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, dull green or slightly blue-green, pinnate-1–2-pinnatifid, sometimes ternate-pinnatifid or ternate-pinnate-1–2-pinnatifid;

petiole sheathing basally to 1/2 length;

blade usually oblong, sometimes lanceolate, 2–15+ × 1–6 cm, surfaces glabrous;

primary leaflets with well-developed petiolules and not confluent with rachis or sessile and ± confluent with rachis, longer than rachis segments separating them, ultimate segments (5–)7–30, linear, not or only slightly wider in middle than at either end, 3–65 × 0.5–2(–4) mm, relatively narrow, ± flat and wider than rachis, margins entire, apex acute, callus tips 0–0.5 mm, terminal segment (5–)10–25(–40) 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.

usually (1–)3–60 per plant, 1 per stem, spreading to erect, not inflated, 3–47 cm, usually exceeding leaves, 0.3–3 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.

1–4.5 cm wide in flower, (2–)4–9 cm wide in fruit, rays 3–12, erect to spreading-ascending, not reflexed, 0.8–7.5 cm in fruit, subequal, glabrous;

involucel bractlets 6–10, connate basally, sometimes distinct, linear-attenuate or narrowly to broadly lanceolate, 1.5–10 mm, subequal to or exceeding flowers, margins narrowly to broadly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

sepals scarious or greenish, to 0.6 mm ;

petals yellow, soon fading white, or purple, sometimes almost black, glabrous;

anthers yellow;

ovary and young fruit glabrous.

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

(1.5–)2–11 mm, shorter than or rarely 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.

dorsiventrally compressed, broadly to narrowly oblong, 5–15 × 1.5–5 mm, length/width ratio 2.7–3.7;

wings 0.4–0.9 mm wide 20–36% of body width, ± same color or paler than body;

abaxial ribs raised, sometimes prominently raised and winglike;

apex acute to rounded;

oil ducts 2–5 in intervals, 4–10 on commissure, sometimes one in each rib.