A much branched shrub about 60 cm high, with puberulous branchlets. Leaves 4-5 mm long, alternate or opposite, erect-spreading, lanceolate, ovate-or oblong-lanceolate, obtuse, rounded at the base, concave and almost smooth and glabrous above, rugose, sparsely pubescent or glabrous and with conspicuous glands scattered beneath. Flowers terminal, few together. Peduncles about 4 mm long, puberulous or glabrous, subtended by linear bracteoles. Sepals 2 mm long, lanceolate-oblong, obtuse, glabrous above, convex and ± puberulous beneath, considerably reflexed. Petals 3-3.25 mm long, elliptic or obovate-elliptic, very obtuse, rounded or subcuneate at the base, glabrous, purple. Stamens glabrous. Staminodes 1.25 mm long, oblong-oblanceolate, dorsally compressed, ciliate or glabrous, with a wide terminal gland. Disk crenulate. Ovary tubercled, glabrous or sparsely hispidulous, with 4 carpels bearing widely oblong, truncate, retuse processes. Style glabrous.
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Wiry, much-branched shrublet to 60 cm, delicately lime-scented. Flowers in lax, few-flowered, terminal clusters, brilliant mauve. Fruits 4-chambered.