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, 1–2-ternate-1–2-pinnate;

petiole usually sheathing entire length, sometime less;

blade rhombic, 2–6 × (0.7–)1.1–4.2 cm, surfaces glabrous or sparsely scaberulous;

leaflets not overlapping, penultimate segments narrow, usually less than 2 mm wide, ultimate segments (5–)10–40(–70), oblong to linear, 3–20(–30) × 0.5–1.5 mm, length/width ratio 1.5–7, larger ones longer than 6 mm, margins entire, usually not reflexed, apex acute, callus tips 0–0.1 mm, firm but not spinelike, terminal segment 5–15 mm;

cauline leaves 0.

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.

1–8 per plant, 1 per stem, decumbent to ascending, not inflated, 4–7 cm, exceeding leaves, 1 mm wide 1 cm below umbel, glabrous or sparsely short-hairy.

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.

1–2.6 cm wide in flower, 1.1–3.5 cm and ± congested in fruit, rays 3–10, spreading to erect in flower and fruit, 0.4–3.4 cm in fruit, unequal, glabrous or scaberulous, usually more hairy or scaberulous than peduncle;

involucel bractlets 0–7, present on at least some umbellets, distinct, linear to narrowly elliptic, 0.5–3 mm, subequal to flowers, margins scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white, rarely purple, glabrous;

anthers purple;

ovary and young fruit granular-roughened with up to 200 papillae per mm2 when young, sometimes becoming smooth with age.

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

0.8–2(–2.5) mm, shorter than fruit.

± 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, broadly elliptic to ovate, crowded, 4.5–7(–8) × 3–5 mm, length/width ratio 1.2–1.9;

wings 0.9–1.5 mm wide, 40–60% of body width, paler than body, flat and spreading, not corky-thickened, well developed;

abaxial ribs slightly raised;

apex obtuse to acute;

oil ducts 1–8 in intervals, 2–6(–10) on commissure.

= 22.