Flora of North America species comparison

sessile or petioles 5–15(–35+) mm (± winged);

blades ± elliptic to ovate or lanceolate, 40–80(–150+) × 15–40(–60+) mm, sometimes laciniately 1-pinnatisect with 1–4+ lobes near bases, bases cuneate, margins entire or dentate to serrate, usually ciliate, apices acute to acuminate, faces glabrous or hirtellous.

petioles 20–40 mm;

blades deltate or lanceolate to lance-linear overall, (30–)50–120(–220) × 10–50(–150) mm, sometimes either 1-pinnately lobed, primary lobes 3–5+, lanceolate to lance-linear, 30–120 × 3–25+ mm, or 2-pinnatisect, ultimate lobes linear, 5–30 × 1–2+ mm, bases truncate to cuneate, ultimate margins entire or serrate, seldom ciliate, apices obtuse to acuminate, faces glabrous or puberulent.

10–40(–80) mm.

(10–)40–60+ mm.

campanulate to hemispheric or broader, (4–)5–7(–12) × (3–)6–12(–15+) mm.

campanulate to hemispheric, 4–6 × 5–10 mm.

usually 0, sometimes 1–5;

laminae orange yellowish, 4–8 mm.

5–6;

laminae yellow, 10–30 mm.

(5–)20–60(–150+);

corollas pale yellow to orange, (2–)3–4 mm (gradually ampliate, anthers usually pale).

12–30(–60+);

corollas yellowish, 3–4 mm.

(6–)7–8(–13), elliptic-ovate to lance-ovate, (4–)6–9(–12) mm.

8–12, ovate to lanceolate, 4–5(–7) mm (margins usually yellow).

of (2–)6–7(–10) ± spreading, oblanceolate or lanceolate to linear, ± foliaceous bractlets or bracts 7–35(–60) mm, margins (entire or serrate) sometimes sparsely ciliate, abaxial faces hispidulous near bases, distally glabrous.

of 8–12(–17) usually erect, linear, seldom foliaceous bractlets 3–6 mm, margins ciliate, abaxial faces usually glabrous, sometimes hispidulous at bases.

borne singly or in 2s or 3s.

in ± corymbiform arrays.

blackish to purplish or brown, ± flattened, sometimes weakly 3(–4)-angled, usually cuneate to linear, outer (3–)6–7(–10) mm, inner (4–)6–9(–11) mm, margins proximally antrorsely to patently, distally retrorsely, barbed, apices ± truncate to concave, faces ± 1-nerved, usually smooth, seldom notably tuberculate, glabrous or sparsely strigillose;

pappi 0, or of (1–)3–3(–4+) ± erect to spreading, retrorsely barbed awns (0.2–)2–3(–6) mm.

dark brown to blackish, ± flattened, sometimes unequally 3–4-angled, ± linear, outer 4–6 mm, inner 5–7 mm, margins not barbed or ciliate, apices truncate, faces weakly 2-grooved, glabrous or sparsely strigillose, sometimes tuberculate;

pappi 0, or of (1–)2(–4) erect to spreading, retrorsely barbed awns (1–)1.5–4 mm.

= 48.

= 24 (Mexico).