Flora of North America species comparison

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

usually unbranched, rarely branched distally, 3–8 dm.

(soon withered); rosulate;

petiolate;

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

(soon withered);

not rosulate;

petiolate;

blade (somewhat fleshy), similar to cauline.

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

(petiolate);

blade broadly spatulate-obovate to suborbicular, or (distally) narrowly oblong-oblanceolate to linear, 1.5–10 cm × 5–45 mm, base (distally) cuneate to attenuate, not auriculate, margins entire, repand, or obtusely dentate, (entire distally).

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 subcampanulate;

sepals purplish, oblong, 5–8 mm, not keeled;

petals maroon to purple, 8–12 mm, blade 3–5 × 0.5–1 mm, margins not crisped, claw 5–7 mm, wider than blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 5–6 mm, lateral pair 4–5 mm, adaxial pair 6–7 mm;

anthers (all) fertile, 3–3.5 mm;

gynophore 0.5–5 mm.

strongly recurved, 2–5 mm.

divaricate to ascending, (straight), 7–17 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.

divaricate-ascending, smooth, straight to slightly curved inwards, flattened, 5.5–12 cm × 2.5–3.2(–3.5) mm;

valves each with prominent midvein;

replum straight;

ovules 24–44 per ovary;

style 0.3–3 mm;

stigma subentire.

oblong, 1.7–2 × 0.9–1.1 mm;

wing 0.2–0.3 mm wide, distal.

broadly oblong to suborbicular, 3–4 × 2–3 mm;

wing 0.5–1.1 mm wide, continuous.

= 28.

= 28.