Rhododendron coxianum Davidian

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'Rhododendron coxianum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-coxianum/). Accessed 2020-03-31.

Genus

Other species in genus

Glossary

calyx
(pl. calyces) Outer whorl of the perianth. Composed of several sepals.
setose
Bristly.
type specimen
A herbarium specimen cited in a taxonomic account to define a particular species or other taxon.

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Credits

New article for Trees and Shrubs Online.

Recommended citation
'Rhododendron coxianum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/rhododendron/rhododendron-coxianum/). Accessed 2020-03-31.

Upright shrub, 1-3 m; young shoots setose. Leaves 5.5-11.5 x 1.5-3 cm, oblanceolate, margin not setose, upper surface bristly (in the type specimen), midrib impressed; lower surface glaucous, the scales unequal, brown, 2-6 x their own diameter apart. Flowers c.3, in a loose terminal inflorescence; calyx lobes 4-5 mm, ciliate; corolla white, without or with a faint yellow basal blotch, tubular-funnel-shaped, c.75 mm, outer surface scaly, pubescent towards base; stamens 10; ovary densely scaly, tapering into the style that is scaly below. Flowering April-May. Royal Horticultural Society (1997)

Distribution  India Arunachal Pradesh

Habitat 1,650 m

RHS Hardiness Rating H3

Conservation status Critically endangered (CR)

This species may be a variant of R. formosum but is distinguished by the larger calyx, etc. There is some doubt about the status of cultivated plants as the leaves are significantly less setose than those of the type specimen. Royal Horticultural Society (1997)


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