Shrub with spreading, lenticellate branches. Leaves entire, 1-3 cm long, 2-8 mm broad (on fertile branches), lanceolate to narrowly oval, almost sessile. Inflorescence dense, of almost capitate appearance at the ends of branchlets, the leafless panicles arising from subterminal (terminal) and uppermost lateral buds only. Calyx 1-2 mm long, more or less distinctly 4-toothed. Corolla lilac, tube cylindric, 8-10 mm long, lobes c. half the length, oval. Capsule ovoid to cylindric, c. 1 cm long, 4 mm in diameter, slightly bent, acuminate, opening into 2 halves.