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Peter Norris, enabling the use of The Rhododendron Handbook 1998
New article for Trees and Shrubs Online.
Recommended citation
'Rhododendron wallichii' from the website Trees and Shrubs Online (treesandshrubsonline.
Shrub, 1–4.5 m. Leaves 7–14 × 3.5–6.5 cm, elliptic to ovate, glabrous above, with a sparse discontinuous indumentum of dark brown fasciculate hairs, to more or less glabrous. Flowers 5–8, in a lax truss, white to pale mauve or lilac, with or without flecks, funnel-campanulate, nectar pouches lacking, 25–50 mm; ovary almost glabrous, style glabrous. Flowering April-May. Royal Horticultural Society (1997).
Distribution Bhutan China S Tibet India Sikkim, Bengal Nepal E
Habitat 3,000–4,000 m
RHS Hardiness Rating H6
Conservation status Least concern (LC)
White-flowered forms with leaves more or less glabrous beneath have been referred to R. heftii Davidian. This species is closely allied to R. campanulatum and treated by some as a variety of that species. Natural hybrids between R. wallichii and R. arboreum are found in cultivation. Royal Horticultural Society (1997).