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, ternate-3-pinnate;

petiole sheathing entire length, at least some strongly scabrous;

blade rhombic, (1.5–)2–7 × 0.5–5.6 cm, thin, surfaces glabrous or slightly scabrous; ultimate segments 100–180 on basal leaves, narrowly linear to linear or lanceolate, 0.9–5(–7) × 0.4–0.6 mm, margins entire, apex acute, callus tips 0–0.1 mm, firm but not spinelike, terminal segment 8–12 mm;

cauline leaves usually 3–5, if present, with more then 5 ultimate segments, similar to basal leaves.

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.

2–5(–12) per plant, 1–2 per stem, ascending or erect, not inflated, 1.5–15 cm, exceeding leaves, 1.5–3 mm wide 1 cm below umbel, scaberulous to sparsely puberulent.

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.

1–6 cm wide in flower, 3.5–10 cm wide in fruit, rays 5–14, erect, 1–11.5 cm in fruit, unequal, densely puberulent;

involucel bractlets (0–)1–3, distinct, linear, to 3.8 mm, subequal to flowers, margins narrowly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, glabrous;

anthers yellow;

ovary and young fruit densely granular-scaberulous or papillate with short, blunt hairs, not pointed-scabrous.

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

2–5(–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, elliptic to oblong, 5.6–8(–10) × 2.7–5 mm, length/width ratio 1.9–2.4;

wings 0.3–0.8 mm wide, 10–28% of body width, paler than body;

abaxial ribs slightly raised;

apex acute to obtuse;

oil ducts several usually 4–5 in intervals, mostly 6–8 on commissure.