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.

erect, branched above middle (only in inflorescence), 60–100 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.

ocrea deciduous or partially persistent at maturity;

blade with lateral veins ± equal in size, oblong or oblong-lanceolate, 20–40(–50) × 8–15(–18) cm, more than 3 times as long as wide, base broadly cuneate, obtuse, or weakly cordate, margins entire, flat, apex acute, subacute, or acuminate.

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

terminal, occupying distal 1/2 of stem, often dense, narrowly paniculate.

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

articulated in proximal 1/2, filiform, (5–)12–15(–17) mm, articulation indistinct, scarcely visible.

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 ovate-deltoid, 4.5–7 × 3.5–7 mm, widest in proximal 1/3, base truncate or weakly emarginate, margins erose to weakly serrate or indistinctly denticulate in basal part, apex acute to acuminate;

tubercles absent.

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

brown, 2.5–4 × 1.5–2.5 mm.

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

= 120.