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.

sessile or petioles 10–50 mm (winged);

blades lance-elliptic to lance-oblong, 80–120(–250) × 30–100 mm (proximal usually with 1–2 lobes near bases), bases cuneate, margins laciniate to serrate, ciliate, apices acuminate, faces glabrous.

(10–)30–80+ mm.

(10–)30–70+ mm.

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

± hemispheric or broader, 6–10 × 18–25 mm.

(5–)8–10+;

laminae yellow, 10–25 mm.

6–11;

laminae yellow, 4–8 mm.

(12–)20–40+;

corollas yellowish, 2–3+ mm.

50–100+;

corollas yellow, 2.5–3.5 mm.

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

13–16+, oblong to lance-ovate, 6–10 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 8–10 usually spreading, lance-linear to lanceolate, sometimes ± foliaceous bractlets or bracts 10–20(–75) mm, margins entire or incised, ciliate, abaxial faces ± hispid at bases.

in ± corymbiform arrays.

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.

olivaceous green, ± flattened, unequally 3–4-angled, cuneate, outer 5–6 mm, inner 6–7 mm, margins antrorsely to retrorsely barbed, apices truncate to concave, faces weakly striate, glabrous or sparsely puberulent;

pappi 0, or of (1–)3(–4) suberect, retrorsely barbed awns 2–4 mm.