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-pinnately compound and pinnately to quinately dissected;

petiole sheathing basally to entire length;

blade widely obovate or rhombic, ovate, or orbiculate, 3.5–18 × 2.5–7 cm, surfaces glabrous;

apical 2–3 pinnule pairs of secondary leaflets without naked intercostal region between rachilla and basalmost pinnule lobes, appearing sessile;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 250–2000, narrowly linear, (1–)2–4(–6) × 0.2–0.5(–0.7) mm, congested, obscuring short intercostal areas along rachillae, margins entire, apex acute, callus tips 0–0.1 mm, terminal segment 2–5 mm;

cauline leaves 0–2.

absent or subterranean.

usually present, 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–(–6) per plant, 1 per stem, curved-ascending to erect, not inflated, 7–28 cm, exceeding leaves, 1–3 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.

2–6 cm wide in flower, 2.5–8 cm wide in fruit, rays 3–12(–20), suberect, 4–8(–11) cm in fruit, very unequal, glabrous on outer surface, scaberous on outside edges and inner surface;

involucel bractlets (0–)1–8, distinct, linear, mostly 2–3(–5) 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.

1–10 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, linear-oblong or lanceolate to narrowly elliptic, 6.5–17 × 3.5–6 mm, length/width ratio 2.2–4(–6);

wings 0.4–0.8 mm wide 15–45% of body width, paler than body;

abaxial ribs not raised;

apex usually acute;

oil ducts 1(–3) in intervals, 2(–4) on commissure, inconspicuous.

= 22.