Flora of North America species comparison

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

rosulate; petiolate;

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

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).

ebracteate, (lax).

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.

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

orbicular, 3–5 mm diam.;

wing 0.6–1.1 mm wide, continuous.

= 28.