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, 2–4-pinnately or ternate-pinnately dissected;

petiole conspicuously sheathing usually entire length, less often basally or 1/2 length, purple;

blade triangular or rhombic to ovate, (2–)3–6(–9) × 0.5–4 cm, surfaces glabrous;

leaflets not overlapping, basal pair of primary leaflets sessile or short-petiolulate, petiolules seldom over 1 cm, penultimate segments narrow, usually less than 2 mm wide, ultimate segments 50–300(–600), elliptic, a few oblong, 0.6–4.3(–5) × (0.3–)0.5–1.3 mm, length/width ratio 1–3.5(–5), relatively firm, thick or thin, margins entire, apex mostly rounded or obtuse, callus tips 0–0.05 mm, firm but not spinelike, terminal segment 2–3 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.

1–5 per plant, 1 per stem, prostrate to erect, not inflated, 5–17 cm, exceeding leaves, 1–2(–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.

1–3 cm wide in flower, 1–9 cm wide in fruit, rays 5–17, ± spreading, 0.5–3.7 cm in fruit, subequal or unequal, glabrous;

involucel bractlets (0–)1–5(–7), distinct, linear, 1–3(–4) mm, subequal to flowers, margins narrowly to broadly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white, glabrous;

anthers purple or reddish;

ovary and young fruit not glossy, glabrous.

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

(4–)5–16 mm, often longer 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, narrowly or broadly elliptic, broadly oblong, or ovate, 6–13 × (3.3–)5–7.5 mm, length/width ratio 1.2–2.6, not glossy;

wings 0.8–1.8 mm wide, 25–45% of body width, paler than body;

abaxial ribs not raised;

apex rounded to obtuse to acute;

oil ducts 1 in intervals, 2–4(–6) on commissure.