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, blue-green, ternate-2-pinnate-1-(weakly) pinnatifid;

petiole sheathing basally;

blade rhombic to narrowly triangular, 4–45.5 × 1–30 cm, surfaces glabrous; ultimate segments 1000+, rhombic or broadly elliptic, 1–5.2 × 0.4–2.1 mm, margins entire or with very fine triangular scabrosities (20x), apex acute to obtuse or rounded, not distinctly attenuate, short-apiculate or blunt;

cauline leaves 0–2.

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.

1–15 per plant, per stem, spreading-ascending to erect, not inflated, (12.5–)18–42(–62.5) cm, exceeding leaves, 4–7 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.

3–8 cm wide in flower, 8–10 cm wide in fruit, rays (6–)12–20(–24), spreading-ascending, 1.8–5.5 cm in fruit, unequal, glabrous;

involucel bractlets (2–)3–8(–10) distinct, linear, broad, (0.7–)2–6(–7.4) mm, shorter than flowers, margins not scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow with irregular reddish wash distally, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

(3.8–)5.3–8.3(–9.3) 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, oblong to narrowly elliptic, (11–)13.7–16.3(–17) × 4.5–5.9, length/width ratio 2.2–3.2;

wings 0.5–0.8 mm wide, 10–20% of body width, ± same color as body, not corky thickened;

abaxial ribs obscure, not raised;

apex obtuse or rounded;

oil ducts 2–8 in intervals, 6–16 on commissure, 1–2 on each wing.