Flora of North America species comparison

erect, branched above middle (only in inflorescence), 50–100 cm.

usually erect, occasionally ascending, usually producing axillary shoots below 1st-order inflorescence or at proximal nodes, 15–40(–60) cm.

ocrea deciduous or partially persistent at maturity;

blade with large lateral veins alternating with short ones, oblong or oblong-lanceolate, 30–40(–50) × 10–12 cm, more than 3 times as long as wide, base broadly cuneate, truncate, or weakly cordate, margins entire or indistinctly repand, flat, apex obtuse or broadly acute.

blades lanceolate or linear-lanceolate, 6–15 × 2–3 cm, usually ca. 4–5 times as long as wide, widest near middle or slightly towards base, usually thin, base cuneate, margin entire, flat, rarely indistinctly undulate, apex acute.

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

terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, dense or occasionally slightly interrupted at base, usually broadly paniculate (branches normally simple and crowded).

articulated in proximal 1/3, filiform, 6–16 mm, articulation indistinct.

articulated in proximal 1/3 or almost near base, filiform (but thickened distally), 4–7 mm, not more than 2–2.5 times as long as inner tepals, articulation indistinctly or evidently swollen.

10–20 in whorls;

inner tepals ovate-triangular or subcordate, 5–6 × 4.5–6 mm, widest at or near middle, base weakly emarginate, margins entire, erose, or indistinctly denticulate mostly at base, apex abruptly narrowed, acute or subacute;

tubercles absent.

10–25 in whorls;

inner tepals deltoid or broadly ovate-deltoid, 2.5–3 × 2.5–3 mm, base truncate or indistinctly cordate, margins entire, apex acute, rarely subacute;

tubercles absent.

deep brown to reddish brown, 2.5–4(–4.5) × 1.8–2.5 mm.

dark reddish brown or almost black, 1.8–2 × 1–1.3 mm.

= 120.

= 40.