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-pinnate;

petiole sheathing entire length;

blade triangular, rhombic, or ovate, 2–14 × 3–10 cm, surfaces glabrous;

leaflets not overlapping;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 5–30, linear, (1–)10–80(–120) × (1–)3–5(–8) mm, unequal in length, relatively narrow, margins entire, usually not reflexed, apex acute, callus tips 0–0.01 mm, firm but not spinelike, terminal segment 8–50 mm;

cauline leaves (2–)3–8(–10), with more than 5 ultimate segments, similar to basal.

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.

(2–)3–10 per plant, (2–)3–8(–10) per stem, erect, sometimes glaucous, not inflated, 2–8 cm, exceeding leaves, 0.7–3.1 mm wide 1 cm below umbel, glabrous or minutely hirtelous.

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.

2–7 cm wide in flower, 1.5–11(–18) cm wide in fruit, rays 5–17, spreading, (1.5–)3–10(–15) cm in fruit, very unequal, glabrous;

involucel bractlets 0(or 2–6), absent on most umbellets, distinct, oblanceolate, 1 mm, not exceeding flowers, margins entirely scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, fading whitish, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

4–18 mm, usually longer (occasionally a little 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, with wings flat but body not compressed, narrowly oblong, narrowly elliptic, or fusiform, 5.5–8.6 × 1.2–2.5 mm, length/width ratio (2.9–)3.3–5;

wings 0.2–0.5 mm wide, 4–15% of body width, paler than body;

abaxial ribs not raised;

apex obtuse or narrowly rounded;

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

= 22.