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Peter Norris, enabling the use of The Rhododendron Handbook 1998
New article for Trees and Shrubs Online.
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'Rhododendron yungningense' from the website Trees and Shrubs Online (treesandshrubsonline.
Erect shrub, 1(–1.3) m. Leaves (0.6–)0.8–2 × (2–)4–8 mm, elliptic to broadly elliptic or oblong, apex acute to obtuse, clearly or obscurely mucronate, lower surface covered with uniformly fawn to ferrugineous touching scales. Flowers 3–4(–6) per inflorescence; calyx 2–3 mm, lobes sometimes irregular, strap-shaped or deltoid; corolla deep purplish blue, rose-lavender or rarely white, broadly funnel-shaped, outer surface glabrous or minutely puberulous, 11–14(–17) mm; stamens (8–)10, about as long as corolla; style about as long as stamens, glabrous or hairy at base. Flowering April-May. Royal Horticultural Society (1997).
Distribution China W Yunnan, SW Sichuan
Habitat 3,200–4,300 m
RHS Hardiness Rating H6
Conservation status Vulnerable (VU)
R. yungningense may be distinguished from the allied R. orthocladum by its broader leaves. Royal Horticultural Society (1997)