Perennial, glabrous, up to 1 m tall. Leaves petiolate, up to 15 cm long, 2-pinnate; pinnae oval to ovate, incised; leaf bases sheathing. Peduncles 3-15 cm long. Involucre of 5-6 linear white margined bracts. Rays 3-0, slender, 2-6 cm long. Involucel of 5-6 white margined bractlets. Pedicels 1-2.5 cm long, filiform. Calyx teeth obsolete. Fruit ovoid to almost globose, 2-3 mm long, glabrous; ridges thin, not prominent; furrows 2-3-vittate; stylopodium conical; styles short, reflexed. Inner seed face plane to slightly concave.