Flora of North America species comparison

ascending or, rarely, erect, usually producing axillary shoots near base, (10–)15–30(–40) cm.

erect, branched in distal 1/2–2/3, 30–70(–100) cm.

blades ovate-elliptic, obovate-elliptic, or ovate-lanceolate, (2–)4–12(–15) × 1–5(–6) cm, subcoriaceous, base narrowly to broadly cuneate, margins entire, flat or slightly undulate, apex acute or acuminate.

ocrea deciduous or partially persistent at maturity;

blade oblong-lanceolate, 20–30 × 5–10 cm, base cordate to broadly cuneate, margins entire, repand, flat or crisped, apex acute or attenuate.

terminal and axillary, usually occupying distal 2/3 of stem/shoot, usually dense, or interrupted in proximal part, broadly paniculate.

terminal, occupying distal 1/2–2/3 of stem, interrupted in proximal 1/2, paniculate, branched.

articulated near middle, filiform or slightly thickened, (8–)10–16 mm, articulation distinct, slightly swollen.

articulated in proximal 1/3, filiform, distinctly swollen in distal part (near base of tepals, but not at articulation point), 4–14 mm, articulation weakly evident, not swollen.

5–15 in whorls;

inner tepals distinctly double-reticulately veined, orbiculate or reniform-orbiculate, 13–18(–20) × (20–)23–30 mm, base deeply emarginate or cordate, margins entire, apex rounded, obtuse, rarely subacute, with short, broadly triangular tip;

tubercles absent, occasionally very small.

10–20 in whorls;

inner tepals oblong-ovate, 4–6 × 3–5 mm, base rounded to subcordate, margins entire, apex obtuse or subacute;

tubercles absent.

brown or dark brown, 5–7 × 4–6 mm.

mature specimens not seen.

= 40.

= 120.