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 or gray-green, usually ternate-1–2-pinnate, sometimes with confluent leaflets;

petiole sheathing basally;

blade triangular-ovate, 3–15 × 2.3–7.1 cm, surfaces glabrous;

primary leaflets pinnately lobed; ultimate segments 9–50, ovate to obovate, pinnately lobed, 8–24 × 7–15 mm, relatively wide, margins serrate, irregularly and sharply pinnatifid-incised, apex acute, callus tips 0.3–0.5 mm, weak, terminal segment 13–26 mm;

cauline leaf 1.

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.

1–3 per plant, 1–2 per stem, ascending or erect, not inflated, 10–50 cm, exceeding leaves, 1.5–3.5 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.

2.1–6 cm wide in flower, 5.8–8.2 cm wide in fruit, rays 8–15, spreading, 0.5–6.5 cm in fruit, subequal, glabrous;

involucel bractlets usually 2–5, connate basally, linear to linear-lanceolate, 2–8 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 glabrous.

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

6–15 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, oblong to orbiculate, 6–12 mm diam., length/width ratio 0.7–1.3;

wings 2.7–3.9 mm wide, 100–200% of body width, paler than body;

abaxial ribs slightly raised;

apex emarginate;

oil ducts 1–3 in intervals, 4–6 on commissure.

= 44.