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, 40–70 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 lanceolate or broadly lanceolate, 5–10(–15) × 2–3(–4) cm, usually ca. 3–4 times as long as wide, widest in proximal 1/2, rarely near middle, thick, often subcoriaceous, base cuneate, margins entire, flat, apex acute or attenuate.

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

terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense or interrupted in proximal 1/2, usually narrowly paniculate (branches simple and comparatively short).

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

articulated in proximal 1/2 almost near base, thickish, 3–6(–7) mm, usually approximately as long as or slightly shorter than inner tepals, articulation indistinctly 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.

12–20 in whorls;

inner tepals ovate or cordate-triangular, occasionally almost orbiculate, 5–6 × 4–5 mm, base truncate or indistinctly cordate, margins entire, apex obtuse or subacute;

tubercles absent or 1 inner tepal with indistinctly swollen midvein.

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

brown, 2.7–3.2 × 1.8–2.5 mm.

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

= 20.