Flora of North America species comparison

solitary or several from base, erect or ascending, branched in distal 2/3 (in inflorescence), 10–40(–45) cm.

ascending or decumbent, usually producing axillary shoots below 1st-order inflorescence or at proximal nodes, 50–60(–70) cm.

blade obovate-oblong, ovate-lanceolate, oblong-lanceolate, or lanceolate; 2–6(–10) × 0.5–2 cm, base hastate (with spreading lobes), auriculate, or occasionally without evident lobes, margins entire, flat, apex obtuse or subacute.

blades with lateral veins forming angle of ca. 80° with midvein especially near base, ovate or ovate-elliptic, 10–25 × 4–12 cm, usually ca. 2 times as long as wide, fleshy, coriaceous, base rounded or truncate-cuneate, occasionally indistinctly cordate, margins entire, flat, apex acute.

terminal, occupying distal 2/3 of stem, usually lax and interrupted, narrowly paniculate.

terminal and axillary, terminal usually occupying distal 1/3–1/2 of stem, usually lax, interrupted in proximal part, broadly paniculate.

articulated in proximal part, filiform, 1.5–2.5(–3) mm, articulation indistinct or slightly swollen.

articulated in proximal part, distinctly thickened distally 8–13 mm, (2.5–)3–4 times as long as inner tepals, articulation slightly swollen.

3–6(–8) in whorls;

inner tepals orbiculate or broadly ovate, 2.5–3.2 × 2.7–3.2 mm, base broadly cordate or rounded, apex obtuse or subacute;

tubercles absent or some inner tepals with slightly swollen central veins.

10–20 in whorls;

inner tepals orbiculate or rounded-triangular, 4–5 × 4–5 mm, base truncate or subcordate, margins entire, or rarely indistinctly erose, apex acute or acuminate (with broadly triangular tip);

tubercles 3, equal or subequal, minutely punctate and/or rugose in proximal part.

brown or dark brown, 0.9–1.2 × 0.6–0.8 mm.

brown or dark brown, 2–2.5(–3) × 1.8–2.5 mm.

= 8 (pistillate plants), 9 (staminate plants), 10 (both sexes).

= 60.