Flora of North America species comparison

branched basally and/or distally, (2.1–)3–6.5(–7.5) dm.

unbranched or branched basally, 0.3–3 dm.

rosulate; petiolate;

blade pinnatifid or oblanceolate, 3.5–15(–30) cm, margins runcinate-pinnatifid, dentate, or entire.

not rosulate; shortly petiolate;

blade obovate, 1–5 cm, margins coarsely to shallowly dentate.

blade ovate to lanceolate, 2.5–14 cm × 4–55 mm, (smaller distally), base auriculate to amplexicaul, margins runcinate-pinnatifid, dentate, or entire (usually entire distally).

blade obovate to oblong, 0.7–6 cm × 2–25 mm, base cuneate or truncate, not auriculate or (distally) minutely ariculate, margins coarsely dentate.

ebracteate, (lax).

ebracteate, (not secund, with a terminal cluster of sterile flowers).

calyx urceolate or campanulate;

sepals purple, or ochroleucous to yellowish, 8–11 mm, keeled;

petals white (with purplish veins) or purple (with white margins, recurved), 14–18 mm, blade 5–8 × 1–1.5 mm, margins crisped, claw 9–12 mm, about as wide as blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 6–10 mm, lateral pair 4–7 mm, adaxial pair (exserted), 9–12 mm;

anthers (all) fertile, 4–5 mm;

gynophore 0.5–2 mm.

calyx subcampanulate;

sepals pale green to purplish, ovate, 4–6 mm, not keeled;

petals light purple (with white margins), 6–9 mm, blade 2–3 × 1–1.5 mm, margins crisped, claw 5–6 mm, wider than blade;

stamens in 3 unequal pairs;

filaments: abaxial pair (connate ca. 1/2 their length), 4–5 mm, lateral pair 3–4 mm, adaxial pair (exserted, connate to near apex), 5–6 mm;

anthers: abaxial and adaxial pairs fertile, 1.5–1.8mm, adaxial pair sterile, 0.3–0.5 mm;

gynophore 0.1–0.3 mm.

divaricate-ascending, (straight or curved upward), 7–22(–35) mm.

divaricate-ascending, (straight), 2–5 mm.

ascending, smooth, straight, strongly flattened, 3–8 cm × 4.5–6 mm;

valves each with obscure midvein;

replum straight;

ovules 26–54 per ovary;

style 0.5–2 mm;

stigma strongly 2-lobed.

divaricate-ascending to suberect, straight, flattened, 4–8.5 cm × 2–2.5 mm;

valves each with prominent midvein;

replum straight;

ovules 34–66 per ovary;

style 0.4–1 mm;

stigma slightly 2-lobed.

orbicular, 3–5 mm diam.;

wing 0.6–1.1 mm wide, continuous.

ovoid to suborbicular, 1.6–2 × 1.2–1.8 mm;

wing 0.2–0.35 mm wide, continuous.

= 28.

= 28.