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, strongly blue-green, ternate-2–3-pinnately dissected;

petiole sheathing basally to entire length, glabrous;

blade ovate to rhombic, 4–10.5 × (1.1–)2.7–17.2 cm, surfaces not shiny, glabrous, leaflets not overlapping;

penultimate segments narrow, usually less than 2 mm wide;

petiolules of proximal primary leaflets more than 1 cm, ultimate segments 200–600 including tiny lobes, elliptic, usually (1.5–)2–8 × (0.7–)1–2 mm, length/width ratio 1–3.5(–5), relatively firm, thick or thin, margins entire, apex mostly acute, sometimes obtuse or rounded, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 0.5–5(–8) mm;

cauline leaves 0–2.

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.

1–4(–10) per plant, 1(–2) per stem, ascending to erect, not inflated, 7–30 cm, exceeding leaves, 1–3.5 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.

1–7 cm wide in flower, 4.5–15 cm wide in fruit, rays (8–)12–30, spreading to suberect, usually 5–9 cm in fruit, unequal, glabrous;

involucel bractlets 1–8, distinct, linear to linear-lanceolate, 0.2–5 mm, equaling flowers when well developed, margins green or scarious, not ciliate, entire, rarely with narrow lobes near apex, 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.

4–12 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, ovate, ovate-oblong, elliptic, 5–10 × 3–5.5 mm, length/width ratio 1.1–2.2;

wings 0.6–1(–1.2) mm wide, 15–35% of body width, paler than body;

abaxial ribs slightly raised;

apex acute to obtuse to rounded;

oil ducts (1–)3–4(–6) in intervals, 4–8 on commissure, readily visible.

= 22.