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 due to hairs, usually 4-pinnate or 3-pinnate-pinnatifid, sometimes ternate-3–4-pinnate;

petiole sheathing basally;

blade broadly ovate, 2–10 × (0.5–)1.5–9.5 cm, surfaces hairy, ultimate segments 500–2500, narrowly elliptic, obovate, 2–5 × 0.5–1.5 mm, margins entire, apex obtuse to rounded, callus tips 0.1–0.2 mm, terminal segment 9–15 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.

1–3(–15) per plant, 1 per stem, spreading to erect, not inflated, 8–22 cm, exceeding leaves, 1.5–3 mm wide 1 cm below umbel, hairy.

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.

1.5–7 cm wide in flower, 6–13 cm wide in fruit, rays 6–24, spreading-ascending, 1–5 cm in fruit, subequal or unequal, hairy;

involucel bractlets 8–12, distinct or connate basally, linear to linear-lanceolate, 2–4 mm, shorter than or equaling pedicels (except when buds are young), margins scarious but inconspicuously so because obscured by hairs, ciliate, entire, densely hairy.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals purple or almost black, rarely yellow, glabrous;

anthers white or purple;

ovary and young fruit densely hairy when young, often ± glabrous when mature.

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

0.5–1.1 mm, usually 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, ovate to orbiculate, 4.5–11 × 4–9 mm, length/width ratio 0.9–1.25;

wings 1.2–2.5m wide, 30–80% of body width, paler than body;

abaxial ribs slightly raised;

apex rounded;

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

= 22.