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, usually ternate-pinnate-1–2-pinnatifid;

petiole narrowly sheathing basally to less than 1/2 length;

blade rhombic to broadly elliptic, 2.5–15 × 3–5 cm, surfaces mostly glabrous distally but hairy proximally;

primary leaflets not overlapping, mostly with well-developed petiolules, not confluent with rachis, penultimate segments narrow, usually less than 2 mm wide, ultimate segments 10–75, linear, 2–25(–30) × 0.5–2 mm, larger ultimate segments longer than 6 mm, margins entire, apex acute to rounded, callus tips 0–0.2 mm, terminal segment 7–25(–30) mm;

cauline leaves 0–2, if present, similar to basal except petioles sheathing throughout.

absent or subterranean.

absent.

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.

1–4 per plant, 1–3 per stem, ascending or erect, not inflated, 2–20 cm, exceeding leaves at least in fruit, 1.8–3 mm wide 1 cm below umbel, glabrous, scabrous, or crisped-puberulent.

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.

1.6–4.8 cm wide in flower, 2–7.5 cm wide in fruit, rays (4–)7–15, ascending, 1.5–7 cm in fruit, unequal, glabrous or crisped-puberulent;

involucel bractlets 2–5, distinct or basally connate, narrowly linear, 1–3 mm, subequal to flowers, margins not scarious, not ciliate, entire, 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.

usually 4–11(–15) mm, subequal to 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, elliptic or oblong to ovate, 5.4–8.2 × 2.8–4.7 mm, length/width ratio 1.5–2.3;

wings 0.7–1.4 mm wide, 45–65% of body width, paler than body;

abaxial ribs slightly or not raised;

apex acute to obtuse or rounded;

oil ducts 1–2 in intervals, 4–6 on commissure.

= 22.