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 or blue-green, usually 1-pinnate or 1-pinnatifid;

petiole usually sheathing basally, rarely to entire length;

blade narrowly oblong, 0.5–2.5 × 1–4 cm, surfaces glabrous or slightly scabrous;

primary leaflets sessile and ± confluent with rachis, ultimate segments (3–)7–11(–13), usually oblong to narrowly elliptic, 2–10 × 1–2 mm, ± flat and wider than rachis, margins entire or 1-lobed, apex obtuse, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 2–18 mm;

cauline leaves 0.

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.

2–12(–26) per plant, 1 per stem, ascending to erect, not inflated, 1–8(–16) cm, subequaling leaves in flower, slightly exceeding leaves in fruit, 1–2 mm wide 1 cm below umbel.

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.

1–1.5 cm wide in flower, 1–2.6 mm in fruit, rays 3–7, spreading, 0.3–1.7(–3.2) cm in fruit, unequal, pubescence unknown;

involucel bractlets several, distinct or often shortly basally connate, linear-subulate, mostly 1–3(–4) mm, shorter than or equaling, sometimes exceeding flowers, margins scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

sepals scarious or greenish, to 0.5 mm;

petals yellow, fading cream, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

1–3 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, oblong-oval, 4–7 × 3–4 mm, length/width ratio 1.2–1.8;

wings 1–1.5 mm wide, 40–67% of body width, paler than body;

abaxial ribs slightly raised;

apex obtuse;

oil ducts obscure or 0.