Flora of North America species comparison

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

erect, branched distal to middle or in distal 2/3, 20–40(–70) 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 usually distinctly obovate, widest distal to middle, rarely weakly panduriform, 4–7(–11) × 2–5 cm, less than 4 times as long as wide, coriaceous, base cuneate, rarely almost truncate, margins entire, flat, rarely slightly undulate, apex obtuse or rounded.

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, usually lax, occasionally rather dense, interrupted in basal 1/2, broadly paniculate, branches usually straight, unbranched, forming angle of 45° with 1st-order stem, leafy almost to top.

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

articulated in proximal 1/3, thickened, 3–5 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 rather dense whorls;

inner tepals ovate-triangular or triangular-deltoid, 4–5(–5.5) × 2.4–3 mm (excluding teeth), ca. 1.5 times as long as wide, base truncate, margins distinctly dentate, apex acute to subacute, straight, teeth 3–5, normally at each side of margins, narrowly triangular or subulate, straight, 0.4–2.5 mm, equaling or shorter than width of inner tepals;

tubercles usually 3, equal or subequal, apex obtuse, distinctly verrucose.

brown or dark brown, 5–7 × 4–6 mm.

brown, 2.3–2.8(–3) × 1.4–1.8 mm.

= 40.