Rhododendron crassifolium Stapf

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New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron crassifolium' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-crassifolium/). Accessed 2020-12-02.

Genus

Other species in genus

Glossary

dimorphic
Occurring in two forms.

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron crassifolium' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-crassifolium/). Accessed 2020-12-02.

Shrub to 2.5 m, young stems smooth, inconspicuously covered in brown scales. Leaves 8-14 x 4-8 cm, ovate, obovate or oblong with a broad blunt to rounded apex, the margin smooth somewhat irregular, flat or slightly revolute, the base cordate, rounded or more rarely wedge-shaped. Upper surface when young silvery scaly, the scales turning brown before quickly falling off, the mature surface characteristically puckered, the midrib very large and conspicuous, very strongly raised, lateral veins 8-12 pairs hardly raised, spreading at a wide angle; underneath the midrib only slightly raised, lateral veins smooth, the scales small, well spaced, disc-shaped and irregularly lobed with small centres. Flowers 6-30 in each umbel, semi-erect to half-hanging; calyx a low ring; corolla mostly pink to red but rarely recorded as orange and white, funnel-shaped, sometimes with the lobe sides attractively reflexed, 2.3-3.5 x 4-5.2 cm, glabrous outside; stamens 10, conspicuously alternating long and short and regularly distributed around the mouth of the flower; ovary glabrous, style glabrous. Royal Horticultural Society (1997)

Distribution  BruneiIndonesia Borneo Malaysia Borneo, Sabah, Sarawak

Habitat 1,200-2,200 m

RHS Hardiness Rating H2

Conservation status Least concern (LC)

Distinctive with its broad blunt leaves and clearly dimorphic stamens. It is an easily grown species but rarely looks happy confined to a pot. Royal Horticultural Society (1997)