Flora of North America species comparison

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

and axillary shoots ascending or erect, branching in distal 2/3, (5–)10–30(–40) 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.

blades distinctly obovate or obovate-elliptic, 5–8(–12) × (2–)3–5(–7) cm, widest in distal 1/2, rather fleshy, coriaceous, base cuneate, margins entire to obscurely repand, crisped or occasionally flat, apex obtuse, rounded.

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

terminal and axillary, occupying distal 1/2–2/3 of shoots, usually dense at least in distal part, narrowly to broadly paniculate (but branches in most cases simple or nearly so).

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

articulated near middle or in proximal 1/3, thickened (especially distally), 3–5 mm, not more than 2–2.5 times as long as inner tepals, articulation distinct, 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.

5–20 in whorls;

inner tepals ovate-deltoid or ovate-triangular, 4–5 × (2.5–)3–3.5 mm, base broadly cuneate or truncate, margins entire, apex obtuse or subacute;

tubercles 3, equal or unequal, finely punctate.

brown or dark brown, 5–7 × 4–6 mm.

glossy brown or dark reddish brown, 2.5–3 × 1.8–2.5 mm.

= 40.

= 40.