Flora of North America species comparison

petioles 10–30(–70) mm;

blades either ovate to lanceolate, 30–70(–120) × 12–18(–45) mm, or 1-pinnately lobed, primary lobes 3–7, ovate to lanceolate [linear], (10–)25–80+ × (5–)10–40+ mm [blades 2(–3)-pinnatisect], bases truncate to cuneate, ultimate margins serrate or entire, usually ciliate, apices acute to attenuate, faces pilosulous to sparsely hirtellous or glabrate.

(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.

10–20(–90) mm.

10–40(–100+) mm.

turbinate to campanulate, 5–6 × (6–)7–8 mm.

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

0 or (3–)5–8+;

laminae whitish to pinkish [yellowish], 2–3 or 7–15+ mm.

usually 6–8, sometimes 0;

laminae orange-yellow, 2–15(–18) mm.

20–40(–80+);

corollas yellowish, (2–)3–5 mm.

(10–)40–100(–150+);

corollas orange-yellow, 3–4 mm.

(7–)8–9(–13), lanceolate to oblanceolate, 4–6 mm.

6–8+, ovate or lance-ovate to lanceolate, 2–10 mm.

(6–)7–9(–13) ± appressed, spatulate to linear bractlets (3–)4–5 mm, margins ciliate, abaxial faces usually hispidulous to puberulent.

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.

usually borne singly, sometimes in open, ± corymbiform arrays.

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

outer red-brown, ± flat, linear to narrowly cuneate, (3–)4–5+ mm, margins antrorsely hispidulous, apices ± truncate or somewhat attenuate, faces obscurely 2-grooved, sometimes tuberculate-hispidulous;

inner blackish, ± equally 4-angled, linear-fusiform, 7–16 mm, margins antrorsely hispidulous, apices ± attenuate, faces 2-grooved, tuberculate-hispidulous to sparsely strigillose;

pappi 0, or of 2–3(–5), erect to divergent, retrorsely barbed awns (0.5–)2–4 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, 36, 48, 72.

= 24, 48.