Flora of North America species comparison

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

several to many from base, erect, ascending to decumbent, branched (several), 1.5–3.5(–5) dm.

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 0–1 cm;

blade spatulate, oblanceolate, oblong, or obovate, 2–5.5(–8) cm × 9–18(–25) mm, margins dentate to denticulate, apex obtuse or acute, surfaces usually pubescent, rarely subglabrate, trichomes stellate with some rays branched.

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.

4–8;

blade oblong or ovate, 1–5 cm × 5–20 mm, base subcordate or auriculate, margins usually dentate, rarely subentire, apex acute or obtuse.

simple, (lax).

simple, (lax).

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 oblong, 4.5–8 × 1–2 mm, lateral pair conspicuously saccate basally;

petals white, spatulate to obovate, 10–19 × 4–8 mm, apex obtuse;

filaments 4–7 mm;

anthers oblong, 0.7–1.2 mm.

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

ascending to divaricate, 7–17(–20) mm.

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.

ascending to spreading, torulose, (3–)4–7 cm × 1–2 mm;

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

ovules 40–60 per ovary;

style 0.5–1 mm.

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

wing 0.1–0.2 mm wide.

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

wing 0.1–0.2 mm wide.

= 16.

= 16.