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, mostly 1–2-ternate or ternate-pinnate, divisions often irregular, earliest leaves sometimes simple;

petiole sheathing basally;

blade ovate, 2–8(–12.5) × 2–10 cm, surfaces glabrous;

leaflets not overlapping, primary leaflets undivided or little divided;

penultimate segments narrow, usually less than 2 mm wide; ultimate segments (3–)9–30, linear, channeled or not, 5–60 × 0.5–2.5 mm, larger ultimate segments longer than 6 mm, relatively narrow, margins entire, apex acute or obtuse, callus tips 0–0.3 mm, firm but not spinelike, terminal segment 5–60 mm;

cauline leaves 0–1, if present, much reduced with 1–3 ultimate segments.

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.

1–2 per plant, 1 per stem, ascending to erect, not inflated, 2–10 cm, shorter than leaves in flower, exceeding them in fruit, 1–2 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.

1–3.1 cm wide in flower, 1–4 cm wide in fruit, rays 3–12, spreading to ascending, 0.2–3.5 cm in fruit, unequal, glabrous;

involucel bractlets (0–)1 or few, distinct and usually arising on pedicels, linear, 1–3 mm, subequal to flowers, margins scarious, not ciliate, entire, glabrous.

petals purple to dark pink, glabrous;

anthers purple;

ovary and young fruit glabrous.

petals white, glabrous;

anthers pale or dark purple;

ovary and young fruit glabrous.

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

1–2(–3) mm, shorter than fruit, spreading to erect when fruit is mature.

± 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 compressed, oblong-elliptic to oblong-oval, crowded, 2.5–4(–5) × 1.5–2.8 mm, length/width ratio approximately 1;

lateral ribs 0.3–0.5 mm wide, paler than body, not winglike, corky-thickened and inflexed into commissure, relatively conspicuous;

abaxial ribs not raised;

apex rounded to obtuse;

commissure with raised corky ridge running down center;

oil ducts several in intervals, several on commissure, obscure.