Flora of North America species comparison

usually simple from base, erect to ascending, often branched proximally, (0.6–)1–2(–2.5) dm.

simple or few from caudex, erect, unbranched or rarely branched (few) distally, (1–)1.5–4(–5) dm, (glabrous throughout or sparsely pubescent proximally).

petiole 0–1 cm;

blade spatulate, oblanceolate, oblong, or obovate, (0.4–)1–4(–5) cm × (3–)6–15(–20) mm, margins dentate to denticulate, apex obtuse or acute, surfaces usually pubescent, rarely subglabrate, trichomes stellate with simple rays.

petiole 0.5–2.5(–3) cm;

blade oblanceolate to obovate, (0.6–)1–3.5(–4.5) cm × (3–)5–15(–20) mm, margins entire or dentate, (not ciliate), apex obtuse, surfaces uniformly pubescent, trichomes short-stalked, stellate.

3–5(–6);

blade oblong or ovate, 1–3 cm × 5–15 mm, base subcordate or auriculate, margins usually dentate, rarely subentire, apex acute or obtuse.

3 or 4(–6);

blade linear, oblong or oblanceolate, 1–3(–4) cm × (1.5–)3–7(–10) mm, base cuneate, not auriculate, margins usually entire, rarely few-toothed, apex obtuse, surfaces glabrous or sparsely pubescent at least along margin.

simple, (lax).

simple.

sepals oblong, 2.5–4(–4.7) × 1–2 mm, lateral pair conspicuously saccate basally;

petals white, spatulate to obovate, 5–8(–9) × 2–3.5 mm, apex obtuse;

filaments 3–5 mm;

anthers oblong, 0.7–1.2 mm.

sepals (greenish), oblong, 2.5–4 × 1–1.5 mm, lateral pair saccate basally;

petals white, oblanceolate, 7–9 × 2.5–3.5 mm, apex rounded;

filaments 2.5–4 mm;

anthers oblong, 0.8–1 mm; (gynophore to 0.5 mm).

ascending to divaricate, 4–10(–12) mm.

ascending to divaricate, (5–)8–20 mm, (glabrous).

ascending to spreading, torulose, 1.7–3.5(–4) cm × 1–1.7 mm;

valves each with midvein absent or obscure, along proximal 1/2;

ovules 34–50 per ovary;

style 0.3–0.6 mm.

divaricate, slightly torulose, sometimes slightly curved, slightly flattened, (1.3–)1.7–3.5(–4) cm × 1–1.5 mm;

valves each with obscure midvein extending to middle;

ovules 14–28 per ovary;

style 0.5–1.3 mm.

narrowly winged throughout, ovate, 1–1.4 × 0.9–1.1 mm;

wing 0.1–0.2 mm wide.

not winged, oblong, 1–1.2 × 0.5–0.6 mm.

= 16.

= 32.