Flora of North America species comparison

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

erect, branched above middle, 60–100 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 mostly deciduous or sometimes partially persistent at maturity;

blade usually ovate-orbiculate, sometimes orbiculate or broadly ovate, 20–40 × 20–35 cm, base deeply and widely cordate, margins entire, flat or slightly undulate, apex obtuse.

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 of stem, rather dense, widely paniculate to fusiform.

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

articulated at middle or in proximal 1/3, filiform, 3–9 mm, articulation distinctly 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 ovate or ovate-triangular, 4–5(–6) × 3–5 mm, base truncate or slightly cordate, margins entire or subentire, apex obtuse or subobtuse;

tubercles absent.

brown or dark brown, 5–7 × 4–6 mm.

brown to brownish green, 2.5–3.5 × 1–2 mm.

= 40.

= 20.