Flora of North America species comparison

erect or ascending, usually branched distally, 1–8 dm, sparsely hispid basally.

erect, unbranched or branched distally, 1.7–12 dm, usually hirsute basally.

rosulate;

petiole 0.3–3 cm;

blade oblanceolate, 0.7–9 cm × 4–25 mm, margins coarsely dentate-sinuate.

soon withered;

blade lyrate, margins sinuate-pinnatifid.

(median) sessile;

blade lanceolate to narrowly ovate, 0.5–11 cm × 2–45 mm, (smaller distally, base amplexicaul), margins entire or denticulate.

petiolate (median 0.3–2 cm) or (distal) sessile;

blade lanceolate to oblong or oblanceolate, 2–13.5 cm × 3–35 mm (smaller distally, base sometimes subauriculate), margins dentate.

(densely flowered), with a terminal cluster of sterile flowers.

without a terminal cluster of sterile flowers, (considerably elongated in fruit).

sepals erect to ascending, (dark purple in bud, becoming greenish or creamy white and purplish or brown distally), ovate to narrowly lanceolate, 6–17 × 2.5–3.5 mm (subequal, keeled, usually glabrous, rarely pubescent, trichomes simple);

petals white (with dark purple veins), 8–20 mm, blade 4–8 × 1.5–2 mm, crisped, claw oblanceolate, 4–11 × 2–3 mm;

filaments in 3 unequal pairs, (median pairs often connate), abaxial pair 3.5–11mm, lateral pair 2–7 mm, adaxial pair 5–12 mm;

anthers oblong to linear-oblong, unequal, 1.5–4 mm, (adaxial pair smaller).

sepals usually erect, rarely ascending to spreading, oblong, 6–9 × 1.5–2 mm, (not saccate or urceolate);

petals (erect), usually white to creamy white, rarely pinkish, (narrowly lanceolate), 7–13 mm, blade 3–5 × 1–1.5 mm, channeled, crisped, claw linear-oblanceolate, 4–8 × 1–1.7 mm;

filaments tetradynamous, (erect), median pairs 5–7 mm, lateral pair 3–5 mm;

anthers narrowly oblong, equal, 1.5–2.5 mm.

ascending to divaricate, 3–18(–27) mm, pubescent or glabrous.

ascending to strongly reflexed, (slender or thickened), 4.5–8 mm, glabrous or sparsely pubescent.

erect or ascending (often straight), terete or slightly latiseptate, 5–12 cm × 2.5–3.5 mm;

valves each with prominent midvein basally;

ovules 52–72 per ovary;

style 0–4 mm;

stigma strongly 2-lobed (lobes 1–4 mm, opposite valves).

erect, (straight), terete, 3.8–7.7 cm × 1.4–2 mm;

valves each with obscure midvein, (glabrous or sparsely pubescent);

ovules 44–58 per ovary;

style 1–3.5 mm;

stigma subentire.

2–3.5 × 1.7–2.2 mm.

(brown), 1.3–1.8 × 0.9–1.2 mm.

= 28.

= 28.