Rhododendron Species

 
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aberconwayi

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 1937
First described: 1948, (Cowan
Richard S. Cowan
(1921-1997)
USA, Crawfordsville, Indiana
Botanical-short: Cowan
).

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Rhododendron aberconwayi
aberrans   (described by: Tagg
Harry F. Tagg
(1874-1933)
Scotland, Edinburgh
Botanical-short: Tagg
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for traillianum var traillianum
abietifoliumNo pictures yet. Read more
achroanthum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
)
Synonym for rupicola var rupicola
acraium   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
)
Synonym for primuliflorum
acrocline Synonym for culminicolum var nubicola

acrophilum

SubgenusRhododendron
SectionVireya
SubsectionEuvireya

In cultivation since: 1992
First described: 1953, (Merr.
Elmer Drew Merrill
(1876-1956)
USA, Maine, East Aubrun
Botanical-short: Merr.
, Quisumb.
Eduardo Quisumbing
(1895-1986)
Philipines
Botanical-short: Quisumb.
).

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Rhododendron acrophilum

acuminatum

SubgenusVireya
SectionMalayovireya
Subsection

In cultivation since: 0
First described: 1852, (Hook. f.
Sir Joseph Dalton Hooker
(1817-1911)
England, Suffolk
Botanical-short: Hook. f.
).

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Rhododendron acuminatum
acuminatum Synonym for mucronulatum var mucronulatum
acuminatum See mucronulatum var acuminatum
acutifolium See poukhanense f acutifolium
adamsii   (described by: Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
)
Synonym for fragrans
adansonii   (described by: Pépin
Pierre Denis Pépin
(1802-1876)
France
Botanical-short: Pépin
)
Synonym for ponticum

adenogynum

SubgenusHymenanthes
SectionPontica
SubsectionTaliensia

In cultivation since: 1910
First described: 1912, (Diels
Dr. Friedrich Ludwig Emil Diels
(1874-1945)
Germany, Hamburg
Botanical-short: Diels
).

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Rhododendron adenogynum
adenogynum Adenophorum GroupNo pictures yet. Read more
adenophorum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
)
Synonym for adenogynum Adenophorum Group

adenopodum

SubgenusHymenanthes
SectionPontica
SubsectionArgyrophylla

In cultivation since: 1900
First described: 1895, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron adenopodum
adenostemonum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
)
Synonym for irroratum ssp pogonostylum
adenostylosum See oreodoxa var adenostylosum
adenostylum See medoense var adenostylum

adenosum

SubgenusHymenanthes
SectionPontica
SubsectionGlischra

In cultivation since: 1929
First described: 1978, (Davidian
H.H. Davidian
(0-0)
Botanical-short: Davidian
).

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Rhododendron adenosum
adenosum See glischrum var adenosum

adinophyllum

SubgenusRhododendron
SectionDiscovireya
Subsection

In cultivation since: 1998
First described: 1940, (Merr.
Elmer Drew Merrill
(1876-1956)
USA, Maine, East Aubrun
Botanical-short: Merr.
).

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Rhododendron adinophyllum
admirabile   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for lukiangense
adoxum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for vernicosum
adroserum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for lukiangense
aechmophyllum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for yunnanense
aemulans See viscosa var aemulans
aemulans See viscosum var aemulans
aemulorum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
)
Synonym for mallotum
aequabileNo pictures yet. Read more
aeruginosum   (described by: Hook. f.
Sir Joseph Dalton Hooker
(1817-1911)
England, Suffolk
Botanical-short: Hook. f.
)
See campanulatum ssp aeruginosum
aestivale See cinnabarinum f aestivale

afghanicum

SubgenusRhododendron
SectionRhododendron
SubsectionAfghanica

In cultivation since: 1880
First described: 1880, (Aitch
James Edward Tierney Aitchison
(1835-1899)
Nimach, India
Botanical-short: Aitch
, Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
).

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Rhododendron afghanicum
aganniphoides See balfourianum var aganniphoides
aganniphum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Kingdon-Ward
Frank Kingdon-Ward
(1885-1958)
England, Manchester
Botanical-short: Kingdon-Ward
)
See aganniphum var aganniphum

aganniphum var aganniphum

SubgenusHymenanthes
SectionPontica
SubsectionTaliensia

In cultivation since: 0
First described: 1917, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Kingdon-Ward
Frank Kingdon-Ward
(1885-1958)
England, Manchester
Botanical-short: Kingdon-Ward
).

