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.

forming 1 rosette of 4–20 leaves atop pseudoscape, ± bluish green, ternate-1-pinnate-1-pinnatifid;

petiole usually sheathing basally, rarely 1/2 or entire length;

blade oblong or lanceolate, 1–6 × 1–3 cm, surfaces glabrous, scabrous, or papillate; ultimate segments 50–400, ovate, 1–5(–8) × 0.5–1.3 mm, margins entire, apex acute, callus tips 0–0.1 mm, terminal segment 0.5–1.5(–3) mm;

cauline leaves 0.

absent or subterranean.

present, often aerial, 2–15 cm.

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.

1–20 per plant, 1 per stem, ascending to erect, not inflated, 2–20 cm, exceeding leaves, 1(–2) mm wide 1 cm below umbel, glabrous, scabrous, or papillate.

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.

0.8–2.5 cm wide in flower, 3.5–10 cm wide in fruit, rays 3–13, ascending, then broadly spreading or sometimes reflexed in fruit, 1.5–3(–4.5) cm in fruit, unequal, glabrous or papillate to scabrous on veins;

involucel bractlets 3–5, usually distinct, linear, 1–3(–4) mm, those subtending pedicels of male flowers usually longer than those subtending pedicels of bisexual flowers, subequal to flowers, margins scarious or not, not ciliate or shortly so, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals yellow, rarely purple; glabrous;

anthers yellow to purple;

ovary and young fruit glabrous.

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

2–5 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.

not dorsiventrally compressed, broadly oblong, 5–7 × 2.2–3.1 mm, length/width ratio 2–2.6;

lateral wing 0.4–0.8 mm wide, 33–55% of body width, paler than body;

abaxial ribs prominately raised, forming wings 0.3–0.4 mm wide, about as high as lateral wings;

apex obtuse to rounded;

oil ducts 3–4 in intervals, 4–7 on commissure.