Stems 40-50 cm tall, usually robust, glabrous or pubescent, curved, ascending, branched, winged, wings entire. Cauline leaves obovate-oblong, 3-5 × 1.5-2.2 cm, shortly pubescent or glabrescent, base narrowed, apex rounded. Clusters of capitula globose or ovoid, ca. 8 mm in diam.; peduncle glabrous, winged, bracts slender, acuminate. Capitula campanulate, ca. 3 × 2.5 mm. Involucre ca. 3 × 2.5 mm; phyllaries subequal, oblanceolate, glabrous or only outermost ones abaxially glandular. Receptacle naked. Marginal florets numerous; corolla tubular, ca. 1.5 mm; style apex obtuse. Central florets ca. 3; corolla ca. 1.5 mm, 5-dentate; base of anthers entire, filaments dilated, glabrous; style cylindric, shortly bifid. Achenes cylindric, ca. 1 mm, gland-dotted, without pappus. Fl. Dec-May. 2n = 20.
Spreading shrub 40–80 cm high. Stem wings entire or denticulate, glabrous or pubescent. Leaves narrowly elliptic to obovate, 20–100 mm long, 8–32 mm wide, entire or denticulate, obtuse or acute, aromatic, with sparse eglandular hairs; sessile glands abundant. Glomerules globose, 7–11 × 7–11 mm, leaf-opposed; peduncles 3–15 (–20) mm long; bract subtending each capitulum lanceolate, c. 4 mm long, acute; involucral bracts obovate to oblanceolate, 1.7–2.5 mm long, glabrous or almost so. Female florets 6–15, corolla bottle-shaped, 1.0–1.6 mm long, white, with sparse sessile glands. Disc florets 1–3, fertile, bottle-shaped to cylindrical, 1.4–2.0 mm long; corolla lobes 0.3–0.6 mm long; globose sessile glands present. Achenes 0.9–1.4 mm long, densely glandular and with sparse twin hairs.
A herb.