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, silvery or sometimes glaucous abaxially, ternate-pinnate-2-pinnatifid;

petiole sheathing entire length, glabrous;

blade triangular to ovate-deltate, 3–13 × 3.5–7 cm, surfaces hispidulous, sometimes only near margins; ultimate segments 100–600, broadly elliptic to ovate, less often oblong, 3–8 × 0.3–2.5 mm, broad, overlapping, margins entire, ciliate, usually not reflexed, apex obtuse to acute, callus tips 0.1–0.3 mm, firm but not spinelike, terminal segment 1–4 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.

1–12+ per plant, 1–3 per stem, spreading to erect, not inflated, 7–25 cm, exceeding leaves at least in fruit, 1–3 mm wide 1 cm below umbel, glabrous or sparsely to densely hispidulous especially along veins.

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.

1–6.5 cm wide in flower, 2.5–8 cm wide in fruit, rays 7–18, fruiting rays 4–12, erect to ascending, 0.8–3 cm in fruit, unequal, scabrous;

involucel bractlets 6–10(–12), distinct or connate basally or to 2/3 of length, usually obovate, 2.5–8 mm, usually subequal to flowers, margins green or narrowly scarious, not ciliate, entire or few-toothed, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, rarely dark purple, glabrous;

anthers yellow, rarely dark purple;

ovary and young fruit glabrous.

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

2–4 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, ± elliptic, 5–9 × 2.7–4 mm, length/width ratio 1.7–2.3;

wings 0.3–0.6 mm wide, 10–25% of body width, slightly paler than or about same color as body, thick;

abaxial ribs not raised;

apex rounded to obtuse;

oil ducts obscure.

= 22.