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, gray-green or green, mostly ternate-1–2-pinnate-1–2-pinnatifid, divided 3+ times;

petiole sheathing basally to entire length;

blade triangular or rhombic to widely ovate, (2–)3–10 × 2–6 cm, surfaces densely to sparsely villous or glabrous;

leaflets tightly clustered, penultimate segments narrow, usually less than 2 mm wide, ultimate segments 60–300, linear, linear-oblong, linear-elliptic, or elliptic to obovate, if not much longer than wide, then narrowed at base, 0.5–3(–5) × (0.3–)0.5–1 mm, length/width ratio 4.4–12, ultimate segments equal in length within leaf, either much longer than wide or narrowed at base, margins entire or toothed, apex acute, callus tips 0–0.1 mm, firm but not spinelike, terminal segment 8–10 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–several per plant, 1 per stem, spreading to erect, not inflated, (2.5–)5–30 cm, exceeding leaves, 1–3 mm wide 1 cm below umbel, villosulous, sometimes 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.

1–3.8 wide in flower, 1.8–6 cm wide in fruit, rays 3–18, fruiting rays 1–5(–8), spreading-ascending, 0.7–3.5 cm in fruit, very unequal, densely puberulent, sometimes glabrous;

involucel bractlets 5–11, distinct or connate basally, linear to broadly lanceolate, 1–3(–4) mm, shorter than flowers, margins inconspicuously scarious, ciliate or ciliolate, entire or slightly lobed, sparsely to densely hairy or hirtellous, ciliate or ciliolate.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white, sometimes purple-tinged, glabrous;

anthers purple, sometimes fading to cream;

ovary and young fruit not glossy, glabrous, glabrate, or densely villous when young and then sometimes glabrescent.

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

3–11 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, broadly elliptic to orbiculate, 4.6–10 × 3.4–7 mm, length/width ratio 1.3–1.6, not glossy;

wings 0.6–1.4 mm wide, 30–70% of body width, paler than body;

abaxial ribs not raised;

apex rounded to obtuse;

oil ducts 1–2 in intervals, usually 4 on commissure, conspicuous.

= 22.