 
 
Rhododendron ×coriifolium
buxifolium
x rugosum
Height - 5m - terrestrial
Leaves - ovate-elliptic - 5 x 2.5cm strongly impressed
midrib and lateral veins
Flowers - cylindrical - 3cm up to 12 per umbel
Location - Malaysia: Sabah: Mt. Kinabalu 3050-3200m
Epithet - "leathery leaves"
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Rhododendron ×keditii
rugosum
x crassifolium
Height - 1m - terrestrial
Leaves - elliptic - 14 x 7cm
Flowers - weakly funnel-shaped - 2.8cm up to 15 per
umbel
Location - known only from landslip site opposite Mesilau
Cave on G.Kinabalu, Sabah - 1900m
Epithet - after Thomas Kedit Lawang who accompanied
many Rhododendron collecting expeditions
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Rhododendron ×nebulicolum
brassii
x versteegii
Height - 2m - terrestrial
Leaves - elliptic - 4.8 x 2.5cm
Flowers - tubular - 4.9cm up to 7 per umbel
Location - New Guinea: Mapenduma District, Lake Habbema
3250 - 3300m
Epithet - frequently found in damp, misty areas
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Rhododendron ×planecostatum
bagobonum
x crassifolium
Height - 1m - epiphytic or terrestrial
Leaves - elliptic - 5 x 1.8cm
Flowers - cylindrical - 2.5cm - up to 6 per umbel
Location - Malaysia: Sabah: Mt. Kinabalu and the Crocker
Range 1300 - 1700m
Epithet - "with a flat midrib"
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Rhododendron ×sarcodes
bagobonum
x javanicum ssp. schadenbergii
Height - 0.8m - terrestrial
Leaves - elliptic - 5.0 x 1.8cm
Flowers - cylindrical - 3cm - up to 4 per umbel
Location - Philippines: Mindanao: Mt. Apo 1800m
Epithet - alluding to the fleshy nature of the flowers
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Rhododendron ×sheilae
abietifolium
x buxifolium
Height - 2m - terrestrial
Leaves - narrowly elliptic - 4.0 x 1.3cm
Flowers - tubular - 3.2cm - up to 6 per umbel
Location - Malaysia: Sabah: Mt. Kinabalu 3200 - 3700m
Epithet - after Sheila Collenette
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Rhododendron ×silvicolum
cuneifolium
x ericoides
Height - to 3m - terrestrial
Leaves - linear - 1.1 x 0.2cm
Flowers - cylindrical - 1.5cm - solitary or in pairs
Location - Malaysia: Sabah: Mt. Kinabalu 2800 - 3200m
Epithet - "forest dweller"
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Rhododendron durionifolium x Rhododendron stenophyllum
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Rhododendron herzogii x Rhododendron aurigeranum
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Rhododendron konori x Rhododendron zoelleri
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Rhododendron laetum x Rhododendron zoelleri
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Rhododendron macgregoriae x Rhododendron inconspicuum
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Rhododendron macgregoriae x Rhododendron inundatum
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Rhododendron rubineiflorum x Rhododendron inconspicuum
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