Flora of North America species comparison

(sometimes ascending), unbranched or branched (few), 1.5–8(–9.2) dm.

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

subrosulate (in juvenile plants); shortly petiolate;

blade obovate, 1–2.7 cm (5–14 mm wide), margins dentate apically (teeth with relatively short, bristly trichomes).

(soon withered); rosulate; petiolate;

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

blade (fleshy), broadly ovate to orbicular, 0.7–3.5 cm × 5–24 mm (not smaller distally), base auriculate to amplexicaul, (proximally overlapping, distally not overlapping), margins usually entire, (apex obtuse).

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

ebracteate, (lax in fruit).

ebracteate, (lax).

calyx campanulate;

sepals (ascending), yellowish green (in bud) or purple (in flower), (ovate), 4–7 mm, not keeled, (apex with short, bristly, flattened trichomes);

petals purplish (with darker veins), 5–9 mm, blade 0.5–3 × 0.3–0.7 mm, margins slightly crisped, claw 4–7 mm, wider than blade;

stamens in 3 unequal pairs;

filaments (distinct): abaxial pair 4–6 mm, lateral pair 3–5 mm, adaxial pair 5–7 mm;

anthers (all) fertile, 2.5–3.5 mm;

gynophore 1–3 mm.

(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.

erect to ascending, (straight), 3–8 mm.

strongly recurved, 2–5 mm.

erect to ascending, smooth, often strongly recurved distally, distinctly flattened, 2–7(–8.2) cm × 2–3 mm;

valves each with obscure midvein (sometimes not basally, margins somewhat thickened);

replum straight;

ovules 16–30 per ovary;

style 0.4–1 mm;

stigma entire.

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.

oblong to broadly ovoid, 3–4 × 1.7–2 mm;

wing (0–)0.1–0.25 mm wide at apex, (narrower at margin).

oblong, 1.7–2 × 0.9–1.1 mm;

wing 0.2–0.3 mm wide, distal.

= 28, 56.

= 28.