Erect aromatic shrub to c. 3 m high; branchlets with c. appressed cottony hairs, erect, gland-tipped hairs and sessile glands, viscid. Leaves spreading (young ones often gummed together), linear to narrow-lanceolate, 15–95 mm long, (1–)2–5(–9) mm wide, glabrous and viscid above, white- or grey-cottony and glandular beneath (midrib usually glabrescent), apex acute, margins flat to recurved; petiole 0.5–1 mm long. Inflorescences corymbose, 5–20 cm diam. Capitula 50–400, white, turbinate, 3.5–4.5 mm long, 1.5–2.5 mm wide; involucral bracts 12–18, innermost with lamina deltoid, 1.5–2 mm long, erect, white, margin entire, incurved; receptacle bracts 3–4; florets 5–6. Cypsela cylindric, c. 1 mm long, sparsely papillose; pappus bristles 1.5–2.5 mm long, apex tapering Flowers Nov.–Feb.