Biennial, 40–100 cm high; stems slender, simple or sparsely branched, villous to glabrous towards the base, ± glandular-hairy above. Lower leaves 4–15(–21) cm long and 1–4 cm wide, petiolate, lyrato-pinnate, with several to many small oblong or tooth-like segments on each side, terminal lobe much larger broadly ovate or ovate-elliptic, coarsely toothed, pubescent to glabrous; upper stem leaves few, decreasing markedly in size, triangular-ovate, acute at apex, semi-amplexicaul, coarsely toothed; petiole 6–13 cm. Bracts 2 to 4 times shorter than the fruiting pedicels, glandular. Racemes lax, many-flowered; pedicels in fruit 10–22 mm long. Calyx deeply divided, lobes lanceolate, 2–3 mm long, glandular. Corolla yellow with purple centre, 12–20 mm in diameter. Stamens purple, all bearded with white hairs; style 8–12 mm long, glabrous. Capsule subglobose, 5–6 mm in diameter, glabrous. Seeds numerous, ± 0.5 mm long.
