietrich G.

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R. hippophaeoides var hippophaeoides 'Haba Shan'

Rhododendron Species Selection

Selected By: Russell, J.P.C.

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R. hippophaeoides var hippophaeoides 'Inshniach'

Rhododendron Species Selection

R. hippophaeoides var hippophaeoides 'Sunningdale'

Rhododendron Species Selection

R. hippophaeoides var occidentale

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Lapponica

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R. 'Hiraethlyn'

Rhododendron Hybrid

R. haematodes ssp haematodes x R. griffithianum

R. 'Hiraethlyn Group'

Rhododendron Cultivar group

? x ?

R. 'Hiroko'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Arends, W.

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R. 'Hirschfeld'

Rhododendron Hybrid

R. fortunei ssp fortunei x ?

Hybridized By: von Martin, V.

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R. hirsutiformum

Natural Hybrid

R. ferrugineum x R. hirsutum

R. hirsutipetiolatum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Heliolepida

R. hirsutum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Rhododendron

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R. hirsutum 'Albiflorum Laciniatum'

Rhododendron Species Selection

Selected By: Groebel

R. hirsutum 'Album'

Rhododendron Species Selection

Selected By: Firma C. Esveld

R. hirsutum f angustifolium

Species

R. hirsutum 'Flore Pleno'

Rhododendron Species Selection

Selected By: Firma C. Esveld

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R. hirsutum 'Laciniatum'

Rhododendron Species Selection

Selected By: Schröter

R. hirsutum 'Variegatum'

Deciduous Azalea Species Selection

Selected By: UK, No hybridizer registered

R. hirtipes

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Selensia

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R. hirtipes 'Ita'

Rhododendron Species Selection

R. hirtipes 'Peachblow'

Rhododendron Species Selection

R. hirtolepidotum

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Euvireya

R. 'Hisako'

Evergreen Azalea Hybrid

? x ?

R. 'Hitomaru'

Evergreen Azalea Hybrid

? x ?

R. 'HL-7'

Deciduous Azalea Hybrid

? x ?

Hybridized By: Aromi, E.J

R. 'HM-1'

Deciduous Azalea Hybrid

R. 'Hiawatha' x R. austrinum

Hybridized By: Aromi, E.J

R. 'Ho-o'

Evergreen Azalea Hybrid

? x ?

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R. 'Ho-oden'

Evergreen Azalea Hybrid

? x ?

Hybridized By: Japan

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R. 'Hockessin'

Rhododendron Hybrid

R. pubescens x R. keiskei

Hybridized By: Nearing, G.G.

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R. hodgsonii

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Falconera

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R. hodgsonii 'Poet's Lawn'

Rhododendron Species Selection

Selected By: Crown Estate Commissioners

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R. 'hodgsonii x campanulatum'

Rhododendron Hybrid

R. hodgsonii x R. campanulatum ssp campanulatum

Hybridized By: Watson, E.M. Mrs. (Elsie)

R. 'Hofgartendirektor Krause'

Evergreen Azalea Hybrid

? x ?