Spreading shrub to c. 3 m high, glabrous; branches often horizontal to drooping, sparsely or obscurely tuberculate. Leaves alternate to opposite, lax, usually drooping, narrow-linear, mostly 2–11 cm long, 1–2.5 mm wide, apex acute, margins entire; sessile. Inflorescences 6–8-flowered; pedicels 1–3 mm long, glabrous. Flowers secund on upper side of branches; sepals ovate-lanceolate, 1–1.5 mm long, acute, valvate, glabrous; corolla 3–5 mm long, glabrous outside, with long scattered hairs inside, white, unspotted; stamens long-exserted; ovary and style glabrous. Fruit obloid, 2–3 mm long, 2–2.5 mm wide, compressed, truncate. Flowers mainly Oct.–Jan.