Rhododendron robinsonii Ridl.

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'Rhododendron robinsonii' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-robinsonii/). Accessed 2020-05-28.

Genus

Other species in genus

Glossary

glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
ovary
Lowest part of the carpel containing the ovules; later developing into the fruit.

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron robinsonii' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-robinsonii/). Accessed 2020-05-28.

Shrub to 2.5 m, usually epiphytic, young stems at first finely scaly, quickly glabrescent. Leaves 8-16 x 4-6.5 cm, elliptic or broadly elliptic occasionally lanceolate, the apex acute, often acuminate, the margin entire, slightly revolute, the base broadly to narrowly tapering, sometimes slightly asymmetric; the upper surface with a strongly raised midrib in the basal half, the laterals 5-10 pairs only slightly raised or smooth, very finely scaly at first, quickly glabrescent; the lower surface with the midrib raised throughout its length, the laterals rather obscure, scales very small, brown, rounded to lobed. Umbels 4-12 flowered, erect to half-hanging; calyx disc-shaped sometimes with low lobes, almost glabrous; corolla yellow variably and sometimes heavily flushed orange, funnel-shaped, 3-3.5 x 3-3.5 cm, glabrous outside; stamens 10, somewhat irregularly arranged in the mouth of the flower; ovary glabrous, or with a few scales, the style completely glabrous. Royal Horticultural Society (1997)

Distribution  Malaysia West (from Perak to Selangor and in the Taiping Hills)

Habitat 1,000-1,800 m

RHS Hardiness Rating H2

Conservation status Least concern (LC)

Distinguished from most forms of the very similar R. brookeanum by its almost glabrous ovary and glabrous filaments. Royal Horticultural Society (1997)


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