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, green, 3-pinnate or ternately 3-pinnate, not shiny;

petiole sheathing basally to entire length, glabrous, scarious;

blade triangular to ovate or orbiculate, (2–)3–11 × 1.5–10 cm, surfaces glabrous, rachis glabrous proximally;

leaflets not overlapping;

penultimate segments narrow, usually less than 2 mm wide, ultimate segments 200–1000, ovate to oblanceolate, (0.3–)2–5(–7) × 0.5–1.5 mm, length/width ratio 1–3.5(–5), relatively firm, ± thick to ± thin, margins entire, apex usually rounded to obtuse, sometimes acute, callus tips 0 mm, terminal segment 2–3 mm;

cauline leaves 1–2(–3), with more than 5 ultimate segments, similar to basal leaves.

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.

1–3(–4) per plant, 1–3 per stem, erect, not inflated, (3–)10–16 cm, exceeding leaves in fruit, 1–2 mm wide 1 cm below umbel, scaberulous distally.

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.

1–2.5 cm wide in flower, 3.4–8(–14) cm wide in fruit, rays 3–12(–20), spreading, (1.5–)3–5 cm in fruit, unequal, glabrous, scabrous, or densely scabrous;

involucel bractlets (0–)4–7, distinct, linear-lanceolate, 1–4 mm, shorter than or subequal to flowers, margins broadly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, glabrous;

anthers yellow;

ovary and fruit glabrous or slightly scabrous on ribs when young, glabrous and glossy when mature.

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

3–8(–10) 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, oblong-elliptic, glossy, 5–8 × 3–5 mm, length/width ratio 1.5–3;

wings 0.4–0.8 mm wide 15–40% of body width, paler than body;

abaxial ribs not raised;

apex rounded to truncate;

oil ducts 1 in intervals, 2(–3) on commissure, prominent.