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, gray-green, 3-pinnately compound; dissected petiole sheathing basally to entire length;

blade usually triangular to ovate, 3–6 × 2–5 cm, surfaces sparsely hairy;

leaflets not or slightly overlapping, penultimate segments narrow, usually less than 2 mm wide, ultimate segments 125–300, narrowly elliptic; ovate or elliptic, 0.5–1.5 × 1.5–3 mm, margins entire, sometimes ciliate, apex obtuse to rounded, callus tips 0.1–0.2 mm, terminal segment 1–5 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–)3–6(-15) per plant, 1 per stem, decumbent, spreading, ascending, or erect, not inflated, 3–10 cm, equaling or exceeding leaves, 1–2 mm wide 1 cm below umbel, densely hirtellous.

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.

2–3 cm wide in flower, 3.2–8 cm wide in fruit, rays 8–20, ascending to spreading, 0.4–2.5 cm in fruit, unequal but not becoming easily distinguishable from one another, densely hirtellous;

involucel bractlets (0 or 4–)5–8, distinct, lanceolate, 3–4 mm, subequal to flowers, margins broadly scarious, often ciliolate, usually entire, glabrous or scarcely hirtellous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white or purplish white, glabrous;

anthers purple;

ovary and young fruit moderately hirtellous.

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

2–17 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, generally more orbiculate than ovate, 4–7 × 3–6 mm, length/width ratio 1.2–1.5(–2.2);

wings 0.6–1.4 mm wide, 25–45% of body width, paler than body;

abaxial ribs slightly raised;

apex obtuse to rounded;

oil ducts 1 in intervals, 6 on commissure, sometimes 1 in wing.