Herbs, annual, 5–10 dm, monoecious. Stems trichotomously branched, mostly densely, grayish white, long stellate-hairy. Leaves sometimes clustered near inflorescences; stipules absent; petiole 1.5–4 cm, glands absent at apex; blade narrowly ovate to elliptic, 3.5–7 × 1.5–3.5 cm, base rounded to subtruncate or subcordate, margins entire, apex acute, both surfaces light olive green, abaxial surface not appearing brown-dotted, no stellate hairs with brown centers, whitish stellate-hispid. Inflorescences bisexual, subspicate racemes, 4–7 cm, staminate flowers 15–25, pistillate flowers 8–15. Pedicels: staminate 0.5–2.5 mm, pistillate 0–3 mm. Staminate flowers: sepals 5, 3 mm, abaxial surface stellate-hairy; petals 5, ligulate, 3–3.5 mm, abaxial surface densely lepidote, scales translucent, petals appearing hyaline; stamens 14–16. Pistillate flowers: sepals 6–8, equal, 7 mm, margins entire, apex straight to slightly incurved, abaxial surface shaggy-tomentose; petals 0 or rudimentary; ovary 3-locular; styles 3, 3–4 mm, 2 times 2-fid, terminal segments 12. Capsules 4.5–5.5 × 4 mm, smooth; columella 3-angled. Seeds 3 × 2 mm, dull.
Home