Flora of North America species comparison

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

erect or ascending, divaricately branched in distal 1/2–2/3, 30–80(–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;

blade shape variable, oblong to lanceolate or lanceolate-linear, often panduriform, contracted near or proximal middle, (3–)5–15(–17) × 1–3(–5) cm, base truncate, slightly cordate, or broadly cuneate, margins entire, normally slightly undulate and crisped, apex acute or subobtuse.

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

terminal, occupying distal 2/3 or most of stem, lax, interrupted in proximal part or throughout, broadly paniculate, branches spreading.

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

articulated in proximal 1/3, filiform (occasionally thickened distally), 2.5–5 mm, usually as long as or slightly longer than inner tepals, 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.

5–8(–10) in rather lax remote whorls;

inner tepals broadly to narrowly triangular, 2.5–4 × 1.5–2.3 mm (excluding teeth), base truncate or broadly cuneate, margins prominently dentate, apex acute and ending in hooked tooth, teeth 3–5, at each side of margins, hooked, 0.5–1.5 mm;

tubercles absent, or midveins indistinctly swollen.

brown or dark brown, 5–7 × 4–6 mm.

reddish brown, 1.8–2.3 × 1.2–1.5 mm.

= 40.

= 20.