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Erect shrub, 1(-1.3)m. Leaves (0.6-)0.8-2 x (2-)4-8mm, 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 2-3mm, 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.
Distribution China (W Yunnan, SW Sichuan).
RHS Hardiness H4a-b.
Taxonomic note (incl. R. glomerulatum Hutch.)
R. yungningense may be distinguished from the allied R. orthocladum by its broader leaves.