Erect shrub to c. 1 m high. Stems, leaves and involucral bracts glandular, vernicose; eglandular hairs rare or absent; stems striate; older stems rough with persistent leaf bases. Leaves tapering gradually to a sessile base, narrowly elliptic, 10–80 mm long, 2–10 mm wide, distantly and pungently toothed, pungent at apex, with apex and lateral teeth mucronate, slightly discolorous. Capitula 7–9 mm long, on short lateral branches in upper axils, forming long narrow or narrowly pyramidal bracteate panicles; involucral bracts linear, green, with dense sessile glands; receptacle flat, pubescent. Florets yellow; corollas 5–5.6 mm long; disc corolla lobes eglandular, glabrous. Achenes 1.2–1.5 mm long, ribbed.