Flora of North America species comparison

unbranched or branched, (few, glaucous), 6–15(–18) dm.

branched distally, (1–)2–9(–10.5) dm.

often rosulate; petiolate;

blade (fleshy), oblanceolate to obovate, 3.5–21 cm, margins dentate, (bristly ciliate throughout or only teeth and petiole ciliate).

not rosulate; petiolate;

blade pinnatisect to pectinate into filiform segments, 2–8 cm.

blade lanceolate to narrowly ovate, 3.5–11(–15) cm × 6–14 mm (smaller distally), base auriculate to amplexicaul, margins usually entire or undulate, rarely dentate.

(petiolate proximally, sessile distally);

blade pectinate or pinnatisect into filiform segments, or (distally) linear-lanceolate to ovate or cordate, 2–12 cm, (segments 0.4–2.7 cm × 0.5–1.5mm), base not auriculate proximally, amplexicaul distally, margins entire distally, becoming bracts.

ebracteate, (with densely clustered buds, later lax).

bracteate below or between proximalmost 1 or 2 flowers.

calyx campanulate;

sepals (suberect), purple, (broadly ovate or oblong), 7–10 mm, not keeled, (apically bristly or not);

petals light purple (with pale yellow claw), 9–12 mm, blade 2–3.5 × 0.5–1 mm, margins not crisped, claw 6–9 mm, wider than blade;

stamens tetradynamous;

filaments: median pairs (distinct), 6–8 mm, lateral pair 4–6 mm;

anthers (all) fertile, 3–4 mm;

gynophore 0.5–1.5 mm.

calyx urceolate;

sepals yellow or purplish, 5–7 mm, keeled, (apex recurved);

petals pale yellow to whitish (with purple veins, recurved), 8–16 mm, blade 3–6 × 1.5–3.5 mm, margins not crisped, (undulate), claw 5–10 mm, narrower than blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 2.5–6 mm, lateral pair 1.5–4 mm, adaxial pair 4–8 mm;

anthers: abaxial and lateral pairs fertile, 3.5–4 mm, adaxial pair partially fertile, 1.5–2.3 mm;

gynophore 0.5–1.5 mm.

divaricate-ascending, (straight), 5–18 mm.

divaricate to divaricate-ascending, (straight), 2–10 mm.

spreading to ascending, smooth, slightly curved to straight, flattened, 6–14 cm × 2–3.5 mm;

valves each with obscure midvein;

replum straight;

ovules 50–102 per ovary;

style 1–3 mm;

stigma 2-lobed.

geniculately reflexed, smooth, straight, flattened, 3–9 cm × 1–1.5(–2.2) mm;

valves each with obscure midvein;

replum straight;

ovules (22–)38–80 per ovary;

style 0.2–1 mm;

stigma obscurely 2-lobed.

oblong, 2–3 × 1.4–2 mm;

wing 0.1–0.2 mm wide at apex.

oblong, 1–1.5(–2.2) × 0.6–1(–1.5) mm;

wing (0–)0.05–0.1(–0.4) mm wide, distal.

= 28.