Rhododendron Species

 
Showing only valid species-names (= 27) starting with O
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oblancifoliumNo pictures yet. Read more
obscurumNo pictures yet. Read more

x obtusum

SubgenusTsutsusi
Section
Subsection

In cultivation since: 0
First described: 0.

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Rhododendron obtusum

occidentale

SubgenusPentanthera
SectionPentanthera
SubsectionPentanthera

In cultivation since: 1851
First described: 1876, (A.Gray
Asa Gray
(1810-1888)
Sauquoit, New York, USA
Botanical-short: A.Gray
).

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Rhododendron occidentale

ochraceum

SubgenusHymenanthes
SectionPontica
SubsectionMaculifera

In cultivation since: 1995
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 ochraceum

oldhamii

SubgenusTsutsusi
SectionTsutsusi
Subsection

In cultivation since: 1918
First described: 1870, (Maxim.
Carl Johann Maximowicz
(1827-1891)
Russia, Tula
Botanical-short: Maxim.
).

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Rhododendron oldhamii
oliganthumNo pictures yet. Read more

oligocarpum

SubgenusHymenanthes
SectionPontica
SubsectionMaculifera

In cultivation since: 0
First described: 0, (Fang
M.Y. Fang
(0-0)
Botanical-short: Fang
).

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Rhododendron oligocarpum

ombrochares

SubgenusHymenanthes
SectionPontica
SubsectionIrrorata

In cultivation since: 0
First described: 0, (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 ombrochares
opulentumNo pictures yet. Read more

orbiculare ssp cardiobasis

SubgenusHymenanthes
SectionPontica
SubsectionFortunea

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

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Rhododendron orbiculare ssp cardiobasis

orbiculare ssp orbiculare

SubgenusHymenanthes
SectionPontica
SubsectionFortunea

In cultivation since: 1904
First described: 1877, (Decne.
Joseph Decaisne
(1807-1882)
Belgium, Brussels
Botanical-short: Decne.
).

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Rhododendron orbiculare ssp orbiculare

orbiculatum

SubgenusRhododendron
SectionVireya
SubsectionEuvireya

In cultivation since: 0
First described: 1912, (Ridl.
Henry Nicholas Ridley
(1885-1956)
England, Norfolk
Botanical-short: Ridl.
).

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Rhododendron orbiculatum
oreadumNo pictures yet. Read more
oreites var chloropsNo pictures yet. Read more
oreites var oreitesNo pictures yet. Read more
oreodoxa var adenostylosumNo pictures yet. Read more

oreodoxa var fargesii

SubgenusHymenanthes
SectionPontica
SubsectionFortunea

In cultivation since: 1901
First described: 1886, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron oreodoxa var fargesii

oreodoxa var oreodoxa

SubgenusHymenanthes
SectionPontica
SubsectionFortunea

In cultivation since: 1901
First described: 1886, (Franch.
Adrien René Franchet
(1834-1900)
France
Botanical-short: Franch.
).

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Rhododendron oreodoxa var oreodoxa
oreodoxa var shensienseNo pictures yet. Read more
oreogenumNo pictures yet. Read more

oreotrephes

SubgenusRhododendron
SectionRhododendron
SubsectionTriflora

In cultivation since: 1910
First described: 1914, (W.W.Sm.
William Wright Smith
(1875-1956)
Scotland, UK
Botanical-short: W.W.Sm.
).

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Rhododendron oreotrephes

orthocladum var microleucum

SubgenusRhododendron
SectionRhododendron
SubsectionLapponica

In cultivation since: 0
First described: .

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Rhododendron orthocladum var microleucum

orthocladum var orthocladum

SubgenusRhododendron
SectionRhododendron
SubsectionLapponica

In cultivation since: 1913
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 orthocladum var orthocladum
osuzuyamenseNo pictures yet. Read more

ovatum

SubgenusAzaleastrum
SectionAzaleastrum
Subsection

In cultivation since: 1900
First described: 1870, (Maxim.
Carl Johann Maximowicz
(1827-1891)
Russia, Tula
Botanical-short: Maxim.
).

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Rhododendron ovatum
oxycoccoidesNo pictures yet. Read more

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Rhododendron Species   Hirsutum.info     Project started 03 June 2009