Stems 1–1.5 m; herbage stellate-hairy. Leaf blades 5-or 7-lobed, 5–10 cm wide, terminal lobe triangular, base ± truncate, margins serrate to nearly entire, sinuses narrow, acute. Inflorescences 2-or 3-flowered clusters, sometimes solitary flowers, forming interrupted spikes distally; involucellar bractlets filiform, 6–8 × 1 mm, 1/2–2/3 times as long as calyx. Flowers odorless; calyx 12 mm, lobes broadly lanceolate, long-acuminate, 6–8 mm, longer than wide, longer than tube; petals pale pink to deep rose, 2.5 cm. Schizocarps 12 mm diam.; mericarps 11–16, 10 mm. Seeds 2(or 3), dark brown, 2.5 mm, puberulent.
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