Flora of North America species comparison

arising at slightly different heights, not forming just 1 rosette, blue-green, glaucous, often 2–3-ternate-3-pinnately dissected;

petiole broadly sheathing basally to 1/2 length;

blade triangular to ovate, 5–12 × 2.7–10 cm, surfaces glabrous;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 1000–5000, linear, 1–5 × 0.5 mm, not overlapping, margins entire, apex acute, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 1–5 mm;

cauline leaves 0–2, petioles sometimes sheathing more than 1/2 length.

arising at slightly different heights, not forming just 1 rosette, green, often 2–3-ternate-(or quinate-)-1–2-pinnate-pinnatifid or otherwise much divided;

petiole sheathing basally;

blade triangular-ovate to orbiculate, usually 8–15 × 6–24 cm, surfaces glabrous;

primary leaflets pinnately lobed, leaf segments 300–1300+, generally ovate to oblong, pinnately lobed, 4–14 × 2–8 mm, relatively wide, margins entire, usually not reflexed, apex acute to obtuse, callus tips 0.1–0.3, firm but not spinelike, terminal segment 5–9 mm;

cauline leaves 0(–3).

absent or subterranean.

subterranean.

1–6 per plant, usually 1 per stem, decumbent, spreading, or ascending, strongly inflated at maturity, 5–15(–24) cm, exceeding leaves, 2–8(–11) mm wide 1 cm below umbel, glabrous.

1–6+ per plant, 1 per stem, ascending or erect, not inflated, 10–30 cm, exceeding leaves, (2–)3–5 mm wide 1 cm below umbel, glabrous.

2.5–4.7 cm wide in flower, 3.6–8.6 cm wide in fruit, rays 6–16, spreading, 1–4(–6) cm in fruit, subequal to unequal, glabrous;

involucel bractlets several, distinct, linear-subulate, (3–)4–9(–15) mm, shorter or longer than flowers, margins very broadly scarious, not ciliate, entire, glabrous;

umbellets 8–15-flowered.

7.6–14.4 cm wide in flower, 11–19 cm wide in fruit, rays usually 12–20, spreading, 3–12 cm in fruit, subequal, glabrous;

involucel bractlets several, distinct, narrowly linear, 3–10 mm, often exceeding flowers, margins scarious or not, not ciliate, entire or distally 3-lobed, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, glabrous;

anthers yellow;

ovary and young fruit glabrous.

(5.5–)6.5–8(–9) mm, shorter than fruit.

6–14 mm, shorter than fruit, spreading to erect when fruit is mature.

± dorsiventrally compressed, narrowly elliptic or oblong-oval, 8.8–16(–19.3) × (3–)4.7–7.8 mm, length/width ratio 1.9–3.3;

wings 0.9–2 mm wide, 25–50% of body width, ± same color as body;

abaxial ribs slightly raised;

apex obtuse;

oil ducts usually 1 in intervals, 3–4 on commissure, conspicuous.

dorsiventrally compressed, widely elliptic, oblong-ovate, or obovate, 10–16(–18) × 7–12 mm, length/width ratio 1.1–1.8;

wings 2–3.2 mm wide, (40–)50–67% of body width, ± same color as or paler than body;

abaxial ribs slightly or not raised;

apex emarginate;

oil ducts 1–2 in intervals, 4 on commissure, sometimes 1 in each wing.

= 22.