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, ternate(or pinnate)-1-pinnate-1-pinnatifid, basal leaves with petiole narrowly sheathing basally to entire length, not shiny, glabrous;

blade broadly elliptic to triangular-ovate, 1–6.5 × 0.6–2.5 cm, thick, surfaces glabrous;

leaflets oval-ovate, overlapping, appearing coarsely toothed;

penultimate segments broad, more than 2 mm wide;

primary or secondary leaflets broad, serrate or shallowly cleft less than halfway to midrib, sometimes also deeply few-cleft more than halfway to midrib, leaves with basal pair of primary leaflets sessile or short-petiolulate, petiolules seldom over 1 cm, ultimate segments 32–75, ovate, sometimes oblong, 1–7 × 1–2 mm, relatively wide, length/width ratio 1–2, margins entire, apex obtuse to rounded, sometimes acute, callus tips 0–0.1 mm, firm but not spinelike, terminal lobe 1.5–6 mm, terminal leaflet 15–25 × 12–15 mm;

cauline leaves 0.

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.

1–2+ per plant, 1 per stem, spreading to ascending, not inflated, 4–6 cm, exceeding leaves in fruit, 1–2 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.

0.9–1.5 cm wide in flower, 1.8–3.1 cm wide in fruit, rays 2–7, spreading, 0.2–1 cm in fruit, unequal, glabrous;

involucel bractlets 8, connate basally, linear to obovate, conspicuous, 2.5–3 mm, subequal to flowers, margins narrowly scarious, not ciliate, slightly lobed at base, 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.

4 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, elliptic, 5–8 × 3.5–4.5 mm, length/width ratio 2;

wings 0.5–1 mm wide, 33% of body width, paler than body;

abaxial ribs not or slightly raised;

apex acute to obtuse;

oil ducts 2–3 in intervals, usually 4 on commissure, obscure.