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 or bluish, ternate-3-pinnate, ternate-2-pinnate-pinnatifid, or 2-ternate-1–3-pinnate;

petiole narrowly sheathing basally to entire length, glabrous;

blade ovate, 6–13 × 3.2-14.4 cm, surfaces densely scabrous; ultimate segments 100–400, linear, 1–10 × to 1 mm, relatively wide, margins entire, apex broadly acute, callus tips 0.1–0.2 mm, firm but not spinelike, terminal segment 9–25 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.

usually 1–5 per plant, 1 per stem, spreading to erect, not inflated, 8–25 cm, exceeding leaves, 1–3 mm wide 1 cm below umbel, densely scabrous.

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.

3.5–5.2 cm wide in flower, 5–15 cm wide in fruit, rays 5–16, ascending to erect, 3–10 cm in fruit, unequal, densely hairy with triangular hairs;

involucel bractlets 8–13, distinct, broadly elliptic to broadly oblong, or obovate, often abruptly narrowed to an acuminate apex, (1.5–)3–8 mm, exceeding flowers, margins broadly scarious, rarely narrowly scarious, not ciliate, often lobed or toothed near apex, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals red or purple, glabrous;

anthers purple;

ovary and young fruit glabrous.

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

1.8–4 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, elliptic, 7.6–10 × 3.7–5.5 mm, length/width ratio 1.4–2;

wings 0.9–1.5 mm wide, 25–63% of body width, ± same color as or paler than body;

abaxial ribs not raised;

apex obtuse;

oil ducts obscure.

= 22.