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Rhododendron aganniphum var aganniphum
aganniphum var aganniphum Glaucoplepum GroupNo pictures yet. Read more

aganniphum var flavorufum

SubgenusHymenanthes
SectionPontica
SubsectionTaliensia

In cultivation since: 1917
First described: 0, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
).

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Rhododendron aganniphum var flavorufum
aganniphum var glaucopeplum Synonym for aganniphum var aganniphum
aganniphum var schizopeplum Synonym for aganniphum var aganniphum
agapetum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Ward
Lester Frank Ward
(1841-1913)
USA, Joliet, Illinois
Botanical-short: Ward
)
Synonym for kyawii
agastum See agastum var pennivenium

x agastum

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 0
First described: 0, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
).

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Rhododendron agastum
agastum var pennivenium Synonym for tanastylum var pennivenium
agathodaemonisNo pictures yet. Read more
agathodaemonis Synonym for herzogii
agetum See neriiflorum ssp agetum
agglutinatum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
See phaeochrysum var agglutinatum
aiolopeplum Synonym for phaeochrysum var levistratum
aiolosalpinx   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Farrer
Reginald John Farrer
(1880-1920)
Clapham, North Yorkshire, England
Botanical-short: Farrer
)
Synonym for stewartianum
aiolosalpinx   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Farrer
Reginald John Farrer
(1880-1920)
Clapham, North Yorkshire, England
Botanical-short: Farrer
)
See stewartianum var aiolosalpinx
aischropeplum Synonym for roxieanum var roxieanum
aishropeplum Synonym for roxieanum var roxieanum
aizoides See sanguineum ssp aizoides

alabamense

SubgenusPentanthera
SectionPentanthera
SubsectionPentanthera

In cultivation since: 1922
First described: 1921, (Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
, E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
).

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Rhododendron alabamense
alabamense (Azalea) Synonym for alabamense
alba See nudiflora var alba
alba See periclymenoides var alba
albertsenianumNo pictures yet. Read more
albicaule Synonym for fortunei ssp fortunei
albidum See roseum f albidum
albiflora See rhodora f albiflora
albiflora (Azalea)   (described by: Kuntze
Carl Ernst Otto Kuntze
(1843-1907)
Germany, Leipzig
Botanical-short: Kuntze
)
Synonym for albiflorum var albiflorum
albiflorum See reticulatum var albiflorum
albiflorum See rhombicum var albiflorum
albiflorum See serpyllifolium var albiflorum
albiflorum See canadense f albiflorum
albiflorum See citrinum f albiflorum
albiflorum See schlippenbachii f albiflorum
albiflorum See dauricum var albiflorum
albiflorum See mucronulatum var albiflorum
albiflorum See simsii var albiflorum
Albiflorum Lanciniatum Synonym for hirsutum

albiflorum var albiflorum

SubgenusCandidastrum
Section
Subsection

In cultivation since: 1828
First described: 1834, (Hook. f.
Sir Joseph Dalton Hooker
(1817-1911)
England, Suffolk
Botanical-short: Hook. f.
).

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Rhododendron albiflorum var albiflorum
albiflorum var warreniiNo pictures yet. Read more
albipetalum See temenium ssp albipetalum
albomentosum See arboreum ssp delavayi var albomentosum
alborugosumNo pictures yet. Read more

albrechtii

SubgenusPentanthera
SectionSciadorhodion
Subsection

In cultivation since: 1914
First described: 1871, (Maxim.
Carl Johann Maximowicz
(1827-1891)
Russia, Tula
Botanical-short: Maxim.
).

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Rhododendron albrechtii
albrechtii (Azalea) Synonym for albrechtii
album See arboreum ssp cinnamomeum var roseum f album
album See nudiflorum f album
album See periclymenoides f album
album See serpyllifolium f album
album See vaseyi f album
albumNo pictures yet. Read more
album Synonym for albiflorum
album Synonym for aequabile
album Synonym for zollingeri
album See anthopogon ssp anthopogon var album
album See kesangiae var album
album See maximum var album
album See nudiflorum var album
album See arboreum var album
album See glaucophyllum var album
album See lepidotum var album
album See thomsonii var album
album See vaseyi var album
algarvense Synonym for ponticum
alpicola   (described by: Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
 & E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
)
Synonym for nivale ssp boreale
alpinum See saruwagedicum var alpinum
alternansNo pictures yet. Read more

alticola

SubgenusRhododendron
SectionVireya
SubsectionEuvireya

In cultivation since: 0
First described: 1960, (Sleumer
Hermann Otto Sleumer
(1906-1983)
Netherlands
Botanical-short: Sleumer
).

