Flora of North America species comparison

petioles 10–30 mm;

blades lanceolate to lance-linear overall, 30–80(–150) × 10–30(–50) mm, usually laciniately pinnatisect, primary lobes 3–7+, 15–60+ × 2–20 mm, bases cuneate, ultimate margins laciniate to serrate, ciliate, apices acuminate, faces glabrous or sparsely scabrellous.

petioles 20–50 mm;

blades rounded-deltate to ovate or lanceolate overall, (20–)30–70+ × (20–)30–60+ mm, (1–)2(–3)-pinnatisect, ultimate lobes obovate or lanceolate, 15–45+ × 10–25+ mm, bases truncate to cuneate, ultimate margins entire, sometimes ciliolate, apices rounded to acute or attenuate, faces usually glabrous, sometimes hirtellous.

(10–)30–80+ mm.

(10–)20–50(–100) mm.

± hemispheric or broader, 6–8(–12) × 10–15 mm.

± campanulate, 5–7 × 3–4(–5) mm.

(5–)8–10+;

laminae yellow, 10–25 mm.

0 or 3–5+;

laminae yellowish or whitish, 1–2(–3) mm.

(12–)20–40+;

corollas yellowish, 2–3+ mm.

10–20(–30+);

corollas yellowish to whitish, 2–3 mm.

7–8(–13), lance-ovate to lance-linear, 6–8(–12) mm.

8–12, lanceolate to linear, 4–6 mm.

of 8–12(–16) usually spreading to reflexed, linear, seldom foliaceous bractlets (4–)5–7(–12) mm, margins entire, ciliate, abaxial faces glabrous or ± scabrellous.

of (7–)8(–10) linear bractlets 3–5 mm, ± appressed, margins ciliate, abaxial faces usually glabrous.

in ± corymbiform arrays.

usually borne singly, sometimes in ± corymbiform arrays.

red-brown to blackish, ± flattened (unequally 3–4-angled), broadly cuneate, outer (4–)5–6 mm, inner 5–7 mm (lengths mostly 1.5–2.5 times widths), margins (± corky-winged) patently to antrorsely barbed, apices truncate to concave, faces weakly striate, sometimes tuberculate, glabrous or sparsely strigillose;

pappi 0, or of 2(–4) spreading to divergent, antrorsely or retrorsely barbed awns (0.5–)2–4(–6) mm.

red-brown, outer weakly obcompressed, 7–15 mm, inner ± 4-angled, linear to linear-fusiform, 12–18 mm, margins not ciliate, apices ± attenuate, faces 2-grooved, often tuberculate-hispidulous;

pappi of (2–)3–4, erect to divergent, retrorsely barbed awns 2–4 mm.

= 24, 72.