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, ternate-pinnate or 2-pinnate;

petiole sheathing basally;

blade broadly triangular to ovate, 7–15 × 2.5–8.5(–11.5) cm, surfaces glabrous;

primary leaflets pinnately lobed;

penultimate segments 20–80, ovate, pinnately lobed, 9–25 × 5–10 mm, relatively wide, length/width ratio 1–2, margins toothed, teeth acuminate, spinulose, usually not reflexed, apex rounded or truncate in outline, but with acuminate tooth, callus tips 0.3–1 mm, stiff, spinelike, terminal segment 10–25 mm;

cauline leaves 0–1.

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(–5) per plant, 1 per stem, spreading to erect, slightly inflated, 10–50 cm, exceeding leaves, 2–5.5 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.

3.9–8.3 cm wide in flower, 5–12.3 cm wide in fruit, rays 10–20, spreading-ascending, 2.5–5 cm in fruit, subequal, glabrous;

involucel bractlets 5–8, ± connate basally, lanceolate, 3–8 mm, subequal to flowers, margins sometimes scarious, not ciliate, entire or lobed, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals brown, purple, or orange, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

1–5.1 mm, shorter than or 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, ovate to oblong, (6–)8–12 × 5–7 mm, length/width ratio 1.1–1.6;

wings 1–2 mm wide, 30–55% of body width, paler than body;

abaxial ribs slightly raised;

apex rounded;

oil ducts 3 in intervals, ± 6 on commissure.