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 blue-green, (1–)2-ternate-pinnately dissected;

petiole sheathing basally;

blade triangular, fan-shaped, or rhombic, 3.5–12 × 2.4–9.6 cm, surfaces glabrous to slightly scaberulous; ultimate segments 10–100(–150), linear, usually 10–60(–75) × 0.2–2.6 mm, relatively narrow, crowded, confluent at base with adjacent lobe, petiolule absent, margins entire or minutely serrulate (10x), usually not reflexed, apex acute, callus tips 0.1–0.2 mm, terminal segment 10–20 mm;

cauline leaves 0–2, petiole sometimes sheathing 1/2 to entire length, distal cauline leaf sometimes reduced with 1–3 ultimate segments.

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.

1–8 per plant, 1–3 per stem, ascending to erect, not inflated, 5–15 cm, exceeding leaves, 1 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.

0.5–2 cm wide in flower, 1.5–6 cm wide in fruit, rays 5–12, ascending to spreading, longer ones mostly 1–3.5 cm in fruit, unequal, glabrous;

involucel bractlets few to several, often connate into narrow basal rim or collar, linear to linear-acuminate, usually broadened at base, sometimes reduced to short teeth on rim or collar, 0.5–3 mm, subequal to flowers, margins scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white, cream, or ochroleucous to ± purplish, glabrous;

anthers white or yellow;

ovary and young fruit glabrous or nearly so.

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

1–4(–6) mm, shorter than 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, narrowly elliptic-oblong, narrowly obovate to elliptic, 10–18 × (3–)4–6 mm, length/width ratio 2–3.8;

wings 1–2.3 mm wide, 65–140% of body width, paler than body;

abaxial ribs slightly or not raised;

apex acute to broadly rounded or truncate;

oil ducts 1–3 in intervals, about 5 on commissure.