Shrublet c. 300 mm to 1.5 m tall, branches becoming stout, up to c. 5 mm in diam., pubescent, hairs up to 0.1-0.2 mm long, patent or slightly recurved, closely leafy. leaves fascicled, alternate, largest primary leaves 2-5 x 1-1.5 mm (axillary leaves 2.2-5.5 x 0.5-1 mm, mostly narrower and sometimes longer than primary leaves), narrowly deltoid or lanceolate, (axillary linear-oblong), apex acute or subacute, shortly apiculate, base broad, margins entire, revolute, those of axillary leaves often more strongly so than in primary leaves, texture thick, venation raised on lower surface of at least primary leaves, glandular-punctate, otherwise glabrous except for fringe of minute hairs on lower margins of primary leaves. Inflorescence terminal, composed of few-flowered crowded spikes arranged in crowded corymbose or narrowly elongate panicles c. 20-50 x 25-40 mm, often somewhat pyramidal. Bract adnate only to extreme base of calyx tube and minute pedicel if present, lowermost 2.1-3.5 x 1.2-2 mm, narrowly deltoid to rhomboid, acute or subacute, concave, thick-textured, venation raised on back, normally glabrous except for fringe of hairs 0.15-0.3 mm long on margins, rarely some hairs on the back near the base. Pedicels either wanting or up to c. 0.1 mm long. Calyx 1.8-2.8 mm long, campanulate, subequally 5-lobed at least halfway to the base, lobes narrowly triangular, acute, strongly keeled, hairs up to 0.2-0.25 mm long on margins, pubescent all over outside or hairs few or wanting on upper part of lobes, minutely glandular as well. Corolla tube 2.6-4 mm long, funnel-shaped, limb 4-5 mm across lateral lobes, posticous lobes 1.3-1.8 x 0.8-1.2 mm, anticous lobe 1.5-2.5 x 1-1.3 mm, all lobes oblong-elliptic, white. Stamens: posticous filaments 1.7-2.8 mm long, anticous filaments 2-2.8 mm long, all anthers well exerted. Stigma and style c. 2.8-4.5 mm long, style pubescent. Ovary c. 0.6 x 0.3 mm. Cocci c. 2 x 1 mm, brown, rugulose, inner face almost flat. Flowering takes place between August and April, the peak months probably December and January.
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Like S. glomerata but leaves and bracts with raised veins beneath (not sunken), bracts sticky and cocci almost flat on inner surface.