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 10–50 mm;

blades ± deltate to ovate overall, 50–100(–150+) × (15–)30–80(–120+) mm, usually laciniately 1-pinnatisect or 3–5-foliolate, primary lobes or leaflets ± lanceolate, 20–80(–120) × 10–25(–40+) mm, blades rarely 2–3-pinnatisect, bases cuneate, ultimate margins dentate to serrate, little, if at all, ciliate, apices acute to attenuate, faces glabrous or ± hispidulous.

(10–)30–80+ mm.

(10–)40–150+ mm.

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

hemispheric or broader, 5–6 × 8–10 mm.

(5–)8–10+;

laminae yellow, 10–25 mm.

0 or 3–5+;

laminae pale yellow, 2.5–3.5 mm.

(12–)20–40+;

corollas yellowish, 2–3+ mm.

40–60(–150+);

corollas yellow, 2.5–3.5 mm.

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

10–12, ovate to lanceolate, 6–9 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 10–16(–21) ascending to spreading, spatulate to linear, seldom foliaceous bractlets or bracts 10–20(–40) mm, margins usually hispid-ciliate, abaxial faces ± hispidulous.

in ± corymbiform arrays.

borne singly or in 2s or 3s or in open, corymbiform arrays, erect.

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.

purplish, brown, olive, or stramineous, ± flattened, obovate to cuneate, outer 6–10 mm, inner 8–12 mm, margins (sometime ± winged) proximally antrorsely, distally retrorsely barbed, apices ± truncate, faces obscurely 1-nerved, sometimes tuberculate, glabrous or sparsely strigillose;

pappi of 2 erect to divergent, retrorsely barbed awns 3–4(–7) mm.

= 24, 48.