Flora of North America species comparison

erect to ascending (often flexuous, weak, often tangled with desert shrubs), usually branched distally, 1–8 dm, glabrous or puberulent.

erect, usually branched distally, 1–7 dm.

rosulate;

petiole 0.3–2.5 cm;

blade oblanceolate to spatulate, 0.7–6 cm × 2–27 mm, margins usually coarsely dentate or somewhat pinnatifid, rarely entire, (surfaces glabrous).

rosulate;

petiole 0.2–1 cm;

blade oblanceolate, 1–7 cm × 4–18 mm, margins coarsely dentate or pinnately lobed.

(median) sessile;

blade lanceolate or oblong, 1.5–7.5 cm × 5–20 mm (smaller distally, base amplexicaul to sagittate), margins dentate or entire, (surfaces glabrous).

(median) sessile;

blade ovate to oblong, 2–8 cm × 5–20 mm, (smaller distally, base amplexicaul to sagittate), margins coarsely dentate or entire.

(lax), without a terminal cluster of sterile flowers.

(densely flowered), without a terminal cluster of sterile flowers.

sepals erect, (purplish or yellow-green), narrowly lanceolate, 3–6.5 × 0.8–1.5 mm (equal);

petals yellow-green to purplish (often with purple veins), 4.5–9 mm, blade 2–3 × 0.7–1.5 mm, not crisped, claw narrowly oblong-oblanceolate, 2.5–7 × 1–1.5 mm;

filaments slightly tetradynamous, median pairs 2–4.5 mm, lateral pair 1.5–3.5 mm;

anthers oblong, equal, 1.5–2 mm.

sepals erect, (yellow), lanceolate, 3–6.5 × 1.5–2 mm (equal, keeled);

petals creamy white or pale yellow (sometimes with purple midvein), 10–14 mm, blade 4–5 × 1.5–2 mm, not crisped, claw oblanceolate or oblong, 5–9 × 1–1.7 mm;

filaments tetradynamous, median pairs 3–5 mm, lateral pair 2–4 mm;

anthers oblong, equal, 1–3 mm.

reflexed, 1–4.5 mm, usually glabrous, rarely puberulent.

reflexed, 2–5 mm.

usually reflexed, rarely divaricate (often subfalcate), terete, 2–6 cm × 1.5–2.5 mm;

valves each with prominent midvein, (glabrous or puberulent);

ovules 24–48 per ovary;

style 0.2–2.7 mm;

stigma slightly 2-lobed.

usually reflexed, rarely divaricate (often straight), terete, 3–7.5 cm × 1.2–1.5 mm;

valves each with obscure midvein;

ovules 48–62 per ovary;

style 0–3 mm;

stigma 2-lobed.

1–2 × 1–1.2 mm.

1–2 × 0.9–1.1 mm.

= 28.

= 28.