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Rhododendron alticola
alticolum Synonym for alticola
alutaceum See alutaceum var alutaceum

alutaceum var alutaceum

SubgenusHymenanthes
SectionPontica
SubsectionTaliensia

In cultivation since: 1917
First described: 0, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
).

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Rhododendron alutaceum var alutaceum
alutaceum var iodesNo pictures yet. Read more

alutaceum var russotinctum

SubgenusHymenanthes
SectionPontica
SubsectionTaliensia

In cultivation since: 1917
First described: 0, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
).

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Rhododendron alutaceum var russotinctum
amabileNo pictures yet. Read more
amagiana (Azalea) Synonym for amagianum

amagianum

SubgenusTsutsusi
SectionBrachycalyx
Subsection

In cultivation since: 1930
First described: 1930, (Makino
Tomarito Makino
(1862-1957)
Japan, Sakawa
Botanical-short: Makino
).

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Rhododendron amagianum
amagianum See degronianum ssp heptamerum var heptamerum f amagianum
amagianum See metternichii f amagianum
amagianum See weyrichii var amagianum
amakusaenseNo pictures yet. Read more
amakusaense See viscistylum var amakusaense
amamiense   (described by: Ohwi
Jisaburo Ohwi
(1905-1977)
Japan
Botanical-short: Ohwi
)
Synonym for latoucheae var latoucheae
amandumNo pictures yet. Read more
amanoi See scabrum ssp amanoi
amaurophyllum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for saluenense ssp saluenense

ambiguum

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 1904
First described: 1911, (Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
).

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Rhododendron ambiguum

amesiae

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 0
First described: 1913, (Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
, E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
).

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Rhododendron amesiae
amoena (Azalea) Synonym for obtusum
amoenum See kiusianum var amoenum
amoenum See indicum var amoenum
amundsenianumNo pictures yet. Read more
anagalliflorumNo pictures yet. Read more
andersonii See variolosum var andersonii
angiense See culminicola var angiense
angulatumNo pictures yet. Read more
angustifolium See hirsutum f angustifolium
angustifolium See metternichi var pentamerum f angustifolium
angustifolium See stenophyllum ssp angustifolium
ankaii See degronianum var ankaii

annae ssp annae

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 1924
First described: 1898, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron annae ssp annae
annae ssp laxiflorumNo pictures yet. Read more
annamense   (described by: Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
)
Synonym for simsii var simsii
anthodendron nudiflorum Synonym for periclymenoides
anthodendron ponticum Synonym for luteum
anthodendron viscosum Synonym for viscosum
anthopogon See anthopogon ssp anthopogon

anthopogon ssp anthopogon

SubgenusRhododendron
SectionPogonanthum
Subsection

In cultivation since: 1820
First described: 1821, (G.Don
George Don
(1798-1856)
Scotland, Forfarshire
Botanical-short: G.Don
).

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Rhododendron anthopogon ssp anthopogon
anthopogon ssp anthopogon var album Synonym for anthopogon ssp anthopogon

anthopogon ssp hypenanthum

SubgenusRhododendron
SectionPogonanthum
Subsection

In cultivation since: 0
First described: 1979, (Cullen
James Cullen
(0-0)
Botanical-short: Cullen
).

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Rhododendron anthopogon ssp hypenanthum
anthopogon var haemonium   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Cooper
Roland Edgar Cooper
(1890-1962)
Botanical-short: Cooper
)
Synonym for anthopogon ssp anthopogon
anthopogonoidesNo pictures yet. Read more
anthopogonoides ssp hoiNo pictures yet. Read more

anthosphaerum

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 1910
First described: 1912, (Diels
Dr. Friedrich Ludwig Emil Diels
(1874-1945)
Germany, Hamburg
Botanical-short: Diels
).

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Rhododendron anthosphaerum
anthosphaerum var eritimum Synonym for anthosphaerum

anwheiense

SubgenusHymenanthes
SectionPontica
SubsectionMaculifera

In cultivation since: 1925
First described: 1925, (E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
).

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Rhododendron anwheiense

aperantum

SubgenusHymenanthes
SectionPontica
SubsectionNeriiflora

In cultivation since: 1919
First described: 1922, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Kingdon-Ward
Frank Kingdon-Ward
(1885-1958)
England, Manchester
Botanical-short: Kingdon-Ward
).

