 
 
Rhododendron gardenia
Section Phaeovireya
Height - to 2.5m - terrestrial
Leaves - elliptic or broadly-elliptic - 15cm x 9cm
Flowers - tubular-funnel-shaped - 11cm - up to 4 per
umbel - scented
Location - Indonesia: W.New Guinea: Bele River Valley,
E. of Baliem River Valley;
Papua New Guinea: Sepik River region, Telefomin, Star Mts. - 1400-2300m
Epithet - after the genus Gardenia which also
bears white, scented flowers.
The clone 'Jennifer Jean' is named for the daughter of the collector of this plant and was granted an Award of Merit by the Royal Horticultural Society in 2007.
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Rhododendron gaultheriifolium
Section Discovireya
Height - to 5m - terrestrial
Leaves - ovate - 1.0cm x 0.7cm
Flowers - tubular - 1.7cm - solitary or in pairs
Location - Indonesia: W.New Guinea: Oranje Mts, Mt.
Doorman;
Papua New Guinea: Star Mts, E & W Highlands - 2900-4150m
Epithet - "with leaves like a Gaultheria sp."
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Rhododendron glabriflorum
Section Euvireya: Subsection Euvireya
Height - 3m - terrestrial
Leaves - elliptic - 9 x 4cm
Flowers - tubular-campanulate - 5.2cm - up to 22 per
umbel
Location - Indonesia: W.New Guinea: Wichmann Mts, Lake
Habbema - 3000-3200m
Epithet - "smooth flower", i.e. without hairs
or scales
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Rhododendron goodenoughii
Section Euvireya: Subsection Solenovireya
Height - 2m - terrestrial or epiphytic
Leaves - broadly elliptic - 10 x 6cm
Flowers - trumpet-shaped, curved - 7.5cm - up to 22
per umbel - scented
Location - Papua New Guinea: Goodenoughii Island, Mt.
Goodenoughii endemic - 800-1500m
Epithet - after place of origin
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Rhododendron gracilentum
Section Euvireya: Subsection Linnaeopsis
Height - 0.6m - terrestrial or epiphytic
Leaves - narrowly ovate - 1.8 x 0.6cm
Flowers - cylindrical - 3.3cm - mostly solitary
Location - Papua New Guinea: Mt.Musgrave, Mt.Kaindi
& Edie Creek - 2000-2745m
Epithet - alluding to slender leaves
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