Plants 0.7--1.3 m in flower. Leaves pungent; blade to 44 ´ 1.5--4.5 cm. Inflorescences: staminate and pistillate inflorescences 2--3-pinnately compound, scaly; proximal primary bracts inconspicuous, shorter than lateral branches; lateral branches laxly to densely flowered, occasionally appearing capitate, 1--21.5 cm. Staminate flowers nearly sessile, scaly; floral bracts 4.5--7 mm, exceeded by sepals; sepals ovate to ovate-elliptic, 4.5--5 mm; petals 7.5--9 mm. Pistillate flowers subsessile, scaly; floral bracts 4--6 mm, exceeded by sepals; sepals ovate to broadly ovate, 4.5--7 mm; petals ovate, 7.5--10 mm; ovary almost wholly superior. Capsules 8.5--12.5 mm, scaly, glabrescent with age.
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