Erect, aromatic annual to 1.2 m high. Leaves pinnate, 3–12(–25) cm long; leaflets 9–25, lanceolate to linear-lanceolate, 15–25(–50) mm long and 3–8(–12) mm wide, acute, dentate, ± glabrous, glandular. Capitula solitary, campanulate, 4–6 cm diam.; involucral bracts 5–8, fused into a tube, 10–22 mm long, glabrous, covered with elongate orange glands. Ray florets (3–)5–8(–100); ligule 10–30 mm long, yellow, orange or red-brown. Disc florets (10–)50–120, yellow or orange, ciliate along lobe margins, pubescent on inner surface of lobes and tube. Cypselas 3–4 angled, 6–11 mm long, with short antrose hairs particularly on ridges, dark brown or black; pappus of 0–2 subulate-aristate, ciliate scales, 6–12 mm long, and 2–4 distinct or connate linear-oblong, erose scales. Flowers Aug.–Apr.
VVP, GipP. WA (naturalised), SA, Qld, NI, ACT (doubtfully naturalised). Native to Mexico. Naturalized at Lara, south-west of Melbourne, and at a few suburbs of inner and south-east Melbourne.
