Senecio madagascariensis

Erect, ± glabrous perennial to 0.6 m high. Leaves sessile, becoming auriculate upwards, undivided, narrow-elliptic to linear or rarely with 1–3 coarse teeth on each side, mostly 3–10 cm long, to 18 mm wide; margins entire, denticulate or callus-denticulate,  stem-clasping and often auriculate in upper leaves. Inflorescences of 2–20 capitula; capitula radiate; involucre 4.0–6.0 mm long, 3–5 mm diam.; involucral bracts c. 20, apex often brown or black; stereome often suffused with purple below apex; bracteoles present. Ray florets c. 13, yellow, ligules 5–10 mm long; disc florets 80–150, yellow. Cypselas cylindric, 1.5–2.2 mm long, with flattened ribs, papillose hairs in bands; pappus of slender hairs 3–5 mm long, deciduous. Flowers most of year.