Shrub or small tree; young shoots glabrous. Leaves in whorls of up to three, at the ends of the branches, 3.5–5 × 2.5–4 cm, rhombic, apex acute, lower surface sparsely pilose, more densely so over lower part of midrib; petioles densely lanate. Pedicels covered with brown pubescent hairs. Flowers 1–2, appearing before or with the leaves; calyx minute; corolla rose-purple, funnel-campanulate, 20–30 mm; stamens 8–10; ovary densely pale brown villose, style glabrous. Flowering May. Royal Horticultural Society (1997)
RHS Hardiness Rating H4
Conservation status Least concern (LC)
Differs from the closely allied R. nudipes in the densely lanate petioles, etc. and is the only form of this species in cultivation.