Flora of North America species comparison

simple or few from base (caudex), erect, unbranched, (0.6–)1.5–3.5(–4.5) dm, (sparsely to densely hirsute basally or throughout).

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

petiole 0.3–1.5 cm, (ciliate);

blade oblanceolate to obovate, (0.5–)1–3(–4) cm × (2–)3–6(–10) mm, margins entire, repand, or obtusely dentate, (ciliate), apex obtuse, surfaces pubescent, trichomes usually simple, sometimes mixed with fewer forked ones, rarely subglabrate.

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.

3–6 (or 7);

blade oblong, 0.4–1(–1.5) cm × (1–)2–4 mm, base not auriculate, margins entire or repand, apex obtuse.

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.

simple, (dense).

simple, (lax).

sepals (purple), oblong, 4–8 × 1.5–2.5 mm, lateral pair saccate basally;

petals purple, spatulate, (9–)10–18(–20) × (2.5–)3.5–6(–8) mm, apex obtuse;

filaments 4–9 mm;

anthers oblong, 1.5–2 mm.

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.

ascending to suberect, 8–12(–15) mm, (subglabrate or sparsely pubescent).

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

ascending to suberect, not torulose, sometimes slightly curved, 3.5–6.5 cm × 1.5–2 mm;

valves each with prominent midvein extending full length;

ovules 24–36 per ovary;

style (0.7–)1–2 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.

narrowly winged nearly throughout except wider distally, oblong, 1.5–2.3 × 1–1.3 mm;

wing 0.1–0.3 mm wide.

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

wing 0.1–0.2 mm wide.

= 32.

= 16.