Shrub to 1.5 (-2) m tall, spreading by rhizomes, glabrous or glabrescent. Leaves pinnate or pinnatisect to bipinnate or bipinnatisect, ovate to broadly ovate in outline, to 10 cm long including petiole; primary lobes (3-) 9-17; ultimate lobes usually linear to narrowly oblong, 1-3 (-5) cm long, decurrent, entire, rounded, mucronate, glabrous; venation obscure above. Conflorescences solitary or rarely aggregated, terminal and upper axillary, usually exceeding leaves, glabrous; pedicel 9-15 (-18) mm long. Perianth 7-9 mm long, white or cream, often tinged red, glabrous. Gynophore 4-5 mm long. Style 3-4.5 mm long. Follicle 1-3 cm long, dark grey, sometimes glaucous. Seeds 3-4 mm long; wing 6-9 mm long.
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