Flora of North America species comparison

petioles 5–20+ mm;

blades ± deltate to ovate overall, 40–75(–150) × 10–45(–130) mm, usually laciniately 1–2-pinnatisect, ultimate lobes (3–)5–7+, oblanceolate or lanceolate to linear, (5–)10–30(–80+) × (1–)4–8(–12+) mm, bases cuneate, ultimate margins incised, dentate, serrate, or entire, little, if at all, ciliate, apices acute to attenuate, faces glabrous or ± hirtellous to strigillose.

petioles 5–20(–30+) mm;

blades ± deltate to ovate or lanceolate overall, 30–100 × 10–50+ mm, usually laciniately 1-pinnatisect, ultimate lobes 3(–7), ovate or lanceolate to linear, (5–)25–60(–70+) × (1–)5–10(–12+) mm, bases cuneate, ultimate margins serrate or entire, often ciliolate, apices acute to attenuate, faces glabrous or hirtellous.

20–150 mm.

20–120 mm.

hemispheric or broader, 4–6(–8) × 6–12 mm.

hemispheric or broader, 5–6 × 5–8 mm.

(7–)8–9;

laminae golden yellow, 10–30 mm.

8–13;

laminae golden yellow, 12–25+ mm.

40–60(–80+);

corollas yellow, 3–5 mm.

25–50+;

corollas yellowish, 2.5–3 mm.

6–8(–10), oblong, 3–8 mm.

(6–)8+, lance-ovate to lanceolate, 4–5 mm.

of (6–)8(–11), ascending to spreading, spatulate to linear, sometimes ± foliaceous bractlets or bracts 3–10(–18) mm, margins sometimes ciliate, abaxial faces glabrous.

of 7–10 spreading, spatulate to linear, seldom foliaceous (± fleshy) bractlets 5–10 mm, margins usually ciliate, abaxial faces glabrous or hirtellous.

usually in open, ± corymbiform arrays.

usually in open, ± corymbiform arrays.

blackish or brown, flattened, narrowly cuneate, outer 3–6 mm, inner 5–9 mm (lengths mostly 2.5–4 times widths), margins antrorsely barbed or ciliate, apices ± truncate, faces obscurely 1-nerved, sometimes tuberculate, glabrous or sparsely hispidulous;

pappi of 2 erect, ± patently barbed awns or scales (0.4–)1–2.5(–4) mm.

blackish or brown, flattened or unequally (3–)4-angled, broadly cuneate, outer 2.5–4, inner 3.5–5 mm (lengths mostly 1.5–2.5 times widths), margins not barbed or ciliate, apices ± truncate, faces sometimes obscurely 1-nerved, sometimes tuberculate, glabrous or hirtellous;

pappi 0, or of 2 erect, antrorsely barbed awns or ± deltate scales 0.5(–1) mm.

= 24.

= 24.