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, usually 2-pinnate-pinnatifid, sometimes ternate-2-pinnate-pinnatifid, shiny;

petiole usually sheathing basally, rarely to 1/2 length, glabrous;

blade triangular or rhombic to ovate, 3–15(–20) × 2.5–9 cm, delicate, thin, surfaces glabrous, rachis glabrous proximally, outline of leaf blade tip usually acute to narrowly obtuse;

penultimate segments narrow to broad, from less than to more than 2 mm wide; ultimate segments 80–800, mostly ovate or elliptic, 1–6 × 0.2–0.8(–1.2) mm, length/width ratio 1–3.5(–5), margins entire, apex usually acute, sometimes obtuse, callus tips 0–0.2 mm, firm but not spinelike, terminal segment 1–3 mm;

cauline leaves (0–)1+, if present, with more than 5 ultimate segments, similar to basal leaves.

absent or subterranean.

absent or 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.

1–12(–20) per plant, 1–2(–4) per stem, ascending to erect, not inflated, 10–25 cm, exceeding leaves, 1–3 mm wide 1 cm below umbel, glabrous or distally scaberulous.

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.

0.9–3(–3.5) cm wide in flower, (3.5–)4–12.5 cm wide in fruit, rays 8–18, spreading-ascending, 1–6.5 cm in fruit, unequal, glabrous or scaberulous proximally;

involucel bractlets (0–)1–5, distinct, linear, linear-lanceolate, or linear-subulate, inconspicuous, to 4.5(–10.5) mm, to 1/2 length of pedicels, margins green or very narrowly scarious, not ciliate, entire, glabrous or sparsely hispid.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, glabrous;

anthers white or yellow;

ovary and young fruit glabrous.

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

4–10 mm, usually shorter, sometimes longer 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, elliptic, oblong, or oblong-ovate, 5–9 × 3–4.8 mm, length/width ratio 1.3–2.2, shiny;

wings 1–1.6 mm wide, 60–122% of body width, paler than body;

abaxial ribs not to distinctly raised;

apex rounded to obtuse or acute;

oil ducts 2–3 in intervals, 5(–6) on commissure.

= 22.