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, grayish green, 2–4-ternate-(1–)2–3-pinnate;

petiole sheathing basally, usually longer than blade;

blade deltate to ovate, 4–8 × 5–11 cm, surfaces glabrous;

penultimate segments narrow, usually less than 2 mm wide; ultimate segments 500–750, very narrowly linear, (2–)5–16 × 0.1–0.8 mm, appearing crowded distally because primary and secondary petiolules naked and long, subequal to part of leaflet that has blades, margins entire, apex blunt, callus tips 0–0.1 mm, terminal segment (2–)5–16 mm;

cauline leaves 0–1(–3), often represented by petiole sheaths without blades.

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.

1–3 per plant, 1 per stem, ascending or erect, not inflated, 15–20 cm, exceeding leaves, 1–3 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.

1.5–4 cm wide in flower, 4–9 cm wide in fruit, rays 5–13, divergent, 2–8 cm in fruit, unequal, glabrous;

involucel bractlets (0–)few, distinct, narrowly linear to linear-lanceolate, 1.2–3 mm, shorter than flowers, margins scarious, not ciliate, entire, glabrous;

umbellets 8–15-flowered.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow or white when young, becoming pink or purple with age, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

5–14 mm, shorter than or subequal to 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.

slightly to definitely dorsiventrally compressed, oblong, sometimes elliptic, 7–15 × 6–8 mm, length/width ratio 1.5–2.4;

wings 0.9–1.3 mm wide, 15–25% of body width, ± same color as body;

abaxial ribs not raised;

apex rounded;

oil ducts 1–2 in intervals, 6 on commissure.