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 or ascending, unbranched or branched distally, (hollow, sometimes slightly inflated), 2–12 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 0.5–3.5 cm;

blade oblanceolate to oblong (in outline), 1.5–11.5 cm × 5–55 mm, margins pinnately lobed (lobes dentate).

(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).

(distalmost) sessile;

blade lanceolate-linear, margins entire, (surfaces sparsely hispid).

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

(somewhat lax), 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, (creamy white), lanceolate to ovate, 3–6.5 × 1.8–2.5 mm (equal);

petals creamy white, 6–10.5 mm, blade 3–4 × 1.5–2 mm, not crisped, claw narrowly oblanceolate or oblong, 3–6 × 2–3 mm;

filaments in 3 unequal pairs, abaxial pair 2.5–6 mm, lateral pair 1.5–4.5, adaxial pair 4.5–8 mm;

anthers narrowly oblong, unequal, 2–3 mm (adaxial pair slightly smaller).

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

ascending, 9–25 mm, hispid or subglabrate.

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.

divaricate to ascending (sometimes curved), terete, 6.5–12.5 cm × 1.8–2.2 mm;

valves each with prominent midvein;

ovules 78–96per ovary;

style to 2 mm;

stigma slightly 2-lobed.

1–2 × 1–1.2 mm.

1–1.6 × 0.7–1 mm.

= 28.