Rambling shrub with long ± arching branches. Calyx forming a large deep orange disc c. 1.8-2.2 cm across at anthesis, slightly concave, almost orbicular. Corolla deep orange, tube 1.8-2 cm long, curving, gradually ampliate; lower lobe c. 5 mm long, triangular; margins of this lobe and other small lobes strongly revolute. Stamens and style exserted, pale orange; filaments patently pubescent. Usual colour of "Chinese hat" shrub.