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Rhododendron aperantum
aperantum var subpilosum Synonym for aperantum
apiculatum   (described by: Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
 & E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
)
Synonym for concinnum
apienseNo pictures yet. Read more

apoanum

SubgenusRhododendron
SectionVireya
SubsectionMalayovireya

In cultivation since: 0
First described: 0.

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Rhododendron apoanum
apodectum See dichroanthum ssp apodectum
appropinquans See floccigerum ssp appropinquans
apricumNo pictures yet. Read more
apricum var falcinellum Synonym for rufulum
arachnoideum See glischroides var arachnoideum

araiophyllum

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 1917
First described: 1917, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
).

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Rhododendron araiophyllum
araiophyllum ssp lapidosumNo pictures yet. Read more
araliiforme   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for vernicosum
arbore (Azalea) Synonym for arborescens

arborescens

SubgenusPentanthera
SectionPentanthera
SubsectionPentanthera

In cultivation since: 1922
First described: 1824, (Torr.
John Torrey
(1796-1873)
USA, New York
Botanical-short: Torr.
).

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Rhododendron arborescens
arborescens (Azalea) Synonym for arborescens
arborescens var richardsonii Synonym for arborescens
arborescens var richardsonii (Azalea) Synonym for arborescens var richardsonii
arboreum f albumNo pictures yet. Read more
arboreum f. roseum ()   (described by: Tagg
Harry F. Tagg
(1874-1933)
Scotland, Edinburgh
Botanical-short: Tagg
)
Synonym for arboreum ssp cinnamomeum var roseum

arboreum Kingianum Group

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 0
First described: 1899, (Watson
William Watson
(0-0)
Botanical-short: Watson
).

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Rhododendron arboreum Kingianum Group

arboreum ssp arboreum

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 1814
First described: 1805, (Sm.
James Edward Smith
(1759-1828)
England, Norwich
Botanical-short: Sm.
).

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Rhododendron arboreum ssp arboreum

arboreum ssp cinnamomeum

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 0
First described: 1930, (Lindl.
John Lindley
(1799-1865)
England, Norwich
Botanical-short: Lindl.
, Tagg
Harry F. Tagg
(1874-1933)
Scotland, Edinburgh
Botanical-short: Tagg
).

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Rhododendron arboreum ssp cinnamomeum

arboreum ssp cinnamomeum var cinnamomeum

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 0
First described: 1930, (Lindl.
John Lindley
(1799-1865)
England, Norwich
Botanical-short: Lindl.
).

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Rhododendron arboreum ssp cinnamomeum var cinnamomeum

arboreum ssp cinnamomeum var roseum

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 0
First described: 1929, (Lindl.
John Lindley
(1799-1865)
England, Norwich
Botanical-short: Lindl.
).

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Rhododendron arboreum ssp cinnamomeum var roseum
arboreum ssp cinnamomeum var roseum f album Synonym for Sir Charles Lemon

arboreum ssp delavayi

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 1889
First described: 1889, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron arboreum ssp delavayi
arboreum ssp delavayi var albomentosumNo pictures yet. Read more
arboreum ssp delavayi var delavayiNo pictures yet. Read more
arboreum ssp delavayi var peramoenumNo pictures yet. Read more
arboreum ssp kingianum Synonym for arboreum Kingianum Group
arboreum ssp nilagiricumNo pictures yet. Read more

arboreum ssp zeylanicum

SubgenusHymenanthes
SectionPontica
SubsectionArborea

In cultivation since: 1830
First described: 0, (Booth
William Beattie Booth
(0-0)
Botanical-short: Booth
, Tagg
Harry F. Tagg
(1874-1933)
Scotland, Edinburgh
Botanical-short: Tagg
).

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Rhododendron arboreum ssp zeylanicum
arboreum ssp zeylanicum var kingianum Synonym for arboreum Kingianum Group
arboreum var album Synonym for arboreum ssp cinnamomeum var roseum
archboldianumNo pictures yet. Read more
arenicolaNo pictures yet. Read more
arfakianumNo pictures yet. Read more
argenteum   (described by: Hook. f.
Sir Joseph Dalton Hooker
(1817-1911)
England, Suffolk
Botanical-short: Hook. f.
)
Synonym for grande

argipeplum

SubgenusHymenanthes
SectionPontica
SubsectionBarbata

In cultivation since: 1859
First described: 1916, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Cooper
Roland Edgar Cooper
(1890-1962)
Botanical-short: Cooper
).

