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, bluish green or gray-green, ternate-1–2-pinnate-0–1-pinnatifid;

petiole broadly sheathing entire length, usually straw-colored throughout, glabrous;

blade triangular or rhombic, (2.5–)3–10 × 2–9.5 cm, surfaces glabrous;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 50–200, ascending to spreading in life, linear, lanceolate, sometimes elliptic, (1–)3–7(–18) × (0.2–)0.5–1.5(–2) mm, margins entire, sometimes slightly lobed, usually not reflexed, apex ± acute to acuminate, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 6–8 mm;

cauline leaves 0.

absent or subterranean.

absent or 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 per plant, 1 per stem, ascending or erect, not inflated, 6–15 cm, exceeding leaves, (0.5–)1–2.5 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.

0.9–2 cm wide in flower, 1–6.2 cm wide in fruit, rays 3–13, fruiting rays 1–4, spreading or ascending, (0–)1–6.5 cm in fruit, unequal, glabrous;

involucel bractlets (0 or)5–10, distinct, linear, lanceolate, oblanceolate, or obovate, 2–7 mm, equal or subequal to flowers, margins broadly or narrowly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white or cream, glabrous;

anthers purple turning cream;

ovary and young fruit glabrous or sparsely granular-roughened when young, often smooth with age.

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

2–7 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 elliptic, 8–15 × 3–5.6 mm, length/width ratio 2–3.8(–4.4);

wings 1–2.8 mm wide, 34–80% of body width, paler than or ± same color as body, curved slightly downward;

abaxial ribs not raised;

apex acute to obtuse;

oil ducts several in intervals, 5–8 on commissure, obscure.

= 22.