Herbs, 2–10 dm. Stems erect. Leaves: stipules linear-lanceolate, 2–6 mm, sometimes split at base; petiole 2–10 cm, glands 2, papillate, lobed or digitate; blade usually deeply 3(–5)-lobed, sometimes unlobed, central lobe elliptic to oblanceolate, 3–9 × 2–10 cm, larger than lateral ones, base truncate to rounded, apex acuminate, abaxial surface hairy, adaxial surface glabrate or hairy. Inflorescences 2–6(–15) cm; staminate flowers 3–15(–20), pistillate flowers 1–5(–7). Pedicels: staminate 2–3 mm, pistillate 1–2 mm (to 3 mm in fruit). Staminate flowers: sepals usually purple-tinged, ± unequal, narrowly ovate-oblong, 1–1.3 mm, enveloping bud before anthesis, apex blunt and ± hooded; petals hyaline, oblong, 1.2–1.8 mm. Pistillate flowers: sepals oblanceolate to spatulate, 4–7 × 1–2 mm, apex acute, semiappressed-hairy; ovary usually hairy, rarely glabrous; styles 2–4.5 mm, 3-fid, each branch then 2-fid, terminal segments 18. Capsules 5–8 × 5–7 mm, sparsely hairy. Seeds 4.5–5.5 × 2.7–3.5 mm, 2.5–3 mm thick, rugulose; caruncle shortly stipitate, reniform-peltate, 0.5–0.8 × 1.2–2 mm. 2n = 18.
Home
