Branchlets hispid. Leaves 5-6 mm long, alternate, subimbricate, erect-spreading, obovate, often widely so, obtuse or subacute, rounded at the base, slightly concave and often sparsely hispidulous above, with gland-swellings and small stalked glands at the margin, convex, hispid and conspicuously nerved beneath. Flowers in dense terminal clusters. Peduncles 2.5-3 mm long, sparsely hispidulous, ebracteolate. Sepals 2.5 mm long, lanceolate or oblong-lanceolate, obtuse, concave above, densely ciliate, sometimes with stalked glands on the margin, conspicuously thickened behind the apex. Petals 6 mm long, glabrous; blade obovate, very obtuse; claw 1.5-2 times as long, filiform. Stamens glabrous. Staminodes 3.5 mm long, spathulate, sparsely pubescent on the filiform lower half. Disk with 5 widely deltoid very obtuse lobes. Ovary with 5 carpels tubercled at the apex and bearing widely obovate hispid processes. Style pubescent except at the apex.
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Robust, single-stemmed, densely leafy shrub to 1.5 m, peppermint-scented. Flowers in dense heads, white or mauve. Fruits 5-chambered.