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, usually green, to slightly blue-green, ternate-pinnately decompound;

petiole sheathing basally to entire length;

blade ovate to orbiculate, 10–30 × 6–30 cm wide, abaxial surface sparsely to densely scabrous to puberulent with triangular hairs on margins and veins, adaxial surface glabrous, sometimes scabrous to puberulent; ultimate segments 1000–8000, ovate, 1–12 × 0.4–2.5(–4.5) mm, relatively narrow, margins entire, usually not reflexed, apex rounded to acute, callus tips 0–0.1 mm, firm but not spinelike, terminal segment 1–5 mm or 15–30 mm if counting entire area with confluent leaf tissue;

cauline leaves 1–2+, usually with more than 5 leaflets.

absent or subterranean.

absent.

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.

1–25+ per plant, 1–3 per stem, ascending to erect, often glaucous, not inflated, 20–80 cm, exceeding leaves, (2–)3–6 mm wide 1 cm below umbel, not brittle, 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.

2–16 cm wide in flower, 7–25 cm in fruit, involucral bracts usually present, often fused basally, sometimes fused nearly throughout in 2–3 groups, to 3 cm, rays (9–)15–35, fertile rays 10–30, ascending to spreading, (1–)3–12 cm in fruit, unequal, glabrous;

involucel bractlets 3–7, distinct or connate basally, linear to lanceolate, 3–6 mm, or occasionally much longer and leaflike, usually subequal to flowers, sometimes longer, margins narrowly scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals usually brown, maroon-red or purplish, occasionally ± tinged yellow or yellow-green, glabrous;

anthers yellow, yellow tinged with brown, yellow-green, or purplish;

ovary and young fruit glabrous.

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

0.6–3(–4) mm, shorter than fruit, shorter than pedicels of staminate flowers.

± 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 elliptic to oblong, 7–15(–20) × (5.5–)6–8 mm, length/width ratio 1.6–3;

wings (0.6–)0.8–1.2 mm wide, 10–30% of body width, same color as or paler than body;

abaxial ribs slightly or not raised;

apex usually obtuse to rounded;

oil ducts obscure.

= 22.