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Shrub or small tree, 1-6m; bark smooth, reddish brown; young shoots glabrous. Leaves 5-13.5 x 2.5-5.5cm, apex rounded, base cordate, upper surface without deeply impressed veins, both surfaces glabrous; petioles very short, 1-5mm. Flowers fleshy, 10-15, in a tight truss, crimson, with conspicuous nectar pouches, tubular-campanulate, 28-35mm; ovary and style glabrous.
RHS Hardiness H4a.
An anomalous species in that it lacks the bristles that characterize the remaining species in the subsection. It was originally considered to be an ally of R. fulgens but it differs in its glabrous leaves.