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, blue-green to green, ternate-2–3-pinnate;

petiole sheathing 1/2 to entire length;

blade ovate to triangular, 7–12 × 6.3–14.4 cm, surfaces glabrous;

ultimate segments (30–)50–200, linear, 5–35 × (0.8–)1.2–2(–3) mm, relatively narrow, crowded, confluent at base with adjacent lobe, petiolule absent, margins entire, usually not reflexed, apex acute, callus tips 0.01–0.1 mm, terminal segment 10–20 mm;

cauline leaves 0–2(–3), if present, with more than 5 ultimate segments.

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.

1–6(–25) per plant, 1–2 per stem, ascending or erect, not inflated, 10–30 cm, exceeding leaves, 1.7–2.7 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.

2.1–7 cm wide in flower, 2.9–8.3 cm wide in fruit, rays 9–20, ascending, 0.7–5 cm in fruit, unequal, glabrous;

involucel bractlets 0(–2), distinct, linear, 0.2–1.5(–3) mm, not exceeding flowers, margins scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, buds yellow, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

(4–)7–10(–13) 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 or not, oblong or elliptic, 5–9.1(–12) × 3–5 mm, length/width ratio 1.5–2.5;

wings 0.5–1.3 mm wide, 20–61% of body width, paler than body;

abaxial ribs raised, sometimes narrow and winglike;

apex rounded;

oil ducts 1 in intervals, 2 on commissure.