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Rhododendron argipeplum
argyi Synonym for mucronatum var mucronatum

argyrophyllum ssp argyrophyllum

SubgenusHymenanthes
SectionPontica
SubsectionArgyrophylla

In cultivation since: 1904
First described: 1886, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron argyrophyllum ssp argyrophyllum
argyrophyllum ssp hejiangense Synonym for insigne var hejiangense

argyrophyllum ssp hypoglaucum

SubgenusHymenanthes
SectionPontica
SubsectionArgyrophylla

In cultivation since: 1900
First described: 0, (Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
).

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Rhododendron argyrophyllum ssp hypoglaucum

argyrophyllum ssp nankingense

SubgenusHymenanthes
SectionPontica
SubsectionArgyrophylla

In cultivation since: 1932
First described: 0, (Cowan
Richard S. Cowan
(1921-1997)
USA, Crawfordsville, Indiana
Botanical-short: Cowan
).

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Rhododendron argyrophyllum ssp nankingense

argyrophyllum ssp omeiense

SubgenusHymenanthes
SectionPontica
SubsectionArgyrophylla

In cultivation since: 1980
First described: 0, (Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
, E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
).

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Rhododendron argyrophyllum ssp omeiense
argyrophyllum var cupulare   (described by: Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
 & E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
)
Synonym for argyrophyllum ssp argyrophyllum
argyrophyllum var leiandrum   (described by: Hutch.
John Hutchinson
(1884-1972)
England, Blindburn
Botanical-short: Hutch.
)
Synonym for argyrophyllum ssp nankingense
aristatum Synonym for barbatum

arizelum

SubgenusHymenanthes
SectionPontica
SubsectionFalconera

In cultivation since: 1917
First described: 1920, (Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
, Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
).

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Rhododendron arizelum
arizelum var rubicosum Synonym for arizelum

armitii

SubgenusRhododendron
SectionVireya
SubsectionEuvireya

In cultivation since: 0
First described: 1895, (F.M.Bailey
Frederick Manson Bailey
(1827-1915)
Australia
Botanical-short: F.M.Bailey
).

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Rhododendron armitii
aromaticum Synonym for anthopogon ssp anthopogon
artosquamatum   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for oreotrephes
arunachalenseNo pictures yet. Read more
ashleyi   (described by: Coker
William Chambers Coker
(1872-1953)
Hartsville, South Carolina, USA
Botanical-short: Coker
)
Synonym for maximum
asmenistum Synonym for sanguineum ssp sanguineum var cloiophorum
asmenistum See cloiophorum var asmenistum
asparagoides Synonym for zoelleri
asperrimumNo pictures yet. Read more
asperulumNo pictures yet. Read more
asperumNo pictures yet. Read more
assamicum Synonym for formosum var formosum
asteium   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for eudoxum var mesopolium

asterochnoum var asterochnoum

SubgenusHymenanthes
SectionPontica
SubsectionFortunea

In cultivation since: 1990
First described: 1921, (Diels
Dr. Friedrich Ludwig Emil Diels
(1874-1945)
Germany, Hamburg
Botanical-short: Diels
).

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Rhododendron asterochnoum var asterochnoum
asterochnoum var brevipedicellatumNo pictures yet. Read more
astrapiae Synonym for konori var konori
astrocalyx   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for wardii var wardii
atentsiense Synonym for dendricola
atjehense Synonym for irroratum ssp kontumense
atlantica (Azalea) Synonym for atlanticum

atlanticum

SubgenusPentanthera
SectionPentanthera
SubsectionPentanthera

In cultivation since: 1922
First described: 1921, (Rehder
Alfred Rehder
(1863-1949)
Germany
Botanical-short: Rehder
, E.H. Wilson
Ernest Henry Wilson
(1876-1930)
England, Chipping Campden
Botanical-short: E.H. Wilson
).

