Shrubby herb or shrub up to 2 m tall, glabrous to densely pubescent. Leaves with petiole 1.5–9 cm long; blade ± broadly ovate, sometimes shallowly 3-lobed, 2–13 x 1.5–11 cm, rounded to cordate at the base, acuminate to rounded at the apex, with serrate margins. Flowers in leaf axils; pedicels 5–10 mm long, articulated at the base. Epicalyx bracts 5(–6), 10–20 x 1–3 mm, linear-acuminate, 1–3-veined. Calyx 12–20 mm long; lobes with prominent central nerve and two slightly weaker lateral nerves. Petals 4–6 cm long, yellow, with or without dark base; column 15–25 mm long. Capsule 15–25 mm long, subglobose, longer than calyx, setulose, with acute to aristate valves. Seeds 3–4 mm long, glabrous, with concentric lines.