Rhododendron polyanthemum Sleumer

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'Rhododendron polyanthemum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-polyanthemum/). Accessed 2020-10-25.

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New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron polyanthemum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-polyanthemum/). Accessed 2020-10-25.

Shrub or small tree to 7 m, epiphytic or terrestrial; young stems at first with a covering of rusty brown dendroid scales, later smooth. Leaves 8-13 x 5-8 cm, broadly elliptic, the apex obtuse, rounded or apiculate, the margin entire and flat, the base broadly tapering to rounded; upper surface at first white-scaly, then brown but quickly becoming glabrous, the midrib flat, 6-8 pairs of lateral veins not raised or impressed; the lower surface with the midrib slightly raised, lateral veins not raised, the scales brown, dendroid, easily removed but not standing on raised epidermal tubercles. Flowers 25-30 per umbel, held semi-erect to horizontal; calyx a low scaly ring; corolla bright orange or pinkish orange with a yellow eye, very powerfully and sweetly scented, narrowly funnel-shaped, 3-3.5 x 4-5 cm, laxly covered in scales outside; stamens 10, roughly arranged in two groups on either side of the flower; ovary hairy, the style hairy near the base, glabrous in the upper part. Royal Horticultural Society (1997)

Distribution  Malaysia Sabah and Northern Sarawak

Habitat 1,300-2,300 m

RHS Hardiness Rating H2

Conservation status Least concern (LC)

A delightful species which can make a magnificent visual display but is so powerfully scented that in forests in the wild it is often the nose which discovers it before the eye. Royal Horticultural Society (1997)

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