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Shrub, to 3 m. Leaves 4-7 x 1.5-3 cm, elliptic to obovate, apex obtuse or notched. Flowers single, borne laterally below vegetative buds, crimson broadly funnel-shaped; tube c.15 mm; lobes rotund, c.10 mm; stamens 5. Flowering April-May. Royal Horticultural Society (1997)
Distribution China S Yunnan Laos Vietnam
Habitat c.1,700 m
RHS Hardiness Rating H2
Conservation status Vulnerable (VU)
Some plants in cultivation under this name are referrable to R. leptothrium, from which it may be distinguished by the shape of the corolla. Its status in cultivation is therefore doubtful. Royal Horticultural Society (1997)