Senecio minimus

Erect, aromatic annual 30–120 cm high; stems usually glabrous, sometimes sparsely cobwebbed when young. Leaves sessile, usually auriculate, elliptic to lanceolate, 6–20 cm long, 1–4 cm wide, more or less regularly dentate or denticulate; upper surface finally glabrous; lower surface glabrous to sparsely cobwebbed. Inflorescence corymbose, often 25 cm across or more, usually with c. 100–400 capitula; capitula non-radiate; involucre cylindric, 6–8.5 mm long, glabrous; bracts 6–10(–11); bracteoles present; florets c. 12–21, bisexual and unisexual. Cypselas cylindric to fusiform, 1.7–2.2 mm long, dark reddish-brown or brown, papillose-hairy in rows, often angled or slightly ribbed in cross-section; pappus of slender hairs 4.5–6 mm long, deciduous. Flowers Dec.–Apr.