Herbs or subshrubs, to 1 m. Roots thickened. Stems lax (often leaning on other vegetation), terete when young; nodes not swollen; leaf and stipule scars not elevated. Leaves: stipules lanceolate, entire; petiole 2–10 cm; blade basally attached to subpeltate, 5-lobed, lobes with acute secondary lobes near base, median lobe 2–10 cm, margins thickened and revolute, remotely serrate, apex acute to acuminate (bristle-tipped), surfaces glabrous, abaxial smooth. Inflorescences terminal, racemes, 25 cm. Pedicels: staminate 1–5 mm; pistillate 10–20 mm in fruit, downcurved. Staminate flowers: calyx campanulate to conic, 8–13 mm, lobes reflexed; stamens 10. Capsules 1.5 cm, smooth, not winged. Seeds oblong, 10 mm.
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