Flora of North America species comparison

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

often branched basally, (0.6–)1–3.5 dm.

(soon withered); rosulate; petiolate;

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

rosulate; petiolate;

blade oblanceolate to spatulate, 1–7 cm, margins usually sinuate to dentate, rarely lobed.

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

(shortly petiolate or sessile);

blade oblong to ovate, 0.5–3 cm × 1–5 mm, (smaller distally), base auriculate or (distally) amplexicaul, margins entire or dentate apically, (entire distally).

ebracteate, (lax).

bracteate below or between proximalmost 1 or 2 flowers.

(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 slightly urceolate;

sepals rose-purple, 4–5 mm, not keeled;

petals (spreading), pinkish, 7–10 mm, blade 3–5 × 1.5–2.5 mm, margins not crisped, claw 5–6 mm, narrower than blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 3–4 mm, lateral pair 1.5–2.5 mm, adaxial pair 5–6 mm;

anthers (all) fertile, 1.5–2 mm;

gynophore 0.5–3 mm.

strongly recurved, 2–5 mm.

divaricate to ascending, (straight or recurved), 3–6 mm, (not expanded at receptacle).

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, torulose, straight, slightly flattened, 3–7 cm × 1–1.5 mm;

valves each with obscure midvein;

replum straight;

ovules 24–52 per ovary;

style 0.1–0.5 mm;

stigma entire.

oblong, 1.7–2 × 0.9–1.1 mm;

wing 0.2–0.3 mm wide, distal.

oblong, 1–1.5 × 0.6–0.9mm;

wing (0–)0.05–0.25 mm, distal.

= 28.