Flora of North America species comparison

unbranched or branched distally, (0.8–)2–8(–10) dm.

unbranched or branched, (1–)3–9(–11) dm.

(soon withered); rosulate; petiolate;

blade 1- or 2-pinnatifid (with broadly linear to filiform lobes), 2–20 cm, margins sinuate-dentate.

rosulate; petiolate (petioles broadly winged, setose-ciliate);

blade usually spatulate to obovate, rarely narrowly oblanceolate, 1.5–8(–11) cm, margins dentate (at least distally).

blade linear, 1–10 cm × 1–3 mm, (smaller distally), base auriculate, margins entire.

blade broadly oblong to ovate, suborbicular, or lanceolate, 2–9 cm × 7–45(–60) mm, (smaller distally), base auriculate to amplexicaul, margins entire or toothed, (apex rounded, obtuse, or acuminate to acute).

ebracteate, (lax).

ebracteate, (lax).

(markedly zygomorphic);

calyx urceolate;

sepals greenish yellow or purplish, (abaxial broadly ovate, not keeled, 4–6 × 3–4 mm, lateral ovate-lanceolate, keeled, 4–6 × 1.5–2 mm, adaxial suborbicular to broadly ovate-cordate, forming a bannerlike hood, keeled, 4–6 × 6–8 mm);

petals white (with brownish veins), 5–8 mm, blade 1–3 × 0.7–1.2 mm, margins crisped (channeled), claw 4–5 mm, wider than blade;

stamens in 3 unequal pairs;

filaments: abaxial pair (distinct), 4–5 mm, lateral pair 3–4 mm, adaxial pair (connate), 5–6 mm;

anthers: abaxial and lateral pairs fertile, 1.5–2 mm, adaxial pairs sterile, 0.3–0.7 mm;

gynophore 0.1–0.4 mm.

calyx campanulate;

sepals greenish brown to purple, (broadly oblong), 5–12 mm, (lateral pair subsaccate basally), not keeled, (glabrous or subapically bristly);

petals purple to brownish, (claw purplish), 9–15 mm, blade 2–6 × 0.7–1 mm, (recurved or not), margins not crisped, claw 7–10 mm, wider than blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 5–7 mm, lateral pair 4–5 mm, adaxial pair 7.5–10 mm;

anthers (all) fertile, 2.5–5 mm;

gynophore 0.5–1.5 mm.

strongly recurved, 2–5 mm.

divaricate-ascending, (straight), 3–11(–14) mm.

pendent, smooth, straight, flattened, 2.4–5.6 cm × 1.2–1.7 mm;

valves each with obscure or somewhat prominent midvein;

replum straight;

ovules (10–)18–50 per ovary;

style 0.8–2 mm;

stigma entire.

ascending to divaricate-ascending, smooth, straight, flattened, 5–10.5(–14.5) cm × (2.5–)3–6(–7) mm;

valves each with prominent midvein;

replum straight;

ovules 20–38(–46) per ovary;

style 0.2–3 mm;

stigma subentire to strongly 2-lobed.

oblong, 1.7–2 × 0.9–1.1 mm;

wing 0.2–0.3 mm wide, distal.

broadly oblong to suborbicular, 2.5–5 × 2.2–5 mm;

wing 0.1–0.9 mm wide, continuous.

= 28.