Herbs , perennial, from stout woody rhizomes or tuberous roots. Leaves basal and cauline, proximal leaves petiolate, distal leaves sessile or nearly so; cauline leaves alternate. Leaf blade 2-ternately compound; leaflets broadly ovate to cuneate-obovate, margins entire to deeply 3-notched. Inflorescences terminal or axillary, 2-10-flowered cymes or racemes or flowers solitary, to 4 cm; bracts absent. Flowers bisexual, radially symmetric; sepals not persistent in fruit, 5(-9), white, occasionally tinged pinkish, plane, ovate to obovate, 3.5-15 mm; petals absent; stamens 9-75; filaments filiform to clavate or narrowly triangular; staminodes absent between stamens and pistils; pistils [1-]2-10, simple; ovules 2-6 per pistil; style present. Fruits follicles, aggregate, sessile or stipitate, oblong or elliptic to obovate, laterally compressed, sides with a few prominent veins and transverse veinlets; beak terminal, straight or curved, 0.5-3 mm. Seeds reddish brown, ovoid, smooth, rugulose, or minutely pubescent. x = 7.
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Herbs perennial. Rhizome short, inconspicuous. Roots many, slender. Leaves 1 or 2 × ternately compound. Inflorescences terminal or axillary, umbelliform or 1-flowered, bracteate. Flowers radially symmetric. Sepals petaloid. Petals absent. Stamens numerous; filaments apically thickened; anthers yellow. Pistils 3--6. Follicles shortly beaked. Seeds rugose.