Index

R. 'Flower Queen'

Azalea Hybrid

? X ?

Hybridized By: Chisholm, J.J., 1934

R. 'Fluff'

Rhododendron Hybrid

R. degronianum ssp yakushimanum 'Koichiro Wada' X R. 'Vanessa'

Hybridized By: Bovee Robert M.. Oswego, Oregon, USA, 1950

R. 'Fluffy'

Azalea Hybrid

? X ?

Hybridized By: Arneson, Ivan & Robertha | Arneson Nursery, Canby, Oregon | USA

R. 'Fluidum'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. flumineum

Species

Subgenus: Tsutsusi
Section: Tsutsusi

R. 'Folcroft'

Rhododendron Hybrid

R. maximum X R. 'maximum x fortunei'

Hybridized By: Scott Arboretum, 1958

R. 'Foliis Variegated'

Rhododendron Hybrid

? X ?

Hybridized By: Loddiges, C. & Sons. Hackney, London, England, 1804

R. 'Folks Wood'

Rhododendron Hybrid

? X ?

Hybridized By: Hardy, Maj. A.E.. Hythe, Kent, UK

R. 'Folksong'

Azalea Hybrid

? X ?

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA

R. 'Folly'

Azalea Hybrid

? X ?

Hybridized By: Morrison, B.Y. | Pass Christian, Mississippi | USA

R. 'Fooey'

Azalea Hybrid

R. 'Dream x Blizzard' X R. 'Surprise'

Hybridized By: Hager, D. | Hager Nurseries, Spotsylvania, Virginia | USA

R. 'Fool's Folly'

Azalea Hybrid

R. 'Rothschild Supreme' X R. austrinum

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

R. 'Foolproof'

Rhododendron Hybrid

? X ?

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

R. 'For All Seasons'

Rhododendron Hybrid

? X ?

Hybridized By: Shapiro, B. & M.

R. 'Forbidden Plateau'

Rhododendron Hybrid

R. 'Courtenay Queen' X R. fortunei ssp fortunei

Hybridized By: Wright, H.R.. Courtenay, British Columbia, Canada, 2005

R. 'Forest Blaze'

Rhododendron Hybrid

? X ?

Hybridized By: Van de Ven K.. Olinda, Victoria, Australia

R. 'Forest Border'

Rhododendron Hybrid

? X ?

Hybridized By: Scott Arboretum

R. 'Forest Festival'

Rhododendron Hybrid

? X ?

Hybridized By: Elliott, W.

R. 'Forest Fire'

Rhododendron Hybrid

? X ?

Hybridized By: Henny, Rudolph. Brooks, Oregon, USA

R. 'Forest Fire'

Azalea Hybrid

? X ?

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

R. 'Forest Flame'

Rhododendron Hybrid

? X ?

Hybridized By: Van de Ven K.. Olinda, Victoria, Australia

R. 'Forest Lane'

Rhododendron Hybrid

R. 'Nancy Evans' X R. 'Lem's Cameo'

Hybridized By: Jones, K.. Fort Bragg, CA, USA, 1992

R. 'Forest Sprite'

Rhododendron Hybrid

? X ?

Hybridized By: Starling, 2002

R. 'Forever Amber'

Rhododendron Hybrid

? X ?

Hybridized By: Waterer (Bagshot). Surrey, England

R. 'Forever Spring'

Rhododendron Hybrid

? X ?

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

R. 'Forever Violet'

Rhododendron Hybrid

? X ?

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

R. 'Forever Young'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Forever Yours'

Rhododendron Hybrid

R. 'Creamy Chiffon' X R. 'Vulcan'

Hybridized By: McCulloch, S.. Olympia, WA, USA, 1982

R. 'Forlana'

Rhododendron Hybrid

R. 'Goldsworth Orange' X R. 'Mrs J G Millais'

Hybridized By: Hachmann, Hans. Barmstedt in Holstein, Germany, 1965

R. formosanum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Argyrophylla

R. 'Formosum'

Azalea Hybrid

X ?

Hybridized By: unknown, 1958

R. formosum var formosum

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. formosum var formosum 'Lucy Elizabeth'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. formosum var inaequale

Species

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. formosum var inaequale 'Elizabeth Bennet'

Rhododendron Species Selection

Selected By: Mackenzie, E. Mrs, 1981

Subgenus: Rhododendron
Section: Rhododendron
Subsection: Maddenia

R. 'formosum x dendrocharis'

Rhododendron Hybrid

R. formosum var formosum X R. dendrocharis

Hybridized By: Cox, Peter A.. Glendoick, Scotland

R. forrestii Repens Group

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. 'forrestii Repens Group x calophytym'

Rhododendron Hybrid

R. forrestii Repens Group X R. calophytum var calophytum

Hybridized By: Thompson’s Nursery. Waldport, Oregon, USA

R. forrestii ssp forrestii

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp forrestii 'Sheinghku'

Rhododendron Species Selection

Selected By: Stevenson, J.B. , Ascot, Berkshire , England, 1935

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp papillatum

Species

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp papillatum 'Carmelita'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp papillatum 'Cyril Berkeley'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp papillatum 'Scarlet Pimpernel'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. forrestii ssp papillatum 'Scarlet Runner'

Rhododendron Species Selection

Selected By: Unknown

Subgenus: Hymenanthes
Section: Pontica
Subsection: Neriiflora

R. 'Forsterianum'

Azalea Hybrid

R. veitchianum X R. edgeworthii

Hybridized By: Forster, R.R., 1882

R. 'Fort Bragg Glow'

Rhododendron Hybrid

R. 'Ruby Bowman' X R. elliottii

Hybridized By: Druecker, J.S.. Fort Bragg, CA, USA, 1966

R. 'Fort Cream'

Rhododendron Hybrid

? X ?

Hybridized By: Unknown

R. 'Fort Cream x vernicosum'

Rhododendron Hybrid

R. 'Fort Cream' X R. vernicosum

Hybridized By: Unknown

R. fortunans

Species

Subgenus: Rhododendron
Section: Vireya
Subsection: Malayovireya

R. 'Fortune'

Rhododendron Hybrid

R. falconeri ssp falconeri X R. sinogrande

Hybridized By: Rothschild, L. de. Founder of Exbury Gardens, UK, 1938