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Rhododendron atlanticum
atlanticum f confusum Synonym for atlanticum
atlanticum f luteo-album Synonym for atlanticum
atlanticum f neglectum Synonym for atlanticum
atlanticum f tomolobum Synonym for atlanticum
atrokermesianum See meddianum var atrokermesinum
atropunicumNo pictures yet. Read more
atropurpureumNo pictures yet. Read more
atrorubrum Synonym for atrovirens
atrorubrum See sanguineum ssp atrorubrum
atrovirensNo pictures yet. Read more
atrovirens See dauricum var atrovirens
atroviride   (described by: Dunn
Stephen Troyte Dunn Dunn
(0-0)
Botanical-short: Dunn
)
Synonym for concinnum
aucklandii   (described by: Hook. f.
Sir Joseph Dalton Hooker
(1817-1911)
England, Suffolk
Botanical-short: Hook. f.
)
Synonym for griffithianum
aucubaefolium   (described by: Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
)
Synonym for stamineum
augustinii f grandiflora Synonym for augustinii ssp augustinii
augustinii f hardyii Synonym for augustinii ssp hardyi
augustinii f subglabra Synonym for augustinii ssp chasmantum

augustinii ssp augustinii

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 1890
First described: 1889, (Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
).

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Rhododendron augustinii ssp augustinii
augustinii ssp chasmanthum f rubrum Synonym for augustinii ssp rubrum

augustinii ssp chasmantum

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 1919
First described: 1912, (Diels
Dr. Friedrich Ludwig Emil Diels
(1874-1945)
Germany, Hamburg
Botanical-short: Diels
).

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Rhododendron augustinii ssp chasmantum

augustinii ssp hardyi

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 1949
First described: 1974, (Davidian
H.H. Davidian
(0-0)
Botanical-short: Davidian
).

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Rhododendron augustinii ssp hardyi

augustinii ssp rubrum

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 0
First described: .

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Rhododendron augustinii ssp rubrum
augustinii var azureus Synonym for augustinii ssp augustinii
augustinii var yui Synonym for augustinii ssp augustinii
augustissimum See borneense ssp angustissimum
augustissimum See quadrasianum ssp augustissimum
aurantiaca (Azalea)   (described by: Dietr
Albert Gottfried Dietrich
(1795-1856)
Germany, Danzig (now Poland)
Botanical-short: Dietr
)
Synonym for calendulaceum
aurantiacum See calendulaceum var aurantiacum
aureolum See citriniflorum ssp aureolum
aureolum   (described by: Cowan
Richard S. Cowan
(1921-1997)
USA, Crawfordsville, Indiana
Botanical-short: Cowan
)
Synonym for citriniflorum var horaeum
aureum Synonym for aureum var aureum
aureum See japonicum f aureum

aureum var aureum

SubgenusHymenanthes
SectionPontica
SubsectionPontica

In cultivation since: 1776
First described: 1775, (Georgi
Johann Gottlieb Georgi
(1729-1802)
Germany
Botanical-short: Georgi
).

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Rhododendron aureum var aureum
aureum var hypopytisNo pictures yet. Read more

auriculatum

SubgenusHymenanthes
SectionPontica
SubsectionAuriculata

In cultivation since: 1901
First described: 1899, (Hemsl.
William Botting Hemsley
(1843-1924)
England, Sussex
Botanical-short: Hemsl.
).

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Rhododendron auriculatum
aurigeranum ssp aurigeranumNo pictures yet. Read more
aurigeranum ssp hirsutumNo pictures yet. Read more

auritum

SubgenusRhododendron
SectionRhododendron
SubsectionTephroplepa

In cultivation since: 1924
First described: 1931, (Tagg
Harry F. Tagg
(1874-1933)
Scotland, Edinburgh
Botanical-short: Tagg
).

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Rhododendron auritum
australe   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for leptothrium
australe See nivale ssp australe
austrina (Azalea) Synonym for austrinum

austrinum

SubgenusPentanthera
SectionPentanthera
SubsectionPentanthera

In cultivation since: 0
First described: 0.

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Rhododendron austrinum
austrokiusianum Synonym for kiusianum var kiusianum
autantia See citriniflorum ssp aureolum
autumnalis See pontica var autumnalis
axillare See malayanum var axillare
axium See selense ssp axium
axium   (described by: Balf.f.
Isaac Bayley Balfour
(1853-1922)
Scotland, Edinburgh
Botanical-short: Balf.f.
 & Forrest
George Forrest
(1873-1932)
Scotland, Falkirk
Botanical-short: Forrest
)
Synonym for selense ssp selense
azaleastrum albiflorum   (described by: Rydb.
Per Axel Rydberg
(1860-1931)
Sweden, Västergötland
Botanical-short: Rydb.
)
Synonym for albiflorum var albiflorum
azaleoides Synonym for ponticum
azureus See augustinii var azureus

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Rhododendron Species   Hirsutum.info     Project started 03 June 2009