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.

(rarely in 3s) sessile;

blades lance-ovate or oblanceolate to lanceolate or linear, 40–100(–200+) × (2–)5–25(–45+) mm, bases cuneate to rounded, margins usually coarsely dentate to serrate, sometimes entire, sometimes ciliate, apices acute to acuminate, faces glabrous.

(10–)30–80+ mm.

10–40(–100+) mm.

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

± hemispheric or broader, (3–)6–10 × (8–)12–20+ mm.

(5–)8–10+;

laminae yellow, 10–25 mm.

usually 6–8, sometimes 0;

laminae orange-yellow, 2–15(–18) mm.

(12–)20–40+;

corollas yellowish, 2–3+ mm.

(10–)40–100(–150+);

corollas orange-yellow, 3–4 mm.

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

6–8+, ovate or lance-ovate to lanceolate, 2–10 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 (3–)5–8(–10) spreading to reflexed, oblong to lance-linear, often ± foliaceous bractlets or bracts (3–)8–12(–25+) mm, margins usually ciliate, abaxial faces usually glabrous, bases sometimes hispidulous.

in ± corymbiform arrays.

(erect or nodding at flowering, usually nodding in fruit) borne singly or in open, ± 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.

blackish or brown, usually ± flattened, sometimes ± 4-angled, ± cuneate, outer (3–)5–6+ mm, inner 4–8 mm, margins (± thickened or winged) retrorsely ciliate, apices ± truncate to convex, faces ± striate, glabrous or tuberculo-strigillose;

pappi of (2–)4, ± erect, retrorsely barbed awns (1–)2–4 mm.

= 24, 48.