Conyza cinerea Linnaeus, Sp. Pl. 2: 862. 1753; Vernonia cinerea (Linnaeus) Lessing

Leaf blades 20–35(–50+) × 12–25(–30+) mm (including petioles). Peduncles 3–10(–20+) mm. Bracts ± linear at proximal nodes, wanting distally. Phyllaries 3–4 mm. Cypselae 1.5–2 mm; pappi white, outer scales 0.1–0.3 mm, inner bristles 3–4 mm. 2n = 36.

Flowering year-round. Disturbed places; 0–10 m; introduced; Fla.; Mexico; West Indies; Central America; South America; Asia; Africa; Indian Ocean Islands; Pacific Islands.