Malodorous shrub to 3 m high, new growth and leaf-axils minutely pubescent or glabrescent. Leaves narrow-elliptic to lanceolate, mostly 2–7 cm long, 1–3 cm wide, glabrous, apex acute to acuminate, base attenuate, margins more or less entire; petiole to 10 mm long. Inflorescence terminal, congested, panicle-like. Flowers sessile or with pedicels to 10 mm long; calyx tubular, 3–6 mm long, lobes acute, 1–2 mm long; corolla 18–25 mm long, greenish-yellow, tube 1–1.5 mm diam. at base, 3–4 mm diam. at apex, lobes lanceo-late, 3.5–7 mm long, hairy outside, expanding in the evening; stamens inserted near middle of tube; filaments 6–7 mm long; style 17–18 mm long. Berry more or less ovoid, 8–15 mm long, black; seeds c. 10, angular, 3–5 mm long, dark brown. Flowers mainly spring–autumn.