Oncosiphon suffruticosum

Erect, simple or few-branched annual, 20–60 cm high. Leaves oblanceolate in outline, mostly 2–4 cm long, 10–20 mm wide, 2- or 3-pinnatisect, ultimate lobes under 1 mm wide, surfaces grey-green, pubescent, base amplexicaul. Capitula many, 3–5 mm diam.; peduncles to c. 1 cm long; involucral bracts 2-seriate, oblong, 1–3 mm long, subequal, mostly scarious, more or less glabrous. Ray florets absent; disc florets numerous, exceeding involucre, yellow. Cypselas cuneate, 1–1.5 mm long, ribbed and papillose on inner face; pappus to c. 0.5 mm long. Flowers Oct.